Lab Rat Futa Stories

16,252 results
Orientation
Length
Source
Infinite Scroll

Maranara Hospital

by PaladinInBlack on Sep 1, 2017
Humor & Satire

Tags: MC, MF, GR, HU Synopsis: Stay out of the tunnels of Marinara Hospital. Notes: "My Erotic Fiction". "My" means you cannot post it elsewhere without permission, although I will let you post it, in its entirety, at a free site. "Erotic" means if it is illegal or immoral for you, don't read it. "Fiction" means it ain't real in any sense- all made up (tha...

Autus: Final

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

"Um, Mistress? Can I, uh, can I get up now?" She asked, squirming slightly where she sat, partly from the growing discomfort and embarrassment at calling Gwen by such a title. The redhead looked at her, almost seeming not to realise what she was saying, but realised the brunette had been sat there for quite some time.. "Oh, yeah. Sorry, um, you can move ar...

A Hyper Hookup

by BeybladeMoses on May 11, 2020
Fetish

A Hyper Hook Up 1: New experiences By: BeybladeMoses Tags: Futa, Male/Futa, Hyper, Excessive Cum, Huge Boobs, Penis expansion, Plot/Romance All characters in this story are 18 years of age, or older! * It had been a long, day in the city of Eugene, Oregon; Tyler opened the door to his new apartment and threw his book bag on the couch followed shortly by...

Lucy the Lab Rat

by YourBestNightmare on May 6, 2017
Fetish

Lucy exited the classroom, closing the door gently as the professor within droned on. Her eyes were focused on the stack of papers she held in her hands, her latest exam results. She scoured the pages with her eyes as she flipped through them, attempting to make sense of the results. The good news was that Lucy had been extremely consistent with her testing...

Open in Reader

First Immortals Ch. 13

by bb1212 on Sep 25, 2017
Sci-Fi & Fantasy

First up I would strongly suggest that if you haven't read the earlier chapters please do so before reading this one, it will explain a lot of things... Now, enjoy. BB1212 ***** The intergalactic navy was now in full combat preparation mode. We had to be. I knew the Parsks were coming to attack us, and I knew when this would happen, but unfortunately I kn...

The Adventures of Futa-Girl 01

by sajukno on Sep 25, 2017
Sci-Fi & Fantasy

Hillary Trenton, a young, blue-eyed buxom blonde, was archaeology's fastest-rising star. A recent big find of a previously unknown species of dinosaur had catapulted the young archaeologist to public recognition (rare in her field) and, of course, money. Hillary was already set for life, a combination of TV appearances, book deals, and of course profit from...

Cygnus Breeding Labs Pt. 01

by blightswitch on Oct 5, 2020
Fetish

(Warning: This story includes futa and cum inflation) Background: In the distant future, humanity truly takes to the stars. A golden age of science and technology launches the species into a universe merely dreamt of my previous generations. Medicine progresses and increases the human lifespan, aided by interspecies cooperation with alien worlds. One of the...

The Last Man on Earth

by GenericTitle on May 8, 2015
Science Fiction

The last man on earth, somehow. The thought crossed your mind during almost every one of the now rare dull moments where you had time to focus on something other than the project. Whatever it was that had happened during 'The Disappearance', it left you in a pretty good spot. You knew that most guys had probably fantasized about your situation at one point o...

Open in Reader

Demonic Lust Ch. 02

by TheseSinsAreMine on Jun 15, 2020
Sci-Fi & Fantasy

Author's Note: This story contains futa/futanari, lesbian, fantasy and Female on Male sex. If that's not your thing, well, you were warned. All Characters are over 18 years old. Feedback always welcome. Enjoy! Until such a time as she could get around to it, however, Vrida has other matters to attend to and pulls away from the clutches of the insensate demo...

Daily, Bred

by DTales on Mar 16, 2020
Humor & Satire

The Futanari Sexual Health Clinic. It was a building June had passed multiple times while driving through town. From the outside, it looked like any other doctor's office. June had never felt the need to visit it. But this day, there was a letter board near the entrance, the kind one might see outside a hardware store or sandwich shop. The sign advertised a...