Patron Request: Undertail; Harem Run (Patreon)

The title's based on the gameplay approaches you can take; generally Genocide (kill em all) or Pacifist (make friends) runs.  Also fun fact I learned; the creator  asked for creators to distinguish their porn stuff as Undertail instead of Undertale.

A long time ago there were monsters and there were humans. After a great misunderstanding, there was a ruthless battle between the two species. Humans claimed victory, and as time went on, people began to assume that the monsters were gone from their world forever. That all changed one day... a young man fell down a hole...

While this may sound like a familiar story, I assure you that is it very different in many ways... wrong, some might say. Inaccurate even. Downright pornagraphic. But no matter how a story is told, and no matter what adventure you are on... it all comes down to your choice.

The young man found himself in darkness. There was no light to be seen, but he didn't feel like he was hurt after the long fall. He wondered how that could be. He wondered if he was dead, but that didn't seem right. He could hear rustling grass and if he were dead, he didn't think everything would feel so soft... and warm.

"Excuse me..." A low and soothing woman's voice blew past his ear. It seemed to resonate all around him as if her voice vibrated the air around him. "But were you going to lay on top of me all day? I had other plans, I'm afraid."

The young man realized he hadn't actually tried to get up yet. He pushed off from whatever he was on, squinting as he finally saw some light. Far above him was a ray of orange sunlight shining down the hole he must have come from. Right below him, he saw a woman coated in thin, white fur. She wore nothing but a long apron, and while it kept her privates covered she was thickly built enough that the sides of her hips and breasts hung out on either side. Long, almost dog-like ears hung on the sides of her head and a set of short, pearly horns poked out from the longer hair on her head. She was tall enough that he was able to fit entirely on top of her with room to spare, the wide figure also nearly seven feet tall. While the curvy monster of a woman startled him, he was quickly distracted as he realized his hands were each resting on top of one of her pillow-like (in both size and softness) breasts. He blushed heavily as he realized his head must have been stuck between her massive tits.

"Not that I mind exactly," the monster woman giggled. The small human quickly pushed himself back off of her all the same.

"Sorry," he muttered, the blush just spreading wider on his cheeks as he tried to take in his situation.

"Oh it's alright. I was just dozing in the sunshine," the woman replied. She boosted herself to her impressive height, though the human didn't feel any real fear of her. She smiled with her small fangs and her big and fluffy appearance felt so disarming. "We don't get a lot of it down here, and it's one of the few places you can see the flowers." As the human fidgeted, Torial leaned down and rested her broad hands on her knees. "Well aren't you a cute little monster. What's your name?"

"I... uh..." he smaller boy answered. "I'm not a monster. I'm just... lost." He wasn't sure if he should tell her his name just yet, but he kept glancing down at her chest. Her huge breasts hung low and heavy, giving him more cleavage than he could even look at in one eyeful. A thick, wooly finger took his chin and tipped his head up to face her.

"Lost? That's an odd name," she pondered, seeming ignorant of his pervy glances.

"It's not! I mean, I'm... uh..."

"You're frisky is what you are," giggled the horned woman. "Well, Frisky, I'm Toriel and I'm the person you just landed on. It's very nice to meet you."

"Oh! So that's what... thank you!" Frisky blurted out at last. "I didn't mean to be a bother."

"Oh you're no bother at all!" Toriel gushed. "In fact, we should really make sure that you're okay. Did you want to come over? I live in a house not far from here."

"I uh..." Frisky swallowed hard. He had no idea what was going on. All he knew was that he was lost and that there was only one way out he could see (which was hundreds of feet up in the air). Maybe someone would have an airship or a giant ladder he could use. He realized then and there that he would never get anywhere if he didn't focus and take action. The wishy washy, shy kid he was before would have curled up and cried if it wasn't for this generous goat-dog-yeti (?) woman.

Looking at her big, warm, fuzzy cleavage, Frisky was filled with determination. “Yes!” he declared confidently. "I'd love to take you back home!"

"Oh!" Toriel looked surprised as she stood back up. "Well, I thought you needed MY help but..." She smiled meekly, and he thought he saw some blush across her short snout. "Yes! I think I'd like that very much. How polite of you." Toriel held out a fluffy hand for him. "It's right this way. Hold on tight now, okay?"

"Okay, Miss Toriel." Taking his newfound confidence to heart, he reached past her hand and grabbed one of her breasts. They both froze, her in surprise while Frisky realized just how soft it was to grab again. He gave a few curious squeezes, feeling a hard, thick nipple poking through her apron against his palm. "Is that tight enough?"

"I... ah..." Even towering over him, the motherly monster seemed flustered. "I meant to hold onto my hand... not that this is bad or anything..."

"Oh! Sorry!" Frisky flashed her a polite smile before taking her hand instead. They walked back to her house in silence, though he heard her clear her throat a lot and avoiding meeting his eye for a while. They walked through the dark cave a short way before he saw some lights ahead. It was a mishmash of torches, candles, lanterns and light bulbs wedged into the walls and giving off a dull light. He clearly was underground, not seeing a speck of sunlight for days to come.

Everything else, however, seemed quite familiar. Toriel's home was a pink, two-story house with a basement that would have fit in anywhere on the surface (besides the extra large door frame). Toriel cooked him a nice dinner of some unnamed meat and a slice of sweet pie, actually quite happy to be serving some company. Frisky took every opportunity to thank her and and praised her and her cooking at every turn. She giggled and blushed more noticeably every time, his buttering up clearly working wonders on the chubby monster milf. She was already sweet on him from the start, but now she was downright clingy. She hugged him whenever he went past and made sure he didn't need anything. Most of the time Frisky just told her he was fine and that she was being a great hostess. That just got more blushing and giggling.

At last it came time for bed. She had to tell him so, because he realized that there was no obvious night or day down here. "Okay. Where should I sleep?" Frisky asked. He laid back on the couch and put his arms behind his head. "I could just sleep out here. I don't want to be too much trouble."

"No! I couldn't have that!" she blurted. "I do have a spare room or two. My ah... well, my family used to live there. I could clean it up for you!"

"Oh don't go through that kind of trouble for me," Frisky said, staying polite while playing his cards just right. "Couldn't I just sleep in your bed? I'm not that big, so I won't take up much room."

Toriel bit her lip between her fangs and gave a gruff little sniffing noise as she thought. "Well when you put it that way... yes. Why not? I can make sure you're safe from there."

"Safe?" Frisky asked, raising his eyebrows curiously.

"Well... yes. In fact, before we go... there's something I should show you. Please follow me." Frisky hopped up and took her hand instinctively.

"Whatever you say, mommy." Toriel blushed intensely, but she smiled widely. "Oops! Sorry, that just slipped out."

"That... that's okay," Toriel stammered as she led him to the basement. "You can call me whatever you like."

The basement was rather small and simple. It was a single square room with nothing in it but another door and a training dummy. It wore a dress made of rags and had a cute doodle of a mean face on its stuffed head, complete with little fangs and the word "rawr" written by its mouth. Frisky eyed the dummy and the door before looking back up at Toriel.

"There are many monsters down here in the underground," Toriel warned, her voice still sweet and gentle but taking on a more serious tone. "Not all of them friendly. Many are bitter or confused from staying down here so long. They may not know what to do with a human, or lash out at you. That is why I want to be sure... to ensure that you know how to handle yourself out there if the worst should happen." Toriel stepped out next to the scarecrow of a lady monster and rested her large hand on its head. "I assume you know about monsters on the surface."

"Not that they're real," Frisky admitted. "But yea. Stories and drawings and stuff."

"Good. Then I want you to show me what you would do with one of those monsters." Toriel stepped away and Frisky stepped closer. He thought about what he would do. He had seen a lot of anime and gone to a few websites with various monstergirls. It felt pretty universal, from what he saw... so he kissed the dummy on the mouth and groped its chest. For whatever reason, Toriel had even stuffed some cotton into its chest to give it little breasts underneath its dress.

"Like that?" Frisky asked, tilting his head curiously at her. Toriel was blushing harder than ever.

"I uh... ahem. I think humans may have different greetings than we're used to...?" She scurried closer and gently pulled his hand back from its chest. "I imagined you would attack it, but... nevermind. We can work on it tomorrow. We should really get you to bed."

Frisky got changed into some pajamas that the motherly monster gave him. The striped shirt and sleep pants were a little loose, but comfortable. He briefly wondered briefly why she had such a thing in the first place, considering her monstrous size. Toriel knocked to ensure he was dressed before she entered dressing in a silky pink nightie. Her curves were left even more easy to see than her casual robe, and Frisky tried not to swallow too loudly. At least the thick and fluffy blanket hid his erection for the time being. Frisky had been right about one thing though: he didn't take up much room. Her bed was big enough to fit the giant woman twice over. Toriel slid under the covers and smiled meekly at him.

"I hope you've enjoyed your stay underground so far," she said sheepishly. "I'm glad you liked my cooking and that the old pajamas fit."

"Yea. And the bed's really comfy," Frisky added. He stared at her as he laid his head on the big overstuffed pillow.

