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  • I don't belong [Gaster x Reader] [Undertale]
    432 21 2

    [PREQUEL TO UNDERTALE] [TW: SUICIDAL THEMES] [This story contains a gender neutral protagonist who has a vulva in 18+ scenes] You get kicked from university, your life in shambles, and if that wasn't already bad enough you find yourself in a place where everyone seems to want to kill you because of your human soul. ...

    Mature
  • Just Leave (Gaster x reader)
    1K 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...

  • ❝𝐖𝐡𝐲?❞ ⌊⌋ 𝚇𝙶𝚊𝚜𝚝𝚎𝚛 𝚇 𝚁𝚎𝚊𝚍𝚎𝚛 ⌊⌋
    1.1K 81 4

    ·. . . . ✧· . . . . ✧· . . . . ✧· . . . . ✧· . . . . ✧· . . . . ✧ 💭🌿🍃 ;; 𝚂𝚒𝚗...¿𝚌𝚊𝚜𝚊 𝚍𝚒𝚌𝚎𝚜? ¿𝙽𝚊𝚍𝚒𝚎?...*𝚜𝚞𝚜𝚙𝚒𝚛𝚘𝚜* 𝙼𝚞𝚢 𝚋𝚒𝚎𝚗, 𝙳𝚎 𝚝𝚘𝚍𝚊𝚜 𝚏𝚘𝚛𝚖𝚊𝚜 𝚗𝚊𝚍𝚒𝚎 𝚖𝚎𝚛𝚎𝚌𝚎 𝚎𝚜𝚝𝚊𝚛 𝚜𝚘𝚕𝚘....𝙿𝚞𝚎𝚍𝚎𝚜 𝚚𝚞𝚎𝚍𝚊𝚛𝚝𝚎. 🖌️🎨🧷 ;; ¡Gracias G! Espero que tu mundo salga muy...

  • Игра без правил (XGaster × Y/n)
    449 42 3

    Будучи ученицей 10 класса, ты даже и не представляла, какое количество событий успеет с тобой произойти. Выделить можно то, что монстры теперь официально являются сожителями с людьми, после того, как выбрались на поверхность. В твоей школе появились новые ученики и учителя, многие из которых, представители данной расс...

  • We Speak In Hands (Gaster x Female!Reader)
    43.5K 2.3K 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  
  • ✨️❤️GASTER X LECTORA - GOLDEN RED FLOWER❤️✨️
    2.6K 260 26

    Humanos y monstruos convivían en paz en la superficie, hasta que la guerra estalló, rompiendo la armonía que había reinado durante generaciones. Te encontraste en medio de un conflicto devastador, obligada a tomar decisiones difíciles para proteger a aquellos que amas y defender los ideales de paz y justicia. Fue en m...

    Mature
  • To Hell and Back (Gaster x Reader)
    13.4K 746 35

    "What's that look for? Are you perhaps unhappy to see me?" "Oh no. Oh no, quite the contrary, my love. I've craved to be with you for the longest time" ***** You were sure that you would have captured a Monster, at all costs. But were you sure that you would have captured not a Monster's body, but a Monster's heart? *...

    Completed  
  • W. D. Gaster x Reader Oneshots (Requests Closed)
    135K 1.8K 11

    I am completely enamored with this character right now. Finally, someone I can unleash my 'dad' kink on~ They are most likely not going to be canon to his character at all, but I'll try to keep some things straight. But I am sticking to the theory that Sans and Papyrus are his kids. Hope y'all like em! :3 Cover art...

    Mature
  • Soy un idiota [One-shot] {G!Sans × Lectora}
    335 47 1

    "Nunca sabes lo qué tienes hasta qué lo pierdes" .... Corrijo eso siempre supiste qué lo tenías pero nunca pensaste qué lo ibas a perder.

    Completed  
  • Реакция XTale и EpicTale на F.Т/и
    25.7K 842 27

    В этой истории, тебе 29 и ты ростом 170, ибо это равный рост между 150 или 180. Хотя тут уже ты выбираешь, ибо откуда я знаю какого ты роста. Они оба двух метровые. У меня вообще рост 153, поэтому я точно не могу знать как ты выглядишь. В этой реакции я постараюсь сохранить каноничность персонажей, но так же возьму х...

