Alien Impregnation Stories

10,204 results
Orientation
Length
Source
Infinite Scroll
SmutMD: The World's Biggest Erotic Literature Search Engine.
© 2025 SmutMD.com

Re-population Ch. 04

by alan55 on Sep 13, 2017
NonHuman

Ch 4 – The downfall (Quinn) Over the years, the re-population effort seemed to be going well. The alien's numbers grew quickly in the first couple of generations. The alien males would impregnate as many of the human females as possible. Since the human females would normally have only about 3-4 children during their lifetime and each alien impregnation...

Demonbeast Invasion Renewed Ch. 02

by YojuLord on Sep 26, 2017
Sci-Fi & Fantasy

Sorry it took so long for the sequel. Thanks for all the favorites and comments. Themes of tentacle sex, alien impregnation and alien offspring/mother incest. ***** The moonless night was illuminated by the city's buildings and skyscrapers which stood out against the surrounding darkness. But within the bright lights of the city, a tremendous, dark shadow...

John is Timeless Ch. 02: Ballet

by Cockerboy on Sep 16, 2017
Sci-Fi & Fantasy

John has been on earth for a year now. The whole of earth has been time frozen into what seems to be a fertile ground for alien procreation. Humans are still warm to the touch and do not die unless the male has been harvested or the female has given birth. John has tried burying the bodies, but has started burning them due to the sheer volume. He could not...

Sachem and the Borgles

by sex slave on Sep 16, 2017
NonHuman

Sachem went about his floating around within hive seventy two of the gortrum sector of his home sphere. Like most of his kind he was of a decent size and of a brilliant color blue. Most of the Borgles were very happy these days because another planet had been captured making for more colonization. Sachem, like most of his kind was long and cylindrical and...

Futas in space

by showmetits on Feb 6, 2020
Fantasy

In this story you're the last known human (and you don't know what you are) who ends up getting it on with a really sexy futa alien girl who also is the last of her kind and doesn't know what her race is. Here you will choose your gender. You can write your own stories threads too. Just look at the writing guide so you can get an idea of I'm looking for. It...

Open in Reader

What Those Little Greys Can Do

by animeninjaNIPPON on Sep 15, 2017
NonHuman

Lisa Rosley learned the hard way: never underestimate what those little Greys can do. Lisa had taken an interest in extraterrestrials back when she was an elementary school girl. Being the type of child who seldom connected with peers her own age, it seemed almost natural that she would take an interest in the possibility of life outside her galaxy. She spe...

The Hentai Simulation

by FootLicker8 on Apr 29, 2025

(Cover image by Kairunoburogu) This story is public and I would greatly appreciate if you considered writing your own branch for it to give some more options to the readers. Anything allowed by the Chyoa rules is allowed here as long as it fits the premise of course. Please read the writer guidelines to help you fit your branch with the overarching lore befo...

Open in Reader

Universal Sexuality

by Shale on Sep 15, 2017
Reviews & Essays

For those not familiar with Playboy magazine, Asa Baber writes a column on men each month, usually a masculinist interpretation of relationships with women. His essay in the December, 95 issue was titled "multisexual in 1996," and started as an exploration of bisexuality when one of his old cronies confessed to a new found sexual identity. However, Baber ran...

Alien Abductions are Real

by PO469 on Oct 31, 2017
Sci-Fi & Fantasy

FMMMM, alien Julie lay on the beach, about fifty feet from the gentle ocean waves. She had just come in from a swim in the clear, warm Caribbean waters. She had gone with her family for vacation on St. Maartin Island and this was the third day of the trip. Julie was wearing her favorite and smallest bright orange bikini. Because she knew how small it was, s...

The Water Baby

by bigpreggoman on Aug 30, 2017
Fetish

Stuart, wearing a diamante tiara, laid on his back and parted his legs, knees out breast-stroke style. He tossed the shiny rubber butt-plug onto the bed covers next to himself – for easy reach later. Reaching down the left side of his naked length, his fingers sought around for the hose and eventually found it. The hose, secured to the bath tap 30 feet away...