"I'm so very happy," she said, a small but clearly genuine smile crossing her face. "I'm just... well, I've been alone here for quite some time. I had a family once, but between one thing and another... I'm here by myself. But when you fell out of the sky, I was so happy to see you. Someone to keep me company and cook for and hold. I want you to know, no matter what happens, my door is always open. In fact, if you wanted to stay here forever... I just want to make sure you're enough of a man to be able to last out there before I risk letting you go. I know you said it was a mistake, but I'd be glad to be your ma-"

Seeing that Toriel would talk herself in circles for ages if he let her, Frisky summed it up with a kiss. He leaned into her tall and fluffy body, pushing his lips against hers while his hands rested against her massive tits. The monster woman seemed shocked but her mouth opened wide, letting his smaller tongue run alongside hers. She slid her large, strong arms around him and held him close, mashing his chest and hips against her huge and unbelievably soft chest. He felt his erection growing as it rubbed against her jiggling boobs, which were in constant motion as the motherly monster started to squirm. The thirsty milf finally released him long enough to rest her head back on her pillow, breathing heavily and slowly licking up their mixed spittle as if cherishing the taste.

"You're the best mom," Frisky said with a proud smile (which was similarly gleaming with the big woman's saliva). Toriel's eyes welled up with tears of joy as her smile grew wider, pulling the human back into an even hungrier kiss. Their sloppy makeouts went on as Frisky grabbed what he could of her mammoth breasts, pushing her loose clothes aside to get his hands on her fat, hard nipples. He felt every moan vibrate through her chest and tongue as the huge woman leaned limply into him, letting the small human guide and feel her up as he wished. She only stepped up at one point by taking his hand without breaking their kiss. She guided him lower still, only for Frisky to find that his hand could only reach her stomach. He got the idea all the same, grunting and twitching a few times. He felt his fingers brush between her legs, but just barely and briefly. He could still feel how soaking wet she was down there.

"Just a sec," he said quickly as he broke their kiss. She moaned and rubbed her muzzle against him, trying to draw him into another embrace. Frisky had other ideas as he slid lower in bed, finally low enough to cup her pussy. It was warm and thick, and it easily parted to the touch. He giggled as he felt just how wet it was, like a tiny hot bath for his fingers. Toriel started to moan deeply, but it only grew loader when Frisky brought the next step into his adjustment. He latched his mouth onto her thick nipple, sucking on it with soft, wet noises that were drown out by her cries.

"Oh my word! Yes, baby! What a good child!" she rambled softly, even with them as the only ones in the house. Frisky started sucking more roughly and even nipping at her breasts, but the giant mother only grew more excited. When he dug deep enough, he felt her oversized clit slick with her juices, letting his little hand run over it with ease. Her moan quivered as she shuddered and Frisky was surprised to find her goat-like nature shining through as he tasted a thick, sweet cream coming from her nipples. He started to play with the other one, keeping each teat busy between his mouth and his hand. It was perhaps the tastiest thing he'd ever tasted. The flavor of Toriel's breast milk filled him with determination.

"I want you, mommy," Frisky said, once again breaking his mouth away from her. A small splash of milk with went his lips as she nodded.

"Yes! Please!" she panted, rolling over and laying out on her back. She hastily pulled off her robe, leaving her thick white body on display for him as she spread out her meaty thighs. "You're such a good boy! Such a wonderful son and husband! Fill up mommy's pussy pleaaaase!" She was clearly wild with lust now and Frisky could see her pussy dripping with her own juices. After so much hospitality and driven by his newfound confidence, he couldn't say no to such an offer.

He hastily squirmed out of the pajamas and mounted the big white woman. They moaned and grunted as Frisky slipped inside her with incredible ease thanks to her abundantly wet pussy. Frisky could even hear the squishing sounds as he started to pump inside her, resting his head on one of her giant tits. Toriel moaned and did her best to lay still, but her body wobbled with every thrust so that she provided her own rhythmic humping to echo Frisky's. She lifted her breasts up to put one to Frisky's mouth, letting him nurse from her as she raised the other to her own lips and drank with him. It was the most wildly erotic thing that Frisky had ever seen, even in his dirty monstergirl hentais. He had never felt so good as when he came inside his monster mama, gasping as his little hands squeezed her tits hard to hold himself steady. He still shook violently, and feeling his cock twitch against her clitoris while his seed spilled over it made her shudder and cum as well. While Frisky's orgasm was a few solid spurts, hers was a thin and slow wave of warm juices that washed over his hips. Their passionate cries filled the empty house, letting the lonely housewife bury her sorrows in human cum.

"That was..." Toriel panted as Frisky collapsed on her. It was his first time doing the deed, let alone with someone so huge. He appreciated her pillowy tits more than ever as he tried to catch his breath. "I... I don't have the words for it. Not even my husband had pleased me like that."

"You're welcome," Frisky squeaked wearily, sweating all over his monster mother. Not that she seemed to mind, considering all the fluids around the bedsheets right now. She giggled and hugged him tightly against her chest.

"I'm sorry about earlier," she said as she kissed him on the head.

"Which earlier?"

"With the dummy. I thought you would need to fight your way through the underground to get out of here. To show me you're a real man and a warrior. But... I can see you're a loving little soul. I think that's more important to being a man than any strength." Frisky giggled and blushed, burying his face into her tits again. "If... if you wish to go, I won't stop you. But I mean it. I'd let you live here forever."

Frisky sighed and nodded. "I need to see if I can get back out," he confirmed. "I'll never rest easy if I don't try. But if..." He shook his head. Confidence! Determination! "WHEN I do get out, I'll come back here and be with you again. You're the best mommy ever."

Toriel's eyes became wide and watery again. She hugged and kissed him tightly, rolling over to smother him beneath her soft tits and belly. They spent most of the night exploring each other, mouths and hands hand genitalia applied to their partner any way they could. Toriel cradled him in her lap, letting him nurse while she stroked him off. She mounted him and pumped her huge, heavy hips on his cock. She wrapped it in her warm jugs and played with his balls while his cock vanished between her tits. She was clearly proud of him and wanted to give him a night to remember so he had something to come back to.

Because of all that, they stayed up late and slept in later. It wasn't as if they could lose daylight in the underground anyway. He changed back into the jeans that she’d cleaned for him, but he decided to keep the striped shirt she gave him. It was loose, comfy, and warm enough for the cool tunnels. Toriel led him back into the basement, the dummy apparently put away since it was nowhere to be found. She walked him through the back door and down the long tunnel that went from tile to raw stone. At the end was a large slab; an almost ornamental hunk of rock that blocked the way.

"This will lead you to the way back to the surface," Toriel told him. "Follow the roads and you will reach the castle. Beyond that is the only way back to the human world." She squeezed his hand and knelt down, giving him another tongue-filled kiss. "You can do this."

Frisky took another peek at her cleavage and nodded confidently. He turned to the stone slab and with a minute or so of grunting and shoving, the door open was open enough to fit through. He squeezed through the crack and looking back, he waved at Toriel. She smiled widely, sniffed back a tear and waved back before she shut the door behind him.

Frisky took his first look at the underground outside of Toriel’s cave. It was dark... very dark. A dense wood of dead trees surrounded by snow, only pierced by a narrow dirt road. It was almost as different from the cozy and oversized monster house as he could have expected. He took a deep breath and started down the road. Everything echoed strangely and he kept hearing rustling in the trees. There weren't enough leaves to hide birds or squirrels, but he didn't see anything moving along the ground. He built up a cold sweat and stopped when he thought he saw a shadow zipping through the woods. It looked like it was just his imagination, but when he stopped, the sound of footsteps kept going. They stopped about two seconds after his did, a lot longer than he expected echoes to go. He testingly walked another few seconds before he stopped again. It had the same delay. He broke into a jog, picking up the pace before stopping on a dime. There was a rapid mimic of his steps behind him until his pursuer seemed to catch on. He thought it might be Toriel, but it was far too soft and quiet. He knew her steps were far too heavy to be so subtle. It was much... lighter. With a deep breath, he turned around to see a skeleton standing a few feet behind him. He was in a baggy blue hoodie and sweats with a dull gleam to his eye.

Frisky felt about ready to scream in surprise, but the creature just stood there. Bolstering his courage, he shot first. "Sup?" he asked dismissively.

"Sup," the skeleton replied in a surprisingly deep and casual voice. He stuffed his boney hands into his front pocket. "How's it going?"

"Good. Thanks." Frisky nodded and stuck his hands in his pockets to try and fit in. "Whatcha doing?"

"Following you. That cool?"

"I guess..." Frisky said cautiously. "Why?"

"Dunno. Nobody's ever come out of that door before."

"Ever?"

"Well, not since we moved in here." He kicked at a piece of snow that sullied the road. "Name's Sans. What's yours?"

"My mom calls me Frisky."

"Heh. Cute." The skeleton grinned. It was odd to see when he had no lips. His jaw just sort of curled and his sockets closed up tighter. "So look... I'm not gonna tell on you. I'm no snitch."

"Tell on me? I didn't do anything."

"But you're a human, right?" Sans stepped forward. When Frisky didn't flinch, the monster walked a slow circle around him and sized him up. "We haven't had one of you in a long time. They don't tend to last long..." His glowing eyes looked Frisky up and down. "But... I hope you're different." He slapped a bony hand on Frisky's arm, flashing another skeleton grin. "Take care, you hear?"

Frisky nodded with a confused look on his face. Sans was about to turn when a loud and nasally shout cut through the forest, ruining the calm conversation and the serenely dark forest.

"SANS! What did you find?!"

"Ahh dammit... okay, Frisky. Be cool. Nothin', bro!" he called back.

"It doesn't sound like nothing! Who did you just tell to be cool!?"

"Just... tellin' myself. Be cool, Sans. Keep being cool. Nice job."

