1 - 20 of 7,951 Works in Sans/Sans (Undertale)

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  1. Tags
    Summary

    This takes place in a post Underfell King Papyrus ending.

    Struck by under population, King Papyrus makes it law that all monsters left alive by the murderous little human have to procreate. This leaves Fell!Sans and The King himself in a tight spot. There are no female skeletons left in the whole Underground and both skeletons are sure they are the last of their species. Fell!Sans proposes something. With the help of the first Royal Scientist's machine to travel to other universes, he will find mates for breeding purposes.

    Tale!Sans is having his first sub heat as a female. This happens when there are only males left and the strongest one undergoes a gender swap. He knows this means Papyrus will have to be his mate.

    That won't do. They are brothers, for the Angel's sake! So he does what he does best, HE RUNS.

    Language:
    English
    Words:
    83,100
    Chapters:
    39/?
    Comments:
    428
    Kudos:
    759
    Bookmarks:
    80
    Hits:
    24,912
  2. Tags
    Summary

    Error, Nightmare, deux dieux, deux êtres emplis de solitude, deux regards qui se croisent et qui se comprennent.

    -🔥-

    Fiction très courte, écrite pour célébrer la fin de ma période d'examens :D !

    Series
    Language:
    Français
    Words:
    754
    Chapters:
    1/1
    Hits:
    0
  3. Tags
    Summary

    Doctor Frisk is given a new job (after their last one nearly ended) of watching two skelemers. There has been an egg thief haunting about the place, and the two in question are expecting their very first-and, if things go wrong, potentially only-pup soon enough, making them a target for the thief.

    Doctor Frisk will, of course, take this role very seriously.

    They just have...a few other things they have to work through.

    (A story primarily about Red and Blue and their baby, and kind of sort of about a human's dark secret they've carried with them for years.

    But, well, you know, who cares about that! Baby mer time!!!)

    Language:
    English
    Words:
    2,295
    Chapters:
    1/?
    Comments:
    2
    Kudos:
    3
    Hits:
    16
  4. Tags
    Summary

    It's the most wonderful time of the year and even Nightmare and his lovers are getting a chance to unwind for once. Granted that doesn't mean they're staying off the naughty list or keeping out of trouble.

    A Slice of Life fic with a Nightmarish poly of miscreants

    My Secret Santa Gyftfic for Kirango Rouge!

    Series
    Language:
    English
    Words:
    4,621
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    10
    Bookmarks:
    3
    Hits:
    51
  5. Tags
    Summary

    While their bros had a fun night of making whatever culinary masterpiece they planned that day, the lazier bros had their own quiet chill out session together. Only problem is boredom leads to a game of nerdy pick-up lines as things heat up between Red and Stretch.

    A Slew of Saucy Scientific puns with the request of flirting gone too far (in a good way wink wink) with Red and Stretch as my Secret Santa Gyftfic for the always lovely (and Madlading Mod) the Cute Cognito!

    Series
    Language:
    English
    Words:
    1,107
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    2
    Hits:
    20
  6. Tags
    Summary

    A crack opens in a breaking universe and Death peeks through to the other side. It seems like this "code" thing hasn't been doing its job, and there’s someone who's long in need of reaping. Death tries to relieve Geno of his suffering through, well, himself, but when that fails, there's no choice but to relieve his suffering some other way, right?

    Perhaps they could help each other.

    Language:
    English
    Words:
    4,619
    Chapters:
    1/?
    Bookmarks:
    1
    Hits:
    1
  7. Tags
    Summary

    You were a normal human. Seventeen, just got accepted into college. You had a full life ahead of you, close friends and family. You still had things to do. You weren't done yet.

    The universe doesn't seem to care, and you wake up in a lab to a narcissist skeleton and trauma.

    What the heck. This is NOT what you meant when you said you were tired of life, bro.

    ———————————

    Or, your soul is placed into the body of eight-year-old Papyrus.

    A retelling of Running Up that Hill, but Keigo and Apollo (Sans and Papyrus) are swapped.

    Lets see who has plot armor now.

    Series
    Language:
    English
    Words:
    11,392
    Chapters:
    6/?
    Collections:
    1
    Comments:
    42
    Kudos:
    146
    Bookmarks:
    38
    Hits:
    1,359
  8. Tags
    Summary

    Undertale and Underfell meet when most of the Aus gather together let see what happens when they meet after the system goes down.

    Language:
    English
    Words:
    1,828
    Chapters:
    1/?
    Hits:
    13
  9. Tags
    Summary

    Welcome yourself to a world of smut, questionable themes probably, and skeletons in love!

    All of these are drabbles I wrote directly in Discord and have since proofread, hence the title lol. Content warnings will be included on each chapter! :)

    Also yes, I renamed an entire ship cause the OG name was boring to me. Fight me.

    [Now with a Table of Contents!! Check the final chapter!!]

    Language:
    English
    Words:
    1,905
    Chapters:
    4/?
    Kudos:
    5
    Hits:
    150
  10. Tags
    Summary

    Dust calls Horror something he shouldnt, and Nightmare doesn't take it lightly.

