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Dr. Jekyll and Ms. Heidi Ch. 01

By: hingesamero



Dr. Henrietta Jekyll looked at the many active projects she had laid out in her lab. Each used to demand fair amounts of her time. There were tests on fat burning supplements, new versions of food additives, moisturizers and even rejuvenation creams. She used to get excited about these projects but... no more. She now only thought about the Formula. Ever since she'd stumbled upon her great grandfathers old notebooks in her family home, she'd become obsessed with his projects. He too had been a scientist and from what she had gathered, quite the good one. She couldn't find any projects he'd been credited on but his notes had led her to leaps in her own work she never would have come up with.

It had sparked so many ideas for future projects and possibilities that she could barely sleep most nights. It was good that her roommate, Anna, was studying so hard for finals. Otherwise, Henrietta's coming and going so late would probably have caused an issue. Anna had been equally as fascinated by the notebooks. She, like Henrietta, was a grad student in biochemistry. The two had known each other since their undergrad and had become quite inseparable. Even the men in their lives couldn't break them up (what few men there had been).

Currently, Henrietta spent every night in the lab until almost dawn. She felt like she was so close to finishing the Formula. So close to recreating this lost treasure. The notebooks described it as the ultimate product for rejuvenation and vitality. She thought of how it could be marketed and sold and used and the possibilities just made her work harder. She would finally be taken seriously among her peers in the graduate program and eventually land the job she knew would get her family off of her back. Anna had been so supportive of her. She wished her boyfriend, Carl, had been half as helpful. Instead, Carl just came to the lab and shot holes in her theories so she'd go and have sex with him. When he'd get rejected, he'd "forget" to call her for a week or so. It was crushing. Henrietta would have left him if she thought she thought she could do any better. 

As she took a moment to wash up before handling new chemicals, she examined herself in the mirror. She sighed at the reflection: Average height, brown hair she could do nothing with except pull in a ponytail, glasses, about 10lbs too many on her frame, and breasts that barely required a bra. Her teenage acne had left scarring and her waist could never wear a skirt properly. Anna wasn't a looker either. A mid-20s latina with curly hair that had to be tamed by a straighter every morning, lips that were constantly chapped and equally poor eyesight as Henrietta. Her breasts, while bigger than her roommates, were saggy and her thighs were too thick. The two of them were in a vicious cycle of feeling sorry for themselves and consuming sweets together to try to numb their body woes. 

Henrietta returned to the lab and looked over what she'd spent the week on: a glass container housed a purple liquid that was pretty much all she could work out of the Formula. She wasn't sure what to do now. Maybe administer it to some of the lab animals and track the results... she was so tired. She could barely think. She just needed another drink of coffee, she thought. She chugged her caffeinated drink and was confused by the sweetness of it... and then realized that in her sleep-deprived state, she'd actually drank the Formula instead... 

Henrietta began to panic. She'd run no tests and had no idea of what the side effects would be. She wasn't able to get much detail from the notebooks about what EXACTLY the Formula would do but... she hoped causing her liver to shut down wasn't one of the possibilities. 

The door to the lab slammed shut and she could hear Carl stomp into the lab. He'd swung by again, it looked like, looking for another quickie. She didn't have the patience for this right now. She was too caught up in the Formula and what it might do to her, untested. 

He tried to make the moves on her again, kissing her neck and rubbing her shoulders. 

"C'mon... just come back to the apartment and we'll have some fun in your room." 

She could feel herself get aroused (for a change) at his movements. Why was this suddenly working on her? Henrietta felt flushed and tingly all over. 

"Ugh... Carl... I... don't. I'm not... jesus is it hot in here?" 

"Babe... are you ok...?" She heard him say. 

The changes hit suddenly... and without any further warning: Henrietta screamed and moaned as her skin felt like it was stretching. Her breasts were feeling fuller and larger, straining against her bra and blouse, her arms felt stronger and her hair seemed to flow out over her shoulders. She undid her ponytail to let her hair free and couldn't help pulling at her now constricting blouse. Her eyesight changed as well, her glasses no longer being necessary. She could feel her pants becoming too short and tighter than they once were. She pulled at them as well, tearing them like tissue paper. By the time the seizures stopped, she was breathing heavily in a voice that didn't sound like her anymore. It was husky and sultry and aroused beyond reason. 

"Mmmm goddamit. That felt gooooood." 

This new voice came with new thoughts and feelings... new urges. She wanted to fuck and screw and eat and drink... she wanted to tear off these stupid clothes and wear something hotter. She wanted to pound a bottle of bourbon, eat a steak and then have pornstar sex against a window. She wasn't Henrietta anymore... That was a silly name for a woman like this... She was Heidi. 

Carl looked frightened. He'd seen the change happen and wasn't sure what to do. The woman before him in no way resembled his girlfriend. She was hotter, that was for sure. The way she was looking at him was almost like a predator looking at prey, getting ready for the kill. 

"First things first," the woman said. "Gotta make sure I don't run out of this lovely stuff." 

He watched as she poured a large container of purple solution into a series of water bottles and then placed them in Henrietta's backpack. The woman stopped and poured a few more. 

"I think I know some other fun I can have with these..." She seemed to be saying this to no one in particular. 

Carl muttered, "Henrietta... is that you?" 

"No no darling. That mousy little twat you tried so hard to screw is away at the moment. I'm Heidi. Let's play." 

The amazon before him pulled off her tattered slacks and tore away her strained blouse. The bra underneath was all but shredded as well and was discarded with the rest. She took the lab coat off with some care ("might be needing this" she said to herself) and then slid off her torn panties. Heidi hopped up on the lab counter and spread her legs, her pussy glistening with wetness. She started to play with it... 

"Unf. Fuck, that feels good. I don't think Henrietta ever took time to service herself enough, do you, Carl? Maybe then, you'd've been able to get a piece." 

She arched her back and moaned. "C'mon, big boy. Don't you want to see what it feels like now?" 

Carl didn't hesitate. He stripped his clothes off and took up position between Heidi's legs. She grabbed his hair and pulled at it as he kissed her passionately. The raw animalistic noises she made as he groped and fondled her made him more and more hot. It was like she was giving off some kind... scent, as well. Every whiff made him more primal in his desires. He couldn't even articulate speech... just grunt and growl. Soon he was inside her, pumping and thrusting. He watched as she fondled her breasts in front of him and gritted her teeth. 

"Yesss..." she moanted. "Just like that. Good boy. Fuck me like you've always wanted to!" 

Carl kept it up and finally came hard and all over her chest. Heidi played with her clit while her other hand scooped up Carl's cum and she tasted it in front of him. 

"Bet Henrietta never swallowed up such tasty treats huh?"

Carl just shook his head. He was thinking clearly again and was shocked at what had just happened. 

"What... happened to you?" He stammered. 

"Don't bother yourself with that" Heidi replied. "Looks like I'll be taking a break in a minute..." 

With that, Heidi's voice trailed off and she stretched like a large jungle cat. As she sat up, her body started to return to that of Henrietta's. Her skin and hair becoming normal, her breasts shrinking, her legs getting shorter, and she squinted and looked around for her glasses frantically. With that, she grabbed the lab coat that had been discarded on the floor and wrapped it around her, covering herself. 

"Omigod..." She said. "What... was that..." 

Carl got dressed quickly. "I have to go..." he said and ran out of the lab still trying to fasten his belt. 

Henrietta grabbed her bag and pulled her hair back into a ponytail. She looked around the room and fished her keys out of her shredded pants' pocket and slipped back on her shoes. Hopefully Anna could help her figure out what had happened...

She rushed across campus to her apartment building, quickly trying to weave through people and hoped they couldn't tell she was naked under her lab coat. She'd have to call Carl later once she'd figured out what had happened. Her building was pretty quiet. It was a weeknight and there were only 8 apartments in the whole building. Each floor had two rentals on it and her neighbors were two MBA students who were also nose-in-book this term. They were quite the pair, though: Dale and Chuck or the "Specimens" as Anna called them. Both in perfect shape, chiseled jaws, rugged looks... Henrietta would kill to take one or both of them... 

"Jesus. Where did those thoughts come from?!!?" 

As she put the key in the lock, she looked over her shoulder at her neighbors' door. She could hear them still up talking, their lights on. Henrietta shook her head and entered her apartment. She gently put her bag down making sure not to break the contents and knocked on Anna's door and then entered. Anna was wearing an oversized t-shirt shirt with her nose buried in a book, her hair in a bun and her glasses resting on her nose. 

"What's up? Jesus, where are your clothes!" 

Henrietta explained what she could piece together of the night. Anna was dumbstruck by the story and was also fascinated. 

"What the hell was in that stuff?" 

"I have no idea... It not only changed me but... I think it did something to Carl too. While we were... doing it... he was more aggressive and really, like, obeyed me and whatnot. It was," she shuttered, remembering the details again, "Really really hot. God, I'm getting flushed thinking about it..."

Anna's eyes went wide. "Jesus, that's intense. So you brought it all back here?" 

"I didn't. She did. I mean, I did... I don't know. I guess she didn't want to just leave it in the lab?" 

"Huh." Anna bit her lip and looked over at the bag on the floor. "So... I mean... What are you going to do now?" 

