Alien Parasite Stories

9,669 results
Orientation
Length
Source
Infinite Scroll

Herd

by homealone_447 on Sep 15, 2017
Sci-Fi & Fantasy

The first contact with life from another planet was almost catastrophic, nearly turning humanity into a slave race. But salvation came from the sky as well, a different species with very different cultures. They offered help if we helped them in return. We accepted. The aliens came to stay. Since then, Earth became part of the universal federation and home...

Aliens Use Sex to Invade Humans Ch. 01-02

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

Author's note: I received an e-mail requesting that I write a story about aliens taking over humans and creating insatiable sexual desires. The person requesting this story had read another story on Literotica entitled Hosts. He was disappointed that the author of Hosts did not write any more chapters after the first submission, which is why he asked me to w...

Control Ch. 08

by thisonelad on Jan 6, 2020
Sci-Fi & Fantasy

Amanda sighed with a smile as she walked home. There was a girl on her arm, rambling on about some subject she cared little about. The petite Asian had not invited the random woman back to her place because she had cared about her personality, after all. She had seduced the woman with the intention of infecting her with an alien slug, one that even now sat i...

Dark Liquid Ch. 01

by strangerobo on Sep 25, 2017
NonHuman

Editor's note: this story contains scenes of non-consensual or reluctant sexual situations. First submission! Madison was excited to get one more jog in before the sun set. Prom was three days away and she had no desire to look anything but perfect when she wins prom queen. Madi was the best at getting her way. She had her stepmother wrapped around he...

Unidentified Organisms Ch. 02

by LateNightStories on Sep 25, 2017
Erotic Horror

Drip, drip, drip! Thick drops of watery fluid was falling from the ceiling and hitting Harley on the forehead. She groaned loudly and rolled away. Every part of her body ached. Not that this was surprising to her after she realised that she had been sleeping on the metal grated floor in one of the corridors. How did I end up here? she wondered. Have I been...

Genetically Engineered

by AndrewJackson on Sep 19, 2017
Sci-Fi & Fantasy

The genetically engineered larva, visible only under a microscope, was in her bedroom. No one knows how, or when, it got there. It wasn't created by anything from our planet, and attracted no notice. Designed to infect female humans, it had a small bulbous head and two tails. It moved slowly by wriggling its two tails in unison, and was hungry for... estrog...

Sholan Alliance - AU Bk 04 Ch. 03

by maxd01 on Sep 14, 2017
Celebrities & Fan Fiction

Missing Carrier 2 Inspector Montgomery ended up working with a fellow Inspector. She was in her office looking at Inspector Montoya. They had come up through the ranks of the Inspector General's office and both were very good at their jobs. He tended to specialize in earth based cases. Many of them were espionage or counter-espionage cases, "How do you want...

First Thirst Ch. 07

by NastyPierre on Sep 14, 2017
Fetish

How lucky can one guy get? Here I was, in the bed of the prettiest woman I'd ever known, holding both her tits while sucking on the nipples. I felt like a nursing piglet and probably sounded the same, but that didn't bother me none. I concentrated on squeezing and playing with those titties, yes titties, as much as I could. I needed too, before I woke up and...

Tags.

by RicoLouis on Apr 19, 2017
Miscellaneous

As seen below their are many names for the large variety of sexual topics and no real agreed upon list of Tags so I am making a list as best I can to help readers find the stories that interest them. I will be using the most common named tags to make it easier for the readers to find what they like. Below we have an example. Name Stories Blowjob 34...

Open in Reader

First Contact

by Krevmh on Mar 22, 2021
Science Fiction

You land on the floor with a wet slap, audible to you but minuscule compared to the size of the world around you. You writhe pathetically toward the shadows underneath a piece of furniture in the dark. Getting to it is slow, a room your old body could have handled with two strides becomes an hour of work. Of course, you don't have that body anymore, and this...

Open in Reader