Muscle Growth Male Stories

112,478 results
Orientation
Length
Source
Infinite Scroll

Growth-XX

by FlatCap90210 on May 20, 2019
Science Fiction

James felt as if he was going insane. It was summer, the sun was shining and he was at the beach ogling girls. Tits of all shapes and sizes surrounded him, wrapped in bikini tops, one pieces and other pieces of fabric of varying coverage. James' heartbeat pounded in his ears and throbbed in his crotch, digging a furrow in the sand beneath him. He was lying o...

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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...

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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...

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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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Dick World

by darkness_drearing on Dec 25, 2019
Bisexual

For contributors As was stated at the top: while there were will be two general threads to go off of (for a guy and girl), feel free to create your own characters or scenarios. The only shared premise among them needs to be that they find themselves, however you decide that happens, in this universe and, as The Eagles would say, "You can check out any t...

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A New World Pt. 01 - Preface

by Newworldfuta on Nov 4, 2019
Fetish

Preface: ( I have a few stories in mind that i will be writing. This preface is an explanation of the universe/ world/ timeline that they occur. While its not entirely necessary to the reader to read this before or after reading any of my stories, it is helpful to me to establish and maintain continuity etc. ) The year is 2040, the world is a different pla...

A New Strand

by FlowSmash on Feb 26, 2017
Science Fiction

It had been a long day for Darius at college today, trying to work as his infected classmates tried to seduce and infect him. Putting his bags down, he turned his TV on, hoping to catch an update on the so-called "sex virus" that was going around. Some of the news channels had been taken over by the infected men and women and only talked about sex,...

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Male Homo Erectis Virus

by Bh12 on Apr 22, 2025

The Homo Erectis Virus started off in a research laboratory, originally meant to increase a males’ musculature, stamina, and longevity. The virus cells came from HIV, as it is a retrovirus that has RNA as its genomic material, and converts it into DNA strands which can be inserted into the DNA strand. The DNA also contains the instructions to make more retro...

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Magic Marker

by Kazza on Sep 3, 2019
Fantasy

The origins of the magic marker are unknown, only that tales of it's exploits have been told for centuries, a magical artifact that can change both mind and flesh with a stroke. Earliest reports of the artifact state that it had been a quill once before slowly adapting to the writing instruments of the twenty-first century. It is said that the marker has alm...

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Stallion Treatment Ch. 01

by Buffwriter on Sep 14, 2017
Sci-Fi & Fantasy

Just a little larger "Maybe 23 cm," I said, "just long enough to fill me completely full and grind on my clit. And a little bit bigger around, 15 cm?" Nathan looked down at the gift certificate to Body Mods he had pulled out of the envelope, then looked back up at me. "You never complained before." "Oh, Sweetie, I'm not complaining. You're very big for a...