Undertale
27 stories
Why Him? | Underfell Sans x Reader by ChLuKa
ChLuKa
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*WRITTEN IN 2016* "Can someone please just tell me.... Why him.....?" Confidence. That emotion has been coming to you a lot ever since you had met him... But Why him...?
The 6th Soul: How to Kill a Man | Sans x Reader by TheShippingFairies
TheShippingFairies
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[ SEQUEL TO THE 6TH SOUL ] "What do we do now? "Simple. We hunt the Hunter." -
The 6th Soul | Sans x Reader  by TheShippingFairies
TheShippingFairies
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"Do you think even the worst person can change, that everyone can be a good person, only if they just try?" -- If you want to read a good book, go on my account and read chat logs. This one is shitty -- Justice. That's the trait of you, (Y/N). The 6th soul fell into the underground. She wasn't alone though, she had a husky, as white as snow to accompany her on her journey. Struggling to find the right path, she makes friends with a whole lot of monsters. This is the story about the 6th soul. [ TRIGGER WARNING ] [ HEAVY LANGUAGE ]
an unexpected love~ (classic sans x AU sanses)  by Jola-chan
Jola-chan
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!!SMUT!!! 13++ WARNING: SWEARING AND CRINGE LOAD!! (Edited im 2022 May 4th: STOP READING THIS HOW DO YALL LIKE READING THIS BS AAAAAAAA) (Edited in 2021): I regret making this book- also just a reminder: THIS FANFIC HAS SO MANY MISTAKES SO PLEASE STOP MAKING FUN OUT OF ME- 😭 and please don't say this is a good book while it has so many cringy crap inside *Made this description on June 24th 2020* I got inspired by many fan fics about this ship so I had to make one too :) there will be some drawings that I didn't make! these amazing pictures all belong to the artists out there! (I might even change the description of this) the AU sanses were having a meeting and discussing about an original AU that they can't find for years until error came late for the meeting and found something very special in his void
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!
Sans and reader oneshots by SuperFanGirl1738
SuperFanGirl1738
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Just some oneshots that I write when I'm bored or if I want to. If you have an idea that you want me to make into a chapter then let me know by commenting or by writing on my home page on wattpad.
𝐎𝐔𝐑 𝐎𝐍𝐄 𝐒𝐀𝐒𝐒𝐘 𝐒𝐄𝐑𝐕𝐀𝐍𝐓 ␈ ˢᵃⁿˢᵉˢ ˣ ʳᵉᵃᵈᵉʳ by luiexette
luiexette
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status; completed. » fanfiction, very old book. tysm for reading <3 ps. hot ppl are those who reread it, ily hon <3 ➽───────────────❥ crackfic - various x reader. totally not the best, but meh. ➽───────────────❥ ➽cringy plot and story @luiexette ➽picture owner @ ➽undertale @toby_fox ➽error sans @lover_of_piggies ➽horrortale @sour_apple_studios ➽killer sans @rahafwabas ➽dusttale @evan_streblow ➽dreamtale @jokublog ➽underverse @jael_penaloza ➽underswap and underfell @au_community ➽inktale @comyet ➽outertale @2mi127 ➽othertale @superyoumna ➽ragnartale @nikolmaria
Kind Of Comical [Sans X Reader] by jaythemost_lovely
jaythemost_lovely
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//Undertale High School AU. Your typical High School story where you're the new girl~ //Except monsters and humans are together too. Involves time travel in later chapters. Never wrote an Reader insert before, so spare me! "You look lost there, Kiddo." A deep smooth voice caught your attention and you turned your head, facing a short Skeleton in a fluffy blue winter jacket. "Oh, U-Uh, Yes." You stammered, looking down at your shoes. "Don't need to be shy." He chuckled lightly. "I'll show you around."
Sans X Reader by Sassybean11
Sassybean11
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Two orphan girls fall down into the Underground. ...Just read the story.
Divided [ Sans X Reader ] by morrow-
morrow-
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Almost four years marking the anniversary of monster kind reaching the surface, the human ambassador Frisk goes missing. Severing the link between the two species, an all out war breaks between humans and monsters. After bloodshed on both sides, monsters emerge victorious. Yet somehow a miraculous town in San Francisco has evaded the warfare and even has an orderly society. And despite everything, Sans keeps encountering a girl who has saved his life one too many times. When your fate and Sans' intertwine, it becomes apparent that the relationship between the two of you extend beyond this timeline. You are plagued with memories of a distant life and Sans begins to hallucinate visions of a not so distant past. Insanity seems to be eating away at the two of you and it's only a matter of time before someone cracks.