Best undertale stuff :3
7 stories
Blown Through The Rift (Gaster!Sans X Reader)  by BanthaBug
BanthaBug
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You were working with Alphys in the lab in Undertale when chaos strikes! In a freak accident, concentrated determination is mixed with an unnamed concoction and blow you through a dimensional rift. When you reawake, you find yourself in what seems to be the beginning of Undertale once again. Upset but not overly surprised, you make your way back to Alphys's lab... Only to find her lab assistant is no longer you! Working with Alphys now is a tall, punkish skeleton with two cracks in his skull and a snarky attitude. As they help you find your way home, will you find more than that? *I DO NOT OWN UNDERTALE OR GASTERTALE!!! I WISH I DID BUT I DO NOT! THIS IS JUST A FANFICTION!!*
Snowglobes  ∆Gaster!Sans x Reader∆ by BoltsAndBones
BoltsAndBones
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Highest Rank: #290 in Fanfiction ××× "Its a mad, mad, world out there, girlie. And your kind just makes it madder." Everyone has a lock. Some people are lucky enough to find someone who holds the key. Opal's lock has been rusted and unused for years. But when a bipolar skeleton wipes away the dust and doesn't mind the rust on her edges, she can tell she's in for one hell of a ride. ××× "That star looks like you." He said randomly, guiding your hand to see the star he was looking at. "How the hell is a star supposed to look like me?" You said, leaning your head on his shoulder. He ignored your sarcastic response and mumbled quietly to himself, "It's the brightest one of all." ×××
{R A T T L E D * B O N E S} ~ Sans x Reader by AvaRivera0
AvaRivera0
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You were walking on Mt.Ebott, when suddenly - you fall down a hole! You wake up there with no memory but your name, age and birthday (that might change, though...).
Mindless (Sans x Reader) by weeb-senpai
weeb-senpai
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What if you had no choice? You are being controlled by a Demon to kill your friends and the one you love over and over again. Each time you gain control over the demon it's usually too late. When you finally get close enough to stop the demon how do you manage? A SansxReader undertale fanfic written from your point of view. Cover drawn by rin-nishiki Completed
Lost in Despair (Lonely!Sans x Mute!Reader) by GamerQueen2002
GamerQueen2002
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Press your fingers together, zip your lips shut, and throw away the key. Once it's time to be free, go fetch that golden key and speak. Unless someone stole your golden key and threw it in the depths of the Black Sea; your nightmares and worst fears. ---- "Even if it kills me a second time." ---- The series- First book: "Lost in Despair" -Finished Second book: "No More Time" -Currently writing Third book: "Can't Hang On" -Work in progress
Just Like Before (A Gaster!Sans x Reader) by SimpleAutumnWest
SimpleAutumnWest
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♦Highest Rank :#714 In Fanfiction! ♦ Y/N fell down the Hole of Mt.Ebott when she was 8 years old. She lived happily with Toriel and with Other Monsters. She has a best friend named Gaster!Sans.She calls him 'Gas' for short. They always play at the Castle where Y/N's home is. Y/N broke the barrier before she and gas became Best friends. A few monsters went to the surface and a few monsters stayed because they love the underground too much. Y/N and Gas would always play together,from morning to night. They always had a crush on each other.but Toriel doesn't allow them to date because they are too young. But,one day Y/N was seperated from Gas and Toriel. Her Parents found out where she was and took her back to the surface. Y/N promised Gas That she will come back. That Moment was the Saddest moment of Y/N and Gas' Life. Until.... After a few years..... Y/N fulfilled her promise. and came back.... Will Her and Gas see each other again? Will Gas remember her? To find out,read the story!
 Solid Yellow Tear (Gaster!Sans x Caring Fem!Reader) by chaoticexplosion
chaoticexplosion
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A young girl would walked through the woods hiding from any human that would capture those. Until she heard a faint cry of the young girl who saved them from the under ground only then that would change her life, she hated seeing monster in pain, hurt, and tortured just because they weren't human.This young girl, would be you. <> Picture does belong to me and GSans belongs to Bourou.<>