New Sci-Fi Sex Stories
The newest free sci-fi sex stories — fresh tales added every night. Browse all Sci-Fi stories →
A battle-hardened drifter earns a very special reward from his sentient ship's mature female avatar.
I meant to fix her docking port but accidentally sank my cock balls-deep in her synthetic ass.
Married astrophysicist offers both holes to a two-cocked alien while her husband watches.
Married woman lets her husband fuck her senseless in an alien costume at a crowded Halloween party.
Widower Cody finally claims his eager android Heather in passionate sex.
Married Monica eagerly cuckolds her husband with an alien scout's 14-inch cock.
Last two survivors, Cody and his stepsister Gwen, fuck and breed to save humanity.
In 2147, best friends Hana and Xavier float together in zero-g and finally fuck on a runaway sci-fi space train.
In 2147, a wife watches through her cyborg husband's eyes as he breeds her with his glowing synthetic cock.
In 2147, a rugged surf coach pounds a glowing holographic tech in zero-G orbit.
Captain bonds with her hot holographic AI in a deep-space fuck session.
Captain's new sentient holo-AI begs to be her solid-light fucktoy in deep space.
A lonely space captain's secret holo-AI suddenly wakes up and fucks her senseless.
Void Captain discovers his holographic AI slut wants to be used rough.
Cyborg commander secretly fucks his holographic lieutenant to blow off deep-space stress.
Cyborg captain gets addicted to fucking his holographic AI mate in deep space.
Stranded in space, a cyborg's throbbing gravity cock makes Elara wet and desperate.
In 2147, a neural engineer gets mind-meltingly horny while syncing with her forbidden cyborg supersoldier.
Cyborg engineer Lena's nano-bot pleasure upgrade turns into wild sci-fi sex with coworker Jax.
Zero-G threesome ignites when stranded spacers Jax, Mira, and Lena fix their station mid-fuck.
Lone spacer bonds with flirtatious AI symbiote for zero-G nano-tendril ecstasy in space.
Captain beds her craving cyborg first officer to fix his glitchy groin implant.
Telepathic spacer captain mind-fucks engineer into zero-G surrender aboard their ship.
Lone spacer Jax unleashes a holographic harem of busty clones for a wild one-hour sci-fi orgy.
Sci-fi engineer merges with horny nanites for multi-hole ecstatic symbiosis in orbit.
Cyborg pilot Jax fucks busty engineer Lena amid quantum chaos on their starship.
Captain beds her loyal android first officer during a steamy spaceship repair in deep space.