Undertale Aus
31 stories
Au Sanses x Mother Reader Oneshots (Requests Closed) by _perplexing_
_perplexing_
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Thanks for the votes and comments, love yous! ♡ The reader is the mother/mother figure to a specific Sans AU. This is not romantic nor is it a kink. Most of these oneshots were requested by readers and is not taking requests anymore as of 2021. Thank you for reading! ^o^ #1 in #smallstories (Sept 23/22) #1 in #shipchildren (Jan 1/23)
He Came to Stay (Blue x Bad Guys) by EmberAshTheFaithful
EmberAshTheFaithful
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Living on a steady diet of caffeine, sugar, and sheer will is not a healthy lifestyle. But how else can you keep up with teammates that need no sleep, no food, and who expect the same of you? Blue has no intention of falling behind, ever, for any reason. But his lifestyle is starting to show to others. What happens when the enemy intervenes for good?
Spirit Animals  by yourfavinconvenience
yourfavinconvenience
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An Au where each person's spirit animal matches with their soul mate's. A Chemical can help determine who's spirit animal is who's. But when an experiment goes wrong, the skeletons are stuck together in a destroyed Au. What gonna happen now?(I honestly don't know yet either lol) If ur cringey and u know it clap ur hands. ClAp ClAp If u suck at writing but u do it anyways clap ur hands. cLaP cLaP If u suffer from fan girl syndrome that has no cure if u ship anyone and everything clap ur hands. cLAP CLAP This is gonna be an incredibly cringey sanscest story. I also am adding myself in, because I'm the author and I cAN SO SHUSH.I just needed to do something with all of my ships. Be prepared for CRINGE OVERLOAD, slow updates, bad plots, bad grammar and other stuff. Enjoy?
Mission: Sanity (Au Sans x Insane! Shapeshifting! Reader) by Golden_Swords
Golden_Swords
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"You're a nobody!" "Go die in Hell!" "It's the insane slut!" "Don't hurt me," After being forced to watch all your siblings burn to death, by your aunt and uncle you have never left your room. One day will you sit in your room and cry, something pulls you from the safety of this world of this. Many skeletons stood over your shoulder watching you. But they no nothing about you and your past. What happens when the Sans' fall for you and maybe you even fall for a couple of them? Do you let them see the true you? Or lock it away so nobody can find it ever again? Find out in 'Mission: Sanity' Warning this book countians cussing, strong violence, suicidal actions, and NO lemons (Eww! I don't do that stuff you filthy sinners). Also a lot of gore. ||Started: 7/29/17|| ||Ended: 4/5/19||
Naj Au X Reader by LorainDuck
LorainDuck
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Your a very pretty,kind and shy person. Your mom and Dad decided to transfer you to new school cause your old one was alot of fakers that only wanted to be your friend cause your family is really rich which they can take advantage of you by giving them money. Your Mom and Dad transfer you to a new school which is both for monsters and humans they thought that you can make some real friends there. Your big brother is happy with that idea but if he found out someone messes with her lil sister again they will immediately regret it. Ofcourse you were nervous for your first day of school and scared being used again just for money but your family told you thats its gonna be ok so you decided to give this school a chance for a new life and maybe make some friends. the school called is Underhigh ( That what it calls right?) and your excited and nervous at the same time especially when you haven't meet a monster yet and made friends with yet ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Hello you can call me Ducky~Chan!. Im Filipino so sorry if my grammar suck also i might not update this book much since i have online classes and i make gacha vids so pls enjoy reading this fanfiction book. i noticed theres not alot of Naj au x reader much so i wanna make one i did have a favorite naj x reader book but the author deleted it for reasons i was very sad but i understand why she did it im not gonna say who author was that or why they deleted it but she did gave me inspiration to make this book 😁 (Also the book cover isn't mine i just got it from gacha since i dont know what book cover ill put in)
Hidden for so Long (Sans AU x Reader) {Remake} by RandomWriter-Chan
RandomWriter-Chan
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Long ago, two races ruled the Earth: HUMANS and MONSTERS. One day, war broke out between the two races. After a long battle, the humans... wait no, the monsters were victorious. They sealed the humans underground with a magic spell. The humans were the ones stuck in the underground but there was a special human, (Y/N) (L/N). Like any other human there, she lived a normal life, making mistakes, having her good and bad moments, and all of that. Her universe was different from the other alternate universes, but it still had its similarities. The Guardian of the AUs, Ink, had never seen her universe until Dream caught noticed of the universe. And with that, Ink, Dream, and fellow other Sanses went to venture on into her universe.... (Remake; V.2)
'Yandere' bad Sanses x reader (Discontinued) by OfficialKzAngel
OfficialKzAngel
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"Memes addict Bad Sanses 2" [Original] This is my second most weirdest bad sanses book Feel free to read this book ❗Cringe warning❗ If you don't like cringe stuff please don't read this book 🙏 Ps. I wrote this when I was still a cringy sans fangir- (Discontinued sorry . _.) -KzAngel
Castle's Pet (Bad Guys X Reader) by EmelinStriker
EmelinStriker
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[Highest Rank: #1 in "sans"] [Second Highest Rank: #18 in "xreader"] (Girls only!) (Earlier updates are on my Quotev account!) WARNING: Profanity and Violence! You were a normal 17 years old girl from the Undertale universe, you fell down Mt. Ebott when you were 15 and you've lived in the Ruins with Toriel. Oddly enough, you haven't heard anything from (F/N) since you fell. And you knew he planned something. The Villains needed a new plan against the Star Sanses and some other heroes. What happens if a mysterious cloaked man tells them about about you?
Bad sanses x female reader (Completed)  by OfficialKzAngel
OfficialKzAngel
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"Memes addict Bad Sanses 1" [Original] XD This is my first book so don't judge me This book is basically bad sanses x reader with a hell lot bunch of memes. This book is all about entertainments, not anything else. ❕Cringe warning❕ Ps. This book is stupid and weird -KzAngel