Costume Change (Patreon)

“Hey Ash, they're finally here!” Misty walked into the Cerulean Gym kitchen smiling while carrying a a large box.

“Awesome! I thought they'd never arrive in time!” said a delighted Ash.

It was the afternoon of Halloween when Ash and Misty got a package they were expecting in the mail. As usually, a big party would be held at the Cerulean City Hall for all the locals to dress up and have a good time. The two had cut it short, deciding very late what they would be going as, they had only made the order for costume a week in advance. Cutting the tape off with a knife, Misty opened the box to reveal two more boxes, one labelled Mr Ash Ketchum, the other just Misty.

“You know, you should really use your surname more often.” Ash looked at Misty with disbelief. 

“No way, I hate it.”

“I think it's cute.”

“Tough.”

Misty handed over Ash's box, then took out her own.

“I wonder what we got?” Ash wondered.

“We'll find out once we put them on. I'll go into my room to put on mine, and you got into the guest room for yours. Remember, leave twenty mins after I leave for the party, okay?”

“Yeah yeah, I know.”

A common craze for Halloween parties in the Pokemon World was PokeCostumes.com. Whenever someone went to the website to order a costume from them, they would fill in a random survey instead of selecting a costume. After payment is process, the customer would be sent a Pokemon costume based off their results. The fun thing about the costumes were they were full body suits that left no skin exposed so one would have a hard time guessing who it was inside the outfit, making a fun game of guess who when a large group of people gathered for a party, all wearing costumes from the website. Just like other customers, Ash and Misty wanted to try it out this year, as everyone they knew was doing so as well for the party, such as May and Max, Misty's sisters, Dawn and Zoey, Iris and Cilan, Brock, even Delia and Oak were going to join in as well. It would be a fun evening guessing who was dressed as who, as well as a great party too. Ash and Misty both took their boxes and walked upstairs to their respected rooms. 

As Misty walked into her room, tossing the box onto her bed and closed the door in-case Ash decided to peek at her costume, she took her top, throwing it to the ground while she unhooked her bra to free her breasts, then bend down while she pulled down her shorts and panties at the same time, leave her stark naked. She walked over to the box, crossing her fingers. 

“This better not be girly like a Jigglypuff.” she gritted her teeth as she took the lid off the box. She breathed a sigh of relief at the costume head looking back at her. “Oh thank god. A Lucario huh? That should be interesting.”

Misty began by unzipping the back of the costume, then stepped her long silk legs into the leg slots before pulling it up to her waist. The costume was made of a cool rubbery latex fabric that stretched and fitted into place, not too tightly but tight enough so there were no folds, like Misty really looked like a Lucario. Arms into their own slots, Misty began to zip up the back of the suit, thanks to a piece of string that helped pull up the zipper as her hands were made to look like paws. For the final touch, Misty pulled the stretchy hood over her head and face, then snapped the opening round her neck. After final adjustments to ensure the suit was correctly put on, Misty looked at her reflection in the mirror, smiling at the Lucario looking back at her. She really did look like a real Lucario, barring the breast lumps on her chest with a spike in the middle and the more human anatomy. Her fake shout moved with her mouth, she now had  three fingers and toes on each hand and foot instead of five, and a long fake blue tail that stood up on its own. With no skin or hair exposed, as long as she kept her mouth shut, there was no way anyone could tell it was her. 

“I do make for quite the sexy Lucario!” Misty told herself. “No one will tell it's me for su....”

A surge of pain struck Misty's body, causing her to fall back and onto her bed. The pain was felt al over her body, deep within her bones like a crushing feeling. 

“Ahhhhh, what is this....pain?” Misty moaned. She wanted to get up and move, but found her body unresponsive. As the pain increased, she could feel her bones snapping and cracking, like they were moulding her while skeleton into something else. Her upper fats fattened, while her lower legs became more thinner. Her chest shrank in size too, feeling like a size zero now. While Misty could not see the changes happening, one thing her tongue felt were her teeth sharpening into more animal shaped teeth and growing forwards out of her mouth and into the fake snout, while her nose vanished from her face, yet her scents of smell increased somehow. Ears from her head were now gone as well, but she could now feel the fake Lucario ears twitch.

