Underfellsansxreader Stories

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26 Stories

  • Furtastic by Juniperlives43
    Juniperlives43
    • WpView
      Reads 51,215
    • WpPart
      Parts 25
    A girl who has never seen the world outside of the lab sees it for the first time only to fall down into the underground. What will she find down there?
  • Monsters Mercy (Underfell Sans x Reader) by KING_andro_KING
    KING_andro_KING
    • WpView
      Reads 262
    • WpPart
      Parts 5
    UNDERTALE?? IN MY 2020?? -Gender neutral so it's for everyone!- -Underfell- -most art comes from deactivated artists so I will try and credit as accurately as possible!! Many years have passed since monsters were banished underground for bringing upon a war against the humans, once they were lost to their own rage, Mount Ebott turned into a tall tale. A story about the mountain being cursed and having hidden ways of trapping people underground. They say if monsters did exist, they had no mercy in their souls. That humans were the 'good guys'. A human that fell into their world, found the tales were true about monsters existing but hopes they couldn't be as ruthless as they have been told. They wanted to believe that even these so called horrible monsters can be good if they just tried.
  • Work Buddies (Underfell!SansxSuicidal!reader part 2) by bunbondoeswriting
    bunbondoeswriting
    • WpView
      Reads 287
    • WpPart
      Parts 4
    oh noes its part 2 jskhfdofdefjdshodsnvkhdsuofdsofhudos SO MUCH SIN
  • I'm not alone... (Underfell Sans X Reader) by saaaaaaaaaans
    saaaaaaaaaans
    • WpView
      Reads 21,423
    • WpPart
      Parts 6
    You fall down into the Underground, thinking your life was helpless. Now....you realize your life is helpless without him....
  • Underfell, A Sans x Reader Fanfiction (Discontinued) by Makayla2290
    Makayla2290
    • WpView
      Reads 1,212
    • WpPart
      Parts 11
    Hey guys! This story is currently being rewritten, so go check out "I Fell for You (An Underfell Sans x Reader Fanfiction)
  • AU Sans  X Reader Long OneShots by mylittlepinkamena222
    mylittlepinkamena222
    • WpView
      Reads 191,343
    • WpPart
      Parts 24
    Just Sans X Reader No Lemon Cover by my homeslice tkdgirl222 I don't own any of the characters in these story Don't kinkshame me I know your here for the same reason I wrote these >:) Also these are for girls but you can change the pronouns and the girly stuff to guy stuff I don't care. @tkdgirl222 edits and helps write all of the stories.
  • ~A Purr-Fect Love~ (Underfell!Sans x Neko!Reader) by Eyeless_Kitty1985
    Eyeless_Kitty1985
    • WpView
      Reads 56
    • WpPart
      Parts 1
    This is one of the first undertake stories that I'm actually gonna work on a lot so please don't judge this.
  • I Love U, I Hate U (Underfell Sans X Reader) by catfishhamsterlady
    catfishhamsterlady
    • WpView
      Reads 18,620
    • WpPart
      Parts 7
    *Coming Soon!*
  • Fell Sans X Reader {lemon} by Und3r_F3ll
    Und3r_F3ll
    • WpView
      Reads 330
    • WpPart
      Parts 1
    A bright light? Was I dead? So it finally happened....this is what death feels like.... Why is it so cold? Trees.....Trees.........
  • Lost {Underfell!Sans X Abused!Reader} by xSinfulDreams_x
    xSinfulDreams_x
    • WpView
      Reads 27,066
    • WpPart
      Parts 6
    You were being abused. You couldn't take it anymore. But you also couldn't leave your kitten, Millie. So you gently put her in your backpack and got going. Your father wasn't looking. He was drunk, anyways. He probably didn't even notice the window in your room being opened. You made sure to lock your door before you left, then you decided to go for it. Millie was being quiet. She most likely understood what was happening. You were running away.
  • Fell For You (UF! Sans x reader) by Baptorization
    Baptorization
    • WpView
      Reads 1,152
    • WpPart
      Parts 5
    (Y/n) had a wonderful life. She always had the nicest clothes in school and she loved her family. Her mother and father loved her dearly, and so did her older brother. One day they went on a family camping trip atop Mt. Ebott. They were having a great time, until they were attacked by a bear. (Y/n) and the rest of her family fled, all in different directions. As (Y/n) was running, she tripped over a vine, and into the underground. Everything was going terrible for her, as she found it wasn't as kind as her parents had told her they were. Until she met Sans. ____ Sans, on the other hand hated his life. The only 'new clothes' he got was a new collar, and the only family he had seemed to hate him. His brother was cruel and brash, acting as if he gave no fucks about Sans nor his feelings. The only trips he ever went on, was everyone tripping him. He was often an easy target for bullying. Mostly just light teasing, and every so often physical bullying. Papyrus never knew. Sans never told him, since he figured Papyrus didn't care since sometimes, he was the one bullying him. But everything changed for him the day the human fell down. He found his savior that day.
