(This is not technically traditional TF, as both the body and metal changes are through slow, natural means, but if you’re into that type of realistic transformation then keep reading!)

Aurora Sevallis was hopelessly skinny. The 21 year old college student was basically a stringbean in human form, not a single ounce of pinch-able meat to her rear. Most of her friends were jealous of her metabolism, but it was embarrassing being so flat and unappealing.

Probably a shallow concern, but it was one that bugged the bespectacled, raven haired nerd to eventually do something about it when she saw an ad online.

“Come to this safe, fun, easy, all women-gym to improve your health and shape the body you want! Pick up the phone and give The Bounce a call and see your ideal body come true!”

Like everyone else, Aurora had seen those instagram women that thickened up their bodies (especially their lower bodies) in the gym, she never wanted anything quite as extreme as that, but this was really inexpensive and would be perfect to at least get a little thiccer, right?

Two Weeks Later.

Aurora was ushered into the First Level of the massive Bounce gym. Similarly skinny girls filled the room, faces determined and bodies straining; their clothes stained in layers of sweat.

“This is for the Level One Membership girls. Unlike most Gyms, we don’t have the higher levels behind a paywall. All you have to do is be at the gym for a certain amount of time and you get moved up! The biggest levels require…something a bit more than that, but we’ll cross that bridge when we get there!” It sounded intriguing and bizarre all at once.

“You get better benefits and all sorts of perks with each new level, plus you get to meet more of The Family!” The muscled, cheeked-up goddess of fitness explained to Aurora as she walked her through the beginner areas of The Bounce.

Her skin was perfect, unnaturally shiny with sweat that made her look otherwordly. Abs and muscles were chiseled and hard, and her thick-with-muscle ass was absurd. It clapped and bounced as she walked as if being fondled by an invisible ghost. Her nametag said Ashley.

“We don’t just see this as a gym, but a community and family, and we can’t wait to get to know you!”

Three Weeks Later.

Aurora had met quite a few friends at the gym, and they were all eventually invited to a little party some of the employees and instructors and higher ups at the gym were holding. It was weird but nice, things seemed a lot more personal and friendly at The Bounce.

It was a great party at an absurdly nice resort house on a lake, people danced and talked and drank the whole might through. But there was a weird air to it. Was everybody there…religious? There was a lot of talk of capital F Faith and God and Worship…And yet they got very vague whenever one of the new girls like Aurora came up to them…

Five Months Later…

Aurora was obsessed. In only half a year, her body had gotten pretty insane. What was once just a casual thing was now an every day ritual for her. She had to workout, had to build her body, had to get thicker. There was something so satisfying (and maybe even hot) about seeing the progress and her body slowly get harder and thicker and more attractive.

All of her gym clothes came free, and The Bounce seemed to only give her the tightest leggings and yoga pants imaginable; they made her already large rear look cartoonish in the way they hugged her curves and forcefully gave her a wedgie that separated her ass cheeks apart and pronounced them even more.

It felt good, getting bigger. Sweating. Straining her muscles. She was in Tier Two now.

Two Months Later.

Tier Three. Her and everyone else were so big, so jiggly, so bouncy and thick. She was starting to get genuinely obsessed with not just her ass, but staring at the fat, thick asses of her friends. It was half of all they talked about, they loved complimenting each other on their gains and encouraging them to get even bigger and fitter.

She was now part of the recruiter classes, she’d basically been given the option of recommending the place to her friends, and of course she’d gotten at least a dozen people to buy a Bounce membership at this point.

One of her closest friends, an instructor of one of the Bounces higher levels, named Sam, took Aurora aside one day. She asked her all sorts of strange, but exciting things. Then she asked Aurora if she’d like to take the next big step and find out what The Bounce was really about.

One Year Later.

The last year had been a scary, exciting, supremely arousing whirlwind. The Bounce wasn’t just a gym. Not just a lifestyle. It was salvation. It was God. And the gym was simply named after it, but what really was The Bounce?

Aurora and hundreds of other followers had been there for at least five hours at this point. On their knees, clapping and twerking their fat ass cheeks, moaning wildly and cumming nonstop from sheer arousal as they chanted and prayed and worshipped their God. Ass.

A giant screen was in front of them, playing rapidly flash images of fat jiggly thick bouncing ass.

“Worship…worship…worship…worship…hnnnnnnnngf~” The cross-eyed Aurora moaned with her fellow Sisters of The Bounce as they clapped and twerked and squirted repeatedly.

One of the priestesses had been going on an incredibly intense sermon for hours now, her words feeding into their obsession; their religion. They loved The Bounce. They needed it. Aurora came for what felt like the billionth time that day. She loved going to church.

……..

Hey there! This is a crazy but fun idea I just got the idea for, and I hope I can find someone just as enthusiastic for it as I am! I am looking for a slow burn about our characters getting indoctrinated into a religion involving Asses! The twist is that I think it would be too easy and boring for magical-esque brainwashing to be involved. I want this to be a genuine cult that uses actual cult tactics to get people to seriously become fanatic followers.

DM me a detailed introduction and I’ll get back to you!