sexstories.com
Alien
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Astral Sex With Aliens by Valerie Noirblossom
«“Ever had astral sex with an alien succubus before?” said Olive. “Won’t it pose difficulties for getting into heaven?” I wondered aloud.»
Rated 50%, Read 13038 times, Posted Thu 30th of July 2020
Fantasy , Alien, Threesome -
Sinuosa, Planet of Female Aliens by Valerie Noirblossom
«Scrawled notes from my late colleague Blackwood were all I had to guide me. They existed only in a tattered leather-bound volume, chronicling in his own hand the final journey and his descent into sheer madness.»
Rated 90%, Read 12951 times, Posted Sat 23rd of May 2020
Science-Fiction , Alien, Male / Females -
The Mysterious Tentacle Forest Alien_(2) by Unknown user
Rated 70.6%, Read 12756 times, Posted Wed 19th of June 2013
Fantasm , Alien, Anal, Blowjob, Boy, Cum Swallowing, Domination/submission, Extreme, Masturbation, Mind Control, Oral Sex, Teen -
Corruption of Champion ch.2_(0) by Shadowmeld
Rated 29%, Read 12354 times, Posted Sat 18th of May 2013
Fantasy , Alien, Fan fiction, Male Solo, Masturbation, Mature -
Lost in Space - Book 2: Claimed in an Alien Facility by GideonBard
«Continued from Book 1: Lost in Space - Strands of Temptation; John and Judy enter an abandoned alien facility to find power to jump the fusion reactor on the Jupiter. In the process, John discovers his daughter's tight, young, greedy pussy is begging to be stretched open.»
Rated 87.2%, Read 12270 times, Posted Sat 11th of April 2026
Science-Fiction , Alien, Blowjob, Fan fiction, Hardcore, Interracial, Male/Female, Romance, Spanking -
into the darkness part 3 by Big n new
Rated 68.6%, Read 12204 times, Posted Mon 10th of August 2015
Fantasm , Alien, Blowjob, Coercion, Cum Swallowing, Domination/submission, Oral Sex -
Kiss of the Dragon - A Halloween Story by The_Technician
«A young Celtic Maiden is kissed by a dragon»
Rated 85.4%, Read 12189 times, Posted Mon 10th of October 2022
Fantasy , Alien, Erotica, Female solo, First Time, Gothic, Virginity -
Corruption of Champion ch.2_(1) by Shadowmeld
Rated 60%, Read 12141 times, Posted Sat 18th of May 2013
Fantasy , Alien, Fan fiction, Male Solo, Masturbation, Mature -
A new drug 3 by arcaine one
«More of Cassandra and her travels»
Rated 87.3%, Read 11826 times, Posted Mon 2nd of May 2022
Diary , Alien, BDSM, Body modification -
Hedonasia Ep 4 by Cauliflower_face
«We meet the slave, and find out a little bit about her.»
Rated 76.7%, Read 10854 times, Posted Thu 6th of May 2021
Fantasy , Alien, BDSM, Blowjob, Body modification, Bondage and restriction, Cum Swallowing, Domination/submission, Erotica, Male/Teen Female, Monster, Slavery, Stockholm Syndrome, Teen -
Other Worldly Love by Luukerf
«A girl has a lovely encounter from another world»
Rated 70.4%, Read 10581 times, Posted Thu 18th of June 2020
Fiction , Alien, Female / Girl, Non-Erotic, Romance -
resurgence of chaos by iriqi
«the ultimate evil returns and will the ancients be ready?»
Rated 70.8%, Read 9999 times, Posted Sun 6th of March 2016
Fantasy , Alien, Non-Erotic -
The Impregnation of Venus by doctorstrawberries
«An astronaut hoping to leave Earth behind is intercepted by aliens on her journey through space. This all male cadre has one very specific mission...»
Rated 82.4%, Read 9846 times, Posted Tue 20th of January 2026
Science-Fiction , Alien, Mind Control, Reluctance -
Life of a IMVU fucking spritualist Day 7 by DracMorair
Rated 61.1%, Read 9735 times, Posted Sat 1st of August 2015
Fantasm , Alien, Monster -
To visit the one with feathers by Flora James
«On another planet humans created a bird human hybrid. One curious earth adventurer finds himself in the home of one such creature over 100 years later. She’s smart and well spoken and would like to learn about his body as much as he would hers.»
