Cock Growth Muscle Growth Stories

279,994 results
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Length
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Infinite Scroll

Susan Storm's Secret Life 2

by exxxidor456 on Dec 13, 2018
Fan Fiction

Author’s note – This is a sequel to the ‘latex stripper/Mephisto’ story thread in the original ‘Susan Storm’s Secret Life’: __https://chyoa.com/story/Susan-Storm%27s-Secret-Life.10398 I’ve started with a synopsis recap, for the benefit of those who don’t want to dig through the original sprawling epic! But I’m still happy for people to go back and add chapte...

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Late Bloomers Syndrome

by kh211 on Dec 10, 2018
Miscellaneous

Late Bloomers Syndrome Dr. Liam Large New York, NY Abstract Frequency of Delayed Puberty commonly known as Late Bloomers Syndrome has been on the rise in recent decades. By examining the diets and day to day activities of the selected volunteers, we can better understand the dangers and possibly correct the imbalances that the population experiences that wil...

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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...

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A Love High in Protein

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

Warning: this massive, sexually explicit story, featuring a couple consisting of a huge, burly guy and a petite, willowy size queen, is about her achieving her dream of somehow growing larger to the point that she out grows him in every way imaginable. If things like a size difference fetish, muscles growing on both men and women, a woman becoming altersex,...

IrreFutable Changes

by D0Wh4tever on Aug 17, 2020
Fetish

In the medical world, it got called the Hormone-Oriented Sexual Transmutative Disease. The disease was transmittable through sexual activity and, as its symptoms and causes became more well-known, it got classified as an STD (Sexually Transmitted Disease) very quickly. Many people were fearful of the disease. They were never sure if they'd catch it, nor how...

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Misty Peaks

by FlowSmash on Jul 5, 2019
Science Fiction

Matt grumbled quietly to himself. How much longer would it be? he thought. The FBI agent had been assigned to Misty Peaks to investigate something about a missing scientist. The problem was, the town seemed to be way out in the middle of nowhere. The dark-haired man had been driving for three hours, and night was falling. Being a field agent, Matt had to kee...

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Captain America; the American id.

by gorel29 on Nov 25, 2019
Fan Fiction

In the center of a dark warehouse, five men stood around a table lit by an overhead lamp. Four of the men wore black business suits, the head of an up and coming crime boss in New York with his three bodyguards looking over the goods presented on the table. Across from the table was a man wearing a full body hazmat suit, a representative of Advanced Idea Mec...

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Mask of the Beast

by gorel29 on Mar 21, 2019
Fan Fiction

In the far reaches of the fifth dimension the pocket reality defied many things; reason, reality, fantasy… A realm home to beings capable of changing the laws of reality at the snap of a finger, in such a world anyone could have or do whatever they wanted really. But for one pans-dimensional imp it all summed up in one word. "BORING!" Floating aiml...

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Your transformative touch

by LoganSenpai00 on Jan 23, 2020
Fan Fiction

You are (Y/N). You are an ordinary man that worked a dead-end job in the office. Well, you were an ordinary person until you found out that you have the power to transform and grow people by just touching them. When you touch someone a menu appears that lists different options to grow or transform someone and also freezes time around you giving you plenty of...

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A Stretchy Situation (Side A)

by mistyfdfa on Oct 14, 2017
Sci-Fi & Fantasy

Warning: this sexually explicit story about three superhero spies having a relationship dispute is very skewed towards femdom as he finds himself in trouble with both of them. It features elastic ladies as well as breast, butt, clit, hip, penis, and vulva expansion, women's muscle growth, and some very intense facesitting. If any of that sounds like somethin...