Undertale
61 stories
Now and Forever (Reaper!Sans x Reader) by UndertellSwasterSans
UndertellSwasterSans
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what will happen when you suddenly come face to face with death itself. will you run to escape or fall inlove and accept fate.
Should I Kill You or Kiss You? (Underfell Sans x Reader)  by UndertellSwasterSans
UndertellSwasterSans
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"I should've killed you when I had the chance."
Underfell Sister Scenarios [ON HOLD] by NyaNyaSenpai_Kitty
NyaNyaSenpai_Kitty
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You, Y/N, are the sister of Underfell Sans and Papyrus. I make scenarios about these. WARNING-BLOOD AND VIOLENCE! All original characters belong to Toby Fox
UF!Sans X Reader (Finished) by _The_Creator_
_The_Creator_
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Unlike other stories, monsters and humans have already joined. Nothing was ever easy for you AT ALL. Your mom died when you were 6, and ever since then, your dad was.... different. Your a 17 year old girl, and you ran away when you were 15. You decided you couldn't take the pain. Hope you enjoy my story, and sorry if I misspell some words. Autocorrect never works correctly.
Sans x Reader Fluffy One Shots (COMPLETED) by 0_bimbo_0
0_bimbo_0
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    Parts 21
No lemons, just fluff, the book is now officially completed! I will not be taking ANY MORE REQUESTS! Thank you! Hope you like them!
Northern Downpour (Underfell Sans x Reader) by CarryOnWaywardPie
CarryOnWaywardPie
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    Parts 42
(Y/n) goes to Mt. Ebbot in search of her brother Frisk. But what she finds instead amazes her.
Sans Aus x Reader Oneshots (Requests CLOSED) by lookitsasnake
lookitsasnake
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Cover by @magicath617 REQUESTS ARE CLOSED!!! I WAS TAKING REQUESTS FOR A WHILE, BUT I AM NOT ANYMORE! I WILL NOT DO YOUR REQUEST UNLESS IT'S REALLY COOL AND I REALLY WANT TO DO IT. I will NOT be writing any lemons or smut. Started: 9:24 PM, Saturday April 15th, 2017. Thanks, loves! 😘 Highest Rank: #326 in Fanfiction.
Undertale AU Sans x Reader Oneshots by RadGreenGurl
RadGreenGurl
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If you love sans and fan fiction then this just right for you. I will do as many as I can and yeah. Enjoy!
New Purpose (US!Papyrus x Female!Reader) by OreoDaSkeleton
OreoDaSkeleton
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Y/N, meets a new coworker that changes her life forever. A monster, doing his best to make a living after moving out of the underground. Sans is this ecstatic, cheerful, absolutely innocent skeleton, smiling despite any given situation. However, Y/N finds out that Blue's wearing a different attitude outside of work. He's exhausted and working himself to the bone, using all he earns to pay for countless medical treatments and bills. He claims that they aren't for him, but keeps silent and won't give more details. Who's bills is Sans paying for and could Y/N find a way to help? **WARNING- Small Depressive episodes will be presented in this book. Read at your own consent.** Hello! It's Writer~San! None of the art/undertale au is mine, but the writing 100% is! Enjoy!!!
I Want To Forget (Killer Sans x Reader) by OreoDaSkeleton
OreoDaSkeleton
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Want to talk about falling into the wrong place at the wrong time? Y/N definitely scored big time on that one. One moment she's falling, the next she finds herself trapped underground with a monster that wiped out his own kind. He's a cold-blooded killer that never shows any emotion. Though, as time passes, she finds out that Sans isn't as heartless as he plays himself to be. Hello! Writer~San here! Cover art and Undertale AU/Characters aren't mine, but the story definitely is. I hope you enjoy it!!!!