"I'm not sure. I mean, I can't really patent it or present it as-is. How do you sell 'were-amazon sex juice' y'know?" 

Anna nodded and squirmed a bit. "We could... I don't know... try it... I guess?" 

Henrietta started squirming too. Anna had read her mind. She couldn't stop thinking about being "Heidi" again... feeling so powerful and sexy... she was so lost in thought, she didn't even notice Anna grabbing the bag and removing a bottle from it.

Before she could say anything, Anna had drank the whole thing. She handed one to Henrietta. 

"Your turn...?" 

There was no going back now. She drank the contents as well and then they both just stood there, waiting. 

"Nothing's happening." 

"No I mean... It happened before though... almost as soon as Carl came into the room." 

"You said he came on to you... maybe arousal is the trigger or something?" 

"That sounds about right. Endorphins and body temperature rising, causing the change." 

Anna looked disappointed. Henrietta was as well. She dropped her hands from holding her lab coat shut and she noticed Anna looking at her bare breasts. 

"Jesus, I forgot to even put clothes on..." 

"No," Anna put her hands on Henrietta's chest. 

"We can just... I mean..." Henrietta felt Anna's lips against hers... soft and warm, the latina's hands moving across her waist and down her bare ass, under the coat. They made out for a minute before Henrietta felt Anna pull away suddenly. Henrietta opened her eyes to see her friend drop to her knees and then down on all fours. 

"UGH!" She yelled. 

Henrietta started to feel it to. The change was taking over... she started moving her hands over her body and felt it stretch and transform. She let the lab coat fall to the floor as she leaned back against the couch. Her fingers glided over her revised form, feeling her smooth skin and dripping pussy. The change had gone much faster this time and was also more enjoyable. She was Heidi once again.

Anna was having the growing pains that must have occurred for Heidi the first time. She gripped the carpet and tore chunks of it as her ass arched in the air and she screamed. Heidi could hear bones knitting and snapping, stretching sounds that were almost like fingers on a balloon. Anna's hair was getting longer and fuller, the curls straightening all on their own. Her thighs were thinning out as she was getting taller and she was developing quite the alluring ass. It was straining underneath a pair of cheap panties, turning them into a thong. She leaned back on her legs and Heidi could see her face contorting and shifting, her skin getting darker and her lips getting fuller. Her breasts were straining under the once oversized tshirt and the color of the shirt was straining against Anna's now larger frame. Heidi bit her lip as she watched Henrietta's roommate grip the collar of her tshirt and pull at it, ripping it to shreds like it was wrapping paper... a set of gorgeous full breasts underneath. The creature before her slowed her breathing and massaged her now freed breasts, pinching the nipples and moaning... she was something new now, just like Heidi.

"Well hello there, pretty..." Heidi purred as she looked at her new friend. 

"Mmmm hello. You're Heidi i take it?" 

"Why yes I am. What should we call you?" 

"Mmmm, chica, you can call me whatever you desire as long as you let me have a taste of that pussy you've got there..." 

"Oh? You want to have some of this?" Heidi spread her legs and ran a single finger over her slit. "Mm Hm!" 

The leggy latina started crawling over to Heidi, biting her lip and staring intently at the droplets moving down Heidi's leg. 

"I'll call you... Sonya... That sounds about... MMMM" She never finished the sentence. "Sonya" was between her legs devouring her pussy like it was a honey covered dessert. 

She stopped for a brief second, "Whatever you desire, chica..." before returning to her "meal." 

Heidi gripped the back of Sonya's head and gently pushed her deeper into her pussy. Sonya lapped up every drop she could as Heidi bucked into the woman's face, moaning the whole time. 

"Let me have a taste of you now, darling..." She lifted Sonya up and dropped to her own knees. She began lapping up the latina's pussy juice that had been outright gushing from underneath her stretched panties which she had torn open. 

"MMMM YESSSSSSS" Sonya screamed. "You are soooo good, Heidi... UNF!" 

Heidi worked her own pussy while licking Sonya's. Her fingers circled her clit, careful not to touch it until she was ready, her fingers alternated circling and pumping in and out of her wet, sticky hole...They both came at the same time, their moans loud like those of animals. Sonya collapsed to her knees and kissed Heidi's juice-covered lips and chin, her hands rubbing her chest. 

"So good... so much... I want more..." 

Suddenly there was a pounding on their front door. 

"Are you guys ok in there?" 

It was Chuck from across the hall. The girls must have been a bit too loud... 

"I don't know about you," Sonya smiled, "But I'm still... hungry..." 

She stood up and walked to the door, sliding her torn panties off as she went. Heidi stood up and leaned against the couch again, excited for what she assumed was about to transpire.

Sonya opened the door slowly. Chuck was standing there in work out shorts and a tshirt, Dale to his side in similar clothes. Sonya looked the two men over, seductively tracing her nipples and then down to her pussy. 

"Sorry boys... were we too loud? Couldn't... help it." She slid two fingers into her pussy and then slowly pulled them out, sucking on them while keeping eye contact with Chuck.

"We were... I mean..." Dale stammered. 

He couldn't think straight. He was getting painfully aroused looking at this gorgeous woman... he couldn't even remember who lived here before. Chuck looked at Sonya and then over her shoulder at the other girl. She was playing with herself too. He was hypnotized by her eyes... the smells from both girls... something... Dale pushed Chuck aside and walked into the apartment, Sonya walking ahead of him. 

"You want this?" She shook her ass a little in Dale's direction. "Come get it..." 

Dale suddenly stripped his clothes off and aggressively put his arms around Sonya's body, rubbing her tits and biting her neck. She could feel is erection between her legs. 

"Mmmm yeah... just like that..." Chuck was trying to concentrate but all he could think about was the other girl. He followed his roommate into the apartment and closed the door. He watched as Dale pushed the latina girl against the wall and started fucking her hard while grunting and growling. 

She moaned and screamed and egged him on. "Just like that, baby. Oh fuck yeah. Just like that..." 

The other girl was now standing up in front of him, her fingers wet and sticky... she presented them to him and kept eye contact: "Taste this... tell me if you like it..." 

He couldn't help himself... the smell was overpowering... he took the fingers in his mouth and sucked on them. His erection was instantaneous. 

"Looks like that worked...I'm Heidi, by the way." 

"I'm uh I mean... jesus what's happening..." 

"Just some good old fashioned fun, Chuck. Look how well Dale is having his fun? Don't you want to have some like that?" 

Chuck looked over at Dale. He'd knocked all the items off of a table in the dining area and was now fucking Sonya on top of it, her legs wrapped around him, her hands massaging her breasts. She was screaming in Spanish and gritting her teeth. He didn't even recognize his roommate anymore... just a wild animal humping his desired mate. 

"You like watching that? Wouldn't you rather have your own fun..." Heidi's voice trailed off as she removed Chuck's shorts and started fellating him, alternating between licking up his shaft and sucking the whole member in one gulp, gagging with each movement. 

"Oh my god..." He shuttered and stabilized himself. This woman knew what she was doing... whoever she was.

"MORE!" Chuck heard Dale pull himself off of Sonya and then move behind Heidi. 

He started fucking her pussy from behind. She didn't put up a fight at all, just positioned herself better for him to enter. She moaned with her mouth around Chuck's cock and kept sucking as Dale fucked her. Chuck looked over and the other girl had stood up and walked over. She was kneeling now, next to Heidi. They were both taking turns sucking Chuck. He couldn't take it anymore... his mind was becoming more clouded with all of the smells and stimulation. He started to grunt and grit his teeth like Dale was. He was overcome with lust and was so hot and flushed. He tore his tshirt off and looked at Sonya. 

"MINE!" He yelled and pulled away from Heidi to flip the latina around and start fucking her from behind as well. He watched as the two girls were now being fucked by him and Dale and were making out with each other, smiling and moaning. 


Dr. Jekyll and Ms. Heidi Ch. 01



He and Dale both came and then he noticed as Dale collapsed on the couch. He could barely stand afterwards as well. Chuck couldn't even feel his toes at this point. He tried to stand and needed to steady himself... the whole ordeal had taken all of his energy but he was thinking clearly again and was beyond confused. 

He grabbed his shirt and shorts and motioned to Dale, "We need to get out of here, man... I just..." and he ran out. Dale followed behind, leaving his shirt in the hurry he was going.

Sonya and Heidi lay there on their backs, cum dripping out of their holes. Both women were panting very hard and they had their eyes closed. When Heidi opened hers, Sonya was gone and Anna was back, her body returning to its average state. Anna locked eyes with Heidi but Heidi had to squint to see her. She realized that meant that she wasn't Heidi anymore and was back to being Henrietta. 

"So that was... something..." Anna blushed and looked around the apartment from her vantage point on the floor. The dining room table was a mess, her shirt was in shreds, and the floor had wet spots on it from cum and pussy juice. 

"Yeah... I know..." Henrietta sat up and looked around, taking her own survey. "We should do it again..." 

She bit her lip and looked at Anna. Anna smiled an evil grin and looked back. 

"Yesss" she purred. 

"Y'know..." she looked around and thought for a second. "We could have a party. Invite some girls over... let those two know... spike the punch..." 

The two girls laughed. Their weekend was about to get VERY interesting...



