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  1. Tags
    Summary

    Red wanted a better life for his six-year-old brother, so he saved his money, scored a new job and hauled the temperamental brat halfway across the city to a new apartment, far away from the cesspit they once called home. Falling in love with his punny next door neighbor wasn’t part of the plan.

    Kustard | 100 Word Drabbles | Romance

    (For best experience, read in Entire Work mode instead of Chapter-by-Chapter)

    Series
    Language:
    English
    Words:
    19,700
    Chapters:
    197/?
    Comments:
    2010
    Kudos:
    1020
    Bookmarks:
    58
    Hits:
    17523
  2. Tags
    Summary

    When her sister ventures into the most dangerous city on earth to solve a missing-person’s case, Frisk fears that she’s been kidnapped. Dropping everything in her hands to follow her, our protagonist ends up tangled in mafia business and dangerous dealings. As she deals with a determined skeleton, one kidnapping turning into so many more, doubtful monsters, a man who speaks lies as his first language, and the threat of mages returning to bring the world to chaos, it's pretty hard to keep her cool.

    Sans is the anchor in her storm, he’s everything she’s ever wanted; he's tall, handsome, confident, mysterious and kind. And although there's the small issue of him being part of a mafia, and to top it off, heir to the strongest mob in the world, Frisk can't help but feel like he's exactly what she needs to get away from the life she desperately hates. She wants to escape the claws of her foster family.

    Set in modern times.

    Language:
    English
    Words:
    78,780
    Chapters:
    20/?
    Comments:
    94
    Kudos:
    208
    Bookmarks:
    28
    Hits:
    2875
  3. Tags
    Summary

    Papyrus believes Undyne has been murdered, despite his brother trying to convince him otherwise. To find the culprit who killed his best friend, he hires two private detectives. Buried deep in the lies and corruption of the Fell mafia, truth waits, begging to be captured. Between the outbreaks of ODs, the confusing code about angels, and his own mafia and brother hiding the truth from him, Papyrus needs someone to trust in. That someone may very well be his only hope of revenge.

    Language:
    English
    Words:
    6,938
    Chapters:
    2/12
    Comments:
    9
    Kudos:
    3
    Bookmarks:
    2
    Hits:
    24
  4. Tags
    Summary

    Five years after the barrier breaks, human-monster relations are unstable at best. This story goes into the mechanics of monster (specifically skeleton species) procreation, the power of intent, and potential loss of immortality. We're rated M, but with substance, because life is rated M with substance. Between finding love, navigating a brave new world, and dodging another war, our heroes (and some new friends) have a long road ahead of them.
    There will also be skele-sex, so, enjoy that, fellow Undertale Trash Pandas.

    Language:
    English
    Words:
    31,170
    Chapters:
    14/?
    Comments:
    20
    Kudos:
    28
    Bookmarks:
    9
    Hits:
    463
  5. Tags
    Summary

    When Error discovers a secret Ink has been keeping from everybody, the very alliances the multiverse is based on crumble. And dark truths are revealed.

    Language:
    English
    Words:
    10,160
    Chapters:
    6/?
    Comments:
    11
    Kudos:
    26
    Bookmarks:
    3
    Hits:
    350
  6. Tags
    Summary

    Stars, it was deafening.

    Until finally everything sped up, like someone had finally put batteries in the clock whose hand had been stuck in one singular position for far too long; it all whirred into motion once again. However, that blaring screeching sound was still very imminent he realized, and he could finally pinpoint where it was coming from.

    Himself.

     

    He was screaming.

    Language:
    English
    Words:
    7,989
    Chapters:
    1/?
    Comments:
    1
    Hits:
    7
  7. Tags
    Summary

    All Stretch was trying to do was help the stray cat he found on his doorstep. Somehow, though, he ends up with a new pet and a roommate.

    Language:
    English
    Words:
    11,351
    Chapters:
    5/?
    Comments:
    43
    Kudos:
    73
    Bookmarks:
    12
    Hits:
    491
  8. Tags
    Summary

    you find a strange skeleton at night and decide to let him stay with you.

    chaos ensures.

