Futanari Muscle Growth Stories

51,810 results
Orientation
Length
Source
Infinite Scroll

Mod your life

by Jlizardi on Jul 15, 2019
Fetish

One day John woke up and heard a strange voice in his head telling him that he can alter anyone he wanted with the snap of his fingers... he didn’t know where this came from but he wanted to try it.What's next? Mom and dad The police station Feel free to add whatever The neighbor little sister His Aunt Bratty Sister and Her Bratty Friend Himself His Sist...

Open in Reader

Futanari Fanfiction

by Wikia on Jan 29, 2017
Fan Fiction

We'll start writing right away. DICK GIRLS AHOY!What's next? The Barbaric Archipelago (How to Train Your Dragon) Motunui (Moana) Arendelle (Frozen) Middleton (Kim Possible) Quantic Universe The Human World (My Little Pony) Equestria (My Little Pony) The Tardis (Doctor Who) Coruscant (Star Wars Clone Wars) Quahog (Family Guy) Hogwarts (Harry Potter) The fles...

Open in Reader

Contagion 63X - Viral Transformation

by Aroband on Feb 20, 2020
Fantasy

From the records of Advanced Bio-hazard Research Facility Psi Omega - Location **Redacted** ---===Virus 209-q===--- Codename: 63X Virus 209 was designed as a way to naturally incapacitate the human body by temporarily drastically increasing the production of certain hormones in the body. Strand q was a dangerous outlier in 209's evolution that went far beyon...

Open in Reader

Book of Lust

by bbcummings on Jan 16, 2019
Fantasy

**** Contributions from other authors highly encouraged!!! If you have an idea at any point, feel free to add it! **** No one knows how old it is. The first record appeared around 57 AD: A member of Nero's court refers to a "tainted scroll" capable of bending the wills of those around it to animalistic desires. Throughout the Middle Ages, the book...

Open in Reader

Size Matters

by idahoboy on May 5, 2015
Science Fiction

Adam rushed into his room after school. His dick was already straining in his pants. It seemed like it was getting harder and harder to make it through a day of school without jerking off. The young man had taken to blowing a load in the toilet at lunch. Today, he couldn't find an empty stall before the bell rang. The boy dropped his pants wrapped his hand a...

Open in Reader

The Chosen One

by Zaulek on Jan 13, 2019
Miscellaneous

[Author's note: if you ever come up with a story or branch, you can add it. Because it's an option that wasn't quite popular, I decided to make the story public. No revisisons from me, everything can be added, as longs as it doesn't break the site's ToS] A person wakes up from sleep to the sight of a room, different than the one they began their night in. A...

Open in Reader

The Lonely God.

by joshman110 on Aug 30, 2017
Fantasy

So guess what? You're a god. I know, right? It's pretty cool. Infinite power has a lot of perks. You can be whatever gender or species that you desire. You can go to any universe and do whatever the fuck you want. For example, you could go to world where high fantasy is the name of the game. You could be a brave dragon-slaying knight or a buxom princess with...

Open in Reader

Little Liz's Big Suprise

by danny222 on Aug 8, 2020
Fetish

Liz woke up this morning feeling a little horny, which wasn't normal, but this was even different from the rare occasions that she actually did feel horny. It was a little stronger, but with Liz having a medical condition that continued her puberty she was getting used to unfamiliar feelings, so she wasn't too alarmed, just curious. Puberty as it turns out t...

Open in Reader

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...

Open in Reader

Autus: Epilogue Pt. 02

by sexgundam666 on Dec 24, 2019
Sci-Fi & Fantasy

Author's Notes: WARNING!! This story contains extreme growth and Hyper sized cocks. If you've read the previous epilogue chapter, this may be up your alley, however if not, then I strongly urge that you either read it, or do not continue if cocks five stories tall does not appeal to you. You have been warned. Those who continue, enjoy. ***** Gwen's Journal...