Dr. Jekyll and Ms. Heidi Ch. 02



It had been a strange week for Henrietta Jekyll. First, she'd finally perfected the Formula, a mysterious treasure that her ancestor had written about in a journal she'd uncovered. She considered it a treasure because once of what happened after she'd perfected it: Her life got infinitely more... enjoyable. Well, not just her life. Her life was now also Heidi's life. 

The Formula created a reaction in a woman's body that turned her into an amazon goddess with insatiable sexual needs. It also gave her the ability to arouse those around her to the point of uncontrollable lust. The smell and taste of the subject's vaginal fluids turned men into beasts. It was all quite pleasurable. The change lasted until the subject achieved a significant climax and then the Formula wore off and the subject returned to normal. It was this part of the Formula that Henrietta was the most disappointed with. She LOVED being Heidi and it was starting to affect her even when she was in her normal state. People around her weren't just passersby, they were potential fuck partners. She craved sex all the time and thought about it constantly. The best part was that she'd given the Formula to her roommate, Anna, and now her alter ego, Sonya, and Heidi were both free to bed whomever they wanted as well as each other. It'd been a long weekend of lesbian sex and seducing their neighbors, Chuck and Dale, into threesomes, foursomes, or just one woman watching the other take one or both men. Henrietta was truly enjoying being Heidi and would rush home as soon as possible to initiate the change.

Sometimes, she couldn't wait and she'd drink the Formula while still on campus. She'd have to pack a change of clothes or she'd rip through her outfits (she'd learned this the hard way the first day she'd taken the Formula). She'd walk into the locker room, wait for people to leave, and strip. Then she'd swallow a vial and masturbate to start the change. That was another part she'd have to work on. The physical changes would only happen if the subject was aroused which while also fun, made it a tedious aspect to bring out Heidi. She wanted it to happen instantaneously (she'd had some thoughts on that, though). After she'd changed into her alter ego, she'd put on her outfit and find a lover as soon as possible. Once, she'd been so horny she couldn't wait and seduced two cheerleaders who'd entered the locker room as she'd been changing. They saw her standing their, panting and sweating and groping herself, pussy juice dripping down her legs, and they'd gasped. Heidi had looked at them and dipped her fingers in her dripping cunt, getting them nice and sticky and then motioning them to come closer. The cheerleaders had and then she'd watched as they'd each licked the juices off. They couldn't strip out of their uniforms fast enough after that. She'd loved dominating them with her scent and then watching them go wild at eating her out and sucking her nipples. Their screams and moans and grunts were just like Heidi's male suitors had been: wild and lustful with abandon. Unf, that was a good afternoon. Henrietta squirmed in her lab seat thinking about it.

She'd reserved an hour of lab time today to make a very large batch of the Formula and try out some theories for it. Currently she'd made about 20 liters of it and was storing it her apartment. She'd made Anna her own batch so she'd stay out of the larger supply. That was something Henrietta learned the first night after their weekend with the neighbors. Anna had drank almost two liters in the span of 24hrs and kept bringing men and women into her room. Henrietta had come home multiple times the first day to find Sonya in place of Anna eating out an all-girls high school student or banging a UPS worker. The girl was insatiable and was severely lacking the self-control that Henrietta was forcing herself to maintain. If she hadn't been so naturally smart and not in need of studying, she'd be in danger of getting kicked out of the grad program. Henrietta was pretty sure Sonya had fucked two of Anna's professors this week but otherwise she'd been going to class sporadically and keeping up with the course load.

Henrietta packed up the new version of the Formula and carried the two heavy bags that were in back to the apartment complex she and Anna lived in. She couldn't wait to tell her roommate about how she'd improved it and for them both to try it out. As she fumbled with her keys in her door, she could hear commotion from across the hall. It sounded like Chuck and Dale were having some friends over. Henrietta remembered tonight was the night of the big game and she figured that's what they were all yelling about. She entered her apartment and found a surprise though: Anna was sitting with what looked like a large study group of girls from her biochem class all in their pajamas. Some, Henrietta recognized (Carrie, a frumpy blonde girl, Amy, a small petite Asian girl) some she didn't (there was also a chubby girl with her hair in a bun and an Indian girl who seemed extremely introverted). Anna smiled as she saw Henrietta with her large bags. She must have guessed they were filled with more of the Formula. 

"Hey, Henrietta!" Anna ran up to her roommate and gave her a hug then whispered, "I totally forgot about this study group sleepover! Sorry!!!!" 

When Anna pulled away she shrugged and sighed. Then... her eyes went wide as if she'd just had a revelation. 

"Hey girls," she said still looking at Henrietta. "Who's thirsty?" 

Henrietta could feel a tingle wash over her. She and Anna had talked about throwing a party and having some fun with the participants but she didn't think it would be so soon. She was a conflict of emotions. 

On the one hand, these girls had no idea what was about to happen... but on the other hand, Heidi's voice trailed off in her head, "Should be quite the party..."

Anna filled some cups with the Formula and handed them out to the girls. 

"What's this?" The chubby girl (who Henrietta found out was named Denise) asked. 

"Yeah" the Indian girl (Amrita) sniffed it. "Smells like... Capri Sun?" 

"Trust me" Anna smirked. "You'll love it." 

Both she and Henrietta watched as all four girls drank up cautiously and then faster until they'd pounded the whole cup. Purple liquid dripped down their lips and cheeks. The two girls watched as the foursome began to pant and become flushed. 

"What... what was in this..." Carrie asked starting to blink faster and rubbed her neck and chest. 

Her pink two-piece flannel pajamas were looking like they were too hot for her. Suddenly her breasts started to swell underneath her top and strain against the buttons. Her hair went from dirty blonde to platinum and her features became sharper. She started to breathe faster and snarl a bit.

"What's happening to me!" She screamed and pulled her top open and started massaging her exposed breasts, pinching her nipples. 

Her ass expanded a bit as well, filling out the pajama bottoms and straining the elastic at the top. Carrie shoved her hand inside them and furiously started fingering herself as the changes continued turning her from a frumpy girl no one would look twice at to a gorgeous cornfed girl. 

"Did you do something to this batch?" Anna asked as she watched the others start to change as well... faster and louder than she or Henrietta ever have. 

Henrietta smiled. "Oh yeah. I tweaked it a bit. I got tired of masturbating in order to make the changes happen. There some other tweaks as well. You'll like them, I'm sure." 

The Formula seemed to be affecting the girls at a different rate. Carrie was almost fully changed while the other girls were still sweating and panting and watching in awe as their classmate was suddenly replaced by a completely different woman. Carrie let out a deep breath and licked her sticky fingers. 

"You girls... are going to love this..." She leaned back and watched for the show to start.

Amrita was next. The Indian girl's thick hair started to grow more lush and shiny. It was like a gallon of conditioner was being used in it all of a sudden. Her pock-mark ridden face from acne cleared up and her dark eyes went wide at the sensations running through her body. Her yoga pants started to ride up as her ass and legs became firm and toned. The ten pounds of fat around her weight was replaced by stiff abs and her breast strained to be free of her little pink tshirt. Her lips became full and her arms became athletic. She muttered something in her native tongue like she was praying to a Hindu god. She tried to pull her shirt off over her newly enlarged breasts and eventually just tore as it strained. The tatters fell to the floor as she stood up and stretched, the sounds of bones reknitting and popping into place was overshadowed by her pleasured sigh. 

No one had her speak until now and her voice had a sultry accent: "Now that was something..." 

She looked at Carrie's replacement and kneeled on all fours to approach her wet dripping pussy. 

"I want to taste that, my dear..." and began to gorge on the blonde's cunt.

The Asian girl, Amy, was wearing a night gown that she made short work of tearing apart. Her tiny frame and flat chest may have made the outfit practical but once the Formula took effect, the gown was nothing more than a tight top. It rode up quickly as Amy leaned against the couch, screaming and panting. Her little Hello Kitty panties were fully visible and were quickly stretching to their limit, almost becoming a thong. Her breast were now much larger and firmer and face skin was a tad darker. She pulled at her nipples over the top of her gown and pinched them, hard, sending waves of pleasure through her body. She immediately looked at the lovely girls next to her, eagerly engaged in intercourse and immediately joined them, suckling on the blonde girls tits and moaning as she fingered herself. 

The chubby girl (Barb, Henrietta learned later) took the longest to change. There was almost no reaction in her at first and she'd watched in awe as the three other girls had gone from everyday classmates to gorgeous sluts. Her sweatpants were becoming wet with her juices (she'd forgone underwear because it was usually too tight on her frame). She'd never been this aroused and was at a loss to calm down. Her heart was racing and she couldn't take it anymore and started rubbing her clit through her pant's fabric. She looked up and saw her hosts doing nothing and wondered why Henrietta and Anna just staring at them and smiling. She wished she could join in with the other three girls but she was so confused and didn't think they'd take her the way she looked. It was so tempting though... the sweet smells coming from them and the sight of them were too much. She had to taste the girl who used to be Amy's pussy... it was right there wanting... Barb crawled over and started licking it and suddenly became ravenous for its juices. 

Henrietta and Anna just watched like they were observing animals in the wild. 

"Barb doesn't seem to be changing yet..." Anna noticed. 