“What's.....happening....to......hooooooooooooooowl!” Misty howled as a new sensation rocked her body. She could no longer feel the latex on her body, but now fur was growth all over the suit. It grew and grew until the latex was now longer visible, thus Misty's ordeal ended.

“I don't feel to great....” Misty thought to herself as she was able to move again. She sat up from the bed and stood up, almost losing her balance for some reason. As her head looked at the mirror again, the same reflection was not looking back as her. Instead now, she really did look like a Lucario, a real one!

“Howl?” she spoke, covering her mouth. She was meant to say what? But it came out as a howl? “Grrr, bark......”

“What's happened to me?” she thought to herself. “H-Have I turned into a REAL Lucario?!?”

Misty pinched her arm to confirm it. Her skin no longer felt like a latex suit but like her real skin covered in fur. She could no longer feel her ten fingers, only the six big ones within her paws. She felt her chest, something was clearly wrong.

“What the hell happened to my breasts?!?

Her breasts were nowhere to be found, just a flat furry chest with a spike in the middle. To make matters worse, she found that her tail was moving. Concentrating, she could move it with her mind.

“Holy crap, I AM a Lucario!!!” she panicked and the fell back on the bed, losing her balance as she was not used to the paws she had now for feet. “What am I going to do?!? I cannot speak, no one knows its me, and if I go outside, Ash or someone could catch me or something!!! This can't be any...”

Just then, she starred at a picture on her bedside cabinet of her and her three sisters from a day out on the beach. Her eyes could not look away as Misty felt a new unusual feeling causing her to pant like a dog and even sweat a bit. She felt something new in-between her legs and when she looked, was gob smacked at the sight of it.

“Is that a.....p-p-p-p.............I'M A MALE LUCARIO?!?!?”

She sat up to confirm her new fear, she had indeed gained a penis, a large erect one to be exact, and a sack of balls the size of golf balls nested under it all covered in fur! Her penis throbbing like a heart beat, that picture of her and her sisters in those revealing bikinis all wet from swimming started to rush into her mind.

“NO!” She thought. “I can't be.....getting off from my sisters! I'm not.......I'm not.....”

As much as she tried to repress it, the vision of wet breasts, hourglass bodies and even pussies was turning her on like a teenage boy passed puberty. Suddenly those things were really arousing her, now she was a he. Looking down again, she noticed her right paw clutching her new cock, and stroking it up and down slowly. 

“I-Is this what guys do?”

Now curious, Misty began to jerk faster, causing her to moan as she experienced male pleasure for the first time. The imagines in her head only enhanced the experience, as she envisioned those female features again, but this time more naked. She imagined her sisters jingling their breasts up and down, kissing each other, clutching and wiggling their asses, and stroke and playing with their pussies as sexually as possible. As wrong as it was to fantasize about her sisters that way, it began her new fantasy and turn on, to do a woman in her male Pokemon form.

“HOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOWWWWWLLLLLLLLL!!!!!” Misty screamed as her cock erupted with long hot white lava. Collapsing on her bed once more, Misty took long breaths and pants. She had played with herself as a girl and experienced an orgasm before, but the male equivalent was something different. Even though she used to be a tomboy, she could never imagine how fapping a cock would feel, and she was right to do so. It was nothing like fingering herself, it was completed different but still felt as good. As her snout drooled and her cock still throbbed, she muttered......

“I......I.....am so....fucked up......”

As that was going on, Ash was in the guest room, about to see his costume. He had already stripped out of all this clothes and was about to open his box. Once he did however, unlike Misty he was not too thrilled with what he got.

“Aww, you've got to be kidding me!” He moaned as he took out the brown costume. “I really can't wear THIS! When they find out it's me, I'll be the laughing stock of the part!”