"I don't believe you! I'm coming over to investigate! ...and if it's a human, tell them to wait there and pretend I'm being stealthy!" With a lot of clanking and clomping, a second skeleton came running into the road ahead of them. He leaned on his boney knees, breathing heavily despite his clear lack of lungs. He wore red medieval armor and boots, about twice as tall as his short and chubby-looking brother. He raised a gloved hand towards the two of them, but he took another minute to catch his breath.

"You there! New guy!" The tall skeleton wiped his brow despite an entire lack of sweat. "Are you alright!? Have you been fucked by any humans?!"

Frisky stared at him. He glanced over to Sans, who smiled nervously and darted his eyes between them. "No," Frisky said honestly. "I haven't."

"PHEW!" The skeleton rose back up to his full intimidating height, stretching and cracking his back. "Thank goodness. Another successful scouting mission by the GREAT Papyrus! Nyahaha..."

"Nyaha...?" Frisky repeated.

"He just... does that," Sans assured. "Yea, no human fuckers here, bro. I think we're clear."

"Excellent! As for you, small human-shaped monster!" Papyrus squatted down, hands on his knees to make up for their height difference. "You be on the lookout, alright? If you see any humans, you use this." He reached into his armor and pulled out a very dusty and dented old whistle. "And I'll come running! I've been working on my running lately, so I'll be there real quick! You've got to watch out for those humans from what I hear."

"What did you hear?" Frisky asked as he took the whistle and tucked it into his pocket.

"Oh! Well I've never seen one, but I hear they're terrible creatures! Things with flesh on their bones (no offense) and big patches of hair on their heads (no offense)! I hear they keep sending heartless spies into our land with one terrible goal in mind: TO FUCK EVERY MONSTER IN EXISTENCE!"

Frisky and Sans watched him blankly.

"That is why I vow to never be fucked by a human! I refuse to let them ever enter my bone zone! Nyahaha..."

"That... won't be a problem," Frisky said calmly.

"Good! I mean... what? Nyaha?"

"I'm..." 

Sans elbowed Frisky in the side, cutting him off. "Hungry. You're HUNGRY, right, dude? How about we go get some dope spaghett?"

"Why didn't you say so!?" Papyrus erupted. "I happen to be a master of the pasta arts! Come! Right this way! I can try out my new recipe!" He marched ahead of them proudly as Frisky and Sans followed calmly behind.

"Are there 'recipes' for spaghetti?" Frisky asked quietly.

"Let's just say I'm glad I don't have a tongue," Sans chuckled back.

The skeleton brothers lived in a wooden shack a little ways outside of the main village. Frisky wasn't desperately hungry, but all in all, strawberry ice cream spaghetti wasn't so bad. "So, Frisky!" Papyrus said jovially as she wiped ice cream and spaghetti sauce from his mouth with a gauntleted hand. "What brings you around to Snowden?"

"Snowden?" Frisky asked before slurping up some more strangely fruity pasta.

"It's the name of the village up the road. They call it that cuz it's always snowed in," Sans said with another of his weird skeleton smiles.

"Oh very funny! I'll have you know I'm pretty much the guard of this place, nyahaha!" Papyrus boasted. He stood up and flexed his muscle-less arms.

"He means we shovel the paths when the snow gets bad," Sans corrected. "But it's good work."

"It would be better work if you weren't so lazy!"

"Hey, I'm workin'."

"I caught you sleeping at your post yesterday! And the day before you were just filling a notebook with skeleton puns!"

"Hey, comedy's hard work. I mean, if you got a bone to pick-"

"SANS I SWEAR TO THE UNDERGODS!" Papyrus lunged across the table, grabbing at his pudgier brother. Sans just grinned and hopped away from his reach. "This is why the royal guard won't take us seriously! Because you won't act like an actual guard and because I can't master my spaghetti recipe! Captain Undyne will never respect a guard who can't make proper noodles!"

Frisky watched the skeletons chase each other around the kitchen table while he finished his soda, thinking things over. "Did you say the royal guard?"

The skeleton brothers froze and looked up from their struggle, Papyrus holding Sans back by his hoodie. The shorter skeleton's sockets went wide and he gave Frisky some rapid gestures. Slicing his throat, waving his hand; anything to stop the conversation.

"Oh yes! I happen to be the student of the captain herself! She's the finest warrior in all the land and an expert human-hunter."

"Well you asked what brings me to Snowdin," Frisky went on. "I'm supposed to be heading towards the castle."

"Well that's great!" Papyrus said cheerily. Sans swallowed hard as his big brother let go, dropping him to the floor. "As your best friend The Great Papyrus, I can take you to see her! I'm sure she'd be glad to help a fellow monster!" Papyrus gasped and clapped his gauntlets to his mouth. "I'm gonna need to make more spaghetti for the trip! Papyrus awaaay!"

The bigger skeleton ran off into their kitchen, noisily clattering around. Sans sighed and shook his head. "The castle, huh?" he asked, his smirking expression drooping.

"It's where the exit tunnel is, right?" Frisky said with a shrug. "It's past the castle from what I heard."

Sans dusted himself off. "Let me put it this way... remember how humans don't last long down here?" Frisky nodded. "It's not because of the monsters. Half of them don't even recognize humans, and the others barely even remember them. They're not so bad after all these years. The real trouble is the king... he pushes for this anti-human propaganda. Hates the crap out of 'em. And his loyalists... or at least, those numbskulls slow enough to believe him..." He jerked his thumb towards the kitchen. "They'll bring them to the king and he'll crush you on sight."

Frisky looked around their weird little cabin. It was cozy and one corner was littered with comic books, cook books and joke books in a sloppy stack. An old TV with some outdated video games was plugged in another. After meeting Toriel and eating weird spaghetti, these two couldn't be all bad. A little stupid, maybe, but seeing the open notebook full of skeleton puns and the half-eaten ice cream pasta filled him with determination. "Won't I be safer if you guys come with me?"

"Us?!" Sans' eyes widened and he shuffled his sneakers on the floor. "I dunno, man. We're not exactly movers and shakers, even around here. Definitely not royalty, so  when it comes to the king himself..."

"But you're nice. You're funny. Even if you just shovel sidewalks, people here would know and respect you. I'm not asking you to stick your necks out. You'd be like my wingmen." He folded his arms stubbornly. "And you said you hoped that I lasted."

"Oof... you're breaking my ballbones, kid," Sans groaned, scratching his skull with a dull scraping noise.

"What's the matter, Sans?" Frisky asked. He glanced at the notebook and Sans was surprised by the bold look that came to his eye. "I thought you skeletons had spines."

Sans gave a sputtering laugh before he fell over cackling. He rolled around while Frisky watched him with the utmost confidence. "Holy shit, my dude," Sans sighed. "You really are alright." He grunted and hefted himself back to his feet. "Alright. Let's do this. Stick and stones won't break these bones."

"SANS I WILL SHOVE LUNGS INTO YOU AND THEN CHOKE THEM OUT OF YOU!!"

The village itself was pretty small, but cozy. Frisky found his eyes wandering from wolf people to minotaurs to gargoyles that wandered by, hardly giving him a second glance. His gaze lingered on the sexier monsters that went by: a leggy rabbit-person in a short secretary skirt, a dog-like milf whose fussing over her puppies left her bending over and jiggling around in her dress, a blue ice spirit that bumped into a flaming man that made her clothes burn off in an instant. He didn't know there was an "underground," but it definitely had its sexy side.

"Pants, dude," Sans said lowly as they walked through town.

"Oh. Sorry, I must have been staring," Frisky said as he blushed.

"Nah. Check your PANTS, dude." Frisky looked down to see his pants were completely missing. His hardon was simply warm enough to keep from noticing, but his legs certainly felt the breeze.

"Oh what the hell!?" Frisky snapped. Sans jerked his thumb over his shoulder. Behind them was a ghost; a short and curvy translucent woman went by, her skin and hair all sheet white. She had a black and white striped shirt with the sleeves longer than her arms, the shirt so stretched that her low-hanging breasts nearly fell out of her top. An mp3 player was clutched in one sleeved hand, seemingly oblivious to the world as she listened to the earbuds floating inside her head. Floating around her lower body's levitating legs was Frisk's pants.

"Gotta be careful around ghosts. They ain't bad, but they're clumsy like that with the phasing through things," Sans said.

"Sans! That's racist!" Papyrus blurted.

"Geez! I didn't know it was such a grave subject for you, bro."

"Another pun!? I will kick your boney little-" Frisky let the brothers squabble and pun as he ran after the ghost.

"Hey! That's my pants!" he shouted. A number of the lady monsters looked up and blushed at the sight of his manhood bouncing in the breeze, but it was more important to catch up to the specter. She didn't seem to hear him over her music as she suddenly turned and phase through a building. Frisky ducked between the two houses and waited on the opposite side, ready to grab her. Instead, she came out a few feet lower than he expected, halfway phased through the snowy ground. She only seemed to fully open her eyes once her mouth had gone completely around his dick.

The ghost stared up at him in surprise, and Frisky blushed as he watched her pale white tongue run over his cock right through her immaterial body. After a few teasing licks, she took out one of her earbuds. Frisky could hear some synth club beats coming from her earbuds accompanied by her quiet sucking. She reached a long-sleeved hand into the ground and pulled out Frisky's pants, holding them up in an unsure offering.

"Yea," Frisky confirmed with a nod. It was a strange scene, but seeing the cute goth ghost sucking his dick with his prized pants in hand filled him with determination. She held them out but he caught her wrist. "I mean... once you're done."