"Oh she will" Henrietta nodded knowingly. "The Formula is already working through her, it just got distracted by the pheromones of the other girls. See?" 

She gestured and Anna noticed that Barb was starting to look like she was having a seizure of some kind. She'd stopped licking "Amy's" dripping pussy and she fell backwards and started gasping. The other girls stopped what they were doing and looked at their friend quivering and sweating. "Carrie" stood up and stripped off the remnants of her pajamas. She stretched and walked over to Barb and stood over her. 

"Mmmm c'mon girls. Looks like Barb could use a hand..." and she leaned down next to her and pulled out one of Barb's massive tits taking it in her mouth. 

"Amrita" and "Amy" followed also stripping and climbing onto Barb. The Indian goddess straddled Barb's face and let the girl eat her dripping pussy while the Asian beauty pulled down the girl's sweats and peeled the wet area away to dine on the girls sopping wet pussy. The feeling of having her pussy eaten made Barb moan into the pussy that was over her face as she lapped at it and drank in the juices. She didn't even notice as her breasts started to quiver and round out nor did she notice that her legs were growing athletic as the fat seemed to move to her ass and then tighten into a firm, round posterior. When the Indian lifted off of her face, it was radically different: now more angular and with a lovely smile, her hair was also a dark red and the curls in it had straightened. She was a vision and was also hungry for more. 

All four girls looked around the room and were slowly coming out of their haze of arousal. 

"Mmm that was fun. I'm by no means done, though..." the girl that used to be Amy was still having fun pinching her nipples. 

The trio finished disrobing the girl that was once Barb and they stood up to stretch and feel more familiar with their new forms. It was then that they noticed that Henrietta and Anna were no longer there and had been replaced by a naked Heidi and Sonya. 

"Mmm" The Indian bit her lip at the sight of the duo. "You both look lovely." 

She walked over and kissed Sonya deeply running her fingers through the Latina's gorgeous hair. 

Heidi was loving this. She now had five gorgeous horny playmates and they were all reacting well to the new batch of the formula she'd influenced Henrietta to create. By mixing it with properties from other drugs like Ecstasy, she'd managed to make it stimulate a woman on its own thus taking away the annoying need to be initiated. Now the changes were almost instantaneous. She'd also boosted the aroma drivers to make the pheromones the new girls produced even more powerful and dominating. Lastly, she'd removed the trigger to change back after having an orgasm. The only way to change back now was to sleep and let the Formula run its course. Fortunately it would take a great degree of fucking to make these girls pass out. She'd dubbed the four Blondie, Yumi, Asha, and Ginger and the girls didn't seem to care as long as they could play with their new friends. 

The next hour was a haze for all six girls. Positions were switched and the amazons pawed at each other in a pile one minute and then took turns worshiping a girl the next. Heidi routinely took a break to watch all of them and play with herself. It made her feel like a queen with her new subjects and the power she'd brought them to be their fullest potential. The screams and moans eventually became so loud that Heidi wondered how long it would take for the men next door to notice. It turned out not long at all as she started hearing pounding at the door that sounded like it was going to eventually be broken in. She left her girls in the throws of passion and opened the door to see four strapping specimens. It looked like Chuck and Dale had two friends, a young black man and a blonde freshman who looked like Chucks younger brother. The men were panting and looked like wild animals in heat, ready to attack something and fuck it uncontroably. Heidi smiled. The pheromones of six subjects had wafted across the hall and stirred the urges in these four to the loss of all faculties beyond satisfaction. She leaned against the wall and opened the door, inviting all four men inside. They ran in, pushing each other aside and stripping off their clothes to find the source of their stimulation and found the five other girls writhing on the floor. Without warning, they each found a girl to mount. There were no words spoken by the men, just grunts and growls as they pulled at the hair of their chosen subjects like they were cavemen taking a mate.

Asia eventually tired of the younger man and pulled off of him to face him and let him cum on her chest. Heidi reasoned this was the young mans first time with how fast he'd cum. Yumi didn't seem to care as long as she could spread his sticky seed all over her luscious tits and lick it off of her fingers. She got the young boy hard again in no time by stroking his member and biting his earlobe. The boy looked so lost and confused by once she'd whispered something in his hear, the lust was back in his eyes and he was mounting the girl again in missionary and pounding her hard and deep, her legs over his shoulders. 

Blondie was loving Chuck inside her but she wanted more. She nodded to Sonya and the Latina pulled off of Dale and let the young man stand in front of Blondie so she could suck while she was being fucked. The two roommates were literally wrapped in fingercuffs with the insatiable blonde between them. 

Sonya went and joined India who was taking the black man's cock inside her. The look on her face was pure ecstasy as her pussy was being stretched by his extremely large member. Sonya sat up on the couch and spread her legs, giving India access to licking her dripping cunt and the cum inside from Dale's first load he'd let loose inside her. The mix of juice and cum was so delicious that India would almost forget the black cock pumping in and out of her. Almost. 

The girls left out from this were Ginger, Asha, and Heidi, not wanting to see them left out, motioned for them to come to her and lick her tits and pussy while she watched the display happening in the living room.

She moaned and sucked her fingertips looking at what the Formula had wrought: men turned into sexual beasts, women turned into insatiable love goddesses... What would happen next, she wondered? What other fun could she get into with this lovely concoction?



Dr. Jekyll and Ms. Heidi Ch. 03



Henrietta Jekyll had been having quite the semester. With the discovery of the Formula, she had gone from shut-in lab rat to full on sexpot and had managed to turn not only her roommate, Anna, but also four more formerly-wallflower girls into horny, slutty and sexually-ravenous amazons. The changes were never permanent (much to Henrietta's disappointment) but the experiences during them were always satisfying.

At least, she thought they were. It was beginning to get harder to see where Henrietta stopped and Heidi began. She found herself working harder and harder to create versions of the formula that required less and less effort to change. Anna had been more than encouraging of this, as she relished her alternate personality, Sonya, almost more than Henrietta. While Henrietta had tried to be more strategic about her usage, Anna was seen less and less around the apartment and Sonya had almost completely supplanted her. The other girls that had been turned: Carrie, Amy, Amrita, and Denise (or Blondie, Yumi, Asha, and Ginger, in their respective "other" bodies), had been coming in and out of the apartment regularly to gather more of the Formula for themselves. Each time one or more of them had arrived, they'd found a waiting Sonya, hungry for a playmate. It had taken all of Henrietta's willpower to not join in, but with the year drawing to a close, she had to focus on her studies. 

The class she was most worried about was chemistry. Her professor, Dr. Nolan, was a stickler and not about to do her any favors. Her missing out on a lab here and there due to Heidi activities had severely hurt her grade in his class and it was a requirement for her advancement in the program. Not only that, but Dr. Nolan was also her faculty adviser and had begun to question what she had been spending lab resources and so many requested private hours on. She was discouraged to discover that he'd sent her a request to meet with him Friday afternoon to discuss. In one of the brief moments when Anna had been present, she'd suggested, "you could always just send Heidi. That's how I've managed to stay out of trouble." Henrietta had been tempted but just couldn't wrap her head around seducing Dr. Nolan as a means to an end. Of course, she could also hear Heidi's voice whispering in her ear, "but it could be so fun, too"

She woke up sore on Friday morning and tried to absorb her surroundings. Her clothes were torn again and her body was covered in cum and pussy juices. To her right was Chuck, one of her neighbors, and to her left were Carrie and Amy, also in the remains of their clothes and also sticky with fluids. Sonya strolled through the apartment and was alternately doing pulls from a liquor bottle and then sliding it inside her wet pussy. "Unf. the best pick me up, let me tell you" she moaned. Henrietta gasped as she watched her roommates "other" form try to seduce her into more fun. "Don't you want some, chica?" Sonya licked her lips as she said the words. "I so do... wait...oh no" Henrietta looked at the clock. It was almost 10am and she still had to make it across campus for her meeting with Dr. Nolan. She scrambled to find clothing that wasn't stretched, torn, or defiled and managed to find a pair of sweats and a tshirt. She grabbed her purse and her purple Nalgene bottle off the table and almost forgot her keys. "Come back soon, baby." Sonya smiled and winked at her, once again sliding the neck of the liquor bottle inside her. "Have fun..." Henrietta felt flush as she inhaled Sonya's pheromones but knew her schooling was more important. She was curious why Sonya hadn't fought her harder though...

She arrived ten minutes late to Dr. Nolan's office. He was packing up for the day (it being Friday, she was his last scheduled meeting) and with so few people left in the building, she assumed he didn't have a need to stay. "I'm so sorry!" she apologized profusely and tried to catch her breath. 

"I don't know what to make of you anymore, Ms. Jekyll." Dr. Nolan shook his head and adjusted his tweed jacket over his dress shirt. "You have missed lectures, had middling test scores and barely turned in lab work on time. Oddly enough, you've logged more lab hours than anyone else in my colloquium."

He was a middle aged man of about 45 or so with glasses that sat on the bridge of his nose constantly. He had love handles around his waste and poor posture from always bending over a microscope. Henrietta had always found him the type of man that juts blended into the background. She wondered if that's what always kept him in such a foul mood. He didn't wear a wedding ring and she was sure he'd mentioned being married once. Nevertheless, he was nothing but disappointed in her now and the realization that she might have fucked away her entire education was starting to seep through the sensual fog she'd been living in for two months. 

