1 - 20 of 311 Bookmarked Items in Possessive Sans (Undertale)

Navigation

List of Bookmarks

  1. *

    Tags
    Summary

    Despite the rising prices, your mother was as kind as to buy you a ticket for a really neat Cruise. What you didn’t expect was for it to be your downfall.

    From jealous orcas, to annoying sharks, to the calm and eerie cephalopod sirens. Will you make it back to land?

    Series
    Language:
    English
    Words:
    48,199
    Chapters:
    15/15
    Comments:
    196
    Kudos:
    678
    Bookmarks:
    135
    Hits:
    15,164
  2. 31

    Tags
    Summary

    Seeing a murder in an alleyway was the last thing Riley ever thought she’d see happening in her small town WestonVill. Having the murder disappear over night and the murders move in across from her was also something she’d never expect to happen. But here Riley Dottingham was, being pursued by two mentally unstable skeletons.

    If she could only figure out what they want from her.

    Language:
    English
    Words:
    12,054
    Chapters:
    5/?
    Comments:
    41
    Kudos:
    91
    Bookmarks:
    31
    Hits:
    1,219
  3. *

    Tags
    Summary

    After an incident at the world-famous Ebott Aquarium, you find yourself placed on a team of staff dedicated to the care of the prize exhibits at the facility; three notoriously aggressive skeleton siren monsters captured in the name of 'research'. An orca with a disturbing record of finding new ways to attempt to drown his keepers, a shark who's excellent at removing whatever stray hands come his way, and a deep-sea octopus whose past (and body count) are hidden behind endless stacks of legal papers. Despite their pattern of brutally murdering their ever-changing team of keepers, they all seem to immediately take a shine to you- a worryingly bright shine. A shine that won't go away, a shine that starts to unnerve you.

    However, the longer you work there, the more you see the inner workings of Ebott Aquarium. The more you realise the sirens you're 'caring for' aren't dumb beasts, they're deeply intelligent... they aren't mindlessly aggressive, they've gone insane, locked in those tiny glass cages.

    ... The more you interact with the sirens... the more you realise their murderous aggression might not be all that misplaced.

    Language:
    English
    Words:
    64,148
    Chapters:
    17/?
    Collections:
    1
    Comments:
    1,894
    Kudos:
    6,637
    Bookmarks:
    1,391
    Hits:
    155,931
  4. 73

    Tags
    Summary

    Ah yes. The classic ‘’Heather’ convinces the skeletons you’re an evil human so now it’s a EVIL reverse harem’. Right?

    Oh? But what’s this? A TWIST?

    Sans couldn’t live with himself after what happened to you, going near insane after you’re gone. So behind the others back he uses the machine to undo what he did, except it didn’t. He can still feel his sins crawling on his back.

    Oh well, it’ll all be worth it once he has you back in his cold hands again. Screw the other skeletons.

    Language:
    English
    Words:
    44,658
    Chapters:
    5/?
    Comments:
    134
    Kudos:
    302
    Bookmarks:
    73
    Hits:
    3,700
  5. *

    Tags
    Summary

    Disgusting... It was the only word you could use to describe the world and the people inhabiting it. Ever since you lost the only person who truly mattered to you in your sorry excuse of a life, you hated the world and everyone and everything in it. But maybe it can be better. But maybe it won't.

    Especially when your father (one of the kings of the mafia) tries to sell you off like some bargaining chip in his back pocket to a pair of skeletons. The worlds gone to hell and all they can think about is wealth and who will inherit what. At least your not going to just lay down and take it like they want you to do. But what do you do when one of them is so damn persistent?

    Language:
    English
    Words:
    142,180
    Chapters:
    23/?
    Comments:
    556
    Kudos:
    725
    Bookmarks:
    140
    Hits:
    22,317
  6. *

    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:
    105,124
    Chapters:
    20/?
    Comments:
    362
    Kudos:
    777
    Bookmarks:
    190
    Hits:
    20,641
    • 16 Oct 2025

      Rec

      Bookmark Notes:

      Despite the spelling errors, it's a really brilliant fic. I really like everyone's characterizations and how real everyone feels.

      It's good to see that thing's have cleared up in chapter 20- and that the house arrest is finally over... Really wondering what would happen next- especially now that Sans knows it wasn't all a lie.

      Hoping for updates. Ch. 20

    • 12 Oct 2025

      Public Bookmark

    • 17 Sep 2025

      Public Bookmark

    • 26 Aug 2025

      Public Bookmark

    • 20 Aug 2025

      Public Bookmark

  7. *

    Tags
    Summary

    You’re just an average, happy human, going about life, trying to forge your way in the world. Fortunately, you’ve landed a nice job that pays well, you’re steadily and reliably working your way out of the debt you gained from moving to the city, and you found a great apartment (with a chill roommate, Sans, a polite skeleton monster with puns up his sleeve and an indecipherable gaze) for surprisingly little rent.

    Everything’s fine.

