Gastersansxreader Stories

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40 Stories

  • TRAPPED - Gaster!Sans x Reader by UndertaleReads
    UndertaleReads
    • WpView
      Reads 18,291
    • WpPart
      Parts 10
    (Cover Art is not mine.) You don't remember who you are, or who you used to be. You've woken up in an abandoned costume shop with amnesia, after the second human and monster war. The monsters were victorious this time, and practically all that's left of humanity is trapped in the Underground. You find a journal explaining how to survive trying to live among monsters, and you become aware that you are one of the less than ten humans still on the surface. Deciding to live among the monsters instead of risk it in hiding, you enter a monster-filled city, and meet a certain skeleton. Undertale: ©2015 Toby Fox. All Rights Reserved. TRAPPED - Gaster!Sans x Reader: ©2016 UndertaleReads. All Rights Reserved.
  • Blown Through The Rift (Gaster!Sans X Reader)  by BanthaBug
    BanthaBug
    • WpView
      Reads 248,404
    • WpPart
      Parts 35
    You were working with Alphys in the lab in Undertale when chaos strikes! In a freak accident, concentrated determination is mixed with an unnamed concoction and blow you through a dimensional rift. When you reawake, you find yourself in what seems to be the beginning of Undertale once again. Upset but not overly surprised, you make your way back to Alphys's lab... Only to find her lab assistant is no longer you! Working with Alphys now is a tall, punkish skeleton with two cracks in his skull and a snarky attitude. As they help you find your way home, will you find more than that? *I DO NOT OWN UNDERTALE OR GASTERTALE!!! I WISH I DID BUT I DO NOT! THIS IS JUST A FANFICTION!!*
  • Sweetheart (Gaster!Sans x Abused!Reader) by MyDouxAmour
    MyDouxAmour
    • WpView
      Reads 5,633
    • WpPart
      Parts 18
    You could only stand there and bare the pain of loss. You knew losing loved ones hurt, but when you lost them twice, it really stings. So when all that's left to love is your cat, and the only one you need to escape is your abusive adoptive father, you decide to make a plan to run away. In hopes to start a new life. In hopes he won't follow you. In hopes you could be free. --- Key: (Y/N)- Your Name (L/N)- Last Name (F/C)- Favorite color (S/F/C)- Second Favorite Color (F/F)- Favorite Food (F/D) or (F/B) Favorite drink or Favorite Beverage
  • The Perfect Time ((Gaster!Sans X Abused!Reader)) by Fall3n_R3mix
    Fall3n_R3mix
    • WpView
      Reads 33,755
    • WpPart
      Parts 16
    5 years. 5 years it's been. 5 years since Frisk freed the monsters. 5 years since your mom left you. 5 years you've put up with your father. 5 years of suffering and anguish 5 years of torture and abuse, mentally and physically. But that was gonna be stopped. ~~~~~~~~~~~~~ Meet (Y/N), a abused runaway with an attitude that's bound to make some people pissed. Well, that's kind of an understatement. After her mom leaving and being beat by her dad, she decides to run away, and finds a completely different world. One that makes her struggle to survive. How could she possibly make it? ~~~~~~~~~~~~ Meet sans, the laid back, lazy, and funny skeleton monster from the underground. At least, that's what he used to be. Now, he's known as Gaster Sans. He's still funny, but in a different way. All the laziness is gone. He's charming, clever, and quick. Ever since he combined souls with Gaster, his personality and appearance completely change. Will he ever feel the same, normal, again?
  • Me Or Her by Yusuka-chan
    Yusuka-chan
    • WpView
      Reads 965
    • WpPart
      Parts 3
    How long has it been ......how long am I gonna keep doing this......its to late already right? He already knows. Please just read the story to find out Its just a little interesting twist I thought of just to switch things up I mean has any reader x stories ever had a rival? And if it does there's not enough.
  • notice me by irenethefears
    irenethefears
    • WpView
      Reads 143
    • WpPart
      Parts 5
    Hi I'm y/n and 19 and I'm very shy and I have a crush on someone his name is gaster sans or g for short and I've been in the same grade and same class with him for years. Well so I don't tell you my whole story lets get on with the story.
  • Some Kinda Love {Gaster!Sans x Reader} by ChillNoodle
    ChillNoodle
    • WpView
      Reads 827
    • WpPart
      Parts 10
    You werent one of those people who were seen as...unique. You were seen as someone who never stood out in a crowd and was never seen as special. At least thats what everyone told you. The sad thing was... You belived them. This lead you to be emotionless, heartless and soulless. But one day you met someone. You met the best person you could ever ask for. You met.... Him.
  • Sweatheart, I'm a Mobster. {Mafia!Gaster!Sans x Reader} ||SLOW UPDATES|| by Way-Too-Weird
    Way-Too-Weird
    • WpView
      Reads 16,308
    • WpPart
      Parts 5
    -------------------------- The 3-year-old frisk cried, as you held them close, rubbing their back. "Kitten, who's this?" The skeleton asked. I growled. "Kitten? That's my sibling, Frisk!" ------------------------- I have seen none of this hot mobster mess of a skeleton. Why not make a hot mafia mess of a fanfic?
