Bloodsucker to Thumbsucker (Patreon)

It was a dark and stormy Halloween night when Catina pushed open the doors to the White Worm Tavern where several patrons, many of whom were tourists, were getting drunk and celebrating the All Hallow's Eve festivities.

Some were in costume, but Catina wasn't. She was dressed up though, wearing a red side split dress that showed off her legs and back. Catina wasn't here to celebrate Halloween, although Halloween was a very important night for her. The seductress was here for a very particular reason.

Catina made her way to the bar and found an empty stool, in between two men whose attention she immediately captured. The gentleman on her left looked about 35 years old, same as her, and the one to her right looked older - maybe about 60 years old - and wearing a long trenchcoat. She decided to focus in on the man to her left, who was more the type she had been looking for.

"Bloody Mary, please," Catina ordered from the bartender in her thick Romanian accent. As the bartender set off to make the cocktail, Catina turned to the gentleman on her left to begin her cat-and-mouse game.

"I've never seen you here before," she said, addressing him.

"Oh, I've not bin," the man responded in a strong Yorkshire accent. "Always wanted to spend Halloween in Transylvania. Didn't know the lasses were so pretty, though."

Catina giggled, although she had heard stupid pick-up lines like that all the time. Brits had historically been easier targets than most, so she could seduce him quickly.

"Oh stop," Catina feigned, batting him jokingly with her hand. "You must say that to every lady."

"Only the ones that catch my eye," the man said, winking. "Name's Roger."

"Catina," Catina introduced herself before taking a sip of her Bloody Mary.

Catina chatted up Roger for the next hour with all her usual tactics: laughing at all of his bad jokes, some moments of light physical touching, and of course, asking his workout routine. The man was putty in her hands and, as the chat grew steamier, Catina was convinced there was no way she wasn't going home with him.

Finally, Catina offered, "Do you want to get out of here?" After a moment of hesitation from Roger, Catina followed up, "Come on, I don't bite."

Roger invited Catina to the hotel he was staying at to split a bottle of wine. Catina left with him eagerly. Roger was the catch of the day and she had hooked him. The pair made their way through the storm to a lavish hotel with a gold-plated lobby. Roger lead Catina to the elevator and they made their way to the seventh floor.

Catina's heart pounded as Roger lead her down the gothic and dimly lit corridor to his lavish hotel room. This was all leading to the moment she had been waiting all year for. It had been so long. She couldn't help but imagine wrapping her lips around his thick, juicy...

Roger pushed open the door, revealing quite an exquisite hotel room with green carpeted flooring and large king-sized bed adorned with an elegant sequined comforter.

"So, this is my..." Roger managed before Catina switched the lights back off, leaving the room completely dark save for the full moonlight. Catina was feeling herself, running her own hands over all her sensitives areas and tingling with anticipation.

"No more chit-chat," Catina declared, mad with lust. "I need you now!"

She leapt towards Roger like a wild animal, tackling him to mattress where she kissed him passionately. Jumping into the moment, Roger began to undress his date by unzipping her dress whilst she made out with his neck and rubbed his crank through his pants. He removed her bra and her massive breasts swung down in front of Roger's face.

Roger turned Catina's face to make out with her, but she pushed back and returned to his neck. Roger was puzzled, but lay back and let her take control. Catina shoved her hand down the front of Roger's pants and sped up her hand movements. With each stroke of his cock, Roger grew closer and closer to climax.

Gripping on to either side of the bed frame, Roger prepared to cum all over Catina's perfect chest. He turned his head to the left, catching a glimpse of the room-length mirror mounted on the wall. His reflection lay tense and built up on the mattress, but Catina wasn't there. Roger gasped and did a double take back towards Catina.

The last thing Roger saw as Catina lifted her head was a pair of fangs appearing from the top of Catina's mouth. Thunder struck outside as she returned to his neck and sunk her fangs deep inside.

Roger thrashed and screamed, unable to stop himself from unloading all over himself as blood gushed out of the two puncture wounds in his neck. Roger struggled to lift his arms and attempt to push the creature off of himself, but his limbs grew limp as more and more blood kept bursting from his neck, dripping and staining the comforter below.

Catina was like a dog, slurping every drop she could get her sweet lips around. She began feeling herself again as she drank each spurt like it was an oasis in the desert. It had been so long since Catina had savored the sweet, sweet taste of blood and she was relishing every single sip.

Roger now lay completely dormant, dead in the middle of the mattress. In a matter of moments, his body shriveled up and his hair turned gray. He had rapidly transformed from a young bachelor in his mid-30s to the long-rotted corpse of an elderly man.

Meanwhile, as Catina lapped up the last of the non-coagulated blood, her body began to transform as well. Her face became smoother with less blemishes. Her already slim waist became even slimmer and her hips moved closer together. Her bones turned stronger and her posture grew better. Her large breasts moved slightly upward, now perky and firm. She stood up off the mattress and licked her lips in the body of a 24-year old.