The ghost giggled, making her mouth vibrate around his shaft. "Thanks," she said in a clear, somewhat echoey voice. It sent a strange chill up Frisky's shaft and then his spine, making him shiver. It vibrated perfectly and ran her barely-tangible tongue around his dick, both speaking and licking him at once. "Don't think I've seen you around before." Frisky shuddered and rested a hand on her head. It stayed there for a moment before phasing through and leaning on the wall instead.

"Yea... I'm visiting," Frisky said breathlessly as she started to bob her head. Even properly sucking him off, the casual specter kept talking and giving him those intense pulses of pleasure.

"My name's Hipstaboo," she said, picking up her earbud and popping it back into her head. "This is fun, huh? I'm not used to people actually interacting with me."

"Why not? You're... uh, cute. And really really good at this," Frisky hissed, feeling his balls tense up as she giggled around her casual blowjob again.

"They just talk to me if I pass through them and take something by mistake. I mean, I did with you and all, but..." She held up his pants and hung it off a nearby tree branch. "You don't seem in a hurry to get them. So that's cool of you."

"Well maybe..." Frisky took her earbuds, popping them out from inside her head. She gasped and her white skin quickly blushed. "If you didn't have these in all the time."

"Sorry," she squeaked modestly, pulling her head back so her cool, wet mouth slid over his shaft from balls to tip. "It's my cousin's latest track. I listen to his stuff a lot. It's just kind of nice to shut out the world and..." She bobbed her head in and out again in a slow rhythm. "Just live to the rhythm, y'know?"

Frisky guessed that family was just as important down here as it was up there. Maybe especially so, given how small their community seemed to be... though maybe that was because he'd fucked his adoptive monster mom last night. "Sorry about that." He slid both earbuds back inside her head, and her eyes shut serenely. Hipsta moved her head to the rhythm he couldn't hear, but he felt some of it through her. Her humming throat and the pace of her sucking made him almost feel like he was listening, as if he was at some perverted private concert. He slid his hands down her loose top, groping and pulling out her big white breasts. As her pinched and pulled on her nipples, her latest penetrating moan made him twitch and cum inside her. He saw his semen float around inside her head for a moment before she gulped and it vanished down her chest and somewhere beneath her shirt.

"Yea..." Hipstaboo purred serenely. She slid herself off his shaft and licked her lips. "You are definitely not from around here. Nobody in Snowdin's got cum that hot and tasty. Is it weird that I know that?"

"A little," Frisky admitted as he pulled his pants back on. "But I think weird works down here. But... thanks for that. You were really good at it."

"It was fun," the ghost giggled. "And call it payback for the pants."

"Sure," Frisky laughed. "Shame I won't be staying long. I'm kind of on my way to the palace right now..." He sighed and looked back towards the main road. "And I bet the boneheads are still arguing. I should get back to them."

"Well here." Hipstaboo floated up from the ground. Tucking her tits away, she reached into her stomach and pulled out a pen. She took his hand and wrote out "Hips2015" across the palm.

"What's that?"

"That's my Soundcloud. You can PM me anytime. I'm usually on." She winked and floated back towards the road. "Tell your friends I said hey."

Frisky shook his head and looked at his palm before walking back. At least the blowjob had helped his legs warm up a little. Sure enough, the brothers were in the middle of the road. Sans was in a headlock but squirming too much for Papyrus to do much else to him as the other villagers stared. Some of the ladies blushed at the sight of Frisky returning, even with his pants back on this time.

"Hey, guys. I got the pants."

"What? Oh! Yes! You've regained your equipment! Well done!" Papyrus praised, letting go of his brother's neck. "We should be reaching the west side of town any minute. From there it's just a few caves over to the castle proper."

"Sounds good." Frisky shrugged and followed their lead until Papyrus cleared his throat.

"So... Frisky? What exactly was that back there?"

"What? The pants thief? That was Hipstaboo. She was pretty cool."

"No no. Not that. Your ah... wobbly bone. Under your pants."

"...are you talking about my dick right now?" Papyrus stared at him blankly. Frisky pointed where he meant, and the skeleton nodded. "Yes. That's my dick. My junk. My nuts. it's what hu... people have. Not skeletons, because you don't have squishy bits."

"Wow," Papyrus said, bracing a fist on his hip. "The things they come up with today. What does it do?"

"It's for sex. Like making babies."

"Barkin' up the wrong tree, my dude," Sans chuckled.

"Remember fucking? How humans fuck things?" Frisky pressed.

"Well... yes," Papyrus admitted. He somehow blushed, or maybe it was a trick of the light. "But I always assumed it was just a figure of speech. Like 'oh no, the humans are going to fuck over us all! They'll kill us by fucking us!" Frisky stared at him baffled before looking to Sans.

"Don't even bother," Sans laughed. "I have been trying to explain it for years."

"Okay, so..." Frisky chose his words carefully. "So where do baby skeletons come from?"

"Well, built, of course. I'll have you know that I happen to be made from my father's ribs."

"Part of mom's skull," Sans said, knocking on the side of his head. "But with dad's ribs, you might say that my big bro takes after our father's side."

"SANS, YOU INSUFFERABLE COMEDIC GENIUS! GET BACK HERE!" They chased each other around a while more before Frisky very calmly explained the birds and the bees to the towering skeleton.

It was a strangely beautiful but calm trip for a while. Another day or so of walking in the tunnels of snow and crystals and glowing fungus made it a bizarre spectacle. They passed through another small place called Temmie Village, where Sans bought some more food and told him not to talk to anybody. The horny bunch of short dog girls humped his leg and sniffed his crotch while chattering non-stop, but Frisky kept his word... he didn't talk, but he did help himself to a few quickies while Sans went shopping. Things were going smoothly, even as they passed through the caves flowing with lava or glacier-strewn streams. It only hit a real bump one his second evening of the trip.

Papyrus was tossing some logs on the fire when a chilly wind blew by. "Maybe we should get the tents up," Frisky offered, pulling his arms into his sleeves while the fire just warmed up.

"That's not a regular wind," Papyrus muttered, squinting his glowing eye sockets suspiciously. "That's a dramatic wind..." He suddenly shrieked and jumped as a dark figure suddenly landed in the middle of the camp. The campfire flared as a tall figure clad in obsidian armor. Sharp fin-like shapes ran along the shoulders and helmet, a visor covering half of its face. It was dark enough that all Frisky could see beneath the helmet was a single gleaming eye. A long and sharp spear was grasped in one armored hand.

"Oh! Thank goodness," Papyrus sighed, though Sans and Frisky didn't share his relief. "It's just you, captain. We were just looking for you, as a matter of fact. You see, this lost monster child is seeking-"

"Papyrus?" A low and gravely rasped out through the helmet, every bit as intimidating as their intruder looked.

"Y-yes, Captain Undyne? Nya ha?"

"What do you think you're doing with a human in your presence?"

"What? Oh! Don't be fooled, captain. From the corner of your eyes... well, eye... eye sockets... nya haha... I mean, clearly this is just a normal human-shaped monster!" Papyrus went over to Frisky while Sans stayed petrified on the spot. He clapped a hand on Frisky's shoulder. "I have shared pasta with this creature. I have seen many monsters go un-fucked in its presence. Clearly this is simply a monster, not a human, or the 'true monster' as we call them."

There was a sniffing noise from under the helmet as the figure remained in a crouch from its acrobatic drop. "Then why does it smell exactly like the stench of a human?"

Papyrus' eye lights blinked. "I... did not know you could smell humans."

"I never taught you that because you have no nose, Papyrus."

"So I see..." The skeleton nodded thoughtfully and rubbed his chin. "Though that would be impossible, because The Great..."

"Uh... Papyrus?" Frisky spoke up. "She... might be kind of right. I'm pretty much human."

"What?! Sans! Are you telling me she as a human all along?!"

"He. It's a dude, dude."

"What are you talking about? It has a penis and everything! Of course it's female!"

"Is that what you're worried about right now?!" Sans added frantically.

"You're right!!" Papyrus shrieked girlishly. "We've been harboring a human! We're traitors to our kind! I'm best friends with a human!! What have I DONE!?"

"Ohhh man. We are so dead, dude! King Asgore will tear us to pieces and play us like a xylophone!"

"That's ridiculous and probably true!!"

Captain Undyne stood up and swept her spear, whipping up the flames that cast their light along her dark armor. "That's enough! You two will face King Asgore for your incompetence. As will the intruder. Take them away." Undyne raised a hand and snapped her fingers. At least she tried to. Her gauntleted fingers clanked together. Everyone paused until she slid off her glove, showing a slick set of blue fingers. This time the fingers snapped normally and four armored monstergirls stepped out of the shadows with swords in hand.

"Hey! Whoa!" Sans urged with his hands up defensively. "Let's not go nuts. We're fellow guards, right? I shoveled your driveway that one time. Remember that, Clawthy?" The spine-covered woman scowled back at him.

"I can't believe this! I didn't mean to help a human! I didn't know they'd be so adorable! I thought they'd be a lot more rapey! We bonded over a spaghetti dinner! I can't handle this right now!"

"I'm with you, bud. I'm too pretty for monsterjail!" The skeletons made a break for it but the armored women were quick to cut them off. A large rock-skinned woman reached for Papyrus, but Frisky suddenly dove in the way. He grabbed her by the belt of her armored skirt and pulled it down, showing her curvy, rocky ass to the onlookers.

"Hey! Careful!" the golem girl squealed, dropping her sword to cover her privates. A blonde catgirl caught herself staring, so Frisky jumped up and shoved his hands down her breastplate and started groping.

"What are you doing!? Eeee!" she yelped as Frisky pinched her nipples and dropped back to the ground as she backed off.

