Aliens FanFiction

Peter Parker and Miles Morales

Peter Parker and Miles Morales

F/M
R
Updated
10.04.2025
Fandom
The Avengers (Marvel Movies) Spider-Man - All Media Types
Characters
James "Bucky" Barnes, Steve Rogers, Bruce Banner, Clint Barton, James "Rhodey" Rhodes, Happy Hogan, Kate Bishop, Ned Leeds, Stephen Strange, Pepper Potts-Stark, Morgan Stark, Sam Wilson,
Tags
Fluff Hurt/Comfort Whump Domestic Avengers Peter Parker gets a sidekick Peter Parker has 51 existential crisis Miles Morales give Peter heart attacks Peter Parker is the unofficial leader of the Avengers Ned and MJ are gonna get married Peter is not happy about that Morgan and Peter are unofficial siblings Okoye is cool
Peter Parker's life sucks, kind of, then Miles decides to show up, instantly getting Peter shot and tased. Let's just say the latter is grumpy about that. Only problem: he sees himself in the boy so eager to help others, and can't help but step in an...
Remus Lupin and the Aliens from Orion

Remus Lupin and the Aliens from Orion

Multi
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Evan Rosier, Barty Crouch Jr.,
Tags
Fluff Alternate Universe - Modern Setting Other Additional Tags to Be Added Eventual Romance Hurt/Comfort There Was Only One Bed Domestic Fluff Aliens Light Angst Crack Treated Seriously Mild Sexual Content Strangers to Lovers
“So let me get this straight,” James began, putting his glasses back on and running a hand through his hair. The two brothers stopped their movements and looked at him in sinc, “You two are aliens and got kicked out of your galaxy-”“Constellation..”...
An Immovable Object: An SCP Tale Set in the HDG Universe

An Immovable Object: An SCP Tale Set in the HDG Universe

F/F
G
Updated
11.04.2025
Fandom
Human Domestication Guide - GlitchyRobo SCP Foundation
Characters
Original Characters, Original Trans Character(s), Original Female Character(s)/Original Female Character(s), original - Relationship, Original SCP Staff (SCP Foundation), Original O5 Council Member (SCP Foundation), Affini Character(s), Floret Characters (Human Domestication Guide)
Tags
Character Death Other Additional Tags to Be Added Blood and Injury Aliens Memory Alteration Minor Character Death Horror Inspired by SCP Foundation No beta we die like scp 1762 transfem Far Future Sci-Fi
The SCP Foundation is a group dedicated to preserving Normalcy.The Affini Compact wants to domesticated mankind. The Foundation dislikes this.--------------Ali Hanover is a Foundation Field Agent, recently assigned to Operation Floral Skies, the Foun...
The Adventures of Jones & Walter

The Adventures of Jones & Walter

F/F
F/M
M/M
Multi
G
Updated
11.04.2025
Characters
Original Characters, Original Female Character(s), Original Male Character(s), Original Trans Character(s), Original Non-Binary Character, Original Child Character(s), Original Non-Human Character(s), Original Alien Character(s), Original Human Character(s), Original Animal Character(s)
Tags
Depression Character Death Blood and Injury Blood and Gore Gore Fear Trans Male Character Implied/Referenced Suicide References to Depression Implied/Referenced Self-Harm Aliens Implied/Referenced Child Abuse
Walter Rogers and his new found "buddy" from the Academy of Space Exploration & Research Jones Smith get sent into space to explore the galaxy. But with the encounter of an abominated Praying Mantis plans change and end up trying to save two new...
Star Light Star Bright (There's an Alien in My F#king bed))

Star Light Star Bright (There's an Alien in My F#king bed))

F/F
F/M
M/M
G
Updated
11.04.2025
Fandom
South Park
Characters
Craig Tucker/Tweek Tweak, Kyle Broflovski/Stan Marsh, Kyle Broflovski, Clyde Donovan, Stan Marsh, Kenny McCormick, Bebe Stevens, Wendy Testaburger, Craig Tucker, Tweek Tweak, Tolkien "Token" Black, Eric Cartman,
Tags
Aliens Gay Gay Male Character Gay Character Everyone Is Gay My First South Park Fic Canon Gay Relationship Canon Gay Character Alien Culture Alien/Human Relationships Alien Character(s) Aged-up South Park Characters
One Friday night, home alone, 16-year-old Craig Tucker finds, what seems to be, an alien in his fucking bed.
The Nightfall of the Planet.

The Nightfall of the Planet.

M/M
G
Updated
14.04.2025
Fandom
Original Work
Characters
Regulus Black/Barty Crouch Jr., starkiller - Relationship, Reggy, Bartolomeu
Tags
Aliens Science Fiction Philosophy Alternate Universe - Science Fiction
In a future where humanity is on the brink of extinction, "The Nightfall of the Planet" reveals the struggle of Bartolomeu, a human survivor, to preserve the memory of his species amidst a new alien order. After the invasion of the Jumalttinos, an ad...
Animorphs Just Add Magic!