     

    (i just want more error x readers okey)

    Language:
    English
    Words:
    11,199
    Chapters:
    7/?
    Comments:
    25
    Kudos:
    181
    Bookmarks:
    24
    Hits:
    1979
  9. Tags
    Summary

    A series of drabbles and short stories so they all have somewhere to live. This fandom inspires some of the oddest and cutest ideas. To start with, what is the return policy on a passed out skeleton? Second, its not good when the sketchy guy helping your investigation sounds nervous greeting the two monsters who just interrupted said investigation. Third, just where do little skeletons come from? More and more added as they come.

    Language:
    English
    Words:
    9,093
    Chapters:
    6/?
    Comments:
    10
    Kudos:
    11
    Hits:
    109
  10. Tags
    Summary

    It started with a kiss, how the fuck did it end up like this? Their deal was sex. That was it. Sex kept separate from their 'jobs'. The line was perfectly clear! Until it wasn't...

    Language:
    English
    Words:
    5,133
    Chapters:
    1/?
    Comments:
    1
    Kudos:
    8
    Bookmarks:
    2
    Hits:
    74
  11. Tags
    Summary

    You’re so tired of the time loops, but no matter how repetitive, you pick yourself up off your bed and stick to your routine because there are people who need you.

    Sans is so used to working alone, searching for a missing Papyrus and Frisk. No matter how much he tries or chases, they always wind up dead by the end.

    Perhaps working together can be just enough to break the loops and save them...or it may not be. Whatever happens, you’re just glad you got to meet Sans.

    Ch 1-16: To accept
    Ch 17-Present: With One Word

    Language:
    English
    Words:
    163,111
    Chapters:
    25/?
    Comments:
    720
    Kudos:
    772
    Bookmarks:
    133
    Hits:
    11009
  12. Tags
    Summary

    Undertale is a game well known across the world, with iconic characters and soundtracks to this day. It is one of your favorites and you love it very much. Still, it belongs to the fictional world, like every other game. An unreachable world.... Or so you thought.

    Language:
    English
    Words:
    16,401
    Chapters:
    6/?
    Comments:
    21
    Kudos:
    42
    Bookmarks:
    10
    Hits:
    518
  13. Tags
    Summary

    He doesn't remember where he is- Or why he was there- Or is there? He feels warm, and cold, and alone-
    Then he's suddenly enveloped by some skinny creature that calls himself Papyrus. And for some reason....This 'Papyrus', thinks his name is Sans? And that they are brothers?
    He doesn't recall being a brother... Or what a brother is, actually... Maybe he should ask? Or...should he run back to his cold, cold, home- That's so very lonely?
    Decision made- He smiles, "Hhhhnn-nhheeelllo....braahhhhttt-errrrr..."

     

    In a time where a reset corrupted Sans, and shoved him into the void, surrounded by Gaster, and other lost...things. Sans does not come back the same, and it is up to his new skeleton friends to help him figure out who he was- And what he is now.

    I've never written fanfic dear lord ahhhhhhhhhHHHHH!! I would love critique, just be kind cuz I'm a baby gfdbgzk. I want to improve my writing, so here I am!! I also just want to write sexy skeletons because Undertale has turned me into a monster fucker
    WHEN DID THIS HAPPEN TO ME
    WHERE AM I
    I HAVE NO REGRETS??

    Language:
    English
    Words:
    1,115
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    10
    Hits:
    38
  14. Tags
    Summary

    Sans is conflicted by night terrors and vague memories from previous timelines gone wrong. While they're starting to become more vivid, soon he starts to notice deviations from what he's grown accustomed to and Papyrus does something unusual that changes everything.

    With the River Person out of commission, Sans accompanies Grillby on a replenishment run through to New Home, all while wrestling with a feeling he just can't break about his long-time friend. As he gets to know Grillby in a newer light along with some changes that have come up due to past medical abuse, it's becoming more and more apparent that something or someone is interfering...