"Run already, you boneheads!" Frisky shouted. The look of shock and sympathy on the skeletons' faces as they stared at him filled him with determination. He ran around past the girl who looked like she was made of slime, smacking her on the ass so that even her armored rear jiggled. The captain started marching slowly after him when there was a comical clunking noise. The newly arrived guards looked up at the bone that was still flying in mid-air before landing in the snow. Papyrus pulled out another one of his ribs, chucking it like a throwing knife that bounced harmlessly off the rock girl's helmet.

"Captain, you had always taught me that spaghetti is a stronger bond than blood! I shall not betray these pasta bonds!" Papyrus shouted. He glanced around at the outnumbering guards and suddenly whooped, sprinting into the woods with Sans right on his heels.

"Don't worry 'bout us! You got this, bro!" the short skeleton shouted back to Frisky as the rest of the guards gave chase. "You just do your thing and kick some tailbone!"

"Less punning, more running, SANS!"

With the others gone, that left Frisky and the ominous captain standing near the fire. The heavily armored woman have a dismissive snort that echoed under her helmet. "You humans are disgusting. A panty shot on my own soldier and grabbing her oppai? Pathetic. Now they're never going to get married."

Frisky's tense stance loosened. "Wait, their what? Is that Japanese?"

"What's Japanese?" the raspy voice answered.

"It's a language. Oppai is Japanese for tits."

"Such language," the captain scoffed. "It is the duty of all members of the royal guard to take vows of chastity to prevent such filthy talk. We are shown the depravity that humans are capable of and carry that burden with us to keep up vigilant."

Frisky sized her up quietly. "What burden? What depravity?"

"Does THIS look familiar?" Undyne reached into her chestplate and pulled out a pendant hanging around her neck. It was, in fact, a DVD box of "My Busty Teacher Hates My Tentacle Monster Volume 2" on a thick chain. Silence filled the air, letting even the distant screams and hoots of the fleeing skeletons be heard from the far of tunnels.

"What? What's with that look?" the knight rasped.

"It's uh... nothing."

"What? I know that look. What did I do?"

Frisky heard the grim voice cracking a bit. "Oh! Nothing. I just... I wondered what you were doing wearing imported cartoons around your neck."

"...what?"

"Cartoons. Pictures people draw because they're made up stories."

Undyne was frozen on the spot. She drew her spear and thrust it forward, stopping just short of Frisky's face. "Take off your shirt."

"Why?" Frisky asked, steeling himself and folding his arms. The monsters didn't seem to know what to do in the face of someone who didn't go by their rules.

"I want to see your tentacles."

Aha. "Okay. Fine. But you take off yours too. Fair?"

"...agreed. Now... shirt." Frisky tugged off his shirt, shivering a bit before he stepped closer to the fire and tossed his shirt on one of the dry logs they used for seats. He turned around, warming himself while showing no signs of tentacles.

"There. Your turn." Undyne gave a small, unsettled grunt before sticking her spear in the ground. Frisky realized he might be able to grab and jab her with it before she could react, but that just felt cruel. She worked for a while unbuckling clasps and loosening straps. Frisky even stepped up to help get off the harder pieces before it fell to the ground. Beneath it all, Undyne was actually quite skinny. She had blue skin, gills, and a few large, orange fangs that filled her mouth like a humanoid piranha. Fin-like ears lined her head and framed her long red ponytail. An eyepatch covered a portion of her face, and above her armored leggings she only wore a sleeveless shirt. That soon came off as well, showing that she wasn't just thin. Undyne was ripped. She had ridiculously defined abs and her arms bulged with muscle when she bent them in the right way. Her breasts were nowhere near as big as Toriel or even Hipstaboo, but they were dense and perky compared to the usual softness.

"There. You happy?" Undyne asked with a fanged sneer. The oddly fishy woman was not what Frisky had been expecting, but then again, nothing had been what he expected since he fell down that hole. The trick seemed to be not to letting anyone realize that.

"Actually, yes. You're way hotter than any captain of the guard that I've ever seen."

Undyne actually laughed, putting a hand on her hip rather than picking up her spear. "Good eye, brat. You must be able to see my burning passion to become the very best like no one ever was."

"That's pokemon."

"What?"

"You're just quoting pokemon now. Is that all you do all day? Just watch anime and hentai? ...and lots of squats?"

"Of course not! How dare you!?" Undyne squared her shoulders, suddenly reminding him of just how tall and fit she was. "Are you insulting the training methods of the captain of the royal guard?"

"No. I was just thinking of offering a challenge." Undyne raised the eyebrow over her covered eye. Frisky squared his shoulders, though much less impressively. "I'm willing to bet my freedom on a test of willpower and endurance. My burning spirit and determination against yours." Undyne's eyes were simply wide open now.

"Now you're speaking my language, human scum. So what's your game?"

"An old human specialty; a sex duel. I bet I can hold out longer inside of you than you can stand."

"So that's your move? Desperate to rob a royal guard of her chastity before your execution?"

"Love it when you talk dirty," Frisky said with a grin. "But if I win, you take me to the palace. And let Sans and Papyrus go unpunished. I lose, you bring me to the king yourself and I go quietly. It sounds pretty fair to me."

"You got a deal, pipsqueak. Just get ready to keep your end of the bargain." She offered a firm blue handshake, and the sight of Undyne's flexing pecs and her delicious and sweaty abs filled Frisky with determination.

Undyne lead Frisky to a nearby scout post where she kicked down the door (not because it was locked, but just because it looked cool). It was a simple cabin much like the one belonging to Papyrus, but a bit larger and cleaner. A few beds were set in side rooms, and Undyne kicked that door in too before stripping out of her armored leggings. Her tight ass, hairless pussy and powerful thighs got Frisky to blush, and he hoped he hadn't dug his own sexy grave.

"So the first to have one of these orgasms is the loser then?" Undyne asked a she laid back on the bed. She folded her arms casually behind her head, showing off her muscular arms and chest even further. "So how do you know when that happens?"

"Trust me. You'll know," Frisky said. He was glad this house was kept so warm, letting him undress and still stay comfortable. It was better than doing it in the snow like Undyne had offered first. She was clearly a lot wilder than Toriel, despite her talk of anime and chastity. Undyne eyed up his crotch with a brief wavering of her confidence as he climbed up onto the bed and moved between her thighs.

"So... no tentacles, huh?" Undyne asked.

"Nope. Legs and a weiner."

"I'm a little disappointed," she admitted with a scoff. "I mean, if that's all you have, little human, I don't like your oooaaaaaHHHDS!"

The fishy monster visible tensed, her eye widening and fanged mouth dropping open as Frisky slid his cock inside her. She was a tighter fit than Toriel to be sure, her already taut pussy clenching around him along with every other muscle in her body at the shocking feeling of her first penetration. "You doing alright there, captain?" Frisky asked, giving her a confident smile.

"YES!" she snapped back a bit too eagerly. Her blue cheeks did a terrible job at hiding her blush. "I'm fine! I just... wasn't expecting that. It's sort of... hard and soft all at once. Is that normal?"

"I think so. I'm a little new at this too," Frisky admitted. He started to slowly move in and out, pacing himself for their contest. Even so, Undyne moaned and turning her head to rest her cheek on the pillow, her good eye fluttering. She was starting to sweat again, her skin shining and looking more slick than before. Her pussy reacted in the same manner, her pulsing vagina starting to ooze with a warm fluid that was helping with his thrusts.

"You won't break me so easily, human," Undyne grumbled, but she bit her lip and shivered again. "But you're damn good at this kind of a duel."

"It's not usually a competition. It's supposed to be to feel good. And making babies, sometimes, but I'm not sure how that works with monsters."

"Tch. Not even laying eggs. That's how weird your kind is..."

"Wow, what kind of hentai were you watching?"

"Oh shut up! I'm not licked yet!"

"Oh, good idea." Frisky leaned into her, pressing his cock all the way in as he took one of her hard nipples into her mouth. Undyne let out a sharp hissing noise as he kissed and nibbled on it, digging her heels into the mattress.

"Fuck! Your human torture techniques is advanced far beyond ours!" Undyne grunted, sweating and breathing heavily. It made her strong hips and belly push up against him, bouncing him slowly every now and then.

"I told you, it's not torture. It's supposed to be fun. I think you monsters have a lot of weird information coming your way." Frisky pinched and tugged on both of her nipples. He loved how it made the muscular warrior woman squeal and arch her back so hard that she lifted him off the bed for several seconds.

"Holy shit! What are you even doing down there?!" Undyne gasped, her eye fluttering rapidly. "It can't always feel this good, right?"

"Just kind of poking around," Frisky said with a confident smile. "I guess without all that armor and muscles, you're not as tough as you think."

"I'll keep your balls as a plaything, human," she threatened, but her voice was feeble and her body twitched around him. As exciting as it was to be winning the contest pretty single handedly, he couldn't help but smile watching Undyne experience what was clearly her first time getting this aroused. He thrust a few more times before his member bumped against her clit, warm and firm near the peak of of her slit. Her fanged mouth gave a needy cry as she drooled over the pillow, gripping the headboard as she looked up at him with a mix of awe, fear and admiration.

"No... noooo I can't love. I'm Undyne the Undying," she moaned sheepishly, her fangs nibbling her lip. She refused to run away, but her body squirmed as if fighting the urge to lean into it or admit defeat.

