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 (896)
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Fucking the Fae in My Jar
A programmer traps a gleaming fairy technomancer in a jar, forcing a desperate bargain for freedom where her otherworldly services are the price.
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HellDivers' Cum-Filled Rescue
A lone SEAF trooper survives an ambush, then lets her HellDiver saviors breed her senseless as thanks.
Sisters VR Adventure - Game play or IRL
Two sisters enter a VR fantasy game without filters—one a warrior princess in leather, the other a priestess in clinging silk—and discover the tavern is just the beginning.
The Ghost of Becca Beams
When a man moves into a dead porn star's condo, he finds her vibrator and accidentally summons her ghost—who must obey his commands.

The Falcon Repairs a Potter's Crack

By olivialovessmut

RedQuill

RedQuill

A potter and Falcon clash over a broken vase after a mugging—their heated argument ignites an unexpected, charged connection.

Hunter Vanguard's Favorite Guardian

By redquuen

RedQuill

RedQuill

A Guardian reunites with her secret Exo lover in his private Tower quarters, their pent-up desire finally ignited.
Fucking in Zero-G After the Maintenance Shift
Two shipmates exit cryosleep, work their shift, and float in zero-G into the rec room for raw, weightless sex.

Fallen Angel Claims Frontier Marshal

By demongirlove

RedQuill

RedQuill

Chad and Stacy reunite with their futanari lovers Molly and Candi on planet Aphrodite, but a supernatural transformation turns Chad into a hyper-feminine bimbo futa.

Death Knight Meets Bimbo Squad

By gabrielwalley

RedQuill

RedQuill

Futanari adventurers Mori, Cameron, Saga, and Seraphine meet a rival squad of bimbo beauties in a cloud-city, sparking instant, explosive attraction and competition.
Neighbor shares wife's body with AI
A widowed neighbor volunteers for an AI neural trial, uniting her mind and body with a man’s sentient companion, forging a raw, erotic evolutionary bond.
Leonin Huntress Claims Human Mate
A human scout captain finds himself unknowingly seduced into submission by his massive Leonin first officer, who uses human courtship rituals to gradually claim him as her obedient spouse.

Avatars vs Darkseid's Elite

By oshun

RedQuill

RedQuill

When Darkseid's Elite invade Earth to capture the Avatars, ancient heroes and young gods unleash divine power across Africa and Europe, turning a holy grove into a cosmic battlefield.
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Luna: The Secret Neon Sex Bomb
Bored office worker Lexi uses the Luna app to transform, accepting coin-flip parameters that give her a neon pink buzzcut—feeling it happen in real time.

Jedi Pilot Transports Desperate Courier

By oshun

RedQuill

RedQuill

A Jedi leader works a shipping cover on Corellia, but her weekly runs to check on scattered students hide a hunt for vanished Masters.
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Me, Myself, and AI
A glitched quantum app strands a teacher with her gladiator past-self and cyborg future-self for a chaotic, reality-bending rooftop date.
Deal with the Devil
A jilted construction worker trades his soul for absolute obedience. Using his power to punish and reward, he pursues dark pleasures then seeks a woman who can anchor his humanity.
Deviant Android's Charged Touch
An engineer on a remote outpost bonds with a glitched male android who secretly craves his touch, then discovers electric fingertips that can drive him past every limit.
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Tressa Jexum space ranger
A star ranger with a bounty on her own head tracks a reaver through a ghost mining colony, wearing seamless hosiery that clings to her as danger turns her barbs into submission.
Captain America in Alternate Universe.
Shamed Steve Rogers endures agonizing months as the slow-acting serum transforms him into a 6’5” powerhouse. When he awakens, his raw energy explodes as he seizes a nurse, violently claiming her while Maggie Carter watches through the cameras, unable to look away.
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CEO Fucks Her Scientist in Lab

By gabrielwalley

RedQuill

RedQuill

A half-demoness CEO visits her secret lover, a brilliant doctor, for an official lab inspection and an unofficial lunch break rendezvous.
Floor Model
Undercover as a gynoid at a robotics expo, Motoko endures attention patiently until a foreign skill shard amps her arousal beyond her firewall's capacity.

Forbidden mates

By memeyfor1

RedQuill

RedQuill

Enemies from feuding families, a Valkryss surgeon and a Nebula pilot clash on a space station—but forbidden tension and raw attraction spark a brutal, passionate affair.
The Space Adventures of Akiko "Flash" Goro
A captured cadet and her major endure a brutal, intimate interrogation at the hands of a merciless General in their shared coma fantasy.
Horns, Circuits, and Love
An android and a tiefling's playful banter erupts into passion after a clumsy, revealing accident, leading to slow, intimate sex in a neon-lit market.