Animorphs Just Add Magic!

F/F
F/M
Gen
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Animorphs - Katherine A. Applegate
Characters
Harry Potter, James Potter, Lily Evans Potter, Dursley Family (Harry Potter), The Three Peverell Brothers (Harry Potter), Jake Berenson/Harry Potter, Rachel/Tobias (Animorphs), Rachel (Animorphs), Jake Berenson, Tobias (Animorphs), Marco (Animorphs), Cassie (Animorphs),
Tags
Angst Magic Aliens Alien Invasion Crossover Crossovers & Fandom Fusions because I say so MxM - Freeform Transforming transferring Harry is a sassy shit who gave Harry Potter a knife
Harry James Potter has gone to boarding school, had strange unexplainable powers, and lived with the Dursley’s since he’s remembered. But now, his life is being uprooted and moved to California with his Cousin Tobias, their estranged uncle Nick, and...
The Doctor's Girlfrend

The Doctor's Girlfrend

F/F
G
Updated
12.04.2025
Fandom
Doctor Who (2005)
Characters
Yasmin Khan, Rose Tyler | Bad Wolf, The Doctor (Doctor Who), Rose Tyler, Thirteenth Doctor/Rose Tyler, Graham O'Brien, Ryan Sinclair, Thirteenth Doctor, TARDIS(es) (Doctor Who), Thirteenth Doctor's Fam (Doctor Who)
Tags
Fluff Alternate Universe - Canon Divergence Aliens Falling In Love Alien Invasion Reunions Bisexual Female Character Forehead Kisses Immortal Rose Tyler Alien/Human Relationships No Spoilers The Doctor Loves Rose Tyler
In which Rose Tyler is forced to go back to her own universe after the destruction of the alternate universe she used to call her home.
Cross-Pollination

Cross-Pollination

F/F
Multi
G
Updated
12.04.2025
Fandom
Human Domestication Guide - GlitchyRobo Human Domestication Guide
Tags
Aliens BDSM Trans Female Character Drugs Consensual Non-Consent Pet Play breath play
Two terrans and two affini enter a propaganda campaign to ease terran fears in the wake of the Human Domestication Treaty. They will play the part of florets and owners, but only for the benefit of the cameras. But what about behind the scenes?Part o...
If only we were the same person

If only we were the same person

F/M
Other
G
Updated
19.04.2025
Fandom
Harry Potter - J. K. Rowling The Avengers (Marvel Movies)
Characters
Harry Potter, Loki, Fury - Character, Loki (Marvel) & Harry Potter, Avengers - Character, Clint/Natasha
Tags
Magic Father-Son Relationship Aliens Avengers Family Self-Indulgent AU Feels Loss of Parent(s) dark themes Dimension Travel Not really though Cute Harry Potter
Landing in the middle of a room with guns pointing at your head and a man proclaiming himself as god is probably the weirdest thing ever. Especially when said god takes interest in you and some random agent puts you in a cell....and when that god vow...
SPOP: Season 6 Episode 2 - "The Same, But Different"

SPOP: Season 6 Episode 2 - "The Same, But Different"

F/F
G
Updated
12.04.2025
Fandom
She-Ra and the Princesses of Power (2018)
Characters
Adora/Catra (She-Ra), Adora (She-Ra), Catra (She-Ra), Perfuma (She-Ra), Entrapta (She-Ra), Glimmer (She-Ra), Bow (She-Ra), Bow/Glimmer (She-Ra), Angella (She-Ra), Perfuma/Scorpia (She-Ra), Netossa (She-Ra), Spinnerella (She-Ra),
Tags
Magic Aliens Friendship Love Fantasy Marriage Proposal Screenplay/Script Format Dimension Travel Father-Daughter Relationship Outer Space
I didn't want She-Ra to end... so I'm writing more! Please enjoy my fan-version of Season 6 Episode 2 of She-Ra, and make sure you read ep. 1 first: https://archiveofourown.org/works/26517166Episode 3 available now here: https://archiveofourown.org/w...
Undress

Undress

F/F
F/M
G
Updated
12.04.2025
Fandom
Supergirl (TV 2015)
Characters
Kara Danvers/Lena Luthor, Kara Danvers, Lena Luthor, Original Danvers-Luthor Child(ren), Liran / Roan
Tags
Fluff and Angst Aliens Falling In Love Bullying Cute Supercorptober 2020
First day of school for Liran, Luna and Dawn. One of them finds the love of their life but at what cost?
When I Said Take Me to the Moon (I Never Meant Take Me Alone)

When I Said Take Me to the Moon (I Never Meant Take Me Alone)

