1 - 20 of 31 Works in Tsundere Sans (Undertale)

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  1. Tags
    Summary

    (FellSwap Surface AU)
    Ever since you met him, he's always turned everything into a competition. How he managed to do that to a date, you'll never know.

    Series
    Language:
    English
    Words:
    5,435
    Chapters:
    2/2
    Comments:
    18
    Kudos:
    77
    Bookmarks:
    13
    Hits:
    735
  2. Tags
    Summary

    Papyrus gives Razz the greatest Gyfttmas gift of all: affection.

    Note: this is pre-relationship, but they're both into each other.

    Series
    Language:
    English
    Words:
    1,493
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    14
    Hits:
    77
  3. Tags
    Summary

    Direct sequel to "To My Date, With Hate, Love Sans" (read that or you won't understand this one).

    (FellSwap/Swapfell Red Sans Surface AU)
    You and Sans may have finally kissed, but now, a partial misunderstanding has sent you both into panic. Since your roommate is tired of watching you both dance around one another, it's time to take action! The gloves are off in this one! Will Sans be able to fix this misunderstanding, or does Papyrus have to lock you two in a closet after all?

    Series
    Language:
    English
    Words:
    7,841
    Chapters:
    4/4
    Comments:
    38
    Kudos:
    88
    Bookmarks:
    3
    Hits:
    594
  4. Tags
    Summary

    Stuck in an abusive relationship that you don't even recognise being as such. Your boyfriend tries to make it up by letting you get a pet.
    He's a train wreck as far as BittyBones go, constantly abused, abandoned and then returned to the store. His fate seemingly decided as the store finally agrees to put down Edgy.
    After meeting, the two souls begin to try piecing together their lives together. It's not going to be a smooth journey.
    A story about abuse, violence, depression, eventual love and learning to overcome the pain with your Bitty companion.

    Series
    Language:
    English
    Words:
    55,621
    Chapters:
    9/?
    Comments:
    405
    Kudos:
    718
    Bookmarks:
    149
    Hits:
    6269
  5. Tags
    Summary

    Precursor to "Matchmaker Papyrus and his Two Tsunderes", and follows "The Sans Situation".
    (FellSwap/Swapfell Red Sans & Papyrus Surface AU)

    Sans may have bucked up the courage to tell his brother how he felt about you, but that didn't mean he was ready to be so direct with YOU. However, when your roommate informs him that you are sick, he almost lets his emotions get the better of him.

    Series
    Language:
    English
    Words:
    8,785
    Chapters:
    4/4
    Comments:
    19
    Kudos:
    69
    Bookmarks:
    4
    Hits:
    667
  6. Tags
    Summary

    Precursor to "Matchmaker Papyrus and his Two Tsunderes" and "To My Date, With Hate, Love Sans".
    Reader is the nurse roommate from those stories.
    (FellSwap/Swapfell Red Sans & Papyrus Surface AU)

     

    You introduced your roommate to the Skeleton Brothers in hopes you would be a good friend to Papyrus. However, their constantly butting heads with Sans was starting to concern you. If you had known what was about to go down that afternoon, you wouldn't have been worried at all.

    Series
    Language:
    English
    Words:
    3,145
    Chapters:
    1/1
    Comments:
    8
    Kudos:
    22
    Hits:
    254
  7. Tags
    Summary

    Addition to "To My Date, With Hate, Love Sans":

    (FellSwap/Swapfell Red Sans & Papyrus Surface AU)
    Papyrus wanted to repay you for being a supportive friend while he kicked some bad habits, and he loves his bro and wants him to be happy. When he finds out that both you and his brother are completely oblivious to your mutual crushes, he schemes with your roommate in order to remedy that. A comedy of errors ensues because you're both tsundere as hell and Papyrus doesn't have enough BBQ sauce for that.

