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  • Gaster x Reader: Trusting The Man Who Speaks In Hands
    39K 1K 12

    Your walking through waterfall when a door you've never seen before, materializes before your eyes. When you open the door you see him...

    Mature
  • gaster x reader
    640 10 11

    this has bad words so there.

    Mature
  • Gaster x Reader
    2K 86 8

    Mt. Ebott, the mountain where the monsters locked under and where people are known to go missing. But who listens to dumb stories like that? Clearly not you. After falling down into a hole that appeared out of no where. You slowly wake up to find maybe the stories held a bit more true to them than you first thought. u...

  • W.D Gaster X Reader
    2.5K 35 7

    this is my first time so hope you all can enjoy

  • Handwriting (Gaster X Reader)
    940 59 6

    Many people believe that you can tell a lot about a person based on their handwriting. Is it cursive? Do they dot their 'i's? Simple questions that can lead to the unravelling of someone's personality. Of course, there were always doubts. 'Everyone's handwriting changes,' they said. Mine never did. My handwritin...

  • Falling {Vampire!Gaster x Reader}
    712 42 6

    Your normal days, spent wallowing in your depression and doing nothing with your life, come to an abrupt end when you meet a mysterious man who isn't exactly human and isn't quite a typical vampire.

  • W.D. Gaster X Reader ! WIP
    2.1K 25 4

    Love W.D. Gaster ? Then u are ready for a lovely adventure to begin my friend ! Please read on !

  • Gaster x reader
    13.6K 250 30

    In this book I plan to do one shots for Gaster the royal scientist, for the underground. Requests are accepted and would really help in the making of this oneshot book. I will not do lemons due to the fact that...... (Throws hands in air and falls to knees) I do not know how to!! anyways hope you like the book. Since...

  • CREEPY SMILES |Gaster x Reader
    10.9K 353 18

    You've always have had a creepy smile, and it doesn't help that you have these scars on your face now.... It doesn't matter though, you're fine with it, and he's happy too... Simple Gaster X Reader fic, I hope everyone enjoys!

  • Prisoner of War (W.D. Gaster X Reader)
    46.6K 1.7K 14

    You are one of the few humans with magic during a war between you and the monsters. (Pre Undertale) Instead of killed you wind up captured by the monsters where you meet a scientist and doctor W.D. Gaster. Cover... I drew it myself this time

  • Find Happiness (Gaster x OC Alice)
    6.5K 129 51

    First Story!!! Sooo sorry if the story is horrible or not making any sense... Edit: I am just correction some misspelling of this book.. I saw so many misspelling it's not even funny D: ______________________________ Why? why? why?!.... After everything i done for them, why i am the only one that have to suffer?! I ha...

    Completed  
  • Outcast: A Gaster Story [Discontinued]
    2.8K 109 19

    NOTE: I'm rewriting this book to incorporate more details and a better plot line amongst other things. I'm keeping this up for anyone who wants to read it, but it isn't finished. Read on if you want. Everyone knows. Everyone has heard about a rumor that during the old war, a human fought alongside monsters. With the...

  • 'Teach me to love again' Gaster x Reader
    5K 192 3

    *This book will take place during the comic by deadpool4ever at Tumblr.* I would suggest the dub by two all nighters on YouTube. :3 I'll put it up there. You are papyrus' teacher at the snowdin school in the underground. and yes you are a human. but why would they keep you alive if you are human. the thing was, yo...

  • Fallen Angel (Gaster x reader) OLD
    148K 6K 49

    OLD AND BADLY WRITTEN THE REWRITE IS POSTED ALREADY DISCLAIMER: The god figure created in this fanfic is purely fictional. He is purposefully made to be prideful and cruel and is not supposed to represent any god. I am religious myself and I did not intend to attack anyones believes with this book. An angel. Sign of...

    Completed  
  • We Studied and We Fought and We Killed [WD Gaster x Reader]DISCONTINUED
    3.3K 113 14

    !!!DISCONTINUED!!!(Before we get into what this story is about, I would like to clarify a few things. this story may contain some Hamilton references. It won't have any smut because I get awkward at those parts. The most that will happen is kissing. If you want me to make a smut chapter, comment. My notes during the s...