Ash had a think about what to do. He could not back out as he accepted the invitation and he knew Misty would be mad at him for blowing forty dollars on a costume he was not going to wear. That was when he thought of an idea. He remembered Tracy asked him before he left Pallet Town to tell the others he couldn’t make the party because he was not feeling well. Only Ash knew Tracy wasn’t going to be there, since Oak and Delia had left before Tracy was stuck ill, so if perhaps he pretended to be Tracy when everyone revealed who they were, then it shouldn’t be a problem, as the costumes were fitted for openings for eating and toilet duties. As long as he kept the costume on, no one would know it was him. Ash could do a decent Tracy impression, and it was not hard to pretend to be a Pokemon Watcher either. Sure, Tracy would deny  he went to the party, but even then no one would know who he really was in the end, or just not believe Tracy. It seemed like the perfect way to avoid embarrassment for himself. 

“Oh I'm sure it'll work out just fine!” Ash smiled to himself as he stepped into the costume. Wit legs in, he then pulled the costume above his waist, his lower body now a chocolate brown colour with yellow puffy fur on the legs while his manhood was concealed in a cup build inside the costume, and the wrists once he pulled his arms into the arm slots of the costume. Zipping himself up at the back thanks to another piece of string, all that remained was the brown hood. Ash pulled it down onto his head and snapped in place the neck opening, a bit tricky with those huge fake ears on top and those big eyebrows, but he managed. He looked at his reflection at the mirror. The latex suit was very shiny, but still very brown almost all over, expect for the puffy yellow fake fur on his wrists, legs, eyebrows and most of the long fake ears. Once again, Ash look nothing like his human self, just a humanly shaped Pokemon.

“You know, for what it is, I don't look too badly in this costume!” Ash trilled around, giggling at his little brown tail above his ass. “Maybe it's not a bad thing going as a L....”

Interrupted, Ash felt pain all over his body, falling him backwards onto the bed behind him. Like Misty before, the pain was internal, right down to his bones and snapped, twisted and turned, changing his shape which his chest started to feel very heavy and his crotch feeling the most pain, like he was just kicked in the balls. 

“Ahhhhhhh!” The poor boy moaned, unable to move himself. “What's happening to me? What's.....Lo. Lo? Lopunny?”

With his speech now effected, fur grew all over the costume. Small brown fur all over apart from the cream yellow parts, which now the eyebrows and ears began to feel so real to Ash, moving with his body, while the ears bounced in movement and twitched like real bunny ears, even the tail started some movement too.  Soon enough, the pain faded away. Out of breath, Ash  slowly stood up to look at the horror in the mirror. And oh it was near the same reflection, but now the human shape had been lost and now Ash looked like a real Lopunny for sure. However, that was not the biggest worry he had.

“W-W-WHERE THE HELL DID THESE BREASTS COME FROM?!?” He screamed in his thoughts. While he did now have the shape of a Lopunny, a large DD cup pair of breasts were now hanging from his chest, complete with the pinkest nipples you'd ever seen. While Ash knew what breasts were, he had never seen a pair in the flesh, and nothing thought his first would be his own! Cupping them both, Ash jiggled them a bit before giving them a squeeze. 

“Ahhhh, these are....so sensitive!” Ash moaned from the pleasure. “Even the fur tickles my nipples a little...wait a sec!”

Realizing something important, his hands turned to another area of his body. Just as he though, his Pokeflute and Pokeballs were all got, replaced with what seemed like...well Ash had no idea what he had gained, besides a much bigger ass and hips. Breasts were a noticeable thing, he watched Misty, May, Dawn and Iris blossom over the last eight years during his travels, but he had never wondered just what did a woman have down below instead of a penis. 

“I really need to cut down on the Pokemon and educate myself in more real life matt........AAAAAAAAAAAAAAAAAAHHHHHHHHHHH!”

Stroking the new strange thing with his fingers now turned paws, Ash accidentally stretched a small opening and inserted a paw finger inside of his womanhood. The new pleasure came as a shock so great for his mind and body, that he fell back onto the best.

“I-I-Is this what girls...do to.....huh?”

Just then, Ash's eyes locked onto the posters in the room. Being that four girls lived in the Cerulean Gym, the posters were of boys in nothing but swimming shorts. Unfortunately for Ash, one caught his eyes completely, one of a guy with quick the muscular body and quite the bulge down below. Ash's face only glowed a bright red not just from arousal, but utter embarrassment.