Rated 90.3%, Read 9522 times, Posted Sun 8th of December 2019
Fantasy , Alien, Consensual Sex, Interracial, Male Solo, Male/Female, Masturbation, Written by women -
New drug part one (edited) by arcaine one
«Cassandra tries a new drug»
Rated 91.2%, Read 9258 times, Posted Fri 25th of July 2025
Diary , Alien, Bi-sexual, Blowjob, Consensual Sex, Drug, Interracial, Lactation -
Jena and Lisi Ch. 4 by Jenny Lane
«Jena, Lisi and Trix have to make an emergency landing on the legendary planet of Zeltros»
Rated 72.4%, Read 9126 times, Posted Mon 14th of June 2021
Science-Fiction , Alien, Cum Swallowing, Fan fiction, Group Sex, Transsexual -
VIRUS SURGE: Chapter 4 and 5 by Merc098
«A tale of survival and new beginings.»
Rated 83.3%, Read 8598 times, Posted Mon 22nd of April 2024
Science-Fiction , Alien, Body modification, Bondage and restriction, Males / Females, Monster -
Mass Effect. Erotic journey. Ch.4. The Lust by Blackjackoff
«Collection of short stories is an extension of the famous Commander's journey. Each story will describe an erotic event in the life of the captain (and his crew). All the events of the stories fit seamlessly into the time periods between missions and sometimes go beyond them.»
Rated 81.1%, Read 8415 times, Posted Fri 6th of October 2023
Science-Fiction , Alien, Blowjob, Extreme -
Voyages of Kes (reupload) by sandstorm3636
«Kes becomes an outlet for the crew of USS Voyager.»
Rated 63%, Read 8214 times, Posted Thu 26th of March 2026
Science-Fiction , Alien, Asian, Blackmail, Blowjob, Body modification, Bondage and restriction, Cheating, Coercion, Cruelty, Cum Swallowing, Dark fiction, Extreme, Fan fiction, Hardcore, Interracial, Job/Place-of-work, Male Domination, Prostitution, Reluctance, Sado-Masochism, Slavery, Threesome, Young -
AZ Mystery - chapter 3 by Limnophile
«Pedro explores further and rescues a friend.»
Rated 87.5%, Read 7920 times, Posted Wed 7th of February 2024
Science-Fiction , Alien -
AZ Mystery - chapter 1 of 5 by Limnophile
«In this sci-fi mystery, park ranger Pedro wakes up nude in the wilderness with no idea what happened.»
Rated 88.2%, Read 7701 times, Posted Sun 21st of January 2024
Science-Fiction , Alien, Interracial, Romance -
Alien Symbiote: Part 6, Killing Rose by I am Inger
«There is an alien life form on earth that spreads by sexual contact. Infestation is fatal, but some men choose to host it for what it does to them.»
Rated 50%, Read 7017 times, Posted Tue 27th of August 2024
Science-Fiction , Alien, Death, Horror, Male/Female, Plumper, Snuff -
Bad Seed Ch. 6 by pars001
«A master thief and her problems with a bad job.»
Rated 83%, Read 6963 times, Posted Tue 5th of April 2022
Science-Fiction , Alien, Body modification, Mind Control -
Bad Seed Ch.5 by pars001
«A master thief and her problems with a bad job.»
Rated 90.6%, Read 6699 times, Posted Sun 28th of November 2021
Science-Fiction , Alien, Body modification, Mind Control -
Lost in Space - Book 4: The Genesis Protocol by GideonBard
«Continued from a series. In this Lost in Space episode we learn what the research facility really is and why this planet has such a power over the Robinson family. Zoe, the scheming doctor aboard the ship gets what she deserves when she tries to partner up with Robot to take over the ship...again.»
Rated 88.5%, Read 6585 times, Posted Sun 17th of May 2026
Fiction , Alien, Anal, Authoritarian, Blowjob, Dark fiction, Domination/submission, Fan fiction, Male/Female, Mind Control, Oral Sex, Reluctance -
AZ Mystery - chapter 4 by Limnophile
«They fell from the sky.»
Rated 86.9%, Read 6501 times, Posted Wed 7th of February 2024
Science-Fiction , Alien -
The mind's eye 4 by pars001
«A man retired from a secret government agency, hoped that his time with them was through. Little did he know that an enemy from the past was still on earth.»
Rated 84%, Read 6225 times, Posted Sat 7th of October 2023
Science-Fiction , Alien, Body modification, Death, Mind Control -
AZ Mystery - chapter 2 by Limnophile
«Ranger Pedro investigates his situation and tries to survive more challenges.»