"I...I don't know what to say, Dr. Nolan. I've been so busy working on my thesis project I just lost track of what was important." Henrietta undid the top of her purple Nalgene bottle and took a long swig to calm herself down. As she swallowed, she suddenly realized the liquid had a familiar taste... then she remembered Sonya's mischievous expression. "Oh no..." she thought.

"Please, may I?" without waiting for her to answer, Dr. Nolan took a swig himself and finished off the rest of what Henrietta was sure was formula-laced gatorade. She was petrified at this point. For two reasons: 1) it had never been tested on male subjects and 2) she hoped nothing would set off her arousal triggers and cause a change. 

For the next tense fifteen minutes, Dr. Nolan lectured Henrietta about her decline and her lost potential. She noticed he was getting more and more aggressive as he went on, punctuating sentences with a grip of his fist and failing to articulate certain words due to gritted teeth. He'd compose himself and then return to lecturing her, but every time he got more heated, she'd feel flush. She started to squirm in her seat a bit and realized that she'd forgotten underwear in her haste to leave the apartment.  

"I've just never seen a student fail so miserably at greatness! You could have been a star pupil and yet you're an unrepentant slacker!!" He was now full on angry and it was getting Henrietta incredibly aroused. Something about this man yelling at her, his anger palpable and threatening was making her pulse race and she bit her lip. 

"I'm so sorry, sir." She could feel Heidi start to control her choice of words. "What would you want to do about?" She didn't know if he would take the bait but in a few minutes, she might not have to care anymore. She started to feel the change happening, subtly underneath the oversized loose clothing. She was trying to also catalog the changes in Dr. Nolan while she could still focus. It looked like he too was getting bulkier under his clothing. He was now sporting a mighty erection in his slacks and she was pretty sure he didn't usually have a cock that big. His hair was also filling out where there used to be a bald spot on his head. He didn't seem to notice any of this happening and was continuing to get more and more aggressive in Henrietta's direction.

"All of you little whores. You dirty sluts with your priorities all fucked up. Leading men on and just looking out for your own *Rrr* satisfaction and needs *Grrr*" he was now grunting and becoming more angry. Henrietta was trying to keep her breathing calm to fight the change as long as possible. She needed to see what was going to happen and drawing it out in herself was also turning her on more and more. This man, timid and studious now turning into a raging angry beast was getting her more and more wet. She had to test a theory...

"Dr. Nolan, sir, do you want to punish me... here? In your office? I've been bad... I've been such a slacker... Don't you... don't you want to show me how angry it makes you? You know I've only made it this far because I'm a girl... that must... aggravate you even more than my having wasted your time this morning." Henrietta leaned back in her chair and spread her legs open. Her naked wet pussy had left a huge wet spot in her sweat pants. She could feel her slowly enlarging breasts and erect nipples stretching her tshirt. 

"Fucking *grunt* WHORE" and that was it. Dr. Nolan was gone and only this beast remained. He shoved all the items off his desks, papers and office supplies and pounded his fists against it. The act sent ripples through his body and he started to strain against his jacket which popped the seam up his back. He groaned and then grabbed the front of his dress shirt, ripping it open with buttons flying across the room. He reached across the desk and grabbed Henrietta's shirt then tore it open. That was all it took and her body suddenly finished its prolonged change to Heidi. She leaned forward and grabbed the desk and met his aggressive, neanderthal like face with her lips and kissed him hard, biting his lip and licking the sweat off his neck. Her tits were now back to their Heidi size and her metamorphosis had stretched the sweatpants to their limit, causing tears up the seams.

"mm hello there, Doctor." She slid off her torn sweatpants and stood up straight, stretching for his full view. "I'm what your student has been working so hard on." She brought her fingers down to pussy and twisted her nipple. "Won't you give me something to... work hard on, as well?" 

The thing that used to be Dr. Nolan walked around his desk and Heidi was taking into account the further changes that had occurred: His hands were larger and hairier as was his chest. His face was now a bit more handsome and it looked like he'd grown a few inches in size in height as well as...length. His legs were much more tone and he'd basically turned his slacks into shredded paper, with his cock yearning to be released. He walked closer to her and sniffed up her arm and her neck, taking a long lick of her neck. She ran her hand up his inner thigh and gently stroked his bulging erection, moaning at the thought of what he could do with it.

Suddenly, he spun her and shoved her to the ground. "Suck." he grunted, ripping open what was left of his slacks. Heidi shivered from the sight of his member and the musky scent coming off of it. Never in all the men she'd been with recently had something made her quiver and drip like this. 

"Yes, sir." She took a long taste of it and let it inch into the back of her throat. The taste of his skin and the drops of precum dripping down her throat were sending the normally in-control Heidi into a furious talespin. She wondered if this was similar to the effects her pheromones had had on other people when she was in control. The towering Doctor gripped her long, gorgeous hair and grunted in satisfaction. "Good. Good girl. More. Fuck now."

She didn't want to stop, though. She couldn't. She kept licking it and rubbing against the side of her face and lips. "More please, sir. More please? I must...mmm... more" and she licked up every drop of precum she could until the Doctor grew angry at her not following his orders.

"NO! NOW!" and he pulled her up by her hair and spun her around, then pushed her over onto the desk. Heidi was disappointed until she realized what was next and suddenly felt his massive strong hands on her hips followed by a penetration the likes of which she had never known. It was like with each thrust he was growing in girth. She could feel herself growing more and more slick against him and that just made him grow thicker inside her, straining the walls of her slippery cunt. 

"YES PLEASE MORE, SIR! PLEASE" She screamed, growing hoarse with each moan. The Doctor was pounding harder and harder and was pulling her hair while pounding harder. 

"Take it. Take all. More. Whore take." It seemed hard for him to form sentences but he grunted words anyway and Heidi obeyed. She couldn't resist the smell that was filling the room and it was making her weak in her legs. She could feel him getting closer and knew a release was soon, thus she fought off her own orgasm as long as possible but it felt like it was going to powerful.

The Doctor was close and Heidi began to feel him loosen his grip. She knew this was her chance and she slipped out of his mighty hands, forcing herself to pull his cock out of her because she wanted what came next so badly. She dropped to her knees and got under his cock. "Please cum all over me. Please, sir, PLEASE!" she had never begged before and it felt right with this perfect beast she was servicing. He grunted and started to finish, massive amounts of cum cascading down her face and lips, while her hands grabbed every drop she couldn't with her tongue. Heidi swallowed all she could on her own and then felt it gagging up like too much of a milkshake. She was on her knees and rubbing her cum-covered hands all over her mouth, savoring every drop and then licking what was left off of the Doctor. She took a free hand and started massaging her sensitve pussy, fingering herself to a finish as ringlets of her own saliva and the Doctor's perfect cum drooled out of her mouth. 

"That was...perrrfect..." she moaned and collapsed on the floor. Her body quivered on its own orgasm, and she lied on her back, breathing heavily and feeling a change back to Henrietta imminent. Through half-open eyes, she looked up and saw the Doctor look around, still looking hungry for more. 

In the hallway, a young blonde coed was looking for her professor's office and getting very frightened by the noises coming from the corners of the now empty building. She'd hoped to catch her professor before they'd left for the weekend but had realized she'd just missed them while trying to find their office. She was drawn to the sounds at the end of the hall, though, in which had sounded at first like yelling and then thrashing and had now began to sound more like love-making between animals. She'd made out a woman's voice but the other participant sounded more like an ape trying to form sentences. As the coed had gotten closer to the office door, she could see a silhouette of a hulking shape come closer to the door. She stepped back in fright when the door had flung open and revealed the most hulking man she'd ever seen. His shoulders were broad with a ripped tweed jacket hanging off of them and his shirt was ripped open with a massive eight-pack hairy chest in full view. His face was chiseled and handsome but with a primal look in his eyes. There was a waist of what had probably once been his pants and were now almost shorts. his hands were larger than most men and his forearms were as hairy as his chest. What really drew her eyes was massive cock that hung out in front of him. She'd seen her fair share before coming to university but nothing this thick and long.

She was surprised she wasn't shocked at the sight of this creature but something was possessing her... his smell... musky and pungent. Like body-odor but thicker in the air and it was making it hard for her to think straight. Suddenly she felt almost euphoric. Not drunk, not high... but foggy. She couldn't think straight but she could feel her body becoming tingly in her chest and crotch. She had never been turned on like this before and she stumbled backwards and lost her balance. The shorts she was wearing were becoming uncomfortable and she slide them off and her sopping underwear as well. She lowered herself to her knees and started to feel her wet pussy. She could hear herself panting and gasping. Her mouth was drooling and she couldn't take her eyes off of the man's (was he even a man?) cock. He advanced closer, grunting and letting out angry breaths through his nose. She eagerly took his cock in her mouth and the taste...the precum... she came just having it pass her lips. Her body shuddered and she moaned around his member. He gripped her head and she began furiously fellating him like she'd never wanted anything else in her life before. After a few minutes, she was lifted up by her hair by the brute and thrown against the lockers on the wall. She could feel him enter her and she was so lost in ecstasy that she didn't want this moment to ever stop.

