Alien Experiment Stories

20,052 results
Orientation
Length
Source
Infinite Scroll

Springdale Peak

by Yarkoz on Oct 10, 2014
Erotic Couplings

They called it Springdale Peak, a gated community far from civilization deep in the countryside. Springdale had a unique set of rules for anyone to move in, as stated in their official charter: 1.) All residents need to be between the ages of 18 to 55. This includes children in families. 2.) All residents need to be in peak mental and physical health and mu...

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Ship's Whore Ch. 05: Cyborg

by AlinaX on Jun 10, 2019
Sci-Fi & Fantasy

It was easy to believe that Humanity had conquered Space. We were building colonies throughout the Solar System. We had even travelled to distant stars - albeit with help. I myself had made it all the way to Sol Station without ever once feeling I was in any real danger. By the time I left it, however, this false sense of security would be a distant memory....

Back to a Dark Time

by targlet2 on Jan 21, 2020
Group Sex

The wind blew up from the ruins of the abandoned planet and Ashley looked at her oxygen levels. She had at least two more hours to explore and with any luck at all the ancient city would be the fabled Nephilite colony. It had been rumored to be in the space systems of the region and to have gone extinct thousands of years after the home planet went extinct....

Abduction of Terror

by Hot Cheyenne on Sep 12, 2017
NonHuman

The silent desert sky shown as a million points of distant light as their fire engine red mustang convertible streaked southwest through the endless Nevada desert towards California. An occasional meteorite left a fiery dying track as it vaporized in the sky far above the heads of the two beautiful young females as they felt the cool desert night air course...

Adult Star Trek: TNG Ch. 02

by JTK84 on Sep 25, 2017
Celebrities & Fan Fiction

This story is based on the series Star Trek: The Next Generation and is set during the start of series 4 on the Starship Enterprise NCC 1701-D. This follows directly on from 'Episode 1 - Crusher's Mistaken Memories' and like that one, any comments on anything from grammar to ST authenticity are welcomed. It does contain a little incest and rough sex, just...

Enhancement: Experiment Ch. 01

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

Author's note: this story has lots of kinky sex. It's also fantasy. Watermelon sized breasts that produce gallons of aphrodisiac milk simply do not exist, and there are sex scenes in here that would frankly be incredibly painful if they were to occur in reality, but are a regular part of much fantasy erotica. So I advise you to suspend your disbelief, and if...

Aliens vs Predator Parody Ch. 01

by XenoMorph3000 on Sep 16, 2017
Celebrities & Fan Fiction

Greetings everyone, This is my absolute first submission to Literotica, and I hope that you all enjoy it. I have read a lot of stories and listened to a lot of audio stories, one of my most favorite is theravenfox of course, and I've finally decided to try my hand at writing and submitting a story. A little bit about myself, I never had an account until th...

Far Pangaea 45: Emotional Rescue

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

The Ganthorian Hilton. Ruby had been pouting for the last hour. Miserable at being left alone to baby sit not only James Ian Pryce but possibly her own unborn child. It was pretty obvious she was carrying Jack's child yet she had no rock solid evidence as of yet. It wasn't as easy as going to the corner market for a pregnancy test. James had gone off to hi...

Alfie & Blatt

by FINC on Sep 13, 2017
NonHuman

Alfie couldn't stop laughing. Maybe it was drugs; well, they had consumed a lot. Or maybe it was the suspense of the next few days before school started again. Who knows but Alfie couldn't stop laughing. Blatt, his obese friend was leaning back in his chair, his waist spilling over the sides, continuing his friend's parental abuse. "I tell you Alfie, your P...

Orgasm to Die For

by Convict26 on Sep 13, 2017
Toys & Masturbation

The day started off like any other: wake up, eat breakfast, work out, all the usual day to day habits; only there was one slight change, it had been a week or 2 since I last masturbated and I had a strange feeling of desire surging inside of me. Due to the fact I was single and had been for some time the only way to reduce the level of sexual tension was to...