sexstories.com
Alien
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Broken Kingdom by The_Fallen_
Rated 81.3%, Read 13119 times, Posted Mon 16th of February 2015
Fantasy , Alien, Blackmail, Blowjob, Coercion, Humiliation -
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 13014 times, Posted Sat 23rd of May 2020
Science-Fiction , Alien, Male / Females -
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 12762 times, Posted Sat 11th of April 2026
Science-Fiction , Alien, Blowjob, Fan fiction, Hardcore, Interracial, Male/Female, Romance, Spanking -
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 -
Kiss of the Dragon - A Halloween Story by The_Technician
«A young Celtic Maiden is kissed by a dragon»
Rated 85.4%, Read 12300 times, Posted Mon 10th of October 2022
Fantasy , Alien, Erotica, Female solo, First Time, Gothic, Virginity -
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 -
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 11967 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 10959 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 10677 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 10086 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 10086 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 90.5%, Read 9612 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 9579 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 9192 times, Posted Mon 14th of June 2021
Science-Fiction , Alien, Cum Swallowing, Fan fiction, Group Sex, Transsexual -
Voyages of Kes (reupload) by sandstorm3636
«Kes becomes an outlet for the crew of USS Voyager.»
Rated 63%, Read 8691 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 -
VIRUS SURGE: Chapter 4 and 5 by Merc098
«A tale of survival and new beginings.»
Rated 83.3%, Read 8679 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 8493 times, Posted Fri 6th of October 2023
Science-Fiction , Alien, Blowjob, Extreme -
AZ Mystery - chapter 3 by Limnophile
«Pedro explores further and rescues a friend.»
Rated 87.5%, Read 7998 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 7803 times, Posted Sun 21st of January 2024
Science-Fiction , Alien, Interracial, Romance -
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 90%, Read 7437 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 -
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 7242 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 7032 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 6750 times, Posted Sun 28th of November 2021
Science-Fiction , Alien, Body modification, Mind Control -
AZ Mystery - chapter 4 by Limnophile
«They fell from the sky.»
Rated 86.9%, Read 6600 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 6303 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 6180 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 71.9%, Read 6171 times, Posted Wed 15th of October 2025
Fantasy , Alien, Anal, Blowjob, Cosplay, Erotica, Exhibitionism, Female/Female, Group Sex, Male / Females, Transgendered, Transsexual -
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 6165 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 -
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 5976 times, Posted Mon 5th of February 2024
Fiction , Alien, Consensual Sex, Erotica, Female/Female, Lesbian, Oral Sex -
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 5064 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 5046 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 4959 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 60.9%, Read 4395 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 75%, Read 4263 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 3153 times, Posted Wed 25th of February 2026
Fiction , Alien, BDSM, Erotica -
Sweet Release on an Unknowm World by longing1989
«Eric and Helen are captured by aliens. Tortured by sex simulations that never allow orgasm, they escape to an unknown world where they can experience sweet release and fall in love.»
Rated 83.3%, Read 2880 times, Posted 6 days ago
Science-Fiction , Alien, Consensual Sex, Male/Female, Mind Control, Romance -
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 2778 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 81.1%, Read 2775 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 82.9%, Read 2757 times, Posted Wed 1st of April 2026
Fiction , Alien, BDSM, Exhibitionism, Voyeurism