1 - 20 of 789 Bookmarked Items in Swapfell Papyrus (Undertale)

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  1. *

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    Summary

    [Y/N] [L/N] is a powerful mage with a bloodline well-known throughout the ages and her family have always been celebrated. They, however, despise how their bloodline trapped monsters beneath the ground. But, that is for another day. In not being able to afford basic accommodation for university, they had to rely on an old (and terrible) friend named Bethany. For some reason, most of Bethany's skeleton mates despise [Y/N] but why is that? Apart from the fact she is a mage?
    Just because she has a kindness soul, it doesn't mean she will stand for their bullshit.

    Language:
    English
    Words:
    88,685
    Chapters:
    43/?
    Comments:
    245
    Kudos:
    974
    Bookmarks:
    213
    Hits:
    38,691
  2. *

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    A pair of brothers moved into your home. Only problem was, they didn't know you were there. Until you suddenly became their pet (the petting and cuddles were too good to give up). But would they feel the same if they actually saw you?

    Series
    Language:
    English
    Words:
    14,185
    Chapters:
    10/10
    Comments:
    92
    Kudos:
    828
    Bookmarks:
    129
    Hits:
    8,663
  3. *

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    Summary

    You’re six months into your career as an electrician and for the first time in your life, you’ve got your shit together. Go you!

    When the job brings you to a mansion inhabited by skeleton monsters and your ex-girlfriend, things change. The wiring in the house is fried, the skeletons are suspiciously evasive about the basement, and your ex keeps inviting you for sleepovers.

    You just want to get through the repairs without setting the place on fire. Keeping your sanity intact would be a nice bonus.

     

    Or another anti-harem fic, but in this one, the girlfriend is into you too.

    Series
    Language:
    English
    Words:
    80,666
    Chapters:
    13/?
    Comments:
    787
    Kudos:
    1,306
    Bookmarks:
    361
    Hits:
    27,802
  4. *

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    You have no idea when the world went to shit, but your pretty sure it was either when the dead came back to life and chowing down on anything with a pulse OR it was when you flunked out of college. Either way the world sucks now. You aren't entirely sure how you've survived this long either but your pretty sure it's due to your handy dandy rule book that you always follow to the T. well you follow it most of the time to the T. and everything was going great until you were basically kidnapped by a pair of skeleton monsters. That's went your world went from pretty ok to down right H, E double hockey sticks.

    Language:
    English
    Words:
    64,515
    Chapters:
    23/?
    Comments:
    250
    Kudos:
    1,033
    Bookmarks:
    229
    Hits:
    18,740
  5. *

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    Sans has put in the bone work.

    For fifteen years, he's raised Papyrus.

    Not even counting the time loop.

    And now some pretentious ancient bones want to have a say?

    Oh hell no.

    -

    Said "ancient bones" are mortified.

    How were they supposed to know the short depressed skeleton was barely two decades old?!

    Language:
    English
    Words:
    200,233
    Chapters:
    48/?
    Comments:
    1,742
    Kudos:
    1,327
    Bookmarks:
    290
    Hits:
    45,423
  6. 79

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    Summary

    Monsters have come to the surface, and with that a lot of probelms have been caused, so maybe a marriage between two people from the two races might help?

    Language:
    English
    Words:
    63,984
    Chapters:
    37/?
    Comments:
    510
    Kudos:
    441
    Bookmarks:
    79
    Hits:
    13,354
  7. *

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    Summary

    The Skelton sub-species is dying out in every universe.
    Gaster is worried about that and decided to do something about it.

     

     

    (Should I be making a new skeleton reader story...no.
    Am I going to anyway...yes.)

    Inspired by Making a Monster by absurdmagewrites

    and my own fic, I'm No Human.

    Series
    Language:
    English
    Words:
    19,370
    Chapters:
    8/?
    Comments:
    169
    Kudos:
    930
    Bookmarks:
    213
    Hits:
    15,771
  8. *

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    Summary

    You're new around here and just trying to get by.

    You really should've known better.

    *A SWAPFELL FIC*

    This time, with he/him pronouns! (Includes some content from The Hamper where the Reader was gendered)

    Series
    Language:
    English
    Words:
    182,622
    Chapters:
    38/38
    Comments:
    158
    Kudos:
    572
    Bookmarks:
    158
    Hits:
    25,261
  9. 12

    Tags
    Summary

    When you decided to stay in Ebbot City, you didn’t expect your life to intertwine with monsters—let alone fall in love with them. What began as simple friendship soon unfolds into something far deeper, as familiar faces begin arriving from unfamiliar worlds.