    Series
    Language:
    English
    Words:
    4,475
    Chapters:
    1/1
    Comments:
    17
    Kudos:
    48
    Bookmarks:
    2
    Hits:
    393
  8. Tags
    Summary

    Podfic of "Wine" by FlamingFlyingFoxOfDoom
    Original Summary:

    "Sans has...complex, feelings about this human Papyrus befriended.
    ----------------------
    Very much inspired by popatochisp's version of Swapfell
    https://archiveofourown.org/users/popatochisp/pseuds/popatochisp "

    Language:
    English
    Words:
    13
    Chapters:
    1/1
    Kudos:
    7
    Hits:
    205
  9. Tags
    Summary

    When you accidentally threw a smoothie at the Captain of the Royal Guard's face, you wholeheartedly thought he'd jump over the counter and clock you right in the kisser. Instead, only he told (yelled) at his brother to never step foot in your place of work again. Bullet dodged, right?

    It's too bad he needs your help to solve a series of murders plaguing Newest New Home. And that you happen to be soulmates. He also wants nothing to do with you?

    Womp womp.

     

    [Just something that's a little more lighthearted than "Dust and Ichor", while sharing the same drabble format. Each chapter will have 10 drabbles and each drabble should have about 100 words, though it varies depending on what program it's pasted in ಠ_ಠ]

    Series
    Language:
    English
    Words:
    13,000
    Chapters:
    13/?
    Comments:
    239
    Kudos:
    466
    Bookmarks:
    83
    Hits:
    5320
  10. Tags
    Summary

    Sans has...complex, feelings about this human Papyrus befriended.

     

    ----------------------
    Very much inspired by popatochisp's version of Swapfell
    https://archiveofourown.org/users/popatochisp/pseuds/popatochisp

    Language:
    English
    Words:
    701
    Chapters:
    1/1
    Comments:
    7
    Kudos:
    95
    Bookmarks:
    7
    Hits:
    576
  11. Tags
    Summary

    You are a firm believer in justice with a penchant for getting into trouble. Your most recent encounter has gotten you involved with the monsters- most noticeably, with Sans and Papyrus Serif, the two most feared skeletons in Ebott High.

    Somehow, they've taken a shining to you

    (Sans/Reader/Papyrus)

    Language:
    English
    Words:
    39,269
    Chapters:
    11/?
    Comments:
    160
    Kudos:
    266
    Bookmarks:
    55
    Hits:
    2157
  12. Tags
    Summary

    you jumped into the underground, made your way through the ruins, and then you met sans. he likes what he sees and decides he's gonna keep you around for his own amusement. He's a nasty lil skeleton who never fails to remind you that he owns your ass and you kinda like it, but you also really don't. Consent as well as whether you like him or not is kinda a blurred, greyish area. Nevertheless, shenanigans and angsty love feels ensue

     

    this will be shamelessly smutty and kinda twisted with nihilistic ideologies, dark humor and a fucked up lack of morals because I like that shit.

    Language:
    English
    Words:
    99,929
    Chapters:
    42/42
    Comments:
    447
    Kudos:
    764
    Bookmarks:
    102
    Hits:
    19146
  13. Tags
    Summary

    The barrier of underfell is broken. It's been a month, and monsters are finally allowed to move into the city. You're staying in a small cheap apartment waiting for your newest property to finish, when you get a rude noisy neighbor. Does he really have to play his music so loudly. It's not even good music. You're sick of this. You're not listening to him stomping around, yelling or… playing video games. Oh wait, you know that video game . Time to put special plan "get back at your jerk neighbor" into action. Just because your a vampire and stay up all night, doesn't mean he can be a jerk.

    A story about developing friendship, good laughs, and teaching Sans the meaning of friendship and love, when all he's known is the horrible world of Underfell.

    Series
    Language:
    English
    Words:
    270,669
    Chapters:
    55/?
    Comments:
    4526
    Kudos:
    6583
    Bookmarks:
    823
    Hits:
    94185
  14. Tags
    Summary

    “I’m boooooored…” you moaned. The two of you were playing Jenga for what felt like the hundredth time. The assortment of board games that you’d both gone through already laid haphazardly strewn about the carpet.

    Sans flicked a block out of the stack, equally as entertained as you were. “wood else do ya do when yer snowed in?”