  • Underfell Sans X Reader by Unkn0wn_Anonymous
    Unkn0wn_Anonymous
    • WpView
      Reads 1,386
    • WpPart
      Parts 3
    This is just an extremely Sadistic Fell x Masochistic reader. Heart and Comment if you want to give me any opinions on my story thus far, or suggestions for the next page. Pages will be updated daily and I will notify you if there is to be a change and I am to update less frequently. For now, I won't let these be one of those (LAST UPDATED: THREE YEARS AGO) stories.
  • UF Sans x abused cat reader by LuciyWaveren1987
    LuciyWaveren1987
    • WpView
      Reads 6,234
    • WpPart
      Parts 11
    sorry if this book is bad it's my first one
  • I Fell for you (An Underfell Sans x Reader Fanfiction) by Makayla2290
    Makayla2290
    • WpView
      Reads 81
    • WpPart
      Parts 1
    Once, there was a battle between two races. Humans and Monsters. The Humans thought Monsters were Vicious, Threatening and Merciless. Though the Monsters thought the same way. The Humans always treated the Monsters as if they were beneath them. So the monsters stood up to them. Eventually, The humans became tired of the monsters fighting back. That was when the war started. Both sides fought Viciously. In the end... The Humans won. Casting a Magic Barrier, they sealed them Underground, In the mountian of Mount. Ebbot... never to be seen again. Though, that was a very long time ago. Now to be considered a myth. A fairytale to frighten kids into not wandering into the forest or near the mountian... Correct? A young woman, about the age of 17, has been orphaned since she was young. Now abused by her Caretakers in her Foster home. With no will to live... She grows curious about the legends and rumors. About the Children "Dissapearing" and going "Missing", near the mountian. She sneeks from her "home", finding a large, Never ending Abyss. Falling down, hoping to end her life... Only to be given another chance at it. So here goes the start of Y/N's new life, free of the abuse and depression of her past home. ... ... ... Or so she thought...
  • The Fallen Lovers (Underfell Sans x Female Fallen Angel Reader)  by LashedScarlet42
    LashedScarlet42
    • WpView
      Reads 9,111
    • WpPart
      Parts 13
    I own none of the art shown unless I say so in the chapters. All game credit goes to Toby Fox.
  • How can you steal a non-existent heart? (underfell sans x Neko!reader) by Folfy4evsbro_-w-
    Folfy4evsbro_-w-
    • WpView
      Reads 44
    • WpPart
      Parts 1
    (y/n) is an abused neko that never know her real parents. She has been used as any kind of toy that you can think of and feels paralyzed. She went to Mt.Ebott hoping to die from the fall to stop it all but, instead she finds a resin to live.
  • Hidden away UnderFell Sans x Reader by CancerConnoisseur
    CancerConnoisseur
    • WpView
      Reads 101
    • WpPart
      Parts 3
    Its been a while since you fell. You are currently being hidden in waterfall; behind a mysterious grey door that only Sans seems to know about or even see. You feel lonely. Only he visits and it's not always pleasent. The picture is not mine I got it off of DeviantArt. By RandomColourNote.
  • Do you Trust me? (Underfell sans x Reader story) by -Kyoko-Cream-
    -Kyoko-Cream-
    • WpView
      Reads 37,677
    • WpPart
      Parts 19
    Making friends with others may sound easy as you think! But the thing that starts betrayal is breaking their trust Hah! Got your interest? It better! Feelings are coming up your way....
  • Demons Love   [Underfell Sans x Demon-Reader] by Unicorn_queen808
    Unicorn_queen808
    • WpView
      Reads 34,053
    • WpPart
      Parts 24
    Y/N is a half Demon Half Human, who lives with her friend Amy. They moved to a little town recently where Amy has loads of friends, which is the reason both of u moved there. Now... Only Amy knows ur little secret about u being half demon. Also ur the type of gurl who is kinds shy sometimes, has MAJOR ANGER ISSUES if u get really pissed off, and ur extremely....hyper. ANYWAYS.... u meet Sans and somehow get off at a really bad start, then u too start to get used to each other then, blah! Just a little hint, this is my first x reader thang, so wish me luck! YASS IM SO AMAZING!!!!! Srry got lazy to write down details in here! But I will explain later in le story!!! Also, if u are nothing like the gurl I just described, then u should still read it cause can!!! I CONTROL UR LIFE IN THIS STORY!!! MUAHAHAHA......Alright buh bye! Edit 2019: This story is so cringey, I wasnt able to read my story without crying and dying of cringe XD, thx to all the people who read it over these past two years lol, hope you enjoy! One more thing, I highly suggest you dont read this story unless you're willing to die of cringe. Like seriously, this story is just. . . . terrible (in my opinion) Have fun