    In a home filled with secrets, laughter, and quiet heartache, you’re drawn into a web of connection that transcends timelines. But love is never simple, and in a multiverse of infinite versions, learning who to trust—and how to hold it all together—might be your greatest challenge yet.

    Because sometimes, the most powerful thing you can offer… is your heart.

    Language:
    English
    Words:
    12,316
    Chapters:
    11/?
    Comments:
    11
    Kudos:
    53
    Bookmarks:
    12
    Hits:
    882
    • 10 Jul 2025

      Rec

      Bookmark Notes:

      Such a unique and well written story!! I love the way its written and wish more stories are like it. You can really feel the soft and intimate moments shared between the characters and I just adore it, it shows that you dont always have to share words to create an intimate environment in your writing.

      Definitely a feel good fic for me!! Its a good fic to read if you want to settle down on a rainy day and drink hot coco <333

    • 10 Jul 2025

      Public Bookmark

    • 23 Jun 2025

      Public Bookmark

    • 22 Jun 2025

      Public Bookmark

    • 19 Jun 2025

      Public Bookmark

  10. *

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    Summary

    One day, you wake up in the body of an otherworldly being, impossibly far from home and lacking most memories of your past life. Your body's first and original occupant is who transported you here by pure accident, and created an infrangible link between your souls, melding the both of you into one.

    Five years after you were first tugged into this alternate reality, you thought the storm had calmed. Then the machine that caused your life to turn topsy-turvy reactivated by itself. And it just happened to pull you into yet another universe, this time filled with variants of yourselves.

    Hiding your nature had never been easy, but you seriously underestimated how stubborn all these skeletons are.

    Series
    Language:
    English
    Words:
    122,224
    Chapters:
    20/?
    Collections:
    2
    Comments:
    930
    Kudos:
    1,790
    Bookmarks:
    417
    Hits:
    47,101
  11. 20

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    Summary

    Soulmates, oh sweet soulmates! Each and every person hopes to find the person destined for them.

    Or at least, that's what they used to do, now that humanity has lost its magic after the war (War? What war?) soulmates have only become a cute fairy tale or an expression of love for the wrong person. And how can you blame them, if you've spent your whole life without knowing about the existence of such a thing, you can't expect everyone to give the deserved value to a word like 'Soulmates'.

     

    But hey, what was that noise?!

     

    It seems like an entire civilization of monsters has come out of the mountain! (And for some reason, it seems that somehow there are similar copies of each monster?!) What a scandal! The world is in panic, there are humans against it, there are humans in favor... While you feel something inside your ribcage pounding hard, trying to escape towards the mountain... In my opinion, maybe you want to see a Doctor.

    Language:
    English
    Words:
    10,180
    Chapters:
    5/?
    Comments:
    18
    Kudos:
    83
    Bookmarks:
    20
    Hits:
    1,156
  12. 87

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    Summary

    I'm gonna be honest. There isn't enough sub skelly smut out there guys. I just wanted more.

    Language:
    English
    Words:
    7,076
    Chapters:
    3/3
    Comments:
    63
    Kudos:
    740
    Bookmarks:
    87
    Hits:
    10,342
  13. *

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    Summary

    Your life wasn't anything special in your opinion. Your days mostly just included going to university lectures or bumming around in your apartment. That not so slowly began to change one summer, when you happened to make eye contact with a tall, dark and handsome... skeleton? Wait, that's a lot of skeletons... and are they supposed to be this handsy?!

    Now you find yourself having to handle armfuls of bones and more puns than you could count time and time again but, honestly, you couldn't be happier!

    OR

    Female!reader being pulled into lots of domestic and fluffy situations with as well as growing closer to the many different Sanses and Papyri, with some romance finding its way in there, too.
    (Discontinued but to be rewritten when I have the time)

    Series
    Language:
    English
    Words:
    126,635
    Chapters:
    23/23
    Collections:
    1
    Comments:
    276
    Kudos:
    476
    Bookmarks:
    159
    Hits:
    21,516
  14. 53

    Tags
    Summary

    In general, you cannot seem to catch a break.

    Of COURSE you'd fall underground. Now you're stuck in a dingy shed and two deranged skeletons, one of which is clingy as hell and absolutely refuses to leave you alone.

    (Or, uh, maybe clingy isn't the right descriptor for not letting you leave. Eh. Being captive never hurt nobody.)