“Dammit Gary, why did you pose for that magazine a couple of years ago?!?” Ash moaned at himself, but for some reason, Gary looked extremely attractive in the poster, and dirty thoughts ran through his head, imagining feeling that strong hot muscular body against his soft female frame, and getting a hold of that Pokeflute of his. As Ash thought about how big it could be, what it might taste like and even how it would feel inside of him, he started to push his paw finger in and out of is vagina. This only made the arousal even better as Ash increased speed and cupping a breast with his spare paw made he grow hotter and wetter from both sweat and the strange liquid coming from his new vagina. 

“Ahhhh! He moaned. “This feels.......great! S-S-Something's.....AAAAAAHHH!”

The something in question was a feeling building up inside his body that increased the more he fingered himself. He could feeling it building inside his tummy and slowly moving towards his pussy, almost like a pee, but more and more pleasurable.

“OH GOD, OH GOD, OH.......AAAAAAAAHHHHHHHHHHHHHH!!!!!”

An explosion of love juices erupted out of his pussy, spraying all over his paw. As the former boy breathed heavily, he rubbed the dripping juices from his vagina and began to lick it all off her paws like it was an ice cream. 

“Why....did I never.....masturbate before?” 

Ash did know what masturbation was, only because Brock nonce whispered it into his ear one time when Dawn was taking longer then usual to come out of her tent one morning. Like most things a in life that were not Pokemon related, he neglected the subject. Being with Pikachu just about all the time may have been a factor, but he also loved and cherished his Pokemon more then anything in the world. It was the very reason why he had no girlfriend, or hobbies outside of Pokemon, that burning dream to be the world's greatest Pokemon Master and now look where he was. Now a horny female Lopunny, what league would have him now that wouldn’t tried to capture him, he couldn’t even speak the human language any more.

A knock on the room soon followed that struck Ash on the head that Misty was also putting on a costume! He turned his head to watch the room door open widely to reveal a Lucario that starred at him. 

“M-Misty?” Ash asked the Pokemon.

“A-Ash?” Misty responded back.

“H-Hey we can understand each other!” The two spoke in unison. A feeling of relief was felt by them both as now at least they each had someone that could understand them. While they were still talking like Pokemon in reality, this was a step forward for the both of them. Misty walked over to the bed towards Ash.

“So I guess you turned into a Pokemon too then.” Misty spoke while looking down at the pussy juice on the bed. “And you've been busy...”

“You're one to talk!” Ash responded, looking at the line of cum hanging from Misty's cock. 

“I know, I know. But still, why the heck did we change into Pokemon exactly, and why have our genders switched too?”

“Beats me. They'll be receiving a strongly worded complain from me by Monday!” Ash joked.

“Like you can write with a pen with those paws!” Misty giggled, and Ash joined in. After their short lived giggle, the two stood silent, both feeling awkward seeing each other naked in their Pokemon forms. Starring long enough, Misty's cock suddenly arose erect again while Ash got erected in the nipple and clit departments. 

  “Oh god..” Misty moaned. “Why am I....with you.....”

“Me....tooo....” Ash moaned as well.

“There's no fighting it is there?”

“Nope. Get on the bed.”

Misty did as Ash told her and knelled on the bed with Ash's breasts in the middle of her cock. Almost like instinct, Ash pressed his boobs together the cushion the hard cock in the soft furry boob skin.   

“Ahhh.” Misty moaned. “No wonder guys love this!”

At that moment, Ash leaned his head forward and began to suck the cock tip poking out of his cleavage. It almost felt natural to him, like how he was brought up about the Pidgeys and the Combees about what a guy did to mate with someone, only now it was like he was brought up on the female part of that lesson. Titty fucking continued for a good while before Misty came to the wet softness that was Ash's mouth and tongue, inflating his cheeks with her cum. 

“Ahh, ahhh, dammit Ash.” Misty moaned. “I was never a good cock sucker as you are!”