    And then, without warning, two more skeletons seem to show up out of nowhere at your and Sans’s shared apartment. The first to appear is Red, a hot-blooded, sharp-grinned alcoholic who isn’t shy to share his less than savoury intentions with you, with crude gestures and pick-up lines galore.

    ... And the second is a tall, broad, but quiet skeleton who immediately goes by the pseudonym Skull, sporting a huge crack in his head and a single, engorged red iris, that never seems to stop staring at you.

    You’re not sure why both of them won’t leave you alone, or why Sans seems so desperate to stop them from interacting with you... But hey, what harm could come from it?

    Series
    Language:
    English
    Words:
    180,230
    Chapters:
    42/42
    Collections:
    5
    Comments:
    3,432
    Kudos:
    8,289
    Bookmarks:
    1,498
    Hits:
    229,510
  8. *

    Tags
    Summary

    Frisk sang for a living. She sang in clubs that were populated by mobsters, murderers and the most violent criminals her city had to offer. She honestly thought things couldn't get any worse until corruption in the form of a grinning skeleton came strolling into her life. His name: Sans.

    She tried to run, but no matter where she went he was always waiting for her.

     

    Chapter 34 finally up!

    Language:
    English
    Words:
    226,958
    Chapters:
    38/?
    Comments:
    11,239
    Kudos:
    28,985
    Bookmarks:
    2,745
    Hits:
    1,073,833
  9. 14

    Summary

    PWP: Bad Sanses x Human!Reader
    [Featuring Killer, Cross, Dust, Horror, Error & (no) Nightmare]

    — Depicted in established relationships with all of them!
    — Whole thing's a hit or miss. I'm too scared to reread them (⁠٥⁠↼⁠_⁠↼⁠)

    Words:
    4,825
    Works:
    5
    Bookmarks:
    14
  10. 24

    Tags
    Summary

    Sans did not remember his previous name, only that he had been human. Rebirth in Undertale was novel, but he adapted, until he realized that the universe he was in was not the original one.

    Unfortunately, it was too late when the machine took him to another universe, into a room full of skeletons.
    ——————————————————————————————
    Sans no recordaba su nombre anterior, solo haber sido un humano. Renacer en Undertale fue una novedad, pero se adaptó, hasta que cayó en cuenta de que el universo en el que estaba no era el original.

    Lamentablemente, ya era tarde cuando la máquina lo llevo a otro universo en un cuarto lleno de esqueletos.

    Nota: Sé que suena como tragedia, pero en realidad es una historia bastante esponjosa de curación, o al menos eso intento. Nuestro protagonista tiene mucho trauma y lo va a sanar en una mansión llena de esqueletos incómodos

    Language:
    Español
    Words:
    24,644
    Chapters:
    5/?
    Comments:
    15
    Kudos:
    101
    Bookmarks:
    24
    Hits:
    2,576
  11. *

    Tags
    Summary

    **DISCONTINUED**

     

    (Y/n), a high ranking Platoon Commander in the Military, was on a mission with her squad when her plane was shot down by an enemy ship, leaving her stranded on an unknown island, with none of her comrades in sight.

    It would have been all fine an' dandy... if she wasn't surrounded by three Alpha Skeletons and one Omega Skeleton. All of which want to fuck or be fucked by her.

    So now here she is, having to assess her dominance as an “Alpha” to get by with her limbs still attached and her clothes still in one piece. Even if one of them looks like he came straight from Satan's asshole.

    Language:
    English
    Words:
    113,924
    Chapters:
    40/40
    Collections:
    1
    Comments:
    1,757
    Kudos:
    4,885
    Bookmarks:
    628
    Hits:
    140,386
  12. *

    Tags
    Summary

    Life was going pretty steady for you with a stable job as a receptionist a few blocks away, an apartment to yourself with your cat Chip and a quiet lifestyle. Monsters had come out from the Underground a few months back and they've trickled in on your city as they fight for their legal rights amongst Humanity once more.

    Politics always seemed to bring out the worst in some people, even your own co-workers, as monster hate groups started to swell within your community. You have managed to avoid them until recently where you are forced to take sides, when things begin to go south an unlikely skeleton comes to your rescue and you're soon thrown admist monsters.

    With the threat of magic being banned, even criminal, you find yourself standing on the front lines with your new found friends and when things start heating up you have to find help in the most unorthodox of places.. and from the most peculiar of scientists.

    Series
    Language:
    English
    Words:
    183,341
    Chapters:
    32/32
    Comments:
    494
    Kudos:
    1,718
    Bookmarks:
    257
    Hits:
    52,182
  13. 52

    Words:
    592,566
    Works:
    3
    Bookmarks:
    52
  14. *

    Tags
    Summary

    Sans finds his SOULmate while he's in heat, terrible luck for both you and Sans. He then proceeds to fuck everything up even worse by threatening to kidnap you if you don't start dating him.
    Can you make this relationship work?
    Or will you find some way out of this?

