Undertale
98 stories
That Damn Skeleton!  (Sans X Reader) by honey_fae_
honey_fae_
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Him. The one that you've been talking to for years now. Always behind the ruins' door. Of course you had assumed he was a monster. But.. Not a skeleton! How is that even a monster? Its part of a human's body. He's sweeter than you'd imagine him being to you, even helping you leave the ruins, for good...Yes of course you didn't want to leave Toriel's but, it got boring and repetitive. (First good prologue ever!)
CivilTale [AU] (FOR SALE!) by PineappleGalore001
PineappleGalore001
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When the Civil War of the United States matches up with the War between Monsters and Humans. Info + story An AU that I literally made up in the shower one night...
Love Me Instead [Sans VS Gaster!Sans X Reader] Part 2 (EDITING) by PineappleGalore001
PineappleGalore001
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Please read part 1 if you haven't! When a mishap in a reset happens and a character from another version is transported into the current world and timeline, what happens? Gaster!Sans, bad-skele-boy from EchoTale is confused to see that he had landed in a different, yet familiar world: Undertale! Apparently, in meeting with his 'original' version, they seem to be OK with one-another, UNTIL... (Thank you, @yourebluenow for the cover!) If you have not read part 1, look for it! It has the same name and cover, but without 'Part 2' on the title.
Love Me Instead [Sans VS Gaster!Sans X Reader] (EDITING) by PineappleGalore001
PineappleGalore001
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When a mishap in a reset happens and a character from another version is transported into the current world and timeline, what happens? Gaster!Sans, bad-skele-boy from EchoTale is confused to see that he had landed in a different, yet familiar world: Undertale! Apparently, in meeting with his 'original' version, they seem to be OK with one-another, UNTIL... (Thank you, @yourebluenow for the cover!) Book 2 Is here! it has the same name and cover, but with 'Part 2' in the title! https://www.wattpad.com/story/70011017-love-me-instead-sans-vs-gaster-sans-x-reader-part
Aftertale Sans x Reader by UndertellSwasterSans
UndertellSwasterSans
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This is for those who think aftertale sans is either hotvor adorable.
All Tied Up (Error Sans x Reader) by EpicMaster2357
EpicMaster2357
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> Your just a regular human that fell down the hole that supposed lead to the underground, you come across many obstacles and find yourself in much of a sticky situation, more or less your tied up. •IMPORTANT• Hello wattpad users, this is actually the first story I'm actually making. So I'm sorry if it's suckish or terrible, but it's my first try I'm sorry! Ahem.. Anyways... I'll try to update once or twice a week and if I ever forget, then....then... I don't actually know what I would do...but anyways enjoy!
Dying Light (Sans X Reader) (sad) by Flutterbat276
Flutterbat276
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Like the title says, it's gonna be sad. But there is a happy end to it I promise!
Undertale {Sans X Reader} by x_golgothasTerror_x
x_golgothasTerror_x
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{Please remember, this is my first Undertale fanfiction. I was still new to the game and fandom itself, so I didn't have all the lines from the characters memorized by heart just yet. I'm not going back to change anything, because I don't think it'll be the same if I change it. Thanks for understanding and please enjoy the story!!!} Y/n decided to take a dare her dumb friend Carla (sorry if that's your name) told her to do. Y/n was dared to climb up Mt Ebott and back down in at least 1 day. The problem was that anyone who went up Mt Ebott, never came back. Will y/n try and complete this stupid bet, or stay and make new friends in this mysterious new place?
Fallen >> An Undertale FanFiction (Sans X Reader) (Discontinued) by Melody4164
Melody4164
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(Y/N) fell down into the Underground when she was a child. After a near death experience and being saved by a goat-like woman, named Toriel, (Y/N) decides to stay with her. Nearly ten years later, (Y/N) starts having nightmares about a flower, a blue light, and a name. Chara. Then another human falls. Their name is Frisk and (Y/N) decides to go with them on their journey back to the surface. (Y/N) wants to protect Frisk and get answers. To do that she must leave the ruins and travel through the Underground. Frisk and (Y/N) will meet many foes and friends. She may even fall for a certain pun-loving skeleton. *Please note that Frisk's gender will not be specified* Disclaimer: I do not own the cover. I do not own Undertale. Undertale belongs to Toby Fox. I only own my plot.
Princess of the Underground (Gaster!Sans x   Female Reader) by Nellie_Cake25
Nellie_Cake25
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[Y/N] lived with her adoptive mother Toriel for a while. How long is that? About three years. Throughout the time, the monsters in the Ruins know her as if they were her siblings. Flowey became way nicer each day around her, losing his soulless behavior. He cares about her so much he promise to protect her. All was well... Until she sneaked out of the Ruins. Going from Grillby's to the Librar(b)y, she went around having fun. Laws did apply, 16 being the age to leave past curfew, 18 being the age to finally date, and 21 to legally marry. One day, I slipped from my own mouth of the presence of a Princess... And Asgore ordered the Royal Guard to break the door to the Ruins... (Cover art made by Zayn-Inverse on DeviantArt)