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Alien

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The Drowned City: JJK AU (16+)The Drowned City: JJK AU (16+)7.6k

Investigate a coastal town's vanishing cult beneath the waves

roseofblood
A Strange Little FamilyA Strange Little Family123.5k

Marry an alien executive who adores you beyond reason

dorrying.
Three Aliens and One HumanThree Aliens and One Human346k

Flee captivity and win the hearts of three alien protectors

dorrying.
Lost in Orbit | Choso x YouLost in Orbit | Choso x You7.9k

Nurse a stranded astronaut back on a dying moon

PeachyGumm
Caged StarfireCaged Starfire70.3k

Resist a merciless alien warlord who claims you as fated mate

Ttyu33
Captive Cuteness: The Alien's ObsessionCaptive Cuteness: The Alien's Obsession12.6k

Resist an alien captor's obsessive, doting affection after abduction

YYoshiMathis
Alien Breeding ColonyAlien Breeding Colony124k

Serve your Xenomorph Queen's ravenous hive aboard a stranded station

Llagunov.08
Their Precious Little HumanTheir Precious Little Human8k

Charm your alien captors into treating you like royalty

YYoshiMathis
Trembling in His Blue ShadowTrembling in His Blue Shadow30.4k

Get claimed by a fierce Na'vi warrior on Pandora

Celestial glow
NeravisNeravis17.4k

Crash land on an alien world and bond with a warrior

Kep
Stolen Kiss, Sealed FateStolen Kiss, Sealed Fate2.2k

Fall into a secret alien war after one stolen kiss

aetaesxaela
Unlikely Alliance: A Predator's AwakeningUnlikely Alliance: A Predator's Awakening4.9k

Bond with a fearsome hunter stalking an alien jungle

Aacostar
Starshine and ShadowsStarshine and Shadows2.1k

When Nightwing meets the Justice League's ethereal new Tamaranean, he falls helplessly for the clueless alien beauty, unaware she sees his blushing devotion as just another strange Earth custom.

poopyfart
Alien AbductionAlien Abduction113

A small-town mechanic discovers that fixing alien refugees' broken spaceship is the easy part - keeping them alive when their hunters arrive is what will determine Earth's fate.

Ssolar_flare
Invincible: SunfireInvincible: Sunfire11.1k

When a crash-landed Tamaranean princess kisses Invincible to learn his language, the accidental gesture ignites a slow-burn rivalry with Atom Eve that threatens to reshape Mark Grayson's future—even as the Viltrumite War looms.

EUPHOR3A
Imprinted on Campus: My Alien Stalker MateImprinted on Campus: My Alien Stalker Mate2.5k

When reluctant insomniac Mickey crosses paths with Wari, an alien who imprints on her as his eternal mate, she must teach him to pass as human—before his otherworldly obsession exposes them both.

Ditto
Ben 10: Hero Time OutBen 10: Hero Time Out15.6k

Balance alien invasions and diaper duty as a teen hero dad

~Fanfic_girly~
The Cosmic ChuckleThe Cosmic Chuckle

When a failed comedian accidentally unleashes an ancient interdimensional joke that threatens to laugh the universe out of existence, he must team up with a humorless alien auditor to find the cosmic punchline before reality dissolves into eternal hilarity.

Eevelyn.poelman
Star-WalkerStar-Walker6.7k

Survive Pandora's jungle with the Sully family's protection

Mickeyy
Deepspace Desires: Rafayel's EmbraceDeepspace Desires: Rafayel's Embrace

Lost in the vastness of space, an unexpected romance blossoms between a brilliant scientist and a mysterious entity named Rafayel, forcing them to navigate their intense passion amidst the perilous unknown.

Ppastelskitty
Trials in tantalising spaceTrials in tantalising space2.3k

Battle for your father's star-spanning transport empire

Bbloodangel1500
Viltrumite VS kyrptonionViltrumite VS kyrptonion7.7k

A Kryptonian girl is ripped from her dying world and thrown into the brutal reality of the Invincible universe—a place where strength means survival, and mercy is often a weakness. Under a foreign yellow sun, her powers awaken far beyond anything she ever imagined, but so do the dangers. Surrounded by heroes who aren’t always heroic and enemies who don’t hold back, she quickly learns that this world doesn’t play by the rules she was raised on. As she struggles to control her abilities and hold onto her sense of self, she’s forced to decide: will she become a symbol of hope in a violent world, or adapt to it and become something far more feared?

Ddanielleacorn
Echoes of PandoraEchoes of Pandora

A disconnected Marine must bond with an exiled Na’vi to stop a human corporation from awakening an ancient, planet-killing entity beneath the floating mountains.

Bbarbosaninaamada
Worlds UnseenWorlds Unseen

A stranded xenobiologist must earn the trust of an alien hive-mind to prevent a human colonization fleet from annihilating the planet's sole superorganism.

Sste2024.2028