It had been almost 20min since Heidi passed out that Henrietta awoke to find herself naked and her mouth full of the tastiest fluids she'd ever had, piecing together the events that must have transpired. The Doctor was long gone at this point and she grabbed her bag, pulling out a change of clothes. She grabbed the Nalgene bottle of the formula too to make sure nothing else happened. As she ran down the hall, she saw the creature that was once the doctor fucking a young coed against a locker. The girl was in rapture, her body quaking as the Doctor was pounding her. 

Henrietta formulated that the Doctor would change back soon, but needed his fill first. Thanks to his pheromones, but she needed to make sure he didn't get too carried away. She walked up to him and tapped his massive shoulder. 

"Doctor, you should come with me. More whores for you, this way." The Doctor grunted and then let go of the coed. She slid down the lockers to her knees, moaning a sigh of pleasure. She wouldn't remember much, probably. Henrietta wrapped the doctor's jacket around his waist and led him by his massive hand to her apartment as quickly as she could.

When Sonya saw them enter, she smiled as big as her lips would allow. "Looks like you have a story to tell..." but it would wait. There was fun to be had.



Dr. Jekyll and Ms. Heidi Ch. 04



It had now been a full month since Henrietta Jekyll had happened upon her version of her ancestor's formula. The purple concoction had been the source of much enjoyment for her and roommate, Anna, with both of them now engaging in many sexual misadventures and further discoveries as their alter egos, Heidi and Sonya. They'd turned four more girls into sexually ravenous Amazons such as themselves and Henrietta had also discovered the effects of the Formula on men through her professor accidentally taking a large dose of it and becoming a hulking alpha lover with some very surprising side effects: bodily secretions that functioned as a powerful aphrodisiac for women around him.

Henrietta hadn't really investigated if she possessed these in her Heidi form but was beginning to get very excited about the possibilities with them. She had noticed that Heidi and the other Amazons emitted a powerful pheromone that seemed to affect men around them but she hadn't noticed any reaction to fluids or secretions. The pheromones had basically just drawn men nearby into aggressive lust and she wondered what would happen if she'd pushed that even further. 

After two long nights in the lab, she'd cultivated another revised version of the Formula. The usual purple hue of the liquid was now startling light blue. She looked at her secure refrigerated vault with her backup supply in the standard form and felt confident that if there were any issues with this new batch, she would have ample reserves to fall back on. She poured her new blue version into four water bottles and placed one in her purse. She wanted to run multiple tests so she'd need more for later. She then checked her backpack and made sure she had a few changes of clothes since Heidi was prone to basically bursting out of Henrietta's outfits and leaving her with nothing to wear when she'd eventually change back. Currently she was wearing a conservative outfit of a pencil skirt and a red polo top with her lab coat over it. She looked herself over in one of the mirrored walls and shrugged. Her normal form wasn't much to look at. It's why she had become so enamored with becoming Heidi and experiencing life and pleasures as her. Sometimes she wondered where she stopped and Heidi began... if that personality had been her repressed longings, held at bay by a lack of confidence and fear. Whatever the nature of it, the results were the same: she relished everything about her liberated alternate self and so did Anna and the other girls.

Dr. Nolan, her faculty adviser who had taken the Formula by accident, had seemed wracked with guilt afterwards. He had apologized to both Henrietta and Anna after he'd finally changed back to normal (four marathon love-making sessions with the both of them later) and had complimented Henrietta on her accomplishments. However, he had encouraged her to be wary. "Other people might find this discovery as a means to corruption. Guard it and be watchful." He'd also promised her that her thesis grade was secure since he'd seen just what her discovery could do firsthand. "I'll help you write up the report myself" he'd promised. She had asked if he wanted any of the Formula for himself and while she'd noticed hesitation in his eyes, he'd eventually held fast. "No. I'm fine with just being myself for now. But I'd be lying if I said I didn't enjoy a respite as that... Thing." 

Henrietta shrugged off the memories. It had been an enjoyable Friday night but now she was living in the current goal: testing out her Blue Formula. She took a deep breath and poured the contents of the bottle down her throat. The taste was similar to the purple version but had a slightly sweeter aftertaste. She moaned about as she finished the bottle off and then licked her lips. She was excited for what her experiment could produce tonight.

Grabbing her backpack, Henrietta was about to lock up when she heard a sudden thud. She looked up and didn't see anyone elsewhere in the lab. "Must be on a different floor, " she thought and gathered her backpack and her other bottles of the Formula (one more of the new batch and some of the old for Anna and herself). 

The hallway of the science building was only slightly populated this evening with some students already having left for fall break. The campus would only be sparsely populated this weekend which was in part a relief and a disappointment to Henrietta. A relief since there would be less chance of discovery should Heidi and the others be unleashed on a willing populace but also disappointment because if they were, the pickings might be slim. She racked her brain to think of a proper place to try out her new creation as she walked through the halls and out into the evening. As Henrietta strolled, she reflected on more possibilities for her creation and if there was a way to make Anna permanently into Sonya. It was obvious she enjoyed being her more while Henrietta was fine with having both sides of her life. The other girls had started to treat further doses as more of a recreational activity than an addiction but Anna... she was so said being herself and would sleep for almost a full day when she'd change back. Henrietta made a note of this for later as she had finally found a possible destination: the campus gym. An evil smile crept across her face as she put a plan together.

First, Henrietta went to the locker room securely stored her bag in a locker. She also took off her lab coat and hung it up. She wouldn't, however be needing to change out of her clothes. She looked around and saw one or two other girls showering and changing. They were all very attractive to her pre-Heidi libido and she was starting to feel her breathing hasten. Like before with Dr. Nolan, she focused and tried to keep the change in check so as to complete her plan.

She sat, patiently on one of the benches watching as more and more of the girls were changing into their gym clothes, but more importantly, she eyed the sauna door off to the side of the locker room. She counted almost five girls in there now, all with towels wrapped around them and conversing about trivial topics. A smile crossed her lips as she finally couldn't take it anymore. She was ready for the next phase of her plan. With that release of her self-control, she let her body complete its foremost desire and the changes were upon her in minutes. Heidi's larger, stronger body tore through hers and pushed the pencil skirt apart into an almost loin cloth. Her larger breasts pushed against the polo and Heidi's stronger hands pulled the cheap cotton apart at the front creating a cleavage and midriff revealing top. As the Amazon shook her head, Henrietta's bun cascaded apart from a blond knot into a mane of dark brown hair. Heidi stood up and slid off the now soaked and stretched underwear Henrietta had forgotten to remove. She also kicked off her heels and took a long stretch, enjoying being out of her "cage" once more. 

"Now," she smiled fiendishly. "Let's see how much fun we can have."

She inhaled deeply and could smell her new musky scent coming off her body. It was a thick aroma that was more of a pleasing smell than body odor but still as pungent and permeating her surroundings. Her body was also dripping with sweat and droplets were running down her enlarged cleavage as well as her long legs. Among those droplets of sweat were also drops of vaginal secretions that were about what you'd expect from an aroused creature like Heidi. She took one of her long fingers and ran it up her inner thigh, taking a taste. It was sweet and almost like citrus. 

With a confident stride, Heidi strolled towards the sauna door and opened it. The inside was a dim room with wooden paneling along the walls as well as wooden benches around the perimeter. In the center was a long double wooden bench where patrons could sit almost back to back if they'd wanted. Steam and moisture hung in the air and it was almost twice as humid as the locker room. This would do perfectly. 

None of the girls noticed Heidi enter and then close the door behind her. She examined all five of the girls like prey and bit her lower lip examining their young forms, hidden semi-securely under white cotton towels. Each girl looked half asleep enjoying their sweating and relaxation. A young blonde girl in the corner was the first to notice Heidi after sniffing the air for a few seconds and then opening her eyes and looking around, settling on the stranger and her disheveled appearance. The young girl had short hair in a bob and looked longingly towards Heidi. There was no registering of shock or confusion, just hunger and lust as she drank in the smells and pheromones coming off of Heidi's body. The bob girl stood and walked across the floor, her legs slightly shaking with each step. Her towel started to become unfastened but she didn't seem to notice. As she walked towards Heidi, her balance gave way and she lowered herself to her knees. Heidi approached her and dipped two fingers into her own pussy, getting her hand good and sticky with juices. She ran them across the girls lips and watched for the results. The bob girl gasped started masturbating furiously, plunging fingers inside her wet pussy and running a hand over her sweaty chest. Her will was completely gone and the only thing she seemed focused on was pleasure as her eyes followed Heidi around the room.

The noises the bob girl started to make alerted the other girls in the sauna and they began to look around, slightly confused until the aroma hit them as well. One black girl leaned back against the wall she was sitting at and stared in still wonder at Heidi. This was Heidi's next subject and the Amazon leaned in and took the girls chin in her sticky finger. "Go on... lick my neck, my dear..." and the black girl complied, taking a long taste of the perspiration that was coming of Heidi's neck. Heidi rewarded the girl with a taste of her fingers as well and the girl took the resulting juices in like the first taste of water she'd after a week in the desert. Using her fingers as bait, she drew the black girl up off the bench and towards the bob girl on the floor. She covered her pussy in more juices and rubbed them over both girls lips and watched as they hungrily licked sweet secretions off of each other lips. 