"Good thing I'm not trying to kill you then," Frisky said as he leaned in and kissed her on the lips. They were soft and smooth, not nearly as slimy as he'd expected of the muscular fish girl. She grunted lowly and leaned into the kiss, her hips pumping like a piston. Her felt her abs slapping against his stomach in her efforts to finish herself off, but Frisk humped back to help her with her lusty mission. Undyne finally let out a long and passionate scream that shook the walls. Her fists clenched so hard that she tore the headboard off the bed and flung it across the room. Her muscles bulged against Frisky as he clung to her for dear life, her pussy clenching around his cock while her mighty hips pumped in jerky thrusts.

"Shit... holy shit," Undyne gasped. Her abs and thighs finally unclenched as he crumpled to the bed. Her hair was a sweaty mess and her eyepatch was left off-center, showing her perfectly normal other eye behind it. "That's a fine spear you have there, soldier."

"I'm not a soldier. I'm just some guy," Frisky said with a smile. He was breathing heavily himself, but he was content to have won for now and saved his own life. "Doesn't take a soldier to win over a new friend, right?"

Undyne blushed harder, running her strong hands up the smaller human's slim arms. "I guess so... but wow... that's what human sex is like. I never would have guessed."

"Was it so bad?"

"Fuck no," Undyne laughed wearily. "It was a blast. I could get used to training like that more often."

"So maybe some of the stuff you knew about humans isn't right after all."

Undyne chewed on that quietly for a moment before she kissed Frisk again. "Maybe. But I guess if nothing else, you're not a bunch of tentacle monsters who shoot toxic sperm. But I guess you're free to go, huh?"

"I mean, I'd be glad to have you come along. You did say you could take me to the castle," Frisky added. "And besides, you're pretty fun once you get past the spikey armor and the evil voice."

Undyne laughed at him and shook her head. "I just came like a beast and you're saying I'M fun," she chuckled. "C'mere, wiseguy." She suddenly sat up, pushing Frisky onto his back. "Time to show you what a real monster workout is like." She braced her arms by the surprised Frisky's head, her perky tits hanging just above his face as she grinned at him like a shark. She eased her hips onto his, groaning as she took his cock back inside her. She stiffened her legs and started performing pushups, working her wiry but powerful muscles so that her breasts pushed lightly against his face before bobbing back up again. There they bounced and slid back down, all while her pussy rode his shaft with perfect rhythm.

"I could... wow... get used to this too," Frisky admitted, blushing as he started to squrm. He was so glad that Undyne was going to finish him off, since despite his confidence he had built himself up a lot in their showdown.

"Right? I'm starting to see why being on top is such a big deal in these human duels," Undyne grinned. She dropped down on her pushups, rubbing her sweaty tits in his face while her thighs clenched, squeezing her pussy around him like a muscle. With outstanding control and strength, she pushed herself back up at an agonizingly slow pace. Her sweat dripped from her nipples and abs over his body as she slowly peeled her pussy off of Frisky's dick, leaving him grunting and squirming. She had just popped off of his head when her cum shot across her abs and pussy. He shook and moaned before letting himself fall flat on the bed, the laughing Undyne casually dropping on top of him and kissing his face.

"Gotcha in the rematch," she giggled, peppering him with a few more kisses. "But I'll keep my part of the deal. Even if I'd won, I can see your kind isn't so bad now." Frisky sighed and ruffled her warm red hair, letting the tall and fit fishgirl cuddle up to him tightly.

"Same. Let's just catch our breath a little before we go hunting down the boys. But you're right... I could get used to working out like this. Want to keep training when I get back from the other side of the castle?"

"Sounds great," Undyne sighed. "If you can make it."

“I will,” Frisky said with all the determination he could muster. “Just watch me.”

They heard a thump from outside in the main room, followed by some hurried bootsteps.

"Captain Undyne! As much as I respect your training in both the arts of combat and cooking, I must demand you release my best friend Frisky at once! I warn you! I am armed and prepared to fight in her-!"

"His, man."

"HIS honor! So says the great Papyrus!"

Frisky sighed and stood up. "I'll handle this. Just get dressed." He pulled on his pants and stepped out to see the brothers there, Papyrus holding a skeletal arm in his hands like a club. Sans was just sort of hanging back by the door, as if not quite ready to run away again.

"Hey, guys. I worked it out. Thanks for the rescue though."

"Oh! Well think nothing of it, my human friend! Never thought I’d hear myself say that… nyahaha..."

"Hey, bro... look, I know you said you wanted to be armed and all, but couldn't ya have used your own arm?"

"Don't be ridiculous, Sans. If my arm was pulled off, what would I have carried it around with?"

"You've got two of them, bone brain."

The four of them spent the night in the cabin, the brothers taking one room and Frisky and Undyne taking another. They fooled around some more, but they were eventually interrupted by an upbeat Japanese pop song. "Shit. I should take this," Undyne grunted, removing herself from her seat on Frisky's face. She grabbed an old flip phone (which had been clearly modded with cool little shark fins and some runes scratched into the outside) from the dresser and started typing.

"Who's that?" Frisky asked, sitting up and wiping her cum from his mouth. "You're not talking to the king, are you?"

"Nah. It's my girl. She works down in the labs. She keeps saying there's some kind of energy kicking up on her scanners."

"Like... bad energy?"

"Dunno. Says it could go either way. For some reason it's been spiking the last couple of days." She picked up her eyepatch and slid it back on as she glanced at Frisky. "It was what made me decide to go looking for humans. It always seems to jump when your kind shows up. She's been calling it Lov."

"...wait, you guys can scan love?"

"Ha! No. Don't be stupid. It's one of those abbreviations. She thinks it's a gauge of potential emotion in the underground. Stands for Lust or Violence." Undyne smirked at her latest partner. "Guess you humans really bring it out of us monsters. Funny how that works." Frisky let that soak in as he went to bed, letting her stay up texting before she curled up with him. The next morning, Frisky was glad to have Undyne make them actual breakfast instead of more "breakfast spaghetti" before they headed out. It was another day or so until they reached the castle, but the going was easier with his trio of friends to talk to along the way. Undyne's authority got them past a few, and there was a friendly spider woman running a bake sale. It turned out that she was glad to serve them and found a way to keep her extra hands busy with Frisky. They reached the base of the mountain that held the castle at its peak, but Undyne didn't want to raise any alarms. Fortunately, she knew a pair of dumpster-diving shopkeepers (Bratty and Catty, a busty pair of a cat and crocodile girl) who sold her discarded anime they found from human garbage. The two were glad to show them through a secret entrance, so long as Frisky gave them both a quick sample of human cum.

At last, there was the castle. It was huge, pearl white, and ancient, without so much as a single guard in sight. "You can get to the exit of the underground through the castle. Right through the main hall then make a right," Undyne explained. "Shouldn't be any security since I took the whole squad out with me to go hunting. Just the king, and he's probably up sulking in his throne room. I think he built the castle way back when to keep anyone from trying to leave or get inside."

Frisky shrugged. "So you're not coming with me."

"I would, but I'm not so great at stealth." Undyne paused and suddenly roundhouse kicked a nearby tree, sending it crashing to the ground. "I get antsy if I'm quiet for too long that's not a dramatic pause."

"I suppose my stealth tactics could use some work as well," Papyrus sighed. "And Sans is far too slow and fat to be of much use."

"What fat? I'm just big boned!" Sans winked his socket at Frisky as he grinned. "But he's right. You got this. Just walk the path, do what you gotta do, and hurry on back to us, aright? You've done some good shit down here, so you'd disappoint a lot of pretty faces if you didn't come back. You can do this."

"We'll await you at home with more spaghetti than you can eat," Papyrus promised.

"Or just burgers. Maybe burgers," Undyne laughed.

Frisky smiled and nodded. The smiling faces of his expectant friends filled him with determination. With a deep breath he stepped into the castle's open gates as they all started to walk home. The place was vast and empty. No guards, no artifacts, no servants or maids. He was kind of hoping for some maids... but Undyne was right. The place was truly empty. As he neared the end of the main hall and its soft, dusty rug, there was a dull sound of metal scraping on stone.

"So... you've finally come for me," said a voice deeper than any he'd ever heard. A shadow appeared from around the left end of the hall, and Frisky gulped as the shadow kept getting bigger and bigger. Eventually a 9-foot tall monster with a thick beard stepped from around the corner. He held a massive spear and was clad in ancient gold armor, two thick horns growing from his skull past some floppy ears. Grayish white fur covered his body, and he looked nearly as broad as he was tall.

"I'm not coming for anythinng," Frisky warned, stepping back from the towering warrior king. "I'm just looking for the way out."

"I have ears, boy," the voice growled, raising his spear. "I still have some monsters loyal to me and our cause. I'll not see you tear my entire life to pieces."

Frisky took a deep breath. "I get that you don't like humans because of the war. I heard all about that. That's no reason to tell everyone that we're poisonous tentacle monsters trying to kill everyone. We've honestly forgot that monsters exist. There's a lot of people who would love to meet you guys."

"You think this is about the war?" the king scoffed. Asgore stomped towards him, shaking the stone floor with his massive steps. "Then it looks like you will die a confused little thief. I'll be glad to tell my kingdom that another heartless human was destroyed." Frisky was shocked to see him actually lunge at him and thrust with his spear. He threw himself to one side, letting the king's spearhead dig deep into the stone wall behind him. He ran through the halls as Asgore swung wildly, thankfully stronger than he was fast. It blew debris from the walls and floors every time he slashed, telling Frisky that one good hit would blow him to pieces.

"I didn't do anything!" Frisky shouted as he fled. He clearly wasn't going to fuck his way out of this one. "I made friends! I ate spaghetti! I tolerated the Temmies! What did I do wrong!"