    Series
    Language:
    English
    Words:
    40,467
    Chapters:
    27/?
    Comments:
    516
    Kudos:
    1,589
    Bookmarks:
    234
    Hits:
    41,521
  15. 30

    Tags
    Summary

    It’s late at night and you can’t seem to sleep unlike your boyfriend Sans. Damn, if only you could do something to preoccupy yourself…

    Language:
    English
    Words:
    1,861
    Chapters:
    1/1
    Comments:
    18
    Kudos:
    312
    Bookmarks:
    30
    Hits:
    8,624
  16. 28

    Tags
    Summary

    This year we're doing Yandere October 2024!!
    Following @ozzgin on Tumblr's prompt list with any UTMV Sans or Papyrus.

    Here, we mostly have drabbles, some longer than the others. A specific yandere prompt for each day and each character!

    Content Warning: YANDERE. If you do not enjoy reading that kind of horror, please scroll.

    Language:
    English
    Words:
    7,264
    Chapters:
    22/22
    Comments:
    116
    Kudos:
    223
    Bookmarks:
    28
    Hits:
    5,135
  17. 8

    Tags
    Summary

    In a world where people are able to born with soulmates, you desperately wanted a soulmate as a kid. Only to find out that not only were you an omega but, you didn’t have a soulmate

    Or at-least that’s what you thought before you were cornered in a grocery store by a giant Skelton monster that claims to be your Alpha.

    Unfortunately for him, you’ve grown content with not having a soulmate and being alone, causing tension between the two of you as he tries to be there for you while you are trying to survive as a omega in a society that looks down on them.

    Now the two of you have to figure out what you want while dealing with a society against both omegas and Monsters, Pervy alpha’s who don't know what no means, The human who freed the monsters shipping you and him, your new ‘alphas’ brothers who are hostile to you all because you are human, HIS SON?!?!, his toxic baby mama and to make it all worse?

    He’s a chunky himbo and you like that a little too much.

    Well, at-least you have your roommate (he’s my oc)

    (This is a redone of my previous story “Head Over Heels” with some differences in the story. Constructive criticism is more than welcomed. Story was made before Deltarune chapter 3+4)

    Series
    Language:
    English
    Words:
    8,935
    Chapters:
    2/45
    Comments:
    2
    Kudos:
    35
    Bookmarks:
    8
    Hits:
    524
  18. *

    Tags
    Summary

    Emilie (Reader) is a gentle and kind person who is on the verge of a mental breakdown due to the mistreatment of her boyfriend, Jericho. Manipulative and narcissistic, her boyfriend becomes Papyrus' best friend. She thinks her fall will never end.

    But in the midst of all this emotional fuss, Sans will be like a lifeline in her miserable life.

    Yet, will it be the same for the little skeleton? Will our beautiful girl represent his only salvation or eternal damnation for his lost soul?

     

     

    Part 1 : The end of all things is synonymous with renewal (Chapter 1 to ??)
    Part 2 : Building on a Non-Solid Foundation (Chapters ?? to ??)
    Part 3 : Repenting through a path full of thorns (Chapters ?? to ??)

    ALSO AVAILABLE IN FRENCH !!

    Language:
    English
    Words:
    130,647
    Chapters:
    29/?
    Comments:
    327
    Kudos:
    502
    Bookmarks:
    111
    Hits:
    15,265
  19. 68

    Tags
    Summary

    This fic is based on a VERY important character from my story Aggre(g/v)ation, and as such, contains massive spoilers for that story. If you don't want to be majorly spoiled, make sure you've read Aggre(g/v)ation first before going into this! Thank you!

     

     

     

     

    This will be a compilation of stories related to Hit (Mafiafell Sans), everyone's favourite evil bad man, and what he did with himself after the events of Aggre- plus a mini au based on if his original plan succeeded. Enjoy!

    Series
    Language:
    English
    Words:
    5,981
    Chapters:
    2/?
    Comments:
    67
    Kudos:
    673
    Bookmarks:
    68
    Hits:
    9,042
  20. 33

    Tags
    Summary

    A kind woman and her sweet daughter live a simple life together in the woods, in peaceful bliss. That is, until you prick your finger. They say that a drop of blood in the ocean can draw in sharks from a mile away, what happens when that blood thirsty shark catches a whiff? More blood is bound to be spilled. But this time, its not yours.

    Language:
    English
    Words:
    713
    Chapters:
    1/?
    Comments:
    21
    Kudos:
    145
    Bookmarks:
    33
    Hits:
    1,980

Filters

Filter results:
Submit

Include

?
Include Ratings
Include Warnings
Include Categories
Include Fandoms
Include Characters
Include Relationships
Include Additional Tags
Include Bookmarker's Tags

Exclude

?
Exclude Ratings
Exclude Warnings
Exclude Categories
Exclude Fandoms
Exclude Characters
Exclude Relationships
Exclude Additional Tags
Exclude Bookmarker's Tags

More Options

Bookmark types
Submit

Clear Filters

Navigation