It was around noon when Jessica went to check for the mail. “Bill, Bill, Magazine…” she said trailing off, A package addressed to her had caught her eye. “Package!” She said excitedly. She grabbed it and ran back into her apartment. She found her girlfriend Stacy siting on the couch watching a tv show. “Stacy, it’s here!” Jessica said to her, opening it. Inside was a vial filled with a yellowish brown liquid.

About a week earlier, the two girls had found a site selling transformation serums for random things. Animals, pop culture, and even sexual things. A certain section on the site lead them to “make a Amazonian” with a character customization screen. This was a gold mine for the two girls especially Jesica since she always looked up to Amazonians. Ever since they finished puberty, they were always disappointed with how their bodies turned out. They were basically scrawny white girls. No breasts, no ass, short as can be, and barely any thighs. So they decided to splurge and order a serum after making one for thier dream Amazonian.

“So who should drink it?” Stacy asked looking at the vial. A small blush grew over Jessica. “If you don’t mind, could you drink it? I’ve always wanted to be loved by a giant Amazonian woman! Plus, since your shorter, it’ll be more exciting for you!” She offered.

“I’m only a couple inches shorter than you!” She said with a hint of anger.

“You’re 4’9” and I’m 5’ So it would be better for you. Please, do it for me?” She asked.

“…fine. Go get the room ready and I’ll find that outfit we made.” Stacy said walking over to the closet to find a fake tiger cave woman outfit. It was the closest thing they could find to the measurements they made for the form. The outfit was cheap and made of some sort of latex that would expand to fit a form as big as the new form. Stacy put her normal clothes in the laundry room and took the costume off the hook. She stepped into tiger panties with little fake rocks around her waist. She then put on the top that limply hung around her lack of her chest, a chill going across her nipples. “She just didn’t want to wear the costume. I’ll make her do it next time.” She said walking to the bedroom.

Inside, Jessica sat there on the bed waiting for Stacy to come back. “Are you ready for an exciting night?” She asked.

“Only one way to find out.” Stacy said downing the vial. Nothing happened for a moment before a wave of heat passed over Stacy. “We… we might need to open a window.” She said before she felt a stretching feeling on her crotch. Right above her vagina, A small rod started pushing out of her body. It grew until it was about 5 inches long and 2 inches in girth, the head split open, completing her new penis. Right below the new penis, two bubbles swelled until they became the size of small rocks, giving Stacy testicles.

Stacy let the costume snap back to her form, now showing the small bulge in the lower part of her outfit. “This is a rip off! It didn’t make me anything like what we made Fiona! It just gave me a small penis no body would want!” She exclaimed. Fiona was the name they chose for the Amazonian woman they made. “I should have beautiful long red hair! Not this short black mess!” She said and as if on command, her black hair started turning red from her scalp all the way to the tips. It started growing longer until it touched the floor, it would only reach her back when she was at full height. Followed by the hair, Stacy’s Snow White skin slowly became a chocolatey brown. As the skin change got down to her waist, Stacy pulled back the rock panties to see it wash over her new head.

“… it seems that the changes were just a bit delayed.” Jessica said as Stacy started feeling her new hair. Looking closely at her lover, Jessica saw Stacy’s blue eyes turn blood red. Her nose shrunk back into her face a little bit and her chin sharpened to a bit of a point. Stacy coughed a bit and said “Me should sound funny now.” Her voice sound like normal but just a bit deeper. “Must be instincts for me to speak like me doing now.”

Stacy stopped feeling her hair and looked at the floor as it started getting farther away. Her legs started stretching upward while Jessica stood next to her. Stacy quickly met her and kept growing. The rest of her body stretched to make her body stayed around the same size.

Stacy finally stopped growing at about 6 foot 6 inches, now much taller than her girlfriend. “Now My mussels should be growing in.” As if on cue, she felt a massaging feeling on her fore arm. It swelled as the mussels piled on. She flexed her arms to show off the new bludging mussels, bending down to let Jessica feel them. The new growth flowed into her hands as the became bigger yet remaining somewhat feminine. Her upper body grew a bit more broad, making the tiger top fit a little better. A tingling feeling grew in Stacy’s nipples as she started panting. The bulge in her panties started straining the garment as Stacy’s new breasts started growing in. They swelled and pressed against the top at only a C cup. The tiger top tried to contain the boobs as the continued to swelled. A small rip was heard when the growth stopped at double H cups. Stacy started feeling them with her strong, muscled hands as her belly fat sank back into her body. Soon the fat was replaced with a toned six pack.