Two brunettes, one with tattoos and the other with a pony tail had undone their towels watching Heidi with bob girl and the black girl and were now rubbing their chests and panting heavily. Heidi peeled off her top and walked over to both brunettes. She had a theory to test and sure enough, as she brought both of her breasts to the girls lips, small droplets leaked out of her nipples into their mouths. Nothing like full on lactation, but slight sweet secretions that the girls were lapping up like hungry dogs. The girls repositioned themselves for maximum results and moaned around Heidi's tits. Heidi threw her head back at her sensitive nipples being licked and nibbled by both of the girls. It was incredible and she was relishing the noises they were making. 

The last girl in the room, an athletic and freckled redhead stood up and approached Heidi from her right. The girl was already naked and she looked almost panicked and was breathing labored. Heidi noticed the girl's gold cross around her neck.

"Mmm you're a good church girl, aren't you?" she smiled as the redhead nodded and ran her hands over her body, gripping her own breasts and looking into Heidi's eyes with deep need.

Heidi took a some more of her secretions and spread them over the brunette's faces absently. The two brunettes rubbed the juices over their lips with their hands and then began to make out like the black girl and the bob girl had, with hunger and abandon half to feel pleasure and half to taste the other's lips. 

Heidi turned her attention to the redhead. "Come here, my dear." The girl struggled to stand with each step toward the Amazon and Heidi looked her over fully. Her freckles were dotted all over her chest and shoulders and her arms were toned and defined. She had a flat stomach and toned thighs with a small patch of red pubic hair. Heidi took the girls chin and looked deep into her eyes. They were not pained or terrified, but rather almost euphoric. Heidi surmised that the girl had not had that many experiences with sexuality and was overcome with her repressed feelings, buried deep for years. She saw something of Henrietta in the girls unfulfilled expressions. 

"Would you like to know pleasure?" She asked the redhead. The girl's face gave a confused look back but she managed an absent nod. Heidi smiled and lowered her to her knees. The girl broke eye contact with Heidi and looked at the black loin cloth of a skirt she was wearing. Heidi pulled it to the side, revealing her dripping pussy. The redhead gasped and pushed her hands down her own stomach towards redhead tuft of hair between her legs. She leaned in closer, extending her tongue like she was going to catch one of Heidi's droplets as if it were a snowflake in winter. 

"Good girl," Heidi cooed. "Go on..." and with that permission, the redhead began to slowly lick Heidi's slit, shaking with ever taste. The licks slowly turned into more aggressive tasting and then full on, however inexperienced, cunninlingus. The girl was an amateur but had enthusiasm. Heidi cooed as the redhead savored every taste of her. The other girls in the room had stood up to join them and were now each licking, sucking or tasting every exposed area of Heidi they could find. One brunette licked up her thigh while another tasted her neck from behind. The bob girl had positioned herself to enjoy the secretions from Heidi's nipple while the black girl licked Heidi's forearm before tasting the free nipple. The redhead was close to a personal climax and was moaning into Heidi's pussy between licks. Eventually, Heidi let the other girls have a taste and each rotated in as another collapsed onto the floor in climax. The humidity combined with their arousal had made the room almost suffocating for them and all but the redhead passed out once they were done. Heidi looked at the girl as she stood and regained her focus. Climaxing had cleared her head momentarily from Heidi's pheromones. 

"Did you enjoy that," Heidi asked.

"I've never... I didn't know... I just hid behind everything told to me forever... I didn't know it could be so good..." the redhead ripped her cross off her neck and held it in a fist, angrily regretting years of holding back from what she obviously enjoyed. 

Heidi took sympathy on the poor girl. She wanted to be free, just like Anna and Henrietta had. "I'm going to give you something" and motioned for the redhead to follow her. They exited the sauna and went back out into the locker room. Heidi unlocked Henrietta's locker and took out her backpack. Inside she found the extra bottles of the new blue Formula. She handed one to the redhead. 

"What's your name?" she asked her.

"Mary" she replied. 

Of course it is, Heidi thought. "Mary, I want you to drink this, right now and then tonight I want you to go out and enjoy yourself. Take in a night of freedom. If you ever need more, call this number and it'll be waiting for you." she handed Mary a piece of paper with Henrietta's cell phone. "Never, ever ever hide what you want from anyone." 

Mary nodded and undid the top of the bottle. She slowly drank the contents and then drank faster with each gulp. She stumbled back for a second and regained her balance before Heidi kissed her and massaged her clit furiously. This brought on an instant change in the girl that saw her painfully but with slight pleasure, into an even more toned Amazon. She grew a whole foot with her hair becoming straighter, her freckles clearing up almost completely, and her skin looking blemish free and nearly porcelain. She was strong, as well, with the athletic strength of Mary now almost doubled. 

The two girls kissed again and then what used to be the timid form of Mary, put on sports shorts and a tank top and smiled a mischievous smile. "Thank you." Heidi smiled back as she watched the girl walk out into the gym. While she changed back to Henrietta, she heard moans and gasps of a veritable orgy happening.



Dr. Jekyll and Ms. Heidi Ch. 05



As Henrietta Jekyll finished transforming back from her hyper-sexualized Amazon form of Heidi, she smiled a sheepish smile. She was recounting how Heidi had taken pity on the redheaded Catholic girl, Mary, and given her some of the new version of the Formula that had driven Mary and four other girls into a state of sexual frenzy not twenty minutes ago. The moans and cries from outside the locker room had died down and Henrietta was curious what had all happened. She slipped on a pair of sweats and an oversized tshirt and walked through the door. The first thing that hit her was the scent of formerly-Mary's pheromones. Like Heidi's had been, they were sweetly pungent and it took all her self-awareness and control to resist them. Her legs trembled and she was immediately hazy and wet but focused and kept on her feet. She spotted the Amazon Mary riding a ripped frat boy on the weight bench while she fingered a blonde coed to her left and felated a large black student to her right. She looked in pure heaven and lying around her were sweaty post-coital former partners, breathing heavy and watching her like some sort of goddess being worshiped. Henrietta resolved to hurry out of there before she was forced to join in but knew this wasn't the last time she'd see Mary. Outside the gym she inhaled fresh air and let out a sigh. She hoped she wasn't done with all of this for the night. It had been too much fun so far.

 Dusk was settling over the quad as she strolled across campus. She noticed a few students commiserating on blankets, some reading and studying, others just listening to music and absently texting. The section of the quad near the gymnasium was known for being a secluded spot that students took advantage of regularly for peaceful studying and (usually after nightfall) exciting rendevous. There were no dorms that looked out from that area and no viewpoints from the gymnasium that could spot you. Alternately there was a gorgeous view of the hillside and campus security had a callbox nearby to alert them should you need help. 

 "Hey, stranger. Long time no see." Henrietta looked over her shoulder and saw Carl, her ex-boyfriend leaning against a tree in the quad near where she was walking.

 "Oh. Hi, Carl. Uhhhh..." Henrietta was at a loss for words. She'd almost completely forgotten about Carl in all of the insanity of the last few weeks. Ever since that first night and that first change into Heidi, she'd totally blanked on getting back in touch with him. 

 "What have you been up to?" She was suddenly nervous. How much did he remember and where had he been all this time?

 "Well, actually..." He sauntered closer to her, his hands in his pocket. He had a smile on his face like a fox. She was slightly uncomfortable. "I've been watching you. You and Anna and all your little friends. That was some crazy stuff that happened at your place homecoming week, right? All the neighbor guys and your slumber party. Also you and Dr. Nolan? I mean, now THAT was nuts." 

 Heidi was suddenly nervous. He knew everything. "What do you want, Carl?" She looked him sternly.

 "Oh I already have what I want, Henrietta. I've got everything I could possibly want." His smile got bigger and suddenly Henrietta knew why. She took a step back and realized his chest had started to get slightly bigger, filling out his sweater more. His posture had become more rigid and his breathing was deeper, like that of a bull. She knew what was coming but fortunately, she was prepared too. 

 "Nice try, Carl," She smiled back with the same sly grin. "But this isn't my first rodeo." She took out one of the bottles of blue formula from her bag and downed it quickly, almost choking on the sweet contents. Carl looked at her quizzically. Obviously he hadn't seen the new batch in action yet which means he wasn't at the Gym. He must have only gotten a hold of her older batch after she'd left the lab tonight.

 "Hmph. Hhhr." He was already close to full on changing but that would be fine because so was Henrietta. She had kept her arousal heavily at bay from the gym and when combined with the Formula she was just going to let it happen.

 "Witnesses be damned," she thought. "I'm going to show this shit who the bitch is." 

 Henrietta's changes were swift and smooth. The oversized shirt suddenly held her larger frame and breasts with ease. The sweatpants filled out with her augmented curves and her hair was out of its ponytail and feeling loose. She inhaled deep and looked at the creature that used to be Carl. He was quite a catch. Must more handsome than the Doctor with the tatters of his sweater hanging off of him and his slacks reduced to shreds. His bulging erection definitely drew her attention, as did his pheromones and musky scent. Unlike her experience with the Doctor, she was more in control this time and she could tell Carl could resist her more than other men had, but with her increased scent from the new batch, it was definitely causing him trouble.

