Underfellsans Stories

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242 Stories

  • Marked in Red, Claimed in Gold (Mafiafell Sans x Reader) by clubofsnakes
    clubofsnakes
    • WpView
      Reads 402
    • WpPart
      Parts 8
    The skeleton shakes his head slightly, a boney hand sliding across his skull. "Ah- well- that wasn't free Doll, 'course you'll have to pay me for that..." He trails off, his cocky smirk ever present on his face as he looks you up and down for a mere second, "...little favor." He pinches his pointer finger and thumb together before rubbing them together. _____________________________________ (Y/N) is a bartender that was kept secret from the after hours patrons at the bar she worked at for two years. Her boss not wanting her to associate with the people that would further pull her into a world that she was scratching the surface of just by working there. But after staying just a few minutes later then she was supposed to she stands face to face with a gold toothed smartass with a devilish smirk- his red eyes trained on her every move. ______________________________________ There is cussing but let's be honest- there's cussing everywhere. Also posted on AO3 as clubofsnakes where additional chapters later on will appear there and not here. I was inspired by- @MissHoll-E-Socks with their story "Can I take you to dinner?" NONE of the art is mine.
  • Red Mask by SpiritWolfNura
    SpiritWolfNura
    • WpView
      Reads 246
    • WpPart
      Parts 8
    Underfell is a dark and dangerous place filled with murder in violence, and Sans and Papyrus are the pinochle of it all. So nobody would ever suspect Sans to come back after a lost bet. Maybe you haven't seen all of what's under Red's mask, huh? Request for Icecream_Shipper
  • When I Reset My Life by TheWorldOfUndertale
    TheWorldOfUndertale
    • WpView
      Reads 114
    • WpPart
      Parts 4
    When Fell and Original Frisk both have the urge to Reset, their plans don't goes as they expected, except something corrupted while they both reset at the SAME time. When the original Frisk realizes this, she begins to panic in fear, her (Yes, both of the Frisk's will be included as girls, sorry if you don't like that) mind begins to pound with questions. In the mean time, Fell Frisk have's her mind in complete confusion, her mind is spinning, her stomach is turning, she didn't know this could happen. From the Fell universe, she begins to show some of her negativity towards them and she soon thinks quickly and plays it off as a joke and acts up like their Frisk, but will she soon begin to warm up to them? Will they both become friends with the others from the different universe? But chances are, what if they both get to close to another?
  • Rescued by Radskull86
    Radskull86
    • WpView
      Reads 27
    • WpPart
      Parts 5
    FIRST FIC, plz leave help in comments! You take in a bitty, user is female First story, not turning on mature since it's just cussing and maybe some violence but probably not This is a you pov btw!
  • Wolf Strength (UnderFell!Sans x Reader) {DISCONTINUED} by thatirishgirl03
    thatirishgirl03
    • WpView
      Reads 620
    • WpPart
      Parts 6
    (Now people the title might seem confusing but you'll figure out why this was the title) You play as a character whom who fell into the Underground,you get to choose all the details about her (yup HER) the only thing is the personality. You had been here before but hadn't remembered as is was...diffrent
  • Hidden away UnderFell Sans x Reader by CancerConnoisseur
    CancerConnoisseur
    • WpView
      Reads 104
    • WpPart
      Parts 3
    Its been a while since you fell. You are currently being hidden in waterfall; behind a mysterious grey door that only Sans seems to know about or even see. You feel lonely. Only he visits and it's not always pleasent. The picture is not mine I got it off of DeviantArt. By RandomColourNote.
  • I Fell for you (An Underfell Sans x Reader Fanfiction) by Makayla2290
    Makayla2290
    • WpView
      Reads 83
    • WpPart
      Parts 1
    Once, there was a battle between two races. Humans and Monsters. The Humans thought Monsters were Vicious, Threatening and Merciless. Though the Monsters thought the same way. The Humans always treated the Monsters as if they were beneath them. So the monsters stood up to them. Eventually, The humans became tired of the monsters fighting back. That was when the war started. Both sides fought Viciously. In the end... The Humans won. Casting a Magic Barrier, they sealed them Underground, In the mountian of Mount. Ebbot... never to be seen again. Though, that was a very long time ago. Now to be considered a myth. A fairytale to frighten kids into not wandering into the forest or near the mountian... Correct? A young woman, about the age of 17, has been orphaned since she was young. Now abused by her Caretakers in her Foster home. With no will to live... She grows curious about the legends and rumors. About the Children "Dissapearing" and going "Missing", near the mountian. She sneeks from her "home", finding a large, Never ending Abyss. Falling down, hoping to end her life... Only to be given another chance at it. So here goes the start of Y/N's new life, free of the abuse and depression of her past home. ... ... ... Or so she thought...
  • chocolate with nuts(undertale au version) by StorySpinamu8
    StorySpinamu8
    • WpView
      Reads 72
    • WpPart
      Parts 1
    Underswap lizzie and underswap sans try to make money and have a fancy living by selling chocolate. Will they succeed? This is a parody of a spongebob chocolate with nuts.
  • Edge x Sci - Pocky game by lonely-starstruck
    lonely-starstruck
    • WpView
      Reads 77
    • WpPart
      Parts 1
    Slight nsfw - Edge and sci play a game of pocky - any requests? // I do not own image -- art belongs to kii-artt@tumblr //
  • UF sans x abused!reader by shyatheotaku-w-
    shyatheotaku-w-
    • WpView
      Reads 13
    • WpPart
      Parts 1
    you are an abused eighteen year old girl that has depression and an abnormality disorder that basically makes you hot asf(help meh) and you think your life is over until you meet a very bonely buddy ;)
  • Underfell Sans X Reader: A New Beginning DISCONTINUED by Bearab00
    Bearab00
    • WpView
      Reads 13,572
    • WpPart
      Parts 30
    (Y/n) was a cheerful young girl once. Her life couldn't have been better, that is until that fateful day. With the loss of her mother and becoming a victim of sex trafficking for many years, she decided that maybe death would be better. She decides to take her chances on Mt. Ebott. In the place she thought would finally end her life she finds... monsters? Will they be her saving grace or the end of her? How about a certain edgy skeleton?
  • An Unexpected Date  by Ihaztoomanyfandoms
    Ihaztoomanyfandoms
    • WpView
      Reads 199
    • WpPart
      Parts 3
    Red needs to talk to classic,about something he has hidden for a long time.....ever since he met him.
  • Sanscest Incorrect Quotes by InkyIsBest
    InkyIsBest
    • WpView
      Reads 5,651
    • WpPart
      Parts 32
    Ships/Characters: Error x Ink Nightmare x Cross Killer x Dream Dust x Blue Horror x Lust Geno x Reaper Sci x Fell Fresh, Epic,Classic etc. Creators: Classic/UnderTale by Toby Fox Error,Fresh,Geno by CQ Ink by Comyet Nightmare,Dream by Jokublog Cross by Jakei Peñaloza Killer by Rahafwabas Dust by Ask-DustTale (?) Horror by Sour-Apple-Studios Lust by NSFWShamecave Reaper by Ren Blue, Fell, Sci by The Au Community Epic by Yugogeer012
  • Away, then back again (Scifell fanfic) (((DISCONTINUED))) by VansenTheShipper
    VansenTheShipper
    • WpView
      Reads 8,265
    • WpPart
      Parts 9
    This takes place after everybody left from the Christmas party (CPAU). Sci is now sober but can't stop thinking about fell. He wanted to see him again. He wanted to go to Underfell. Fell... he was desperate to see him... even if for only one more time to see him. OK, so first things first! If you don't ship this, don't read this story! Second of all! The cover image was made by me on my phone at midnight XD Third of all! This story was purely made because I CANT FIND ANYMORE GOOD SCIFELL STORIES! D: I have literally searched every corner of the internet. (Okay, not every corner because some corners were too scary to go too) And finally! The age spans here are not normally in my personal head cannons, nor times of certain events, such as: Gaster falling into the core. Sci and pap (aka: Younger Classic Papyrus and Sans) are 8 years apart. Same with the other Sans' and Papyruses. But yeah! I hope you enjoy this story about to dorks falling in L.O.V.E. *cough* I mean love. ヘ( ̄ω ̄ヘ)
  • •.° A Heart Of Gold °.• by pretzel-P
    pretzel-P
    • WpView
      Reads 24
    • WpPart
      Parts 2
    [Underfell!Sans × Bravery!Reader] [May contain swearing.] [Story is written in 2nd person] [Also found on Quotev.]
  • Underfell - But You Could Never Understand by underfell_owo
    underfell_owo
    • WpView
      Reads 3,077
    • WpPart
      Parts 2
    Ever since Papyrus joined the Royal Guard, something changed. He started to brutally beat Sans, and he made him call him boss. Papyrus sees Sans as a lazy, pathetic slob who isn't good for anything. What happens when Papyrus finds out Sans had something happen to him? What happens if Papyrus finds a collar and a leash? ( PLEASE READ THE STORY INTRODUCTION & INFORMATION FOR MORE! )
  • A Fallen Nightmare by Alemeino
    Alemeino
    • WpView
      Reads 468
    • WpPart
      Parts 1
    Papyrus was never one to really care for anyone, but there are times when his armor isn't so tough. Especially when it came to his brother Sans. (Art not mine)
  • I Fell Down A Hole, Now I'm Here. [DISCONTINUED] by you_but_worse
    you_but_worse
    • WpView
      Reads 334
    • WpPart
      Parts 12
    After falling down a hole, and escaping the Ruins, Y/N is captured by an unknown person. Or