Jessica crawled closer and started tracing the abs while starting at Stacy’s changing legs. Mussels and fat started piling on Stacy’s thighs, pressing them together and quickly giving her a thigh gap. Stacy’s ass also ballooned out into a tear drop shape as Jessica began to fondle it. Stacy’s Frey grew a little bit but were bigger none the less. Stacy flexed her new mussels as the tiger top snapped, the breasts being to much to handle. “And for the final change, you know what they say about big feet…”

Stacy felt a swelling feeling in her new cock. It soon became rock hard and continued to grow. The panties stretched to try and contain the growing rod failed as it grew to 2 feet 6 inches, her girth now 3 inches as well. Stacy’s small testicles started filling as they swelled to hold the sperm her new body was producing. Her balls started to hang a little bit in front of her vagina. They stopped swelling as the had reached the size of baseballs. Her pussy lengthen a bit to fit her bee body and her clit became a little bit bigger.

The final chance sunk in as a sort of mental change. They decided while making Fiona to give a personality. The company they got the serum from gave them a choice to make the transformer think they were the new personality but also have control in the back of their mind just in case. New thoughts washed over Stacy, thought of the tribe, hunting, finding a small mate to impregnate for the tribe. Stacy looked at Jessica as Fiona started to take charge. “Must impregnate…” Stacy said to herself, slipping away, fully becoming Fiona.

“Me Fiona, you… mate.” Stacy/ Fiona said, half to excite Jessica and half because of instinct. Jessica smiled and put her hand around the hulking mass’s new cock. One hand started fondling the orbs underneath and the other started simulating the thick cock in front of her. The giant in front of her started biting back a moan, unused to the stimulation she was getting. Fiona reached full mast while Jessica spit on it, getting ready to try and stimulate it with her mouth. She put her mouth around the cock and she learned that her lips barely fit. Jessica struggled to go further down than 6 inches.

Fiona started growing angry, she was close but this wouldn’t get her off. The Stacy part of her mind told her that they had selected that Fiona would be infertile. Fiona still thought her sperm was at the peak of fertility as she pulled Jessica off her cock.

“This too slow, me want Pleasure. Me want to feel you on me. Me stuff you on me.” Fiona said, moving Jessica around so that her vagina was lined up with her cock. “Get ready for Snu Snu!” Fiona said slamming Jessica onto her cock. Thankfully, Jessica’s entrance was already dripping from watching the transformation and from handing little Fiona. Jessica slid down the cock until it reached her cerix. Fiona got mad seeing as Jessica only made it down a foot and a half. “Must fill mate!” Fiona said moving Jessica up and down as a makeshift hand, Jessica meanwhile had came several times and was waiting to be filled with Fiona’s spunk. Jessica’s walls tightened around Fiona’s rod while it started twitching. Fiona released buckets upon buckets of cum into Jessica, filling her womb like a balloon. Soon, her stomach started ballooning out as Fiona pulled Jesica off her now deflated cock. Jessica later there for a moment, gasping from how much cum was in her. She pushed down on her bloated stomach to try and get some of the cum out of her.

Fiona took this time to lay down on the bed which creaked under her weight. “One final thing before Fiona change back to Stacy. Pleasure to lady hole.” She said in her Amazonian accent. She cup her testicles and moved them aside showing off her slick pussy.  Jessica quickly got to work, licking the Amazonian’s entrance. The Amazonia starting gripping the sheets, almost ripping them as Jessica continued. A large Amazonian wrapped itself around her cock and started jerking it off. Jessica started messing with Fiona’s clit as she started panting.  Fiona started shaking and moaning as her cock spewed another batch of cum. Jessica soon found her face covered by Fiona’s juices. Fiona started shrinking away, turning back into Stacy.

“Sorry… Fiona kinda just took control.” She said sitting up. “But you were right, that was amazing.”

“I’ll keep that in mind when you choose what you want.” Jessica said nursing her stomach.