1 - 20 of 529 Works in W. D. Gaster/Reader

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  1. Tags
    Summary

    The void is cold. Unfeeling. A source and an end in one. Soon, Gaster becomes the same...until he sees you.

    A story of falling in love.

    Arc 1- Chapter 1 to Chapter 10
    Arc 2- Chapter 11 to Chapter ?

    Language:
    English
    Words:
    66,057
    Chapters:
    18/?
    Comments:
    293
    Kudos:
    1,645
    Bookmarks:
    285
    Hits:
    27,589
  2. Tags
    Summary

    A collection of nu carnival headcanons and requests from my Tumblr

    Language:
    English
    Words:
    18,887
    Chapters:
    14/?
    Comments:
    2
    Kudos:
    27
    Bookmarks:
    1
    Hits:
    544
  3. Tags
    Summary

    You and Sans have spent the last five years toiling in the lab on your magnum opus: a looking glass into alternate timelines. But when you test it one late night in the lab, the impossible happens and you are taken into a world much more violent and crueler than your own. Needing to survive until you're rescued, you will have to use all your wits, charm, and determination to convince three paranoid skeletons you aren't insane or a spy. Good luck, doll.

    Language:
    English
    Words:
    45,129
    Chapters:
    11/?
    Comments:
    122
    Kudos:
    340
    Bookmarks:
    83
    Hits:
    5,681
  4. Tags
    Summary

    I need more top dog big dick energy reader fics in my life.

    Language:
    English
    Words:
    26,806
    Chapters:
    9/?
    Comments:
    38
    Kudos:
    178
    Bookmarks:
    32
    Hits:
    5,017
  5. Tags
    Summary

    Basically, Reader can see ghosts, they fall into the Underground, and they meet the skelebros and takes it upon themselves to act like their mother (Reader is in their late 20s). Then they meet Gaster, as a ghost, and then chaos.

    I wrote this because of the lack of Anxiety!Sans fics btw

    !!!TEMPORARY HIATUS WHILE I TRY TO GET BACK INTO THE UNDERTALE FANDOM (MIGHT TAKE A WHILE)!!!

    Language:
    English
    Words:
    1,355
    Chapters:
    2/?
    Comments:
    9
    Kudos:
    30
    Bookmarks:
    6
    Hits:
    305
  6. Tags
    Summary

    With squinted bleary eyes, dizzy head and aching ticcing body covered in blood, the smoke finally cleared up a bit for him to see.. living skeletons..? Was he hallucinating? Sheesh, does he have to be diagnosed with another mental thing when he pays a visit to his therapist again?

    They don't look like normal skeletons, and normal skeletons would surely not be alive and so.. animated.

    Oh.

    No fucking way—

    He stilled, well, as much as he could while continuing to have a tic attack, eyes wide open from disbelief with tears tracking down his face while he glanced around at the multiple eyelights trained on him.

    or

    MC is a normal guy that has some problems had gotten transported to Undertale(?) through Sans's machine. How did he get there? By being a dumbass and following a scream inside the woods like a horror movie cliche, that's how.

    Language:
    English
    Words:
    1,115
    Chapters:
    1/?
    Comments:
    7
    Kudos:
    21
    Bookmarks:
    7
    Hits:
    210
  7. Tags
    Summary

    You're an engineer who works for Ebott's best research facility in one of the labs; your lifelong dream after finding a journal on Mount Ebott when you were a kid. When you aren't in the lab being smart, you're gathering materials at the abandoned doll factory for the machine you're trying to build.

    But one night, you meet a skeleton at the factory. Naturally, you lie about why you're there and say you're there to hunt ghosts. You befriend him and try to find a way to gather the materials while keeping up with that lie. But those lies catch up to you when you start to meet all the other skeletons.

    Edit: I've been going back to fix inconsistencies and add/remove details, I've gone up to ch 8 so far :)

    Language:
    English
    Words:
    63,270
    Chapters:
    24/?
    Comments:
    305
    Kudos:
    819
    Bookmarks:
    197
    Hits:
    15,761
  8. Tags
    Summary

    [👎︎✌︎☼︎😐︎ 👎︎✌︎☼︎😐︎☜︎☼︎ ✡︎☜︎❄︎ 👎︎✌︎☼︎😐︎☜︎☼︎]

    After you and Frisk freed monsters from the underground. You felt like your journey was finally over, that you helped free everyone. Or that's what you were supposed to feel. You couldn't help but feel like there was still something you needed to do.

    Language:
    English
    Words:
    7,842
    Chapters:
    14/?
    Comments:
    17
    Kudos:
    27
    Bookmarks:
    3
    Hits:
    387
  9. Tags
    Summary

    Life becomes more and more difficult either way.

    You begin to become a bit hopeless. As your band had failed, your over fancy mom wouldn’t leave you alone and you were basically broke. Imagine Your roommate and her friend being the only source of comfort! While you lived off of gas station money and Music that never made the cut, something bigger was happening...

    Who likes being pulled into another universe and meeting fictional video game characters?

    You do! obviously.

