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  • Junkyard Dog and Serious Bones (Gaster!Sans X Female Reader)
    19.7K 828 15

    ((Any OC addition requests are welcome.)) (Y/n)...Known as the Junkyard Dog for her hostile attitude and living situation. Gaster!Sans...Known as Serious Bones for being a serious skeleton...That occasionally says a couple puns. WARNING: Mature Language and some almost lemon-y stuff MAY be included in story COVER ART...

  • Her Fate [FlowerFell FanFiction] BOOK 1 [REDO DONE]
    25.9K 1K 30

    Ever since Frisk landed in the world of UnderFell, every single monster wanted her soul. That's until the one day she died. After the reset, she appeared with a flower on her arm. And that's when, Sans noticed something strange going on with her. Insanity slowly crept up her back, making her think that she would die...

    Completed  
  • Rescue (UnderFell!Sans X Reader Fanfiction)
    76.3K 3.2K 32

    It was supposed to be a search and rescue with your two closest friends. With your 'brother' Frisk missing now two days and that foster home giving less than a damn, it was up to you and your best friends to follow his one clue. But what happens when one little clue leads to a situation larger than life? Will you surv...

  • Your Life?! (UF!Sans X Reader)
    51.6K 1.5K 8

    WARNING: Lots of swearing, blood, cruelty and slight sexual themes!!!! Sans and Y/n are arch enemies. They can't go a second without insulting the other. But one day an...accident happens, forcing them to co operate until they find a sulotion to their "situation". But before that, they learn a lot about each other and...

  • -Old Friends- Ink Sans X Reader X Error Sans
    116K 2.7K 17

    You've fell into a dark hole and met Flowey, you and Flowey acted like enemies and you wanted to be friends. You met Toriel and had to leave, but you hated your life in the surface. You ended up in the snowed woods and heard kids playing, but you were cold as HELL. You rubbed your hand for warmth but it created a (F/C...

    Completed  
  • Determination {Sans x reader} Underfell
    16.7K 534 11

    You are taking a family trip to the mountains and you're probably the biggest Undertale fan there ever was. Mt. Ebott was well known for its theories of monsters actually being down there. Since you know pretty much everything about Undertale you decide to go and explore Mt. Ebott by yourself. But something happens an...

  • [ON HOLD] Correction: A Human!Sans X Reader Fanfiction
    39.5K 1.3K 23

    Reality is a cruel world to live in when you have to live with your choices, but what if you could change what you've done? What if you could start over? Would it be worth the pain of losing your loved ones' memories? This is a fanfiction that i hope you will enjoy because I'm certainly enjoying writing this. Thank yo...

  • Sleepless Beauty (Sans x reader)
    35.2K 1.5K 8

    "No time for goodbyes, he said...as he faded away, Don't put your life in someone's hands there bound to steal it away, Don't hid your mistakes cause they'll find you, Burn you then he said 'if you wanna get out alive, whoa oh run for your life", (Y/n) sang silently to herself. She stared at her ceiling listening to...

  • A Problem? {Ink!Sans X Reader X Error!Sans}
    266K 9K 55

    "W- Who are you?" "YOU DON'T HAVE TO DO THIS!!" "Just be safe." "Here, let me help you." "I don't want to hurt you!" "Calm down." "Please Stop." "Listen, it's okay." "Don't worry." "Be careful!" "Everything's alright." "I won't ever let you get hurt." "I Promise." "I Promise." ~~~~~~~~~~~~~...

  • Error!Sans AU X Reader
    16.6K 414 3

    I'm thinking LEMONZ but, I dunno yet. Enjoy this new book and I hope you all love it!

  • [Gaster! Sans X Reader] Soul Of Freedom
    52.2K 1.8K 15

    You heard about it. When the barrier was shattered. When monsters were finally free. That was until another war broke down, causing them all to get trapped in the underground again. Rumors spread that the humans killed a child named Frisk for setting them free. "Every monster that we find out in the surface, will be s...

    Mature
  • AU: Yanderetale: Pacifist (Yandere Undertale X Reader)
    292K 6K 22

    My name is (y/n) (l/n) and I have no idea how I came here to the underground. No, really, I just woke up in a patch of flowers... Anyways, I've heard legends about monsters that live underground... They exist. But something about them is just... Odd... I've heard from monsters that the king is obsessed with us human...

  • Mindless (Sans x Reader)
    89K 3.2K 22

    What if you had no choice? You are being controlled by a Demon to kill your friends and the one you love over and over again. Each time you gain control over the demon it's usually too late. When you finally get close enough to stop the demon how do you manage? A SansxReader undertale fanfic written from your point o...

    Completed  
  • [Discontinued] Ink!Sans X Reader: Painting My Broken Heart
    95.5K 2.3K 32

    Sooooo..... theres not much Ink Sans X Readers.. So i made THIS BOOK! Inky is a ggggreat! Character and super cute >o<, So... why not make one :D Undertale does not belong to me Anyways leets start!!! ~Ashwey

    Completed  
  • The Nightmares{Sans x Reader}
    22.2K 691 7

    {Just read... Wattpad deleted my description which took me forever to type ;-; }

  • Undertale {Sans X Reader}
    132K 4.4K 22

    {Please remember, this is my first Undertale fanfiction. I was still new to the game and fandom itself, so I didn't have all the lines from the characters memorized by heart just yet. I'm not going back to change anything, because I don't think it'll be the same if I change it. Thanks for understanding and please enjo...

    Completed  
  • ~War~ A G!Sans X Reader
    34.9K 1.3K 20

    This story is under massive editing once again ⚠⚠ Hopefully ill get it back up and running so that its actually enjoyable!

    Mature
  • Tangled (Error Sans x reader) {Completed}
    206K 4.4K 23

    Error 404 Page not found

    Completed  
  • All Tied Up (Error Sans x Reader)
    170K 4.3K 23

    > Your just a regular human that fell down the hole that supposed lead to the underground, you come across many obstacles and find yourself in much of a sticky situation, more or less your tied up. •IMPORTANT• Hello wattpad users, this is actually the first story I'm actually making. So I'm sorry if it's suckish or te...

  • Half Empty, Half Full
    20K 760 8

    Cover Art By; KelCasual A (Sans x Reader) Fan-Fiction in which love, heartbreak, compassion, and determination all flourish; becoming the roots of an unbreakable bond.

  • "You Can't Escape Now , Doll" (Gaster!Sans X Reader-chan)
    81.1K 1.8K 20

    Your a 18 year old girl named (Y/N), you've been living in the underground for 1 week and you've been staying with Tories. You had run away from a family who never really loved you except your brother. So you tried to do what most people would have done and tried to commit suicide. That plan had failed and that's when...

  • 《Genocide 》Sans X Reader
    68.6K 2.8K 17

    Edit: This is my first fanfic and I find it terrible, but if you wanna read it go ahead. Not everything will make sense. What happens when you fall in love with the skeleton who wants to kill your sister for killing their brother? It has to be him or her. Who will you choose?

    Completed  
  • Error!Sans X Reader
    44.1K 1K 8

    My own cover! :D An ordinary girl that just loves art and music. Well, maybe not ordinary. But then officially is in a, MULTIVERSE?!? Maybe some skeletons aren't that bad...

    Completed