Rated 89.1%, Read 6078 times, Posted Sat 27th of January 2024
Science-Fiction , Alien -
Rocky Revisited - A Halloween Story by The_Technician
«A 50th anniversary Rocky Halloween Party.»
Rated 82.1%, Read 6033 times, Posted Wed 15th of October 2025
Fantasy , Alien, Anal, Blowjob, Cosplay, Erotica, Exhibitionism, Female/Female, Group Sex, Male / Females, Transgendered, Transsexual -
Worlds Apart by Eccho
«Would you react accordingly after learning that aliens actually have been observing us for millenia? Prolly not.»
Rated 78.9%, Read 5859 times, Posted Mon 5th of February 2024
Fiction , Alien, Consensual Sex, Erotica, Female/Female, Lesbian, Oral Sex -
Chapter One The Winter Harvest by Mags
«After an alien entity transforms Maggie into a predatory vessel, she and her son Nathan enslave her daughter Hana. Together, they use biological infection and digital platforms to expand their bioluminescent hive.»
Rated 88.1%, Read 5715 times, Posted Mon 16th of February 2026
Fiction , Alien, Anal, Ass to mouth, Ass to pussy, Authoritarian, BDSM, Bi-sexual, Blowjob, Body modification, Bondage and restriction, Boys/Teen Female, Coercion, Consensual Sex, Cum Swallowing, Domination/submission, Group Sex, Hardcore, Interracial, Males / Female, Males / Females, Mature, Monster, Older Female / Males, Prostitution -
The mind's eye 5 by pars001
«A man retired from a secret government agency, hoped that his time with them was through. Little did he know that an enemy from the past was still on earth.»
Rated 81.6%, Read 5001 times, Posted Tue 26th of December 2023
Science-Fiction , Alien, Body modification, Death, Mind Control -
Who? Part 1 by ThePharoh
«A porn story based on Doctor Who.»
Rated 80%, Read 4974 times, Posted Wed 13th of December 2023
Science-Fiction , Alien, Consensual Sex, Group Sex -
Officer Shifter at Spacer Bob’s Fantasy Tours 03 by The_Technician
«Spacer Bob now moves in time as well as space.»
Rated 83.6%, Read 4860 times, Posted Wed 11th of March 2026
Fiction , Alien, Anal, BDSM, Cruelty, Domination/submission, Erotica, Exhibitionism, Female exhibitionist, Humiliation, Reluctance, Slavery -
Vanessa's encounter with mind controller from Stalker by zekameka
«Stalker world, Vanessa explores laboratory. Unforunately for her a mind controller mutant considers it his home.»
Rated 63.6%, Read 4059 times, Posted Sun 21st of June 2026
Fantasm , Alien, Bondage and restriction, Extreme, Horror, Mind Control, Monster -
Planet of the Gorgons by Blue Rail
«I visit the planet of the many-tentacled Gorgons, who make the most of my willingness to help them meet their desperate need for sexual stimulation.»
Rated 71.4%, Read 3729 times, Posted Sat 1st of August 2026
Science-Fiction , Alien, Anal, Blowjob, Group Sex -
Officer Shifter at Spacer Bob’s Fantasy Tours 01 by The_Technician
«An Ophugalian shape-shifter joins Star Patrol»
Rated 82.9%, Read 3105 times, Posted Wed 25th of February 2026
Fiction , Alien, BDSM, Erotica -
For Whom The Shoggoth Rolls by Anna_Roid
«A human representative on the eldrich island of R'lyeh falls in love with a daughter of the goddess Shub-Niggurath herself.»
Rated 77.8%, Read 2586 times, Posted Tue 2nd of June 2026
Fiction , Alien, Female/Female, Lesbian, Romance, Written by women -
Officer Shifter at Spacer Bob’s Fantasy Tours 05 by The_Technician
«Spacer Bob’s tour visits a planet that exists only in myth.»
Rated 80.6%, Read 2571 times, Posted Wed 25th of March 2026
Fiction , Alien, BDSM, Discipline, Domination/submission, Exhibitionism, Female Domination, Female/Female, Humiliation, Slavery -
Officer Shifter at Spacer Bob’s Fantasy Tours 06 by The_Technician
«Spacer Bob concludes his tour with an Ogre Orgy.»
Rated 82.4%, Read 2556 times, Posted Wed 1st of April 2026
Fiction , Alien, BDSM, Exhibitionism, Voyeurism