"You slept with my wife, you brainless little demon!!"

"Oh... yea, I probably did that. I mean statistically speaking, I might have slept with your wife and your mom... did you have any daughters?" Asgore snarled, baring thick fangs as he swung hard enough to leave a crater in the floor when Frisky leapt back. "Okay! You know what? Nevermind!" He darted past the bigger monster, but Asgore's spear handle swept and suddenly tripped him up. Frisky hit the hard stone before the giant king kicked him in the stomach, sending his winded body slamming into the nearest castle wall.

"Your insatiable lust and arrogance won't save you now, human," Asgore growled as he leveled his spear. "You cannot flee and you cannot talk your way out of this. Now fight me."

Frisky reached into his pocket and dug around. Asgore smirked, expecting some dagger or wand by his readying stance. Instead, Frisky pulled out a dusty little tin whistle. Asgore looked confused as Frisky raised it and with a deep breath that hurt his ribs, he blew into it with a crooked, warbling tweet. "Was that all?" Asgore asked. "Trying to hail human reinforcements from this far underground? You've wasted both of our time, and you'll find that your time is very, very limited..."

Clunk. Asgore looked confused for a moment before he looked down the hall. A skeleton in red armor stood there, holding up his hand. His jaw bone came whirling through the air, coming back to him like a boomerang before he popped it back into place. The king looked down at the small bone at his feet.

"Sorry about that, best human friend Frisky!" Papyrus said brightly. "I heard the human whistle and you know... instincts kicked in so I came running." He turned back to the king and nodded. "Afternoon, your highness. Nyahaha."

Asgore furrowed his brow. "I remember you... one of Undyne's trainees. The would-be human hunter." The king's muzzle smirked. "Then I think I have just the way to promote you. As a final test, execute this human for me."

"Well... yes... nyaha... about that, your highness. Did you know that humans are actually quite non-toxic? I, for example, have spent countless nights beside this human and have neither caught any diseases nor been fucked in any way. Perhaps there is fair cause to conduct some research into whether humans have evolved into some tolerable, even FRIENDLY stage of NYAAA!"

Asgore turned and whipped his spear hard enough that a shockwave blasted through the hall, tearing up the stone and carpet as Papyrus leapt out of the way. "More traitors to human sympathy," Asgore sneered. While he was distracted, Frisky pulled out his cellphone. It didn't have much battery and lousy service down here, but he caught enough of a signal to send out a few texts. Once that was out, he hurriedly went to Soundcloud and found the username Hips2015.

Asgore turned to swing as Frisky again, but there was another clunk as one of Papyrus' fingerbones bounced off his head. He snarled and glared at him again. "Your highness! I shall have you know that a skeleton’s body is made of more than 200 bones, and I’m willing to break everyone one of them for my spaghetti friends!”

"You are another worthless idiot," Asgore snarled. He raised his spear for another shockwave, but suddenly jerked to a stop. He looked behind him to see Sans standing there, grinning and holding the tip of his spear between two fingers. Asgore grunted and snarled, pulling harder and harder, but Sans didn't budge.

"Yo, your highness. Maybe lay off my big brother a little." He suddenly twisted around and whipped his arm, slamming the king into the floor. Frisky blinked in surprise at the sight.

"Sans, could you always do that?"

"Yea, but you know me. I ain't usually got the guts for this kinda thing."

"Sans that's... well said. I'm glad to fight beside you." Papyrus put up his dukes in a comical stance as he stepped up by his brother. Asgore pulled himself up to his intimidating height again, scowling as he lunged at the two of them. He suddenly feinted away, slashing sideways and sending his blade towards Frisky's head. The human felt a cold run through him, but he smiled. It felt familiar. Suddenly Hipstaboo's see-through form wrapped around him, pulling him down into the floor and letting the weapon harmlessly smash through the walls above them. They popped back out of the ground on the other side of the hall as the ghost dusted him off.

"Thanks for the save," Frisky said.

"No problem. It's always nice to have you inside me again," she giggled.

"You insatiable devil," Asgore bellowed, growing more riled as more of Frisky's allies arrived. He lashed out again but Undyne suddenly zipped in front of him and threw up her own spear, blocking his strike in a deadlock.

"Sir, we won't stand for any more of your witch hunts!" she snapped. She pulled the hentai DVD off from around her neck and threw it to the floor. "I dueled this human in bed and found him nothing but satisfactory in every way! He dueled my brains out until I was begging for more! And if you-"

Asgore simply roared. He was beyond furious as he came out swinging wildly at everyone in sight. The skeletons jumped on his arms, clinging to them to slow him down while Undyne tackled him around the waist. Hipstaboo wrapped around his foot and pulled his leg into the ground, and that only slowed him down. "Hi, I'm Temmie!" chirped a voice as a shortstack dog monster pounced out from one of the halls. “Hi, I’m Temmie! Hi! I’m Temmie too! I’m Tem! I’m Tammy! Hi, Temmie!” The Temmies poured in with their echoed battlecry and started humping his other leg, which Frisky couldn't tell if they were trying to help or not... but the spiders wrapping his leg up in webbing were definitely friends of the handsy Muffet.

"That is enough!" a stern but motherly voice snapped. Everyone froze as Toriel came marching in from the main entrance. She scowled at the king, and Frisky suddenly had to recognize the resemblance between the two horned monsterfolk. "Dear, you have to let this go."

"So you're the wife," Frisky noted quietly.

"Divorced," she added, folding her arms over her big breasts. "And he hasn't gotten over it and admitted it to himself."

"I won't have the humans take you from me," Asgore thundered, still struggling against everyone else.

"Oh yes you will!" Toriel snapped. "Because admit it! This is why I left you, and why you are so obsessed with this!"

Asgore's bulging muscles suddenly went slack. He crumbled to his knees as everyone slowly backed away. "You're right... this is all me..." He blushed through his pale fur. "I've always had a thing for getting cucked. Nothing else was quite as exciting. When I started to hear about how verile humans could be... it drove me mad. Then to hear that one had taken my wife... it was just so arousing."

"Cool," Frisky said, dusting himself off. "That's super creepy. Can I go now? I just want to make sure my world's okay before I come back here and keep satisfying your ex-wife."

"I suppose," Asgore sighed. "The tunnel's right down that-"

"Nooooo..." a raspy voice hissed. Everyone looked back up to see at the end of the hall was... a training dummy. The scarecrow thing from Toriel's basement with the fake stuffed boobs and the little mean face painted on it stood there, seemingly untouched by anyone.

"That's really spooky," said Hipstaboo. "Right? Not just me?"

"Not just you," Undyne agreed. She picked up her spear again, but another anime theme song came from her pocket. She pulled it out and checked her texts with a fanged frown. "Alphys says that those LOV ratings are off the charts right now. Some major imbalance between the love and violence just kicked in."

"My bad," Asgore admitted. "When that's kind of your kink, I suppose..."

"Vengeaaaaance..." the training doll hissed. Its stuffed head opened up into a gaping, fanged mouth where the painted pattern was. The ground shook as roots and vines grew from the ground, stretching into a giant pillar that smashed through the floor and ceiling of the castle and started ripping it apart. "FUCK! KILL! DESTROY ALL HUMANS! FUCK ALL MONSTERS!" it ranted in its raspy but booming voice.

"I can safely say that I had no idea this was coming," Frisky said calmly before jumping out of the way of a falling ceiling tile.

"You've taken the fight out of some of the biggest human haters in the whole underground," Undyne explained, reading over her texts quickly. "The emotional imbalance across the world is so short on hatred that the force itself is lashing out to try and preserve itself. It'll burn out eventually, but..."

"YOU!" The hissing dummy, now several stories tall as it rode on its stack of stone, earth and plants. It pointed one of its massive vines at Frisky. "You seek to break the balance! The bittersweet love-hate of the monsters! I shall not allow it! You may have touched me once before, but you will find that you cannot satisfy me! I have no vagina! I am but straw and cloth! You CANNOT HAVE SEX WITh ME!" it cackled madly.

Frisky stared up at the unfuckable dummy. Faced with the challenge, he was filled with determination. "That's where you're wrong!!" he shouted defiantly. "I can fuck anything! Every monstergirl deserve some lovin'!"

"Fuck yea!" Undyne laughed.

"Agreed," Toriel nodded.

"I'm Temmie!" Temmie agreed happily.

"Can you guys get me up there where my dick can reach?" Frisky asked. Toriel promptly picked him up, cradling him in her warm embrace.

"I've got you, sweetie." With a burst of strength, she started leaping up and bounding from branch to root, scaling it with one strong hand. One of the chunks of stone formed into a fist and launched at them, but Undyne pounced in the way and sliced it in half with her spear.

"What did I tell you, kid?" she laughed madly, slicing away at further vines and limbs. "Tentacle monsters! Totally real!"

"You're right!" Frisky laughed back. "You two! Can you get us some cover fire?!"

"Right away, besty!" Papyrus shouted. "Looks like it's time to show my ultimate technique!" Papyrus started to pinwheel his arms around, building up speed before he started grabbing and flinging bones at ridiculous speed, peppering holes into the towering monster. "Rattling Gunnnnn go! Nyahahahahaha!"

"That's pretty humerus, bro. But I ain't letting you show me up." Sans chuckled. He braced his legs far apart and pulled back his hands, thrusting them forward as a massive skull-shaped beam of frost-colored energy punched a hole the size of a truck in the monstrosity.