    Language:
    English
    Words:
    14,167
    Chapters:
    12/?
    Comments:
    21
    Kudos:
    49
    Bookmarks:
    11
    Hits:
    912
  10. Tags
    Language:
    English
    Words:
    865
    Chapters:
    8/?
    Kudos:
    12
    Hits:
    196
  11. Tags
    Summary

    [[WARNING EXTREMELY IMPORTANT: Due to Ao3’s new tag limit, I deleted well over 233 to publish and the work is exactly on 75, a lot of characters in this will not be mentioned, due to this check out the chapter index however, your favourite character may be in there but not mentioned due to the small tag limit!!]]

    An A-Z list of things that’ll be talked about as informative information on the sexual intimacy of characters.

    Curious how a character may be in bed? Come here to request a character you’re curious about or just see all the other characters I already have written.

    See how your favourite character is during intimate moments.
    Join The Discord today!

    Discord Server:

     

    SinMamaWorksServer
    (Multi-Fandom)

    Series
    Language:
    English
    Words:
    63,718
    Chapters:
    53/?
    Comments:
    391
    Kudos:
    2,583
    Bookmarks:
    161
    Hits:
    129,193
  12. Tags
    Summary

    You were a sane, normal, and very sane human with modest dreams of making your way in Ebott through hard work, thrifty living, and good manners.

    W. D. Gaster was the ruthless head of the Gaster crime family with modest dreams of upending Ebott through magic, science, and murder.

    Six months after returning to the city you once fled, you’d found your ticket to mundanity in a steady job in the Underground. Six seconds after meeting a suspicious human in his territory, Don Gaster found his ticket to power in you.

    A tale of two weirdos fighting and falling in love.

    Language:
    English
    Words:
    56,343
    Chapters:
    11/?
    Comments:
    66
    Kudos:
    145
    Bookmarks:
    24
    Hits:
    2,388
  13. Tags
    Summary

    Kinktober challenge, offer up some ideas and I will write. you can include your OC

    Language:
    English
    Words:
    12,110
    Chapters:
    13/13
    Comments:
    63
    Kudos:
    147
    Bookmarks:
    11
    Hits:
    24,453
  14. Tags
    Summary

    WELP, I was reading a Anti-Harem fic, and got inspired… It may also be inspired by the Gamer.

    Language:
    English
    Words:
    1,611
    Chapters:
    1/?
    Comments:
    3
    Kudos:
    8
    Bookmarks:
    1
    Hits:
    121
  15. Tags
    Summary

    Gaster is a monster, mentally. You know this, yet you pretend you don't know.

    Language:
    English
    Words:
    229
    Chapters:
    1/?
    Comments:
    1
    Kudos:
    4
    Hits:
    76
  16. Tags
    Summary

    After your friends keep pestering you about resting, that you work too much, that you need vacation and etc, you (without your consent) move to your old grandma's house in the middle of nowhere with only woods and a possible serial killer around, getting the oh so deserved vacation your friend keep insisting on.
    But guess what? After touching a mysterious machine your grandma had in her sex dungeon, you fucked up multiverse and have to work to bring those skeletons who have too much personalities.

    Soulmates? What is that? No, you're only looking to continue alive and with your sanity in check after this mess, let's pray that you therapist come back from her vacation in time!

     

    𝙶𝙴𝙽𝙳𝙴𝚁 𝙽𝙴𝚄𝚃𝚁𝙰𝙻!𝚁𝙴𝙰𝙳𝙴𝚁

    Language:
    English
    Words:
    5,869
    Chapters:
    4/?
    Comments:
    23
    Kudos:
    70
    Bookmarks:
    21
    Hits:
    754
  17. Tags
    Summary

    A collection of short stories mostly fluffy feel good stuff to make you feel cozy.

    Language:
    English
    Words:
    754
    Chapters:
    2/?
    Kudos:
    3
    Hits:
    170
  18. Tags
    Summary

    what will happen if your downloaded game starts showing signs of life? Well, you can be happy that it's probably the most interesting thing you've ever experienced in your life

    Language:
    English
    Words:
    15,404
    Chapters:
    10/?
    Comments:
    13
    Kudos:
    73
    Bookmarks:
    9
    Hits:
    1,356
  19. Tags
    Summary

    This is a companion fic to Soul's Therapy that is literally just out of context fluff. Like, I have so many ideas but I can't put them all in the main fic, so this one exists.

    Short chapters mostly, so a collection of drabbles just to make me feel warm and fuzzy emotions once in a while

    I DO NOT CONSENT TO HAVING MY WORK USED TO TEACH AI MODELS
    🚫AI🚫

    Series
    Language:
    English
    Words:
    10,274
    Chapters:
    12/?
    Comments:
    21
    Kudos:
    111
    Bookmarks:
    12
    Hits:
    2,318
  20. Tags
    Summary

    In a world where females are scarce and the Monsters are so used to death a young woman is forced to help save them. Although she is not the only one that had been summoned, the weight of her duty is still heavy. Hopefully with a bit of time she will succeed in her given tasks but until then she needs to watch out for those around her. As Monster's of all sorts come to ask to be her mate some don't take rejections so well. Thank goodness though that she has a few helping hands. Well they would be considered helpful if they left her alone for five gosh darn minutes.

    Language:
    English
    Words:
    65,929
    Chapters:
    9/?
    Comments:
    118
    Kudos:
    530
    Bookmarks:
    115
    Hits:
    13,092

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