"Alright pledges, after this last challenge, one of you will be joining the Theta Gamma Chi fraternity. The challenge is called top and bottom. Each of you will be slowly transformed. The rules are simple: one of you will be top, the other will be bottom. The top will keep their transformed body from the waist up for three weeks, and you get to join the frat. The bottom will keep the bottom half for six weeks and will have to perform a secret bonus task to join the frat. The challenge ends when one of you decides to be bottom. Any questions?" Preston, the frat leader, explained.

"Uh... transformed how?" Nathan asked tentatively.

"Good question. Any other questions?" Preston ignored.

"What's the secret bonus challenge?" Tyler asked.

"Well it wouldn't be a secret if I told you now would it?" Preston replied. "Alright. Pledges ready?"

Nathan and Tyler looked at each other, then the other frat boys, then at Preston and nodded.

"Good," Preston reached into a bag and pulled out two swim suits. "Go change and be back in five minutes."

"But... these are women's swim suits." Nathan pointed out.

"Clock's ticking..." Preston looked at his watch.

The two boys ran into the restroom. Tyler came out first wearing a yellow one piece that said "born for hell" on it. His package was clearly visible through the thin crotch strap. Nathan came out two minutes later wearing a red suit of the same type. His package was smaller but still visible.

"That was close Nathan, you only had twenty seconds left. Alright, now take a seat and let the challenge begin!" The frat boys cheered as the two pledges sat down on lounge chairs by pool.

After a second of nothing happening, Nathan spoke up. "Again, what do you mean by transformuuuungh..." He broke off into a moan as everyone watched his bulge shrink into his body.

Tyler watched it go, mouth agape, until his own dick began to invert. Before long, they both had clearly visible slits between their legs. Everyone watched as Nathan reached down to feel his new genitalia. As soon as his fingers touched it, he pulled back with a moan at the sensation.

"What the fuck is this!?" Nathan yelled, his voice cracking."You're turning us into bitches?"

"Well you'll only be half bitch in the end. You just have to decide which half." Preston snickered.

Nathan looked over at Tyler to see that he had a similar slit and his green hair was starting to lengthen. "Look Tyler, you've gotta take bottom now before we change too much. You'll still have a chance to join the frat with the secret bonus task. You can just wear sweat pants and nobody will know. I won't tell a soul."

"No way man. That bonus task could be anything. I'm not risking anything to get in to this frat." Tyler replied, his voice cracking as well.

"Well you're gonna have to because I'm gonna be top... ughnnn. Oh no."

"You sure you wanna be top with those pointy nipples Nathan?" Preston laughed. "Oh and it looks like Tyler might need a training bra."

Nathan looked over to see Tyler already had budding breasts, then down at his own chest to see his pointy nipples being pushed out by two mounds of flesh. They slowly grew out to A and then B cups.

"Tyler please while I can still hide these under a sweater."

Tyler looked over at Nathan and pointed at his face. "You can't hide that under a sweater."

Nathan whipped around to look at his reflection in the water. He almost didn't recognize the feminine face looking back. She had big glossy lips, long dark eyelashes and a button nose.

"Oh my god." Nathan touched his face. "I look like a slut."

"You haven't seen nothing yet." Preston assured. "Now it starts getting good."

As Preston said this, Nathan's hips began pushing outwards and his legs lost all their hair. His thighs and ass then began filling with feminine fat.

"Please Tyler I'm begging you! I don't want a fat ass!"

"I think the ass is the least of your concerns. Your tits are bigger than my girlfriend's." Tyler said in a totally feminine voice.

Nathan looked down to see that his breasts were nearly a D-cup. He grabbed one and it sent shivers down his spine.

"Nathan, if I were you I would take bottom now while yours isn't too big." Tyler told him. "Because I'm telling you right now I'm taking top anyway."

Nathan thought about it for a few moment, his thighs filling with fat at each passing second.

"No. I don't want a pussy for the next six weeks so you'd better get used to yours."

"Well it seems you two might need some motivation. I'd like you to meet our newest member of Theta Gamma Chi, Charlie Pullock!"

Nathan watched as a woman, er, man walked out of the frat house. He had a pink and black zebra print bikini top and the largest breasts Nathan had ever seen on any man or woman. They were each the size of basketballs. Charlie seemed to be untouched from the waist down, wearing men’s swim trunks.



“Oh my god… Charlie? Is that you?”

The buxom shemale nodded. “Wow you guys are turning out hot. If I were you I would take bottom now before you end up like Topher… poor dude’s ass is so fat he needs two movie theater seats.”

Nathan and Tyler looked at eachother, then down at their growing thighs, then back at Charlie.



“Trust me guys, er, girls, your asses are only getting fatter. Your tits are getting heavier too, aren’t they? Even if you end up being top at the end of this, the back pain will be unbearable.”
Charlie said cupping his enormous tits.

“What’s the bonus task if you lose?” Nathan asked.

“Sorry Nate, I can’t tell you anything about that. If I do, these guys said I get three more weeks with these jugs.” Charlie responded.

“Alright Charlie thank you for stopping by. Pledges, how about we flip over and show the boys what you’re playing to lose.”

Nathan and Tyler both reluctantly turned over onto their hands and knees. They were filled with embarrassment sticking their asses up for all the guys to see. Their asses kept growing at a noticeable rate, and soon their big bubble butts were pressed up against each other.



“Nathan, I’m telling right now I’m quite alright ending up like Charlie for a few weeks, but I will not be bottom. It’s your choice whether or not your ass will fit in the lecture hall seats for the next six weeks.” Tyler assured him.

Nathan was quiet for a moment before exclaiming: “Okay! I’ll… I’ll take bottom.”

As soon as he said this, he felt his muscles swell up in his upper body and his boobs shrink into muscular pecs. He felt Tyler’s butt shrink away from his as Tyler’s legs lengthened and his penis grew out of his vagina.

“You made the right choice.” Tyler said with his still feminine voice.

“I would like to proudly welcome Tyler Motley to Theta Gamma Chi!” Preston said with a round of applause. “As for Nathan, there is still one final chance for her to prove herself and join Theta Gamma Chi: by completing the secret bonus task.”

Nathan was nervous, but determined to prove himself to the frat.

“The task? She must put her new pussy to the test by getting fucked by every member of Theta Gamma Chi before her lovely flower wilts and she transforms back into a he.”

“Oh fuck me!” Nathan slammed his hands down onto his bouncy girlish thighs.

“Literally” he heard one of the frat boys say with a giggle. He looked around to see a bunch of hungry looking college boys staring at his curvy lower half. Nathan’s heart stopped beating for a moment. He looked over at Tyler and then down at his growing package.

“Alright let’s get this over with. You first.”