Catina was a vampire and a succubus, prowling Transylvania each Halloween night in search of young men to suck the vital essence out of. In reality, she was nearly 500 years old, but drinking the blood of men each year once the sunlight had disappeared from the sky was practically a personal Fountain of Youth for the vibrant supercentenarian.

Reveling in her kill for one final second, Catina knew she had to retreat from the hotel before her murder was discovered. Although, Catina had never ran into trouble before; after all, no one would notice a vampire on Halloween night. Still, she had to return to her coffin and Master Dracula before sunrise.

Catina quickly undressed and drew a shower for herself. Watching the bloody water flow down to the faucet only made Catina's thirst for more blood increase. She moaned at the erotic thought of digging her teeth further into Roger's corpse, defiling it further for just one more drop of blood. She had to ignore the temptation, quickly jumping out of the shower to dry herself off as soon as possible before she got retrieved her red dress and swiftly exited the apartment.

Making her way to the elevator, Catina passed a group of football lads chanting in a language Catina had not yet learned. They paused their singing as they noticed Catina to yell something to her, most likely some disparaging comment about her newly bouncy tits or tight butt. Then, they turned to laugh at each other as Catina hit the "down" button on the elevator.

Catina fast-walked through the lobby to avoid any attention that might be on her. Perhaps, someone would recognize her from her entrance and notice her transformation, prompting further questions. She scanned the lobby as she marched to see if any eyes were on her. It seemed like no one's gaze lingered on her, except for the usual admirers. Then, as her eyes turned to the hotel bar, she briefly noticed through the shadows, an older gentleman pay his tab and turn to the lobby, making eye contact with her.

That was all Catina processed before leaving the hotel. She turned right out of the large, towering doors and headed down the street. Torrential rain pounded down on the pavement as the vampire walked down the street without a gentleman suitor and, therefore, without an umbrella. No matter, it was only a short walk to Dracula's Castle where she'd have a year of isolating indoors to dry off.

The streets were empty this time of night, so Catina took notice as she heard the pitter patter of steps through the puddles behind her. She glanced back briefly to see the silhouette of the gentleman leaving the bar following close behind. Heart pounding, she sped up her pace. It was possible that this man was simply heading to his home the same way at the same time as Catina, but not probable.

The increasing tempo of the gentleman's splashing footsteps confirmed Catina's suspicions that this was no coincidence. She broke out into a sprint and the gentleman behind her did the same. Now exiting the city limits, Catina panted and her heart pounded as she made her way up the treacherous mountain path the looming gothic castle.

Suddenly, Catina stumbled on the slippery rocks and caught herself on her hands and knees. When she turned over, the gentleman was right behind her holding a wooden stake over his head! Lightning hit nearby, illuminating the gentleman - it was the old man in the trenchcoat from the White Worm Tavern. He must have followed Catina back to the hotel in order to see if her date had disappeared. He was a vampire hunter and now he was about to drive the vampires' one weakness into Catina.

As he lunged the stake towards Catina's heart, Catina grabbed his arm as the stake hovered over her heart. Without any other options, Catina sunk her fangs into the vampire hunter's arm. The hunter screamed and dropped his stake as Catina's fangs exited through the other side of his arm. She ripped a chunk of the arm off, leaving the hunter in agony, but she wasn't planning on sparing him yet. She bit in again, this time tearing the hunter's left arm clean off.

The hunter tried to crawl to get away, but was too slow as Catina flew at him like a bat, biting now at his right leg. His screams were drowned out by the roaring thunder and the crashing of rain. As she gnawed off his leg, Catina hissed like a venomous snake as her tongue thrashed about to suck up as much of the blood as possible.

The vampire hunter lay still as the life began to leave his body. He was an easy kill now, but Catina knew drinking too much blood would have disastrous consequences. Nevertheless, she was too far in to think straight and her bloodlust had consumed her. She reached her hands into man's chest, ripping it apart with her sheer strength. The vampire hunter used what strength he had left to scream as his thorax audibly crunched as the bones split apart like a wishbone. Catina reached one hand into his chest, splashing blood everywhere and ripped out the man's barely-beating heart. She sank her teeth into it like it was an apple, squirting blood across her face and body with each bite. She was ravenous like a wolf, devouring the man's heart until it had been completely consumed.

Completely exasperated from the ordeal, Catina sat her ass on the soaked stones and caught her breath. The storm had passed and Catina knew there were only a few moments before sunrise when the sunlight would burn her alive. She had to move.

But, before she could stand, her transformation began. The older vampire hunter didn't have as much life essence to give, but Catina's overindulgence in sucking his blood would set her age back far beyond its peak. What kind of changes would manifest themselves as a result of this was a mystery to Catina. She closed her eyes and braced for it.

