Undertale
48 stories
You're Ours! (Sans AUs X Reader) by HayumiJuno
HayumiJuno
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Sans X reader! Of course every sans is there but you need to wait for them! Enjoy!
Gaster sans x reader! by WolfGirl_229
WolfGirl_229
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Your life was perfect, perfect family, perfect friends, perfect house. You had two brothers, your mom and dad, and at least 4 friends in the neighbour hood. What more could you ask for?..... Pain..... You loved everything you had, and you where so grateful for it, but something was missing. You had this empty feeling, you wanted... No, NEEDED, to have something more. And so, you left.
Pure Soul (Gaster!Sans x Reader) by ToastieSocks69
ToastieSocks69
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You have a small secret that no one knows about. You are the only pure soul human that anyone has ever met. You keep the soul a secret from everyone. That is, until a certain skeleton decides to come... ... And one thing is for certain... He wants your soul. But he also wants you.
You Are My Sunshine (Yandere dusttale Sans X Reader) by umi-dreemurr-umi
umi-dreemurr-umi
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basically this is about dusttale for a ten year old girl who is scared of nearly everything but she changes the heart of a cold hearted person. or should I say skeleton? [ Edit: okay this was made about four to five years ago, make fun of this like crazy but dont go too far, lol ] [edit2: make fun of this and absolutely destroy it please.]
Play Date  by ActuallyAlastor
ActuallyAlastor
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Stalker sans x reader First story on here, I made this about four or three years ago. Work in progress!
Full of Fanart!  by ItsSwapPapyrus
ItsSwapPapyrus
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Just fanart that I absolutely LOVE (I lie, I love all the fanart I receive!)
Love While You Dance (Dancetale! Sans x Reader) discontinue by SentillyTheWriter
SentillyTheWriter
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Y/N, a 17 year old female has a true yet secret talent for dancing. She dared not to dance in front of anyone who may be around. Every time she would wanna dance, she'd always find somewhere private to do it. Yet one day, the monsters have been released by a young child and professional ballet dancer named Frisk. Y/N hardly did dancing often. But when she climbed up Mt. Ebott, that's where she does her practice. Yet, little did she know, was she has been watched throughout the whole time the monsters were set free. What happens next....?
My little soul mate~ by Bluejay_heart
Bluejay_heart
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Yandere Sans X Reader What happens when you meet a skeleton at a store..... What if you have to protect him from a rude and racist cashier? What if...what if she didn't know he was staring the whole time....
wrong number | sans . by ItsSwapPapyrus
ItsSwapPapyrus
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While working on the machine, Sans receives a text message from an unsaved number. It first starts out on one slow night that quickly evolves into eagerly waiting for a message from this unknown person. Sans is cautious but he can't help but feel drawn to this one person - despite that he never had met them before.
A Sweet Theory by ItsSwapPapyrus
ItsSwapPapyrus
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A world where the Undertale characters are human, no magic, no monsters - just humanity among humanity. This is about a scientist who pushed the limit too far. Alphys knew the risks of playing with the multiverse theory - it fascinated her to the point of isolation, wanting to prove that they weren't the only ones in the whole world - it seemed impossible. Making the machine took years, several years, to complete. Despite the warnings of her lover and friends, she continued on. It wasn't until she over heard Asgore say to Gaster that they had to take her in. She knew that was going to happen, so she left. On the run, She knows she'll be caught. Either by her lover or her friends - so she uses a device to escape. Leaving nothing but empty notes with empty apologies. several people shouting above with crashes and energy, Alphys decided to start anew, knowing that if her friends and former lover wanted to follow her; they'll have to make a whole new machine and the correct coordinates. Slightly dizzy, Alphys reaches the stairway. - no, no.. she isn't Alphys anymore.. She's (Y/n) (L/n). And she knew that there was no turning back now.