  • Human (Gaster X reader)
    6.1K 112 3

    COMPLETE!!! This story is in the past! It plays off the idea that sans and papyrus are Gaster's kids. Being the past it means that his kids aren't born/created yet. Also monster kid, Frisk, Chara, and Asriel aren't born/created

    Completed  
  • Binary Stars [W. D. Gaster X Reader]
    2.3K 69 11

    SHE/HER PRONOUNS VERSION * * * * * * * * * * * * * * * * * bi·na·ry star /ˈbīnərē ˌstär/ a system of two stars in which one star revolves around the other or both revolve around a common center "..You know, I think a perfect metaphor for us would be...

    Mature
  • Light in the Dark (Gaster X Reader)
    9.9K 457 16

    He went blind in a freak accident at the lab. Now all he 'sees' is darkness. Until.. he meets you.

    Completed  
  • Chipper Fellow (W.D. Gaster X Reader)
    9.8K 335 6

    chip·per ˈCHipər/ adjective/informal cheerful and lively _____________________ Not everyone would've described this skeleton man as 'chipper' at first glance. But [Y/N], someone with first-hand experience on how he acts, would definitely describe him as such.

  • Just Leave (Gaster x reader)
    998 45 5

    Sequel to the book Subject 108. Six years after leaving the underground,the dreams of your once beloved return as well as the calling of the mountain. But, the return of monsters and your own bitter secrets prevent you from knowing the whole truth. Will you ever be free from his grasp? (WARNING: GORE, SEXUAL SCENES...

  • Subject 108 (Gaster x Reader)
    37.4K 1.5K 59

    Under editing Every-night you dreamt of a strange man, the strange Dr W.D Gaster who you fell madly in love with. With each passing day you grew closer and closer, but everyone has secrets... Even the seemingly perfect Dr Gaster. (WARNING GORE, SWEARING AND LEMONS) Cover art by @Redwolf878

    Mature
  • Fear Me- Handplates!Gaster x Reader
    50.1K 904 14

    WARNING!!! This story WILL contain rape/noncon and gore, inhumane treatment of the reader, and NO ROMANCE until possibly very late in the book. I plan to update frequently but that may not happen. This is being written as a guilty pleasure type thing to make me feel a little better about some of my messed up fantasie...

    Mature
  • between two souls | gaster x reader
    455 33 7

    still need a proper thumbnail "do you think this will work?" he questioned, concern coating his face as he stared into your eyes. "I don't think, I know." you replied, confidence weeping from your soul.

  • Glowing Souls (Gaster x Reader)
    7.8K 242 8

    You are about 15, Gaster is 17. In this Gaster is an older brother to Sans and Paps. Asriel is about 6 along with Frisk and Chara, who show up later. You and Sans are best friends, but Gaster is amazing! At age 17 he is the royal scientist and you hope you can help him out.

  • Functioning With Society | W.D. Gaster x Reader
    9.1K 430 12

    After adventure comes a happy ending. That's at least what the world tries to teach us. They whisper a "the end" but the tale still strives. Maybe it's not written, or coded, but it continues in your mind. Though, this is reality. It was a surprise that the monsters were able to grasp freedom after so many years of...

    Mature
  • Glitched Love - W. D. Gaster x Reader
    57.5K 1.6K 31

    You, a human, have fallen down into the underground. After having exploring most of it, you have successfully made lots of friends and killed no one. While you want to go back home to your town above ground, all your friends that you had made you decided to stay, or for the moment at least. Very soon, you will end up...

    Completed   Mature
  • Gaster x Reader
    29K 824 5

    You had been getting these weird warning, mainly from Sans. You packed plenty of healing items and your heart locket to see what everybody is so scared of. You soon meet not only your friend, but a fun skeleton who stole your heart (not literally!!!)

    Completed  
  • W. D. Gaster x Reader
    187K 3.2K 42

    A collection of one shots between you and the man who speaks in hands. Some will be long, some will be short, some will be happy, some will be angsty, some will be fluffy, some will be smutty. I will write for certain AU's, but don't be offended if I ask for an explanation of the AU you request, I don't know them all...

    Completed   Mature
  • crazy gaster x reader
    8.4K 167 16

    You are just walking to school when you bump into a guy that seems to like you........a little to much. Read to see what happens next. this has swearing and abuse in it. you have been warned.

    Completed   Mature
  • Coffee Shop - Gaster x Reader
    8.9K 363 8

    Just a little thing from my DeviantArt