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  • Black Roses (Overprotective!Bad Guy Sans' x Child!Reader)
    466K 13.7K 41

    Nightmare found a young child a long time ago. When they fell into a coma it sent him over the edge. several hundred years later the child wakes up in a castle of darkness, surrounded by people, er... skeletons, that they don't know. Now they are being raised by murderers, cannibals, and world destroyers. Oh yeah! And...

    Completed  
  • We Speak In Hands (Gaster x Female!Reader)
    41.2K 2.2K 33

    Gaster is the current royal scientist, set with a mission to break the barrier and free monster-kind from their underground prison. His loyalty and persistence to the task is clear, since he'll make whatever sacrifice necessary to complete it. However, even a perfectionist can be blind to some of their own flaws. Gast...

    Completed  
  • PROTECTIVE [Dreamtale Nightmare x reader]
    51.7K 1.8K 20

    [Y/N] a human who never truly understood why people hated negativity, and enjoyed any form of positivity. Even if it harmed them. They believed negativity was positivity in disguise. Everything good comes from something bad, so why hate negativity? DISCONTINUED 🍎🖤 Swear warning for those who dont like it. And sens...

  • Undertale AU Sibling Oneshots
    304K 7.8K 158

    Yup! They're back! A thing I started back in my older account UndertaleKyannaKitty. They're your siblings now! Cute, edgy, as much angst as you want, sad-whatever! Requests are closed as I'm no longer writing for this book. Some milestones: #1 in Sans #1 in Kris

    Completed  
  • ~ 𝐄𝐱𝐩𝐢𝐚𝐭𝐢𝐨𝐧 ~ {𝑵𝒊𝒈𝒉𝒕𝒎𝒂𝒓𝒆 𝒙 𝑹𝒆𝒂𝒅𝒆𝒓}
    170K 6K 31

    100 years after the tragic events of Dreamtale, the two brothers continue a war of hate and love. Any AU unfortunate enough to get in the way of the darker brother's path is either conquered or destroyed. Your universe, Recoveryswap, just so happens to be in the most recent crossfire. But with your personality and luc...

    Completed  
  • ~ 𝙳𝚒𝚟𝚒𝚗𝚒𝚝𝚢 ~ [𝐷𝑟𝑒𝑎𝑚 𝑥 𝑅𝑒𝑎𝑑𝑒𝑟]
    92.9K 2.9K 29

    100 years after the tragic events of Dreamtale, the two brothers continue a war of hate and love. Any AU unfortunate enough to get in the way of the darker brother's path is either conquered or destroyed. Your universe, Recoverytale, is a peaceful universe. Monsters and humans live together in harmony, and you simply...

    Completed  
  • The void in my heart (Gaster X Reader)
    29.6K 812 22

    You're a human girl, living on the surface with Frisk, who is your younger sibling. You one day find two children, who's been chased away from neighborhood to neighborhood. And with you're kind soul, you couldn't leave them to live in the streets. You take them in, and meet their father. But will one day, lose them, b...

    Completed  
  • Adopted By Monsters -Undertale × Baby Reader-
    157K 3.2K 39

    Spoilers! If you have not seen both pacifist and genocide routes of Undertale, get out! You have been warned! Sans finds a baby on the streets. The monsters of Undertale decide to adopt them. What can possibly go wrong? More than they thought. Undertale, images, music, and all that stuff does not belong to me. All c...

    Completed  
  • HP (W.D. Gaster x Reader)
    57.3K 1.8K 20

    You lost your father in the war against the monsters. If it was up to you every last being that fought against man would be sent to execution. But it wasn't your choice.... unless it was? That's when you decide to visit the underground. All you needed was one excuse to rage another war against the monsters this time...

  • ∆°{The Darkest Souls}°∆ | Gaster x Reader
    14.8K 593 7

    When the monsters were sealed in the Underground, a few humans, still loyal to monsterkind, went with. (Y/N) Was one of them. She was a Scientist, one of the most brilliant minds of the monster world, and ended up working alongside the Royal Scientist. W. D. Gaster. And, despite her knowing better, began to grow attac...

  • Gaster x Reader (Probably will be a Lemon)
    36.5K 815 8

    So I was really inspired to keep writing stories by someone who commented on one of my stories. You know who you are. I've been on here a lot and I've seen people actually reading my books... I'm so happy ^_^ Anyway... A backstory and How to read an X reader will be the first chapter... This'll probably end up being a...

  • You Promised (Sans x Depressed!Reader)
    37.6K 1.1K 5

    "Sans...you promised me..." "You promised you'd never leave me..." "Heh...I really am worthless, huh...?" "..." "I guess I should just let you be, then..." "Goodbye..."