  • Only mine. [G!Sans x Reader]
    11.7K 824 32

    Hoy en día, los monstruos y humanos conviven en un ambiente de armonía en su mayoría. Al estar en la Universidad, la época de la juventud tanto para monstruos como para humanos, no hay forma de librarse de los amigos, fiestas, tentaciones, amor, dolor, placer y demás. Ese esqueleto, te hará sentir cada una de esas exp...

    Mature
  • Gsans x reader
    1.8K 33 11

  • The royal Gem (G!Sans x Lectora)
    1.4K 187 25

    (t/n), una joven de la realeza británica que, desde su corta edad tuvo que sumir al cargo de reina, un camino difícil y estresante para que una pequeña tomase. Siempre fue una chica a la que se le pudieran cumplir todo lo que quisiera, viajes, vestidos, todo; pero bien se dice que el dinero no compra el amor ni la fel...

    Completed   Mature
  • ~✨🍓 Т/И и Х!Гастер 🍓✨~
    4.6K 462 23

    Здесь будет фанфик про Х! Гастера и читательницу. Возможно отклонение от канона и нелогичная последовательность. Постараюсь писать интересно. Приятного всем прочтения

  • X-Gaster [Реакция] [Ответы на вопросы]
    2.5K 99 10

    Здесь я попытаюсь максимально вжиться в роль X-Гастера и поотвечать на вопросы фанатов)

    Completed  
  • Void Heart
    1.3K 35 7

    The True Gaster x Female Fanfiction

  • Gaster X Reader
    88 2 2

    FIRST TIME DOING A X READER,AND A FANFIC,AND A STORY TOO ON TOP FOR THAT,SO....HISS

    Mature
  • Gaster x Reader:⭐The Gentle Scientist⭐
    157 5 1

    •🌹A Royal Scientist Named W.D Gaster Found What Love Really Means🌹• 🌹Written By:iiCocoa🌹

  • I Wouldn't Mind | Gaster x Reader
    907 23 3

    [Y/N] [L/N] is a 23-year old girl who lost her parents because of the Human and the Monsters war at the age of 13. She was left with her abusive auntie, Getting beaten up, kicked, punched, being treated like a slave everyday.Because of that she forgot how its like to be loved or to love. Until One day, She gave up and...

    Mature
  • 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...

  • Handplates Gaster x Reader The Secretly Brocken Promise
    6.4K 98 5

    its all about (Y/n) relationship as Best friend's they've been friends sins kids until ther grew up as Adults They made a promis many years ago that they'll protect ech other and all weys stick together Better or worst By Plus they dont know they have a Crush at ech other But when gaster made sans and papyrus Gaster o...

  • Subject 108 (Gaster x Reader)
    37.5K 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
  • A Ghost - Gaster x Reader
    33.4K 564 14

    You had bought a new home only a couple weeks ago. You settled in nicely and you didn't mind the loneliness. Though... Your not as alone as you thought... The reason why you moved stayed a secret as it sounded stupid. A ghost. Not exactly as you would randomly feel hands touching you at random points and even whispers...

    Mature
  • W. D. Gaster x Reader
    188K 3.3K 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
  • Gaster x Reader- Not Your Fault
    106K 3.3K 13

    You're a human who has fallen down into the underground. There you meet a certain skeletal scientist and his sons. Will you get close to the family or will you become their enemy. Loosely based on TheBombDiggity666 Dadster comics (which you should totally check out if you haven't already) and occurs before frisk's ap...

    Completed  
  • Gaster X Reader
    17.6K 307 12

    I have nothing better to do so what the hell gotta take a risk now and again, eh? Hope you enjoy!❤

    Completed  
  • ...
    134 7 4

    Mature
  • A Mask Of Scars (Gaster x Reader) (ON HOLD)
    10.4K 488 32

    This story is old and the big ew. Please don't read until I change the bio or I will commit slip n' slide, sauce on the side, sewer slide.

  • XTale (XGaster x Fem.XReader)[Закончено]
    5.6K 349 14

    В этой истории XТ/и им как Мама или Тётя. (Им это Чара и Фриск)

    Completed   Mature
  • Por fin nos vemos | W.D Gaster
    343 30 9

    Después de tanto tiempo soñando con el mismo monstruo, te encuentras con el aprovechándote de los fallos de la línea temporal de Frisk.