    “Let’s see… movies, prank calls, board games…” you mused, listing off the things you’ve done together already while removing a block. “…cleaning?”

    “fuck no.”

    You looked at the mess of board pieces and spinners on the floor. “Guess we’ll do that later, then.”

    Language:
    English
    Words:
    4,637
    Chapters:
    1/1
    Collections:
    4
    Comments:
    19
    Kudos:
    157
    Bookmarks:
    17
    Hits:
    1123
  15. Tags
    Summary

    “WHAT ARE YOU LOOKING FOR OUT THAT WINDOW?” The blue asks.

    “Freedom.”

    “FREEDOM FROM WHAT?”

    Edgy opens one of his sockets looking the blue bitty over. They’re so stupid. Does he not realize he's in a cage right now?

    “From this… all of this.” Edgy waves his hand around in the air.

     

    This is a bitty story about three bitties who escape a shipment truck and end up on an adventure. Eventually finding a home, a friend, and a horrifying bitty they can only imagine understanding.

    Language:
    English
    Words:
    30,589
    Chapters:
    11/?
    Comments:
    497
    Kudos:
    1634
    Bookmarks:
    265
    Hits:
    18843
  16. Tags
    Summary

    Grillby was just another monster working in the underground. His bar was by far the most popular in all of Snowdin and Waterfall. His life was just as normal as the other monsters around him.

    One night, however, he found two small skeletons peeking around at the back of his bar. Now, you wouldn't leave two children in the harsh blizzard, would you? So, what did Grillby do?

    He took them in, of course.

    Language:
    English
    Words:
    18,636
    Chapters:
    11/?
    Comments:
    55
    Kudos:
    110
    Bookmarks:
    15
    Hits:
    1423
  17. Tags
    Summary

    Sans is the bad guy.

    Yeah...you're so scared.

    Language:
    English
    Words:
    503
    Chapters:
    1/1
    Comments:
    13
    Kudos:
    424
    Bookmarks:
    41
    Hits:
    2399
  18. Tags
    Summary

    A slice of life story involving Fell Sans and Fell Pap as they meet, fall in love and start dating.

    Each chapter will be a small scene from their daily lives, in no particular order. Feel free to suggest ideas you'd like to be in the story! Art and original idea by TheMusicalKittyCat, writing by Cognito.

    Language:
    English
    Words:
    648
    Chapters:
    1/?
    Comments:
    1
    Kudos:
    19
    Bookmarks:
    1
    Hits:
    139
  19. Tags
    Summary

    Side stories for The Skeleton Games Underfell. These aren't required when reading the main story. The barrier of Underfell is broken and the monsters are free. A month later they are allowed into the city. One morning you wake to the sound of your new jerk neighbor playing the loudest and worst music. Wait... you know that game. Time to get back at that jerk. And maybe make friends with him too. You could always use a new gaming buddy. Besides his rage face is so cute.

    Want to read The Skeleton Games

    Language:
    English
    Words:
    8,158
    Chapters:
    2/?
    Comments:
    100
    Kudos:
    650
    Bookmarks:
    87
    Hits:
    11934
  20. Tags
    Summary

    Oh golly gee, are you ready for this? This is Not Your Doll - Underfell AU edition! Here I will be taking my story chapter by chapter and inserting in everyone's favourite edgy monster cast into it.

    One cold winter day, you accidently run face first into the cement ribs of a dangerous skeleton monster. And feeling both annoyed and brave, you accidently threaten to dust him. Feeling marked, you then you run into him again. And again. And, honestly, you're not quite sure why he hasn't just killed you yet. Is he toying with you?

    This will also serve as a request fic! At the bottom of some chapters I will take a poll for some decision to be made about the story's progression. Sometimes it will be hidden, though, for something that has NOT happened in the canon core timeline :) Enjoy!

    Language:
    English
    Words:
    136,734
    Chapters:
    81/?
    Collections:
    2
    Comments:
    4136
    Kudos:
    3937
    Bookmarks:
    438
    Hits:
    75248

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