"Seriously, Sans! What the fuck!?" Frisky shouted down at him.

"What? You never asked!" Sans grinned, winking his socket back at him. The Temmies started scrambling up the earthy body, ripping out pieces here and there. They weren't doing much damage, but the hyper little nuisances did an amazing job in keeping the swinging limbs busy. Muffet's spiders were quick to wrap up those limbs and tie them together while Hipstaboo phased in and out of its central body, letting its flailing tendrils smash itself to pieces rather than her. Several robots flew around the tower of limbs. They folded together into a fabulous-looking purple robot, a tv-screen mounted on her breasts. Text ran across reading "Alphys says hi" before it kicked a large vine tentacle to pieces. Asgore hurled his bulk into the base of the twisted thing, causing it to stumble and drop the last few yards so Toriel could make the last leap and give Frisky one last push. He landed on the top of the stack of debris, face to face with the somewhat torn and tattered training dummy.

Frisky rushed towards the crude and twisted dummy and tackled her, pinning her to the top of the writhing pillar of debris. Its stuffed head tore open to laugh at him with its sharp-fanged hole. "All that for nothing! For all the lust you've brought into the world of monsters, I shall bring that much wrath! Your human penis shall not overpower me! I am immune! I haven't the pussy for it and you haven't the balls! Mwahaha!"

"It's not just about dicks!" Frisky insisted, grabbing the cottony orbs that made up its breasts. He squeezed and kneaded them as the mad dummy's animated limbs swung at anything below, but its simple stick "leg" could only wriggle in place. The dummy grunted and squirmed as its broomstick arms started to shove at Frisky. He was at least able to overpower its clumsy arms, as its core body seemed to still be just that of a dummy. He wouldn't have guessed he'd be having sex with monsters when he fell down that deep hole, but he absolutely wouldn't have imagined he's be on top of a giant animated pillar dry humping a training dummy to save their world.

The dummy thrashed in its poorly articulated state, but he found that not all of its reactions were repellent. It started to moan as he kept playing with its stuffed tits, groping and slapping them roughly to keep its attention. He could faintly hear the rumbling of its giant limbs at work, but they were slowing down the more distracted it was.

"Stop this! Your human sexuality is pathetic! You cannot beat me!" the dummy insisted as blush went across its plain silk face.

"I don't have to beat you. I just need to show you that love can be sex, and love is stronger than... I don't know, whatever you are. Magic? Hate? I wasn't super clear on that part. But I'll fuck you for the sake of my friends! So take this!" Frisky climbed up higher on the monstrous doll. Its sticks for arms suddenly grew into spindly clawed limbs, scratching and grabbing at his body. Frisky pressed on and let leave small cuts along his arms until one of its hands caught the waistband of his pants. He slid right out of them as he landed on its face, his balls pushing against its growling mouth.

"And this!" Frisky grabbed its head, stretching out the strange tear that was its mouth and stuffing his cock inside. He kept one hand on its doodled face so that it couldn't fully bite down, but he flinched as its fangs still scraped as his erection. He still pushed into its mouth, smearing his precum inside its soft and silky insides while his other hand groped around its chest. The limbs fumbled as it mumbled and moaned, pinned by Frisky's cock in its mouth. He could feel it start to mumble and moan right as he rubbed over its fake breast, just to feel a hard nipple that wasn't there before. If it could grow arms and a mouth, he supposed it could grow whatever it felt like it needed. It was progress!

"Well as long as you're all cloth and stuffing anyway..." Frisky grunted. He pulled off his shirt and quickly balled it up, stuffing it into the fraying fabric that was the odd entity's skin. The dummy gasped as he arranged it to outline so that her breasts were even bigger when padded by his shirt. He gave them a testing pinch at her newly formed nipple, and the possessed doll let out a feminine cry as her mouth closed around his cock.

"Sex wins over hate, you overstuffed nutjob!" Frisky laughed, smacking one of her breasts so that it bounced into the other and wobbled back and forth. "And speaking of which!" Frisky turned around, planting his ass over her face and more importantly his balls into her mouth. The thrashing doll moaned in two wailing voices, half in protest and the other half needy. She stills sucked on his smothering nuts attentively while Frisky braced his hands on her even larger chest and leaned in to bury his face at the base of its torso. There was only its wooden platform below that, but as he started to lick the patch of fabric, her vibrating moans became louder and more intense. Frisky grunted and winced as he couldn't help but cum, squirting over the cotton-filled tits as her mouth teased his balls.

"Not done yet," he insisted wearily, keeping his head from spinning from the orgasm. He went back to work with his tongue, keeping the groin-like area moist until the dummy suddenly shuddered. "There!" he declared, reaching a hand down and grabbing the spot. The fabric pushed inward, bending to the pressure of his fingers until it dipped inside, turning into an actual pussy on the stuffed creature. He even felt a warm, wet clit as his little fingers probed deeper. Frisky finally pulled his balls from her mouth as the animated creature gasped.

"Nooo! It can't be! Nobody can be this horny for monsters!!" the dummy moaned.

"Watch me, you human-thirsty slut!" He scrambled around to the proper position and thrust deep into the wet and newly formed pussy. The dummy howled in pleasure, the entire pillar shaking as his hard and weary cock hammered her clit. The second thrust gave a clap like thunder as her voice cracked and wavered, several tears appearing along its sewn together skin. Its doodled eyes went wide as it shook its head, staring at Frisky before he gave a finishing thrust. The dummy wailed orgasmically, thrusting its stuffed hips as a wave of warm cotton spilled out over Frisky's cock. It started to deflate as its filling left its body, and the pillar crumbled away beneath it. His sex conquering its rage, the doodles eyes fluttered as they both fell from the towering height.

"I gotcha, dollface" Frisky said, hugging the barely-stuffed dummy to him. Its flimsy scarecrow arms wrapped around him, unsure what else to do as they fell. His friends bound out of the way of the falling debris, but when Frisky landed, he felt an absorbing and familiar softness.

"And I've got you," Torial assured, kissing him on the lips. "We really need to get you to stop falling from things."

"Not if I keep landing here, I won't," Frisky said, burying his face into her mother's cleavage. He set the dummy down, letting it regain its balance on its wooden stand. It finally popped apart, turning into a pair of legs to help it stabilize.

"What are you going to do with me?" it asked, its voice suddenly small and meek.

"I dunno. What did you want to do? Still trying to kill all whatevers?"

It looked around at the rubble that was strewn about. Nobody seeemed to be particularly hurt, apart from a couple of Temmies clumsily pulling another one out from halfway under a plank of wood. "No, I think I'm tired of that," the dummy replied. "I'd just like to settle down somewhere, I think."

"Why not here?" Asgore stepped up and slapped a hand on its stuffed shoulder. "The castle isn't as big and grand as it used to be now that it's got some holes in it, but it's about as good as I deserve after all this. Plus you'd be like my daughter! And if this young man's had sex with both my daughter and my wife, imagine how arousing that would be."

"You're a freak, your highness," Frisky said with a smile. "Don't change. Except the killing me part. Keep that part changed."

"Sans! Sans, I can't feel my legs!" Papyrus whined somewhere nearby.

"Here you go. I found it over there."

"Nyahaha! Perfect! And it still fits like a glove."

"More like a boot. Heh heh."

"Would you jackasses start cleaning up already!" Undyne snapped, kicking at the brothers until they started lugging hunks of wall and wood out of the way. The assorted monsters started working on the rest while Frisky climbed out of Toriel's arms, looking off over the mountains. He saw lots of little lights, whether from campfires, streetlights. torches or glowing fungus that illuminated the various villages and towns. Some he'd seen and some he hadn't yet. He imagined they all had to have seen the damage done to the castle, and come asking questions.

"I'll let you guys sort this out for now," he finally decided. "You can break the news that there's a human coming back. Maybe more, depending on how people react when I tell them where I'm going."

"It's still hard to imagine any humans taking as much an interest in monstergirls as you have," Toriel giggled as she sat down next to him. Frisky smiled and boldly took her paw, giving it a squeeze.

"None of them will be as attracted to you as I am," he promised. The motherly monster blushed as he stood up and kissed her cheek.

"Hey." Frisky looked up to see Sans waiting with a massive boulder resting on one shoulder. "Pants, dude." He tossed Frisky his jeans that he'd dug out of the rubble. "Can't have everyone starin' at your boner while you're up there. I hear them humans is a bunch of pervs."

"SANS! I am going to start beating you to death with your own pelvis AND THEN NEVER STOP!" Papyrus shrieked.

"You're a real bro, bro," Frisky laughed, giving Sans a light punch in the shoulder. Sans punched him back, which still made him stumble a good five feet back. He put on his pants and with one last hug from his new mother, he went to the end of the ruined hallway. There was sunlight there, which made him wince from how bright it was. He wasn't sure he'd ever get used to it again after seeing the murky, quiet beauty of the underground. It was a good thing he wasn't going to stay up there for long. Looking back and hearing the friendly voices and seeing the familiar glow of the underground lights filled him with determination to return as quickly as he could.

There were only a few people he needed to tell: just enough that they wouldn't go sending the police for him and not to worry anyone he knew. It was just a day before that was through and he returned to the mountains, tossing his rope down the hole and shimmying down into the patch of flowers. He followed the dim path back home, finding the door unlocked and Toriel curled up in bed. Even in her sleep, the blankets were folded back on the other half waiting for him to climb inside. Frisky smiled and climbed in after her, spooning up against her big warm ass and cupping her massive breasts to secure his spot.

"I'm home, mommy," he sighed into her ear.