She opened them only a second later to discover her body was not all that dissimilar - clear face, big breasts; however, her ass was noticeably bigger. Her black hair was now tied up into pigtails by two purple ribbons. Her red dress was gone, replaced by a black onesie adorned with purple bats and with white frills at the arm and leg holes. Underneath the onesie was something thick and puffy; Catina realized that her butt hadn't grown in size at all - it only appeared that way because of the large padding that covered it. She was wearing a thick, purple diaper!

Catina attempted to stand and hurry back to the castle, knowing that despite her embarrassing age regression her priority had to be getting inside before the sun touched her skin. As she got on her legs, however, they wobbled and she was sent crashing back onto the stones below. Very unlike herself, Catina felt like crying as the hard stones scraped her skin. She had to choke back tears, knowing that the other vampires would laugh themselves silly if they caught her crying over a little stumble. Nonetheless, she realized she would be unable to stand and, with sunrise only minutes away, she was forced to crawl up the mountain.

The killer vampire felt silly crawling on her hands and knees with her padded rump sticking prominently through her onesie. She burned with so much humiliation that she was considering burning up in front of the sun instead to save herself the embarrassment. Before she had the chance to consider the option seriously, she spotted a grown vampire walking down the mountain towards her. It was her Master Dracula.

Catina's face turned as non-pale as a vampire's face could be as Dracula looked down from his mighty height at her. She tried to focus on the ground to avoid Dracula's disappointment.

"What have you done?" Dracula asked in bewilderment. "Why couldn't you control yourself?"

"Sowwy Mastah Drackoolah," Catina lisped with a moment of shock, realizing that that was what she sounded like now.

"We must get you inside, quickly!" Dracula shouted, lifting Catina with incredible ease and holding her to his hip, allowing her head to rest naturally on his shoulder. Dracula used his free hand to wrap his long, flowing cloak around her as he turned back to the castle and headed inside.

There, the two other Brides of Dracula stood completely topless in their brand new, hot, and young bodies. Their grins grew as they viewed Catina being carried into the castle. Catina buried her head in Dracula's chest, hoping it would protect her from the vicious mockery the other lady vampires were sure to give her.

"Look at the killer vampire," one of them teased. "I'm quaking in my boots!"

"Over five centuries old and still in diapers!" the other mocked.

The two cackled as Dracula rushed passed them with Catina in tow. He made his way up several flights of the castle stairs to the Brides' chamber where their three coffins lay. He placed her in her coffin.

"Wha's gonna happun?" Catina asked, hoping to avoid the truth - that she was gonna be stuck like this until she grew out her regressed age enough to be able to walk around and not need diapers.

Dracula didn't inspire her confidence by responding, "What do you plan to do next Halloween? Waddle after your prey? No, you will stay here for the next several years."

Dracula wandered off briefly as Catina lay helpless in her coffin. Next several years? Well, that was no big deal to a vampire, Catina figured. Ten years was like ten weeks for her. She'd have her sexy body back in twenty and in thirty she could join the other Brides in the Halloween hunt again. Her diapers would be a momentary blip in her eras-spanning life. Come next century, she'd barely remember them.

Suddenly, Dracula returned and handed her stuffed bat toy which she couldn't help but squeeze and hug tightly as soon as it left Dracula's hands. Dracula then handed her something else. Her eyes immediately widened and her hopes of diapers becoming a distant memory easily faded as her other hand took the baby bottle that Dracula handed to her. The baby bottle was full, but not of milk. It was red and full of blood. Life essence to keep her young.

"We cannot risk you giving us away," Dracula explained. "At least not for another generation. Sorry, Catina, but you will drink blood out of bottles for the time being."

"Bu.. but..." Catina stammered, before being interrupted by the two topless Brides bouncing in and running their hands all over Dracula's torso.

"Come on, Daddy Dracula," one said seductively. "Haven't we been patient enough?"

"The sun's coming up," the other added. "So it's baby's naptime anyway. She's probably tuckered out from her long night."

Catina looked up at Dracula, longing for him to reconsider. She couldn't be trapped in this coffin, messing and wetting her diaper for the next century! She was a tempting succubus! A terrifying vampire! A creature of the night! Not a diaper-wetting baby!

Despite Catina's nonverbal pleas, Dracula shut the coffin and ran off to fool around with the vibrant vampires in the vivacious new versions of their bodies.

Catina knew drinking the bottle of blood would extend her life as a toddling baby. Drinking too much blood had gotten her into this mess in the first place! She had to resist.

And yet, she couldn't. The addictive taste was still fresh in her brain and it was impossible to reject. In a matter of seconds, she was suckling down the contents of the baby bottle. She tingled in ecstasy from the warm, animated, sparkling taste of the life essence making her more and more babyish.

As she sucked the bottle, her hands felt up her body like they had in the hotel, eventually removing her onesie and finding their way into her diaper.

Catina's body lit up and the nipples of her now exposed breasts became hard as the bottle gifted her a tiny stream of blood with each suckle. She had lost all control and now she'd pay the price for the next 100 years. She'd gone from vicious bloodsucker to cute thumbsucker, and as she filled her diaper from excitement, she didn't seem to care.