    Language:
    English
    Words:
    1,609
    Chapters:
    1/1
    Bookmarks:
    1
    Hits:
    61
  11. Tags
    Summary

    Days. Months. Years. Shattered is forced to watch his life go by while he can't do a thing about it, trapped within a glass prison he can't escape from. For so long, his only objective was to escape his prison and ascend to the throne of power he so rightfully deserved. But alas, goals change with the constant passage of time. Shattered eventually finds himself developing feelings for his captor, his former friend who betrayed him. He shouldn't feel this way, and yet... he does. Love works in mysterious ways, does it not? It could insert itself in places that one wouldn't even dream of it appearing. However, it all made perfect sense to Shattered.

    After all, isn't love through a shattered mirror just as sweet?

    (Sequel to What Friends Are For. While this fic can be read without reading the original, some aspects may hit harder with context from the original.)

    Series
    Language:
    English
    Words:
    20,267
    Chapters:
    1/1
    Comments:
    1
    Kudos:
    4
    Bookmarks:
    1
    Hits:
    26
  12. Tags
    Summary

    You drown every minute, every second, with every breath you take. You haven’t breathed for so, so long. The icy waters are inside you, deep, deep inside you. All you could ever feel is cold and colder. You haven’t seen the sun in... so... long. It was so far away from you that you couldn’t even picture it anymore.

    And here was the sun himself.

    Here was that gasp of air that burned.

    You’ve been so cold for so long, the warmth feels like death.

    Alt summary: It's not easy but boy do I drag Killer (and everyone around him) kicking and screaming towards a healing arc

    Series
    Language:
    English
    Words:
    4,351
    Chapters:
    1/4
    Comments:
    2
    Kudos:
    10
    Bookmarks:
    1
    Hits:
    34
  13. Tags
    Summary

    Error gets raped by Nightmare every other day and tortured until he is forced to beg for help from the only one who could fight off the King of Darkness

    (I forgot to post this anonymously, ignore the orphaned one, it won’t be updated)

    Language:
    English
    Words:
    59,126
    Chapters:
    8/9
    Comments:
    8
    Kudos:
    80
    Bookmarks:
    15
    Hits:
    1,356
  14. Tags
    Summary

    Nightmare truly despised his brother, Or he thought he did.

    He truly did not expect was one of Ink's intrusions to be reckoning of his hatred, nor did he expect the sorry state his brother was in.

    ~~~~~
    Hi, this is just me making Dream suffer even though I have nothing against him. He's not even my favorite character.
    He does get a happy ending though.
    Anyway fun fact this fic was supposed to be 3 chapters but I've accidently doubled it over time, and it has taken me an entire year. in all honesty I don't know how I I've managed this.

    Language:
    English
    Words:
    22,647
    Chapters:
    6/6
    Comments:
    15
    Kudos:
    37
    Bookmarks:
    6
    Hits:
    929
  15. Tags
    Summary

    After going out to collect a debt Killer and Dust discover that their 'collateral' cleverly got switched. Now being on the Nightmare's gang radar Reader's life will be uncertain. Do they have the wit to survive? Or will they have to make a break for it and disappear?

    Language:
    English
    Words:
    37,843
    Chapters:
    12/?
    Comments:
    56
    Kudos:
    117
    Bookmarks:
    24
    Hits:
    2,870
  16. Tags
    Summary

    In the beginning, there was a collective of voices. The collective needed a muse, for they could not create full universes. The only things they could make were unwhole sketches, and from one of those sketches, came their much needed muse, who was named Ink.
    At first, Ink obeyed their needs. Created what they wanted him to. But when Ink wants to create on his own, the collective, "The Creators", needed another being, as their viewing of Ink's creations were deemed useless for their multiverse.
    That other being is a glitch that fell into the anti-void, Error.
    But, even though this issue is easy to fix, stubbornness leads to otherwise.

    Series
    Language:
    English
    Words:
    140,421
    Chapters:
    32/?
    Comments:
    188
    Kudos:
    236
    Bookmarks:
    47
    Hits:
    8,174
  17. Tags
    Summary

    MONSTER BITTIES FOR SALE! GET TO KNOW YOUR NEW BEST FRIEND TODAY!

     

    You've lived in Ebott city your entire life. Monsters have been fully re-accepted into society, given the Great Resurfacing happened decades ago. You've never heard of a "bitty" before now, but you've always wanted a pet, so why not give it a go?

    You're in way over your head when one of them starts talking like a person. A tiny, adorable, traumatized person that really would love if you stopped feeding them kibble.

    Language:
    English
    Words:
    109,684
    Chapters:
    25/?
    Comments:
    418
    Kudos:
    631
    Bookmarks:
    185
    Hits:
    17,461
  18. Tags
    Summary

    Geno was the happiest skeleton ever when Reaper asked him to marry him.

    Geno thought that was the happiest time of his life.

    But then, a miracle happened when he was pregnant with Goth.

    Language:
    English
    Words:
    3,745
    Chapters:
    1/1
    Kudos:
    6
    Bookmarks:
    1
    Hits:
    111
  19. Tags
    Summary

    A series of random short stories for my good friend.

    Language:
    English
    Words:
    1,811
    Chapters:
    4/?
    Comments:
    5
    Kudos:
    3
    Bookmarks:
    1
    Hits:
    29
  20. Tags
    Summary

    Cross left Nightmare to join the Star Sanses. But Nightmare hates to lose. He will teach him how to be a good dog.

    *Please read the tags in case there's something that could trigger you, thanks*

    Language:
    English
    Words:
    6,690
    Chapters:
    12/19
    Comments:
    44
    Kudos:
    138
    Bookmarks:
    19
    Hits:
    2,858

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