F/F
M/M
G
Updated
12.04.2025
Fandom
Chicago Med
Characters
Ava Bekker/Sarah Reese, Elsa Curry/Sarah Reese, James "Jimmy" Lanik/Crockett Marcel, April Sexton & Noah Sexton (Chicago Med), Ava Bekker & April Sexton, Ava Bekker, Sarah Reese, Elsa Curry, Noah Sexton (Chicago Med), April Sexton, Will Halstead, Connor Rhodes (Chicago Med),
Tags
Character Death Murder Blood and Gore Murder Mystery Post-Traumatic Stress Disorder - PTSD Aliens Pining One-Sided Attraction Anxiety Disorder Science Fiction Alternate Universe - Among Us (Video Game) Setting Implied Relationships
Eight astronauts and their captain were dispatched on the Gaffney Mission, instructed to collect data of the uninhabited planet of Bilra and return home after a thirty day research period. On day twenty nine, a massive storm damages their ship and ca...
Luminary of the Stars

Luminary of the Stars

F/F
F/M
Gen
M/M
Multi
G
Updated
12.04.2025
Fandom
New Dangan Ronpa V3: Everyone's New Semester of Killing
Characters
Momota Kaito, Akamatsu Kaede, Iruma Miu, Yumeno Himiko, Yonaga Angie, K1-B0 (Dangan Ronpa), Chabashira Tenko, Oma Kokichi, Shinguji Korekiyo, Harukawa Maki, Saihara Shuichi, Amami Rantaro,
Tags
Aliens Alternate Universe - Non-Despair (Dangan Ronpa) danganronpa - Freeform space Dangan Ronpa Spoilers New Dangan Ronpa V3 Spoilers danganronpa v3 Plague
Kaito's always known that he was destined to be in space. At long last, he gets his chance when he's chosen to be part of a crew of sixteen Ultimates specifically selected for what might be the most badass mission possible! All they have to do is bea...
36 Hours

36 Hours

F/F
M/M
G
Updated
12.04.2025
Fandom
Original Work
Characters
Original Female Character(s), Original Male Character(s), Original Alien Character(s), Original Human Female Character/Original Human Female Character, Original Human Male Character/Original Human Male Character, Original Human Female Character(s), Original Human Male Character(s), Original Male Alien Character, Original Female Alien Character
Tags
Betrayal Established Relationship Aliens Death Future Humans Destruction Past Gayness First time actually posting on here Saving stuff Team
A team from the future has to find a way to stop a nuclear bomb from going off in the past. Oh and there are aliens and gays involved. What could go wrong?...
No Eyed Girl

No Eyed Girl

F/F
G
Updated
13.04.2025
Fandom
Homestuck
Characters
Rose Lalonde, Kanaya Maryam, Rose Lalonde/Kanaya Maryam, Rose's Mom | Beta Roxy Lalonde
Tags
Self-Harm Implied/Referenced Self-Harm Aliens Obsession Alien Biology Apocalypse Kinda Alien Invasion Ambiguous/Open Ending Songfic Insanity Song Lyrics
Knowing what we know, knowing what we don't knowThis is gonna change our worldFeeling how I feel, I'll accept the unrealIf you be my no-eyed girl Rose Lalonde tries to summon an other-worldly being, and gets her wish.
Oasis

Oasis

F/F
F/M
M/M
G
Updated
13.04.2025
Fandom
Tokyo Ghoul
Characters
Kaneki Ken/Nagachika Hideyoshi, Kirishima Touka/Kosaka Yoriko, Nishino Kimi/Nishio Nishiki, Kaneki Ken, Nagachika Hideyoshi, Kirishima Touka, Commission of Counter Ghoul | CCG, Takatsuki Sen | Eto, Mado Akira & Amon Koutarou & Nagachika Hideyoshi, Mado Akira, Takizawa Seidou, Amon Koutarou,
Tags
Magic Aliens Alternate Universe - Future Alternate Universe - Space CCG Nagachika Hideyoshi no ghouls (they are something else)
"Or, maybe we’ll be in luck and only crash into the planet and get kidnapped by weird magic cat people… who’ll keep us as slaves for the rest of our lives.” Hide had been joking. So why has Every. Single. Freaking. Part. Of that sentence, except the...
In the Pursuit of an Alliance

In the Pursuit of an Alliance

F/F
M/M
G
Updated
13.04.2025
Fandom
Homestuck
Characters
Karkat Vantas, Jade Harley, Dave Strider, Feferi Peixes, Rose Lalonde, John Egbert, Jade Harley/Rose Lalonde, John Egbert/Dave Strider, John Egbert & Karkat Vantas
Tags
Aliens Alien Cultural Differences Alien Culture For Science! troll!John Scientist!John and alliances Albino Dave John is a troll and a scientist Threshecutioner Karkat
Johnen Egbert is about to embark on an journey of scientific discovery with his moirail Karkat Vantas. He will attempt to learn more about the humans of earth by disguising himself as one of them. Once enough information is secured, the Alternian Emp...