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Sci-fi Stories
Read stories about the limitless possibilities of the cosmos and the human spirit. Dive into tales where advanced technology intertwines with deep emotional and moral dilemmas.
Stories (894)
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Popular (All Time)
AI Corrupts Devout Sister to Breed Stepbro
By anavel_gato2004
RedQuill
An AI rewrites devout virgin Lula's mission: corrupt her step-sister Bailey into deflowering and breeding by stepbrother Kai.
by
anavel_gato2004
33
0
0
2
Virgin gymnast's first breeding in an AI-guided glass pod with her two best friends, climaxing in a shared creampie and a squirting orgasm.
by
anavel_gato2004
33
0
0
2
A cocktail party ends in abduction. Linda awakens collared, led to an alien bed as Dave watches, chained and forced to feel every thrust into his wife.
by
😈
mikey20070
33
0
1
7
A paraplegic content creator merges with an alien parasite that feeds on humans, while a blind student, a teen crime boss, and a detective each hunt it for their own reasons.
by
💫
velithyas_simp
33
0
1
50
When his wife’s cheating is confirmed, a man’s about to call his solicitor. A desperate, sexy time traveler arrives to stop him—and save the world.
by
jimlynndickson
33
0
0
10
On her 18th birthday, a sheltered female clone raised in isolation faces a new obedience test. Her young female caretaker must assess her innocence by introducing a man for the first time.
by
jgtd355hg
33
0
0
4
Alien experiment: a prepper carpenter chooses five women to save from being stranded, then reveals he scammed unlimited supplies.
by
🌙
ronan
33
0
0
13
Rogue Squadron pilots Corran and Mirax fuel post-mission heat with a frantic tryst in his X-Wing cockpit.
by
amera0780
4.7
33
0
0
1
Battletech universe. Genetically engineered super-soldiers. Elite warriors without remorse. Elementals. And Lulu Cox wants to be one of them - But how bad?
by
💋
dmautoalternate
33
0
0
1
Linda is a synthetic escort, indistinguishable from a human. Stunningly beautiful, her features have been derived from millions of images of human beauty.
by
thechris
4.0
32
0
0
4
Moth Queen's Human Mate
By wolfid
RedQuill
A human is chosen by a voluptuous alien queen to mate and save her species, discovering her twin bulges and stacked breasts.
by
🍒
wolfid
32
0
0
11
A nebbish scientist falls into his gender-swapping machine, emerging as a voluptuous blonde as the agonizingly pleasurable transformation rewrites his body.
by
🖤
jasonpfeil
5.0
32
0
1
2
Young duke Nox returns to his crumbling homeworld, inherits the throne as his parents flee, and must command a disgraced council and a brutal neko uprising to save his dying planet.
by
🍒
ffdrake
32
0
0
19
An introvert stalks a coffee-shop reader to build his dream: a woman available for sex and conversation, then gone. One isn't enough.
by
💜
voidstar
32
0
0
23
Struck by lightning, a bullied nerd turns invisible and decides to take revenge on all his bullies... one by one....
by
🍷
pancaked
32
0
0
10
An Extra with no life beyond washing dishes becomes a Cast Member when his apartment is destroyed—now he has a past, a problem, and $20.27.
by
randeknight
32
0
0
59
A time-traveler haunted by lost lovers meets another in ancient Constantinople, drawn into a seductive mystery that repeats across centuries.
by
🍑
dilandau
32
0
0
8
I'm at a protest and the police fire a crowd control device at us. Suddenly my cock is harder than steel and I can't keep my eyes off the curves next to me
by
🔥
deviantki
32
0
0
3
Hired straight out of high school for a secret government office, an eighteen-year-old finds a backdoor to every camera on Earth—then scans for the hottest woman masturbating through glasses-cam.
by
🔥
deviantki
31
0
0
1
A trans man becomes a woman overnight via nanites at a Devil-run luxury resort, then must attend mandatory nightly orgies and recruit others before serving six months in Hell's brothels.
by
🔥
albertop
31
0
0
58
A downed alien ship holds eggs that turn male crew into horny superwomen who ravage a junior officer as he struggles to escape their breeding frenzy.
by
ohmyno
5.0
31
0
0
2
The Rescue (OmegaxOmega)
By cinnamonpuppy
RedQuill
An omega engineer rescues a drugged younger omega from a predator at a bar, only to end up alone with the feverish, heat-struck stranger in his apartment.
by
🍒
cinnamonpuppy
31
0
0
10
A civilian xenobiologist unlocks devastating psychic powers during a Za'kari attack, then rejects every polished S-Class shifter offered to her—until she meets the blunt snow leopard who wants this pairing as little as she does.
by
🫦
angel0y
31
0
0
12
Abducted twink fox Foxy, a shell-shocked slave, is torn from brutal slavers when Team StarFox raids their ship. Fox McCloud sees his own lost youth and takes the broken kitsune in as crew.
