Gravity Falls Alien Sex Erotic Fiction Stories

284,665 results
Orientation
Length
Source
Infinite Scroll

Universal Sexuality

by Shale on Sep 15, 2017
Reviews & Essays

For those not familiar with Playboy magazine, Asa Baber writes a column on men each month, usually a masculinist interpretation of relationships with women. His essay in the December, 95 issue was titled "multisexual in 1996," and started as an exploration of bisexuality when one of his old cronies confessed to a new found sexual identity. However, Baber ran...

Writing Sci-Fi

by al_Ussa on Sep 14, 2017
How To

Sci-fi... science fiction. The very word conjures to mind spaceships, intergalactic civilization, laserbeams and robots. Or, maybe it just conjues up images of slightly overweight nerds in glasses who are obsessed with TV shows and live in their parents basement. Which is unfortunate, even if there is some grain of truth in it. I'll admit it. I'm a little n...

The Princess Of Mahoon: Chapter 2

by theowlandtherose on Sep 16, 2017
Sci-Fi & Fantasy

The Princess of Mahoon is a fantasy meant to combine pulp science fiction with more erotic themes. Thanks to everyone for the incredible feedback on Chapter 1. As chapter 2 begins, Aklia the princess scout has caught and bound a Sadeerian warrior. In her haste to claim her prize and improve her standing in the Tribe, she prematurely mounts her captive, only...

Ship's Whore Ch. 08: Destination

by AlinaX on May 19, 2020
Sci-Fi & Fantasy

It's strange to think there was a time when Humanity was all alone, its knowledge of the wider universe limited to what it could glimpse through telescopes from Earth. Scientists peering into the night sky, searching for evidence of life, or even just its possibility. Their excitement over glimpsing the tell-tale traces of planets about other stars, especial...

Voyage of the S.S. Strongarm

by MrFinesse on May 16, 2018
Science Fiction

You are the lone pilot too the S.S. Strongarm, a lightspeed fast exploratory vessel meant for deep space expeditions and you hava very important mission. About a year ago, the First Galactic Power, or the FGP, recorded an unexplainable anomoly far beyond the mapped regions of space. They don't know what it is or why it's happening, but it seems to be emanati...

Open in Reader

Breeding Planet

by Robopoop on Jun 6, 2018
Science Fiction

Author's Note: I noticed that this story has not been edited properly to make better sense. Will be working on it when I get the time. It seemed like it was only yesterday when society seemed to suddenly appear a little different. People began to act strangely after new facets of necessity appeared from out of thin air. When it began, individuals received no...

Open in Reader

Shaven: Mauricio's Point of View

by Gorev_Reighl on Sep 14, 2017
Erotic Couplings

Mauricio sat propped up against the headboard and his mind drifted to thoughts of cheese. Specifically Swiss cheese, filled with holes, and turned purplish black from being left out of the Kenmore refrigerator. He giggled to himself. "Cheese" he thought. For a moment he felt the dread that had awoken him from a deep satisfying sleep lift and his eyes blinked...

Dancing in Zero G

by AeternaLee on Sep 13, 2017
Celebrities & Fan Fiction

Captain Michael Korvalis and I had been avoiding each other as much as is possible on an Akira class starship since I arrived on board three months ago. The U.S.S. Olympus was a long range science vessel exploring the far reaches of the milky way galaxy. My duties as assistant to the Chief of Engineering kept me very busy and thankfully away from the bridge....

SEEDSHIP

by XirixSolaris on Jun 5, 2020
Science Fiction

After humanity faced possible extinction, a different threat appearing before them each time they triumphed, they realised that a future on Earth would never be possible, and if they didn't die from a virus, sooner or later, the environment would produce mutants or volcanoes would erupt simultaneously, or a black hole would destroy them all. Point is, they n...

Open in Reader

Gravity Falls

by TylerUchiha on Jul 17, 2018
Fan Fiction

Your name is Lance Pines and you mom sends you, your sister Mabel, and your brother Dipper to Gravity Falls, Oregon. You arrive at your Gruncle Stan's home....which is also a tourist attraction? You and your sister share the attic and your brother has his own room. Which seems dumb, but you had no power choosing where to sleep. You and Mabel unpack, the atti...

Open in Reader