Site:mcstories.com Reproduction Stories

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Infinite Scroll

Human Reproduction

by Fidget1 on Apr 22, 2025

Author's Note: Standard disclaimer applies: this story contains fictional depictions of erotic scenarios, so act accordingly! All characters are at least eighteen, all situations are entirely fictional, and any resemblance to any real-life individuals or situations is entirely coincidental. Copyright Fidget, all rights reserved. Enjoy! Human Reproduction by...

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Sexual Education: Lesson 01

by AmanoSnow on Sep 16, 2017
Humor & Satire

Ms. Gillian flattened her cloths one last time. Then she stood up straight and entered the classroom. As usual, the students were loud and didn't notice her entrance at first. Only when she slammed her books on the table, they stopped talking to each other and went back to their seats. After everybody was sitting, she cleared her throat and then started ta...

The New Age Breeders Ch. 01

by ualmech88 on Sep 13, 2017
Novels and Novellas

Location: A government sanctioned milking station year 2165 The receptacle was placed in readiness by the assistant milker. The milker continued to work the engorged ten inch penis with her very practiced hands. Her oiled right hand stroking and twisting about the upper third of the subjects hard cock, additional lubrication being supplied by the precum fre...

Offspring Ch. 009

by Talemaster on Sep 13, 2017
Sci-Fi & Fantasy

I went to the office at around seven and had my breakfast there. The Feds building was staffed around the clock, consequently the officer's mess never closed. The food was every inch as good as the food in the hotel and only about a third of the price. Not that the prices at the hotel worried me, but why pay more than you have to? "You are bright and early...

The Sex Machine

by TaleSpinner on Nov 2, 2019
Science Fiction

Writer's Note: Based on a story I once wrote on Cyoc, and thought I'd at least bring a version to Chyoa for my first story here. Something looked out onto the world. So much life, and said life had a very intriguing way of reproduction. Involving their special DNA and how their sex and survival of the fittest made them incredibly adaptable... The only issue...

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A Futa's Price

on Apr 22, 2025

Credit for Cover goes to Incase, I do not own the cover art, nor do I profit by it. First, an explanation of the setting, then we'll get to the good stuff. In this world, Futa are the third gender, as natural and well known as the other two, and just as needed in reproduction. In order for a baby to be conceived, a woman must have sex with a futa, preferably...

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Making The Grade in Biology

by alan55 on Sep 13, 2017
First Time

This story is a work of fiction. While I myself fantasized about something like this happening when I was in High School, it is only a fantasy. It was my senior year in high school and my grade point average was barely getting by to be able to graduate. I was 18 and in my second semester. My grades were good enough to graduate in all but one class, Biology...

Xenophilia

by JukeboxEMCSA on Nov 9, 2017
Humor & Satire

The new specimen was waking up. Lord Xaurkoth unsealed the entrance to the specimen chamber and reared up to his full majesty, allowing only two of his tentacles to bear his weight. In this gravity, of course, even the weakest brood-swaddler could have maintained this stance, but the specimen didn't need to know that. It only needed to know that Lord Xaurkot...

Fucking With Humans!

by A Nony Mouse Coward on Jul 23, 2019
BDSM

Human sex is a joke all across the Universe. For all other advanced species, sexual reproduction was carried out sensibly—outside the body, in a secure location, with the aim of birthing hundreds to thousands of offspring at a time. But many Earth fauna had evolved to need to fuck, to directly couple and begin gestation inside one animal or the other, an arr...

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Modern Reproduction Institute

by divacarolina on Sep 18, 2017
Sci-Fi & Fantasy

Berto unwinds the tangles in his headset cord, and slides the collection bag closer to him. After nearly a year in the institute, he's gotten used to the idea that he's locked to a bag of his own piss and cum. He only notices it at times like this, trying not to fall behind. To pull enough of the real world into him, to make up for what they're sucking out,...