    CH 1-12 - CONFESSIONS
    CH 13-24 - DELAYS & DATES
    CH 25-32 - PAST RECOLLECTIONS & EXPERIMENTATION
    CH 33-37 - REBOUND ARC
    CH 38-45 - AGGRESSION & BONE MAPPING
    CH 46-54 - BAD BLOOD BONE BROS
    CH 55-63 - GRILLBY'S ILLNESS
    CH 64-74 - GRILLBY'S BOX & BEDROOM PLAY
    CH 75-??? -

    IF YOU ARE A MINOR DO NOT leave comments on the nsfw/sexytime chapters as this makes me EXTREMELY UNCOMFORTABLE!! ok thanks ilu UwU

    Language:
    English
    Words:
    389,447
    Chapters:
    78/?
    Comments:
    1671
    Kudos:
    1073
    Bookmarks:
    153
    Hits:
    20423
  15. Tags
    Summary

    Its that time of year again when we get to have fun writing about our kinky fantasies.

    Language:
    English
    Words:
    120,041
    Chapters:
    26/31
    Comments:
    121
    Kudos:
    28
    Bookmarks:
    2
    Hits:
    2840
  16. Tags
    Summary

    “This isn’t some costume party like back in the underground in any of our universes, this is a human tradition that we’ll get to experience above the surface! Doesn’t that sound so incredibly unbelievable?“

    Language:
    English
    Words:
    1,618
    Chapters:
    1/3
    Kudos:
    1
    Hits:
    12
  17. Tags
    Summary

    Papyrus and his Detective partner (you) have to solve a missing persons case. It turns into a huge undercover operation where you still have to rescue the missing person: Sans!
    Along the way there's shenanigans, swearing, sex, misunderstandings, bad puns, and you fall in love with your spiky partner's brother.

    Language:
    English
    Words:
    14,744
    Chapters:
    5/?
    Comments:
    29
    Kudos:
    65
    Bookmarks:
    18
    Hits:
    623
  18. Tags
    Summary

    Based on Handplates by Zarla on Devientart. Also posted on FF.net

    What would happen if Frisk where also a creation of Gaster?

    They where just things. They were not supposed to be sentient. They weren't supposed to be kind, or care for eachother. Especially not the human. But they where. They loved eachother, cared for eachother, and so badly wanted the pain to stop. And he wanted to stop hurting them, sometimes. But he would continue to do what was necessary.

    Even though 1-S made him proud so many times

    Even though 2-P never stoped believing in him

    Even though 3-F somehow wormed her way into his heart, despite being human.

    Language:
    English
    Words:
    19,004
    Chapters:
    6/?
    Comments:
    14
    Kudos:
    62
    Bookmarks:
    9
    Hits:
    824
  19. Tags
    Summary

    Mena lives in a world of horrors, a disturbing disgusting world.

    He finds a different one, under the mountain, and a family.

    He will help them burn the overworld to the ground and rebuild it.

    Language:
    English
    Words:
    12,395
    Chapters:
    9/?
    Comments:
    24
    Kudos:
    12
    Bookmarks:
    2
    Hits:
    126
  20. Tags
    Summary

    Mermaids are the social butterflies of the sea, living in sunny, shallow water together with the rest of their school. On the other end of the spectrum, meroctopuses are violent, antisocial fucks who like the cold and the dark, and who basically kill any competing predator they see.

    But they aren’t stupid.

    Red is proof of that, using his traps to hunt for food and saving his energy to ward off predators. So, how does he react when he finds the laziest creature in the ocean stealing his catch?

    Bribe him with more food in exchange for peaceful company, of course! The ocean is fucking lonely for giant predatory mer!

    Language:
    English
    Words:
    90,233
    Chapters:
    29/?
    Comments:
    861
    Kudos:
    670
    Bookmarks:
    122
    Hits:
    8419

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