  • Gaster!Sans X Reader by curlygirlny
    curlygirlny
    • WpView
      Reads 5,745
    • WpPart
      Parts 8
    Finals are coming up and you're determined to ace them, and that means that you enlist the help of your best friends, Sans. Well, his full name is Gaster!Sans, but you just call him G, it's easier. Anyway, it would all be fine... if you didn't have a gigantic crush on him... and if he wasn't a, well, let's just say he 'gets comfortable' with a lot of different girls. Yeah, things get a little messy. A lot of sexual innuendos Sorry... Just, yeah, sorry
  • Rebel Wolf (G!Sans x OC) by Amythest_Light
    Amythest_Light
    • WpView
      Reads 217
    • WpPart
      Parts 5
    War. War can destroy everything, destroy relationships and tear friends and family apart. People die and kill others. War is a dark time. But even with as much as it destroys, there will always be light, hope. War can also bring people back together, unite for a cause...The monsters were released 3 years ago. Two and a half years is how long the war has been waging. I am on my own, like always when I find an old friend...and my soulmate tries to kill me multiple times. Click once more, dear reader, to learn my story.
  • Gaster Sans x abused reader by McKALE0219A
    McKALE0219A
    • WpView
      Reads 2,665
    • WpPart
      Parts 5
    You wanted to escape your life... you wanted to die but then a monster change everything...
  • The Devils Raven by MCstar13
    MCstar13
    • WpView
      Reads 1,241
    • WpPart
      Parts 11
    Raven Aris, the girl no one knows, the girl everyone hates, the girl who hates humans for they killed her friends, the girl that hates monsters for they killed her brother, the girl whos a lone wolf, the girl that helps those who cant help themselves, the girl who just wants to be left alone, the girl who gave up on hope, the girl that doesnt even know that the devil is watching. Gaster Sans, known as G, known as the devil himself, known for his hatred of humans, known for killing humans without mercy, known for his power and strength, known for his protective nature. Followed a raven one day, and found someone just like him, and before he even saw their face, he fell in love. He just didnt know it.
  • Inner Demons (A Gaster Sans X Reader) by SpazzyJazzy193
    SpazzyJazzy193
    • WpView
      Reads 5,709
    • WpPart
      Parts 13
    (Y/N) is a young girl with a questionable past. What happens when she meets a smexy skeleton that knows how to fix her?
  • Not Much Of Romeo 'N' Juliet .: Gaster/G! Sans x Reader:. by absent_archive
    absent_archive
    • WpView
      Reads 544
    • WpPart
      Parts 2
    They could suck your non-existent dick because you wouldn't care if they would kill you are not. It was a fun life anyway. You are the heiress to the 'Monster Eliminator' team. It wasn't a smart name, but they were a smart group. You've already killed dozens of monsters, and it was a ton of fun for you and your ray of sunshine. Keeping all of the dust for safe keeping and profit-you were real boaster when men liked to show out their guns. That's when you are kidnapped and your damn parents didn't give two shit about your disappearance. The whole monster society knew who you were and they hated and feared your guts. The only thing was they didn't know your name. The lead of the clan, you were buck into, was a so called Skeleton fusion. The two of you made a deal into converting the dust back to solid monsters. But, you seemed to fall for and regret falling for the skeleton.
  • the smokey smell left in my head (Gaster sans X reader) by valentinez_day
    valentinez_day
    • WpView
      Reads 12
    • WpPart
      Parts 2
    i was reading a fic a while ago and liked the premise, but the writing wasn't super well done so im writing my own.
  • {Broken Already} Gaster Sans x Reader by _Kochii_
    _Kochii_
    • WpView
      Reads 123,338
    • WpPart
      Parts 25
    "That's how I ended up here." "Seems bad." "Oh no, it was hell."
  • Reset (Gaster!Sans x Reader) by SubjectDiscord
    SubjectDiscord
    • WpView
      Reads 88
    • WpPart
      Parts 2
    It's been a years since the barrier to the underground and the human realm was shattered by the human Frisk. But as time went on Frisk went missing. Humans did not take to monsters as kind as Frisk did. Work for monsters is scares, meaning it's hard for any of them to make a living or raise a family. Thanks to this most monsters resulted in a life of crime. That is where I come in, hi my name is (Y/N) and I am a hacker for a monster gang. Sorry guys but it is going to be a slow burn None of the art belongs to me. Credit to to all the creators of the fan art Undertale belongs to TobyFox
  • "I Love You..." {GastersansXBullied Fem Reader} by -TheTrashcan-
    -TheTrashcan-
    • WpView
      Reads 393
    • WpPart
      Parts 3
    Your life hasn't been the best, Your parents don't really like you, and you're being bullied Way too much at school. Yeah, your life is hell. Until you meet Sans. I don't own undertale or Au's, Including Gsans.