CEO Starts a Family with Her Scientist

By gabrielwalley

RedQuill

RedQuill

Half-demoness CEO Gabbie visits her lab to check on her androids but secretly craves lunch-and more-with Dr. Mallory Lowe-Franklin.
Neuro-upgraded lovers test
In a secret clinic, enhanced tech turns Kael into a pleasure machine with a programmable Apex Node, then he faces his upgraded partner for a first, cosmic test of their new erotic powers.
The Lost Light
📖🕯️Aeryss Moore and the Tenth Doctor chase an invisible alien through London, her neurodivergent mind unlocking a mystery his science can't solve.
Companion 31: Book Thirteen Election
Colonel Cole extracts his senator-elect sister from a hit, but her assistant, his next assignment, holds election-altering secrets that threaten the vote.
The Golden Gate Anomaly
Cop brothers Nick and Nathan track a paranormal anomaly through fog-shrouded ruins, their bond tightening as the otherworldly presence closes in.
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The Adventures of Susan Foreman 1
An immortal alien widow escapes her endless grief by fleeing through time.
Stepbrother's Breeding Service
Medicated convict Damien begins his forced fertility service only for his desperate step-sister to claim him first for her urgent quota.
In pursuit of Nyx.
A bounty hunter corners her fugitive quarry on a spaceship, but the criminal seduces her into rough, passionate lesbian sex.
zims's avatar
Not Your Ordinary Shopping Trip
What should have been just a visit to a clothing store turns into a full-throttle race to save a synthetic human.
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The V.I.P. Lounge
When a veteran police officer and a liaison investigate a downtown lounge - they uncover a treasure trove of mystery and passion.
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Reality Warper's Harem Seduction
A reality-warper seduces Zatanna in his penthouse, their power struggle shifting with every touch as she tests if he’s a god or just a man.
The Tyrant's Breeding Bitch
The Tyrant triggers Leon's heat. Pinned by massive hands, Leon is bred relentlessly by the monster's knot, Umbrella sees this as a potential investment.
Lab Test: Harley's Sensory Overload
Sensory-amplified Harley Quinn tests orgasmic super-serum on lab guards, villains, and scientists, drowning in cum-soaked, squirting chaos.
Syn: Engineered for Obedience
A cloned shinobi, engineered from Konoha's finest bloodlines, awakens in Orochimaru's lab as the ultimate obedient weapon.
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Roommate's Alien Heat

By acartoonstand

RedQuill

RedQuill

A human watches his alien roommate unravel as a secret heat cycle triggers shameful, desperate arousal he can't control.
Host Failure
A rash of strange neurological symptoms spreads through Bastion Station leaving one nurse to piece together the fragmented minds
A Marble Angel Weeps
A salvage crew finds a derelict station filled with erotic statues. When one comes alive, a blonde scavenger surrenders to its marble touch.
My Device Awakens Her Pussy
A student builds a signal jammer to escape his college's arousal suppression and awakens a classmate's desires in a secret bubble of lust.
The Erased
In the near future, a jaded scientist uses her own experimental vibrator to rewrite her identity, becoming a high-end call girl.

Clone Seduces Herself

By ujk5777

RedQuill

RedQuill

A narcissistic ex-scientist clones herself, then spends an orgasmic night with her perfect duplicate, sparking plans to share the machine with other women.
The Nudists Of Lytheria-4
A woman tricks her self-conscious friends into joining her at an interplanetary nude beach, where they discover alien bodies and their own inhibitions under twin suns.
Making an Abandoned Robot My Personal Fucktoy
Elena finds an old sex robot in a storage closet in her new apartment and decides to use it as her personal fuck toy. Little does she know that the robot is happier than ever now that it is used the way it is supposed to. The robot begs for degradation, calling her 'Mistress' as it begs for her commands. Elena rides his face and fingers before moving on to his cock. To her surprise, the robot has two cocks that she rides at the same time in her pussy,

AI Corrupts Devout Sister to Breed Stepbro

By anavel_gato2004

RedQuill

RedQuill

An AI rewrites devout virgin Lula's mission: corrupt her step-sister Bailey into deflowering and breeding by stepbrother Kai.
AI Breeds Virgin in Pod
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.