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  • Stay With Me...(Gaster! Sans x Abused Reader)
    13.3K 471 11

    You're a 17 year old female named (Y/N). Your mother had sadly passed away when you were just 14. That's when you're father had started abusing you. You've been bullied at school and never had any friends except for one person. His name was Jason, he always stood up for you, he was your one and only friend until mo...

  • Gaster!Sans x Bullied!Reader
    12.5K 453 42

    (Y/N) is your typical freshman girl. You know the usual clutzy, shy, over achiever with a badass double life. In the day time, she's bullied by her fellow classmates for being a neko-human hybrid despite looking almost 100% human. At night, she's feared by monsters and humans alike. Stabbing anyone who tries to get to...

  • Eyes of Fire (Gaster!Sans x Reader)
    271K 11K 63

    (FAN FICTION BASED OFF OF VIDEO GAME 'UNDERTALE') His eyes were like fire. Amber. Dangerous. But they intrigued me. The flames of his soul danced and encased my heart. It was needless to say that I didn't mind. (COMPLETED)

    Completed  
  • Hidden Inside (Gaster!Sans X Reader)
    85.9K 3.4K 31

    After the monsters are set free, they aren't too keen on befriending humanity. They won't show themselves yet. They will get revenge on the war the humans had waged years ago. Now they attack in secret, getting patrols and assassins prepared at nightfall. One of the pairs of assassins is Gaster!Sans and his brother. W...

  • Hurts Like Hell (G!SansxReader)
    191K 7.1K 40

    This is a Slowburn so hate me all you want, I dont care. If you dont like it then dont read it. Basics: y/n-your name l/n-last name e/c-eye color f/c-favorite color h/c-hair color s/c-skin color Setting: Monsters were released from the underground and onto the surface. The Humans were use to living with them but not u...

    Mature
  • Try me, Bones. (Gaster!Sans X Reader) Wattys2016
    110K 3.7K 36

    The only way to the top in this world, this world born of war, born of death, the only way of ascension? ...is to become someone you don't want to be. And so I've got to break a promise. Because I've got a job to do. And there's no-one who's going to keep me from it. ~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~...

    Completed  
  • Sorry About That (Gaster!Sans x Reader)
    87.2K 4.3K 27

    You worked for the newspaper, doing a simple editing job and a few other things here and there. Ever since monsters came out of the ground, though, rent has sky-rocketed for you. You thought you could deal with it, but after a few months you need a roomie to help with the rent. Which, fortunately, you got one! But, un...

  • Princess of the Underground (Gaster!Sans x Female Reader)
    146K 5.9K 55

    [Y/N] lived with her adoptive mother Toriel for a while. How long is that? About three years. Throughout the time, the monsters in the Ruins know her as if they were her siblings. Flowey became way nicer each day around her, losing his soulless behavior. He cares about her so much he promise to protect her. All was...

    Mature
  • Without You. [[:]] Gaster!Sans X Reader [[:]] (#Wattys2016)
    37.1K 1.6K 35

    Hello. I'm [Y/N] [L/N]. I grew up with my father. My mother has died when I was about 5. My father always blamed me for her death. And in each second, I'm starting to blame myself, too. My mother died in a car accident. She was just driving me to a my favorite restaurant; [F/R]. It was dark, and my mother couldn't see...

    Mature
  • Help Me Understand [Gaster Sans x reader]
    3.8K 143 12

    that wretched place had burned down, you and your son are the only survivors, maybe you can even start over, though, you know you can never escape your past, it will always haunt you, always scare you, always taunt you as it takes your loved ones away. But this time, you'll fight.

  • Hey, Doll | Gaster!Sans x Reader
    260K 13.2K 47

    Alone in a condemned world where monsters and humans fight for power constantly, Y/N survives off of the wood's riches and the small scraps of shelter she can find in ghost towns. Allies and friends have come and gone during the war, either killed or have parted ways. It's not all that bad. She could be dead, after al...

    Completed   Mature
  • Snowglobes ∆Gaster!Sans x Reader∆
    70.5K 2.9K 62

    Highest Rank: #290 in Fanfiction ××× "Its a mad, mad, world out there, girlie. And your kind just makes it madder." Everyone has a lock. Some people are lucky enough to find someone who holds the key. Opal's lock has been rusted and unused for years. But when a bipolar skeleton wipes away the dust and doesn't mind...

  • What Lies Inside (Gaster!Sans x Reader )
    98.7K 3.9K 46

    "You know sweetheart, lying doesn't get you anywhere with me." He said lighting a cigarette and placing it in between his teeth. Vanilla, leather, and smoke is quite the intoxicating smell. "I'm not lying, also who gives you the right to judge if I'm lying or not?" Something flickers inside me, a warm burning feeling...

    Completed   Mature
  • An Assassin's Love (Gaster!SansXReader)
    5K 247 15

    (NO LEMONS will be in this so sorry) It's been eight years since the monsters were released from the underground and instead of the humans accepting the monsters they attacked. Now the humans are yet again in another war against the monsters. I (Y/N) (L/N) am in the group called the Peacekeepers. The Peacekeepers is a...