  • We Are A Family (Multiversal FGOD Error Fanfic)
    122K 3.6K 14

    This picture does not belong to me, it belongs to Iyoth737 on deviantart. This is inspired by @harrish6 and their "Falling Into A Different Destiny" NaJ story. Read HWHBB and FiaDD before this. Thank you. Enjoy (or not)!

  • 2 Skeleton Bros Plus a Skeleton Sis (Handplates)
    11.6K 450 13

    You aren't as smart as Sans but you aren't stupid ether. You aren't as optimistic as Papyrus but you aren't pessimistic ether. You are always the in the middle. You have hope in getting out of the lab but you didn't have as much as Papyrus. Gaster keep you in a different place then Papyrus and Sans so you didn't Sans...

  • Swap fell Papyrus x Half Monster Half Human Reader Lemon
    10.6K 126 5

    You are sorta the Swap Fells' sister. Sans forces you to wear a cat ear headband and calls you Kitten while Papyrus treats you like a normal person ( except for when he's drunk. )

  • Undertale AU Sibling Scenarios
    256K 4.9K 22

    This will be similar to Undertale AU Oneshots only: They're your siblings! Yep, cute, edgy, or anything else! Feel free to request!(Requests are closed at the moment) No lemons, cause I don't do dat crap.

    Completed  
  • Nightmare X reader
    52.4K 1.2K 12

    Because I wanna make it and I'm bored of making real stories, thank you Nightmare Sans AKA (IHateTheStarSanses94) thank you so much ;-; Oh and btw please at all cost kill Nightmare Sans AKA (IHateTheStarSanses94) please? And if your back here Nightmare........Do NOT MAKE ANNOYING COMMENTS! GEEZ MY DUDE

  • Sunshine (Error!Sans x Reader) [COMPLETED]
    112K 3.6K 15

    20 year old (Y/N) is no ordinary human. About five years ago she was taken from her universe by Ink, a Star Sans who creates and protects AUs. He claims that she's different from other humans, an immortal being with special abilities, but (Y/N) doesn't believe him. Despite her doubt in him, Ink treats (Y/N) like his...

    Completed  
  • Don't Go {Gaster!sans x Abused/Depressed Female reader}
    36.7K 831 38

    I have NO plan. Please leave suggestions and feedback in comments! =3 *This story was written by a very angsty 13 year old with mental health issues. It is very cringey and old. Read at your own risk.*

    Completed  
  • Not Just Evil (Underfell Papyrus X Reader)
    164K 5.5K 32

    Underfell Papyrus is viewed as one of the most ruthless monsters in the underground but what is really under that tough persona? Thanks to Tamqul on Deviantart for letting me use their awesome artwork as the cover!

    Completed  
  • Underswap Papyrus X Female Reader
    15.5K 326 13

    Sooo, this is my first undertale fanfic and I just wanna see if people like it! This is gonna be the non-lemon clean version of my fanfic but if you want a lemon, 18+ version, then send some requests. Also, I'm open for other undertale fanfic requests so just ask. Thanks ppl!!! Btw, cover photo isn't mine. All rights...

  • Six Skeletons and The Waitress
    264K 12.2K 49

    A picture perfect family hides the fact that your life is filled with manipulation and abuse. When you move away after high school, you encounter more than one skeleton monster that often tests your anxieties. Hey...why are they acting like that? *updated description Published: August 16, 2019. Average word count: 5...

  • A New Soul (Sans X Female Reader)
    182K 3.2K 31

    (Y/N) absorbed a monster soul when she was little, gaining skeleton powers. Many years later, (Y/N) and her sister Frisk fall into the underground, meeting Toriel, their new mother, Papy, Undyne, and of course Sans. Will (Y/N) and Sans finally realize that they have feelings for eachother, or will Asgore find (Y/N) be...

    Completed  
  • "Be Mine"(AU sanses xReader)
    160K 2.9K 20

    (y/n) was born with magic power that anyone couldn't have ,She lives in a beautiful ,huge mansion living with her parents and her parents gave a present and its a puppy with a name of leo until,the day that her parents died in an accident, (y/n) was all alone ,what would she do now without her parents?

  • Sansxreader Oneshots[discontinued]
    807K 25.9K 85

    Tbh some of the one shots have multiple parts! And this is filled with trash! So yea, read if ya want to Slow updates sometimes WARNING : THERE IS A LEMON IN THIS BOOK, IT HAS A WARNING AT THE BEGINNING, IF YOU DON'T LIKE THIS TYPE OF STUFF THEN SKIP THAT PART OF THE ONE SHOT THANKS

    Completed