    ...At least he's cute.

     

    WOAH, WHO SAID THAT????

    Series
    Language:
    English
    Words:
    6,422
    Chapters:
    3/?
    Collections:
    1
    Comments:
    78
    Kudos:
    231
    Bookmarks:
    53
    Hits:
    2,869
  15. *

    Tags
    Summary

    You were done trying, you decided. Done with college, done being ignored, done with existing. You'd never be good enough for anyone, so you decide to just... die.
    But your death doesn't exactly go to plan.
    Now you have to find a way to stand again, to hope again, to feel again, and now you have some help, but its hard to grab helping hands when touch makes you sick and your Shadow constantly pulling you down.
    But you will stand, and hope, and feel. Because you were stubborn like that- and so were these skeletons.

    ... Hold on, whats wrong with your Soul?

     

    (rewrite of Shot in the Dark)

    Language:
    English
    Words:
    37,435
    Chapters:
    11/?
    Comments:
    140
    Kudos:
    601
    Bookmarks:
    147
    Hits:
    11,940
  16. 78

    Tags
    Summary

    Hold tight.

    When the barrier fell, the spell preventing humans from using magic broke with it and you, along with your twin, became one of the first mages in a millennia. The monsters emerged from beneath the mountain hungry for retribution against the humans who trapped them there and the newly formed Circle of Mages responded in kind, launching the start of a bloody conflict.

    Three years on, the two factions finally agree on peace terms. You are the Second Mage, subordinate only to the First. You want one thing: justice for the death of your twin at the hands of a dust-mad monster.

    Pull.

    When a soulmate bond snaps into place between you and Captain Sans Serif's brother, Papyrus, your goal becomes harder to pursue. The unfulfilled bond between you and the Captain only complicates things further. Your rage burns, warring with the two new links that have been thrust upon you.

    Sacrifice, you find, has many faces, and all of them are looking at you.

    Break yourself in two.

    Language:
    English
    Words:
    28,662
    Chapters:
    4/40
    Comments:
    147
    Kudos:
    247
    Bookmarks:
    78
    Hits:
    4,002
  17. 3

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    Summary

    Rus' brother got himself banned from another of his favourite coffee shops for his silly shenanigans. Black's only option now is to send his nervous little brother in to retrieve his favourite cup of coffee. Thankfully for Rus there is a really nice (and beautiful) girl there.

    Language:
    English
    Words:
    1,456
    Chapters:
    1/1
    Comments:
    5
    Kudos:
    10
    Bookmarks:
    3
    Hits:
    81
  18. 21

    Tags
    Summary

    You had to leave that place, you knew transferring wasn't going easy but you couldn't stay, you just hope this time... this place... these people... it could be better. You just didn't quite expect to be meeting this many Skeleton monsters never mind just on your first day. Maybe these guys could be your freinds, your allies...? Only time will tell.

    A reverse harem fic focused on Sans and Papyrus from UT, UF, US, SF.
    Inspired by a flufftober prompt list

    Language:
    English
    Words:
    8,660
    Chapters:
    9/32
    Comments:
    24
    Kudos:
    118
    Bookmarks:
    21
    Hits:
    1,878
  19. 10

    Tags
    Summary

    You've known Mutt for months now and have been traveling with him for most of that. These are your experiences in space. Things get weird and weirder, probably.

    Mutt attracts awkward like Mothman to the world's largest lamp.

    Series
    Language:
    English
    Words:
    1,523
    Chapters:
    3/?
    Comments:
    6
    Kudos:
    70
    Bookmarks:
    10
    Hits:
    965
  20. *

    Tags
    Summary

    The monsters are free from the underground, but they didn’t all make it. Papyrus, Sans younger brother is dead, leaving Sans to care for the two children he left behind. After a long night of work Sans finally relents and hires a nanny/housekeeper. Enter you, just another human down on her luck and running from her past. This job seemed like an easy way to pass the time and get paid until your past inevitably caught up to you. At least that’s what you thought, until you started developing feelings for the odd skeletons. Now you're having strange dreams, and all these new skeletons keep turning up.

    Can you help them? What is Sans hiding? And what is with this new gaggle of skeletons?

    ************decided to update the rating to mature because, well, we all know where this is going.******************

    Series
    Language:
    English
    Words:
    169,855
    Chapters:
    53/?
    Collections:
    1
    Comments:
    628
    Kudos:
    583
    Bookmarks:
    138
    Hits:
    23,325

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