Cock Growth Muscle Growth Stories

279,994 results
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Infinite Scroll

Demoness Costume

by mistyfdfa on Sep 13, 2017
Fetish

A woman's idea for a Halloween costume turns out to have a mind of its own... Rated NSFW for sexual nudity, and masturbation Analise was stressing out. Carol, the woman from accounting whom she liked quite a bit, had invited her to a Halloween costume party two weeks ago. The get together was tonight and, pressured by wanting to make a big splash after hav...

(Don't Have to) Twist My Arm

by mistyfdfa on Sep 16, 2017
Sci-Fi & Fantasy

The following story about a switch in a poly relationship contains alchemical potions that causes several kinds of growth. If you are not into women growing thick penises or becoming quite muscular, this story is probably not for you. ***** Yuuki woke to the feeling of her ear lobe being nibbled on as thick fingers toyed with her nipple. From how much bigg...

OBGYN

by Troof on Oct 4, 2019
Exhibitionist & Voyeur

Good morning, soon-to-be Breeders! My name is Sarah, and I have been a Breeder at Fort OBGYN for two years. Now that you’ve gone through all the written material for new Breeders, it’s time for me to give you a live demonstration of breeding. First, direct your attention to my Breeder uniform. As you can see, the top leaves my breasts completely free while o...

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Sales Pitch

by mistyfdfa on Sep 14, 2017
Fetish

"That all sounds lovely, but how do I know what you're telling me is true. How do I know this product of yours works?" Xurnami quirked an eyebrow at her scrawny customer, starting to suspect he was just here for the thrills. He had seen before and after photos. He had spoken with other clients. Neither had convinced him that an AdonisMax regimen was going t...

She-Hulk; Going Native

by gorel29 on May 14, 2018
Fan Fiction

Shutting the door to her office Jen Walters huffed in annoyance as she turned and sat at her desk, leaning back as she rubbed the bridge of her green nose. "Eight hours wasted in a trial involving some wacko hoping for the insanity plea. He's wearing a chicken costume! Of course he's going to get the damn plea!" Brushing her long green hair out of...

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Divine Attentions

by mistyfdfa on Mar 12, 2019
Fetish

Clive drummed his fingers on the steering wheel as he waited to circle the passenger pick-up lane. The two terminal, twelve gate airport was slowly getting outgrown by the nearby towns. It certainly was not designed to handle the level of traffic that now surged through its winding, circular roadway on a regular basis. Finally though, he was able to get to t...

Chosen by Passion

by mistyfdfa on Dec 25, 2017
Transsexuals & Crossdressers

Warning: this NSFW erotic fiction is about a trans woman's chance encounter with The Goddess of Passion and the resulting radical changes to her body as the deity grants her a boon both to apologize and, of course, advance her own agenda. So if breast and penis expansion, women getting swole, light femdom, sex changes, or reality warping are not things you e...

Inflation World

by senoritawhat on Sep 26, 2017
Fetish

Welcome to Inflation World! It's time to get started with your sexual adventures. Are you a boy, a girl, or something else?What's next? Boy Not a boy Girl What's next? Boy Not a boy Girl...

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Growing and Shrinking Thoughts

by silent soul ken on Oct 16, 2018
Fetish

As stated earlier the MC is either a guy, a girl or a futa. Futa's can be born futa or have operations to turn futa but said operations are extremely expensive. The MC can have one exceptional talent be it something like athleticism, creative talent, or something similar. Otherwise they are an average person who happened to survive a freak accident which giv...

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Samus and the Reality Altering Upgrades

by welldressedcrab on Nov 14, 2020
Science Fiction

Samus brought her ship into dock with the station, the docking bay walls closing behind her. In her adventures through the galaxy she had received a signal from a remote research station. The signal informed her that the station was inhabited by a scientist AI which was programmed to keep inventing and researching for eternity. If she came to investigate, sh...

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