by
akaikitsune
31
0
2
28
An unbound Vulcan commander chooses to balance her bond with her human lieutenant, transforming duty into deliberate desire in his cluttered quarters.
by
lexinthedark
31
0
0
57
Alien Explorer's Pheromone Overload
By omegaprime1
RedQuill
Deep space explorer Vaquel Di and her Chairbot succumb to alien pheromones, sparking a promiscuous freeuse orgy with bizarre lifeforms.
by
omegaprime1
5.0
31
0
0
5
Fucking My Interdimensional Sex Toy
By story_gamer
RedQuill
When Kai's new toy speaks, he discovers it's a dimensional researcher - and their shocking connection turns intensely intimate.
by
story_gamer
31
0
0
2
A convicted hacker trades prison for an AI breeding machine, enduring piercings and relentless arousal as robotic arms milk and fuck her toward forced impregnation.
by
anavel_gato2004
30
0
0
2
A Betazoid counselor's empathic powers ignite a Klingon captain's primal desires during her first tour of his ship, blurring duty into dangerous pleasure.
by
lutherb
5.0
30
0
0
3
Three universes collide as superpowered champions are abducted by a cosmic entity demanding explicit sex or annihilation.
by
coyboy
5.0
30
0
0
3
The Doctor, Amy and Rory explore the infinite yellow corridors of the Backrooms only to flee a roaring entity and return to find their TARDIS has vanished.
by
✨
kuzco
30
0
0
64
During a raw omega-alpha-beta threesome, Bill’s stomach twists hot after Kyle’s knot slips. His pack realizes he hasn’t had a heat in eleven weeks—and the truth settles their world.
by
❤️🔥
badrzr
5.0
30
0
0
9
A woman wakes to find time has stopped all over the world. And she’s the only one left.
by
🌙
jprew
30
0
0
8
Jaeger Pilot Helps Lost Titan
By omegaprime1
RedQuill
A Jaeger pilot recognizes the sign language Kong uses to communicate, forging a bond between species as the alien Kaiju threat unites their worlds.
by
💫
omegaprime1
5.0
30
0
0
11
A lone ensign on a hive planet finds her translator failing as graceful insectoid aliens seduce her with touch and pheromones.
by
thejosh777
30
0
0
5
Testing a new machine, studious Anita's mind travels to different times, different sexual experiences, until learning its true purpose.
by
wolfox
30
0
0
14
Two sheltered Christian homeschool girls enter a glowing phone booth vending machine, trading their virginity for impregnation in a sterile, automated ritual.
by
anavel_gato2004
29
0
1
3
A transporter-phobic officer grabs a wormlike entity in the matter stream, emerging swapped into a female crewmate’s body—now he must wait days for rescue while trapped in her form.
by
randeknight
29
0
0
8
A female scientist is turned into a man and learns her new body from a stripper—secretly an undercover cop—in explosive intimacy and a dangerous mission.
by
🍒
orangesky
29
0
0
10
Milf Seduced by Himbo Demon on Beach
By demongirlove
RedQuill
On a SoCal beach, a MILF bimbo in a barely-there bikini locks eyes with a demon himbo. Their mouths meet, tongues explore, and sandy hands roam until sex on the beach becomes more than just a drink.
by
🖤
demongirlove
29
0
0
1
A female Kendar navigator's heightened pheromone sensitivity goes into overdrive when she's trapped on a dead ship with the only human engineer who can fix it.
by
jimlynndickson
29
0
1
14
Narcissistic Banker and his Clone
By walkershusband
RedQuill
A narcissistic billionaire buys a perfect clone of himself—only to discover his double fights for dominance, forcing them both to surrender control.
by
🌙
walkershusband
29
0
0
9
Eldar Howling Banshees defend with psychic seduction, but things go awry. Or do they?
by
thejosh777
29
0
0
8
A sawmill worker's accidental death earns him a second life in a magical realm, gifted with the power to make any woman he desires feel his lust.
by
✨
mcsomething
28
0
0
18
In 22nd-century Arizona, a researcher alone in her autonomous Rivian Nimbus finally activates the car's controversial pelvic stimulation array during her commute.
by
01spassvogel
5.0
28
0
2
1
Survival Fuck with Bunker Girl
By crimsoheart777
RedQuill
Awakened early from cryo, Jessi finds a desperate woman hacking his bunker to escape the zombie horde. He unlocks the blast doors, mows down the infected with a SAW, and pulls her inside to safety.
by
🌶️
crimsoheart777
28
0
0
4
Agent's Hypno-Cock Conditioning
By iwillsubmittosir
RedQuill
Michael ambushes Nikita, using hypno-cock and fluid bonding to addict her to his cock and cum.
by
💋
iwillsubmittosir
28
0
0
1
A young man’s duty to repopulate a dying spaceship forces him into a taboo act with his mother.
by
💜
nonorthman
28
0
0
3
RedQuill