“Tee hee.” Ash smiled after swallowing the cum in his mouth. “Nothing to it, your cock is so yummy Misty!”

“Nothing to it huh?”

Misty got off of Ash and then lifted him up so he was on all fours on the bed with his bunny ass and pussy in front of her. 

“Well let's see how your virginity fares shall we?”  Misty grinned as she shoved her whole hard cock straight into Ash's pussy.

“AHHHHHHHHHH!” Ash yelled. “Not so rough!”

“I'm the humper now Ash, I'll be as rough as I want! You're just the humpdee now!”

Rough she was, as Misty thrusted  back and forth as hard and as fast as she could. She didn’t know what she wanted it so rough, but her body was only answering to her arousal and not her thoughts. Ash moaned and hung his mouth wide open as drool flowed and dripped out of his mouth. Feeling that thing inside of him rub his love tunnels while even the cock fur stroking her insides only enhanced the pleasure as the very thing he used to have just minutes ago was fucking him so hard, she did not care any more. If this was what being in heat felt like, he loved it. Pussy burning with the desire for cock, and even though love juices were pouring out of it, his pussy was remained hot, never cooler.

“AHHH AHHHH AHHHHHH AHHHHH AHHHHHH AHHHHHH AHHHHH!” Ash moaned at the top of his lungs. “THIS, FEELS, SO GREAT! AHHHHHHH. I'VE, LOVE, BEING, AHHHHHH, FEMAAAAAAAAAAAALE!”

Misty meanwhile could not believe just how soft and tight the inside of Ash's pussy felt against her cock. She took everything bad back she ever thought out perverted boys, finally understanding their desire for sex with women and how good it felt. At long last, she could brush away all those feminine girly things about and be the full on tomboy she always was. 

“ THIS IS, AHHHHH, FUCKING AMAZING!” Misty moaned as well. “BE MALE IS, AHHHHHHH, AWESOOOOOOMMMMMMMMEEEEEE!”

As they both yelled their happiness of becoming the opposite gender, the two erupted in orgasm and comings of their sweet love nectar joining as one.

 After many hour of sex, rest and more sex and rest, in as many positions as they could think of, the two started to talk to one another as they rested on the bed soaked in their sweat and juices.

“You know, we can no longer stay here or with our friends.” Misty spoke. “One look at us...”

“I know.” Ash interrupted. “They'd catch us without a moment's thought. We cannot speak, we cannot write, we just cannot communicate with them.”

“Even if we could, would you?”

“After all this? Absolutely not! My pussy would never forgive me!”

“Same with my cock. Dunno about you, but it just feels so right that I'm a male. True, I'm a Pokemon too, but at least we have no more human chores or stuff to do!”

“True, we can be free as wild Pokemon together and fuck whenever we want!”

“And our friends and Pokemon?”

“They will be sad that we're gone, but I'm sure they will live happy lives once they someday learn to move on from our disappearance.”

“I guess you're right sweety. Shall we get going?”

“Where?”

“Where ever we want.”

A year had pasted since the disappearances of Ash Ketchum and Misty. The only clues left behind were their clothes, discarded in separate rooms and the strange puddles of Pokemon sperm and cum all over one of the beds. By then, with no leads what so ever, the case had been closed, and friends and family graved, but eventually moved on and got on with their lives.

Deep within an area of privately owned land close to Cerulean City was a Lopunny sitting on some hay while heavily pregnant and holding two of her Buneary litter and they suckled of her enlarged lactating breasts while two more waited their turn. Any traits of her manhood had now long dissolved both mentally and physically, only leaving the behaviour of a female Pokemon and mother. Ash smiled as he looked up in the trees at the Lucario standing watch on the highest branch, looking out for poachers and any other humans. Now fully a male Pokemon, Misty took on the full male responsibility of a provider and a lover to Ash, and a father to his children. The two had never been closer, now bound with the real truth to their disappearance and living their lives as Pokemon fully. 

From that point on, Halloween meant more to them then just an excuse to dress up. It was the day of their rebirth into the world, the anniversary of their newly found relationship, as well as an excuse to celebrate with a whole night of sex...

The End?