 "Mine. Want. Take. Fuck." he advanced toward her gripped her shoulder, kissing her groping her clothed butt. She had to admit, it was quite arousing. If he'd been half this good when they were together, she would have dated him longer. Heidi noticed he'd started to drink in her scent more and more, licking her neck furiously and grunting while he humped up against her. She relaxed and let herself take his in as well and moaned into his ear. 

 "You want me, huh? Gonna have to show me a little better, big boy." She shoved him back hard and slid off her sweatpants revealing herself the hungry alpha male that was once her useless ex-boyfriend. The pheromones she was putting out were even more intense open to the night air and that was all it took to beat the creatures resolve. Carl's hulking form dropped to its knees and gripped Heidi's legs, ravenously devouring her pussy and grunting in hungry gulps. Heidi became awash in his pheromones as well, losing concentration from his expert skills eating her out. She stumbled a bit, steadying herself against his shoulders. Between gasps, she looked around for the first time since approaching the secluded patch of grass and realized what their combined pheromones had unleashed. All around them, couples were stripping off their clothes and fondling themselves or fucking each other. Two girls who had been studying together were now each barely clothed and 69ing furiously, dripping and drooling on each other. To their right, a couple who had been texting a few feet away from each other were now engaged in wild groping, the girl's hand in the boys pants and his hand also in hers, they barely registered the other people in wild copulation around them. There was also an Indian girl who was closest to Heidi and Carl who was on her knees lost in hungry lust watching their actions. This gave Heidi a devilish idea and she grabbed Carl by the back of his head and pulled him away from her dripping crotch.

 "Come here, big boy. Let's bring in a ringer." She motioned towards the Indian girl and like a dog spotting a bone, Carl became enamored with his potential toy. Heidi leaned back into the grass as Carl reached out and grabbed the girl and tore her leggings open then bent her over onto all fours in front of Heidi's waiting pussy. The girl took every inch of Carl's thick member and gasped followed by a moan of pleasure as she drank in the aroma coming off of Heidi. She licked her slowly and then faster with abandon as Carl pumped in and out of her aggressively. Heidi could feel the girl moan into her and she gripped the dirt, enjoying the sensation. She could feel the Indian girl cum loudly and that sent Heidi over the edge as well. The sounds of the orgy around them was like an orchestra of pleasure to her. 

 Once Carl had finished with the Indian girl, Heidi wanted her turn and rolled onto her knees, presenting herself like an animal in heat to her former lover. He met her request and bent over her, gripping the dirt just like she was, both their knees digging into the grass and they loudly showed their onlookers what real pleasure looked like.

 The duo rutted for what felt like an eternity, wave upon wave of pleasure pouring over Heidi and Carl both. They had ripped up the small patch of grass they were occupying and when they finished, the whole space looked like a pagan sex orgy had taken place. Carl had finally passed, still inside Heidi. She slid off of his member and rolled him onto his back. Around her, the small group that had been under the spell of their pheromones had started to regain their senses and frantically apologize and gather their things, running off into the night to try to figure out what had happened. Heidi could feel the change back to Henrietta coming and grabbed her shirt and sweatpants, ready to put them back on as soon as she'd changed back. As she was getting dressed, she suddenly had a devilish idea. She walked over the campus security phone and called the office, reporting a student that had been wandering around campus, drunk and naked, throwing himself at female students and chasing them. She said she would be happy to report him from a lineup and that there were other witnesses. She could feel herself changing as she finished the call and got off the phone in a hurry to avoid her voice changing mid sentence. This would undoubtedly get Carl expelled if not arrested, she thought. That would definitely keep him out of her hair for good.

 Henrietta was back to normal and felt a wave of relief while she watched from afar as the campus police aggressively detained Carl. He definitely looked like a drunk sex offender with his clothes all off of him and his body all dirty. No one would believe his story if he tried to tell it. This coupled with other stories she'd known about him from before they dated would finalize his time as a threat to her.

 She walked back to her apartment with a spring in her step. As she climbed the stairs, she saw a number she didn't recognize leaving her a text. "Hi, this is Mary. I was told to text this number if i needed more of that stuff. Thank you again. please text me back so we can meet." 

 "Hmph," Henrietta thought. "That sure was fast." She surmised that Mary had changed back by now and was in need of more of the Formula to keep her night of freedom going. 

 She opened the apartment door and dropped her bag off in the kitchen. She put the liters of the classic purple batch of the Formula on the shelf in the fridge and kept one bottle of the blue out to give to Anna. She knew she'd want a crack at it soon. It was at that point, she realized Anna hadn't greeted her when she came in. She looked around the mess that was their apartment. It was a disaster from all the sex and lack of attention paid to its upkeep. She could see a light on in Anna's room and she knocked before entering as a courtesy. She found Anna lying on her bed facing the wall, her nightgown hanging off of her curvy latina body. 

 "Hey, roomie." Henrietta raised her voice a few octaves for an offering of support. "You ok?"

 Anna rolled over and looked at Henrietta. Her eyes were red from crying and she looked incredibly depressed. "I can't take this anymore." she said, gasping a bit like she wanted to cry but was out of tears. "I hate who I am when I'm not... her!" 

 Henrietta walked over and held her dear friend and roommate. Anna had always had issues with herself. They'd had long talks deep into the night about how hard it had been for her to grow up in her family and with her small town of horrible residents. College had been an escape for her and as her parents had basically forgotten about her here, like a pet dropped off at the shelter, she'd gotten more and more withdrawn over the last few years. The amount of loans and scholarships she'd taken out for school had been the only thing keeping her going since she'd hate to waste all the money she'd spent so far. 

 "Can't I just... be.. HER.. forever?" 

 "I don't know, babe. I mean, are you sure that's what you want?"

 "I've never liked being me, Henrietta. You know that. I just... I love being Sonya. I love everything about it. I've never felt more alive. The other girls... they talk about their changes like a vacation or drug to take when they want to. They like going back to being themselves when it's over. Even you like being Henrietta more than Heidi."

 Henrietta took a deep breath. Anna was right. As much as she enjoyed being Heidi, she did also enjoy being herself and having that choice and that change of pace. Being boring wasn't so bad when you knew you could have fun when you wanted to, on your own terms.

 Suddenly, she had a thought. She'd need to run the numbers but...

 "I think... I think there's a way for this to happen, Anna." she looked at her friend hesitantly. "But I need to know. I need you to think hard and tell me the truth. Is this REALLY what you want? Can you make this decision and be final about it, if that's what happens?"

 Anna perked up and sat on the edge of the bed. "This is everything I want. I know I'd never regret. Please... Please make this happen."

 Henrietta went into the kitchen with a notebook and her laptop. She furiously ran tests on her chemistry software and jotted down numbers, doing quick math and then retyping equations. She opened up the fridge and took out a container of the purple Formula and took the bottle of the blue and put them both on the counter. In the cabinet was a large pitcher and she started pouring equal parts of both liquids into the pitcher, making sure the amounts were consistent. She added some water to cut it and then stirred the whole batch with a ladle. The liquid turned a deep maroon and then swirled until it was finally a luscious crimson color. She poured a tall glass for Anna and set it in front of her. 

 "This is it." she said. "There's no going back." 

 Anna took a deep breath and nodded. She brought the glass to her lips and gulped down the contents slowly, making sure not to lose a drop. Once she'd finished, Henrietta poured the rest of the contents of the pitcher into the glass. "You have to finish all of it." she instructed. Anna complied and after three glasses, was finished with the pitcher's crimson contents. Suddenly, she started gasping and then coughing. Henrietta helped her stand up right but Anna shoved her aside and stumbled towards the floor. She bent over and tried to recover on her own, her breathing deep and strained. Slowly, she recovered and then, as Henrietta watched, she slowly changed one final time. Sonya's body ripped through the nightgown and stood to face her. She looked as gorgeous as always but this time, there was less of an urgency to her, more peaceful. There was a hint of the pheromones coming off of her, too but not as powerful as the usual blue batch. Just enough to draw someone in but not enough to corrupt their will.

 "Hey there, chica." Sonya smiled, less intensely and more in a friendly, genial manner. "Thank you." She hugged Henrietta tightly and the two swayed a bit. 

 "Are you going to be ok?" Henrietta asked.

 "I am, baby. Truly, I am." 

 Over the next few days, Sonya packed up her things and withdrew Anna from school. She was immediately a hit at three local strip clubs and wouldn't be without money for awhile. She and Henrietta (as Heidi) had one last night together but instead of a frenzied, lustful orgy, it was a sweet and somber love-making session. In the morning, Henrietta awoke and found herself alone and Sonya gone for good. 

 It wasn't too tragic, though. Mary and Henrietta had it hit it off during the following weeks from their gym encounter. The Catholic girl with fiery red hair had loved her new alternate life as well as being able to still go to church and hang out with her friends like normal. She'd dubbed herself Cynthia ("I like how it sounds," she's said with mischief in her voice) and enjoyed her time in both of her identities as an almost therapy to her years of repression. After spending nearly every day hanging out (changed and unchanged), Mary moved in and became Henrietta's new roommate. Sometimes they'd even go watch Sonya at work and let the night take them places. 

 It had been an incredible year for Henrietta Jekyll. She knew her life was just starting to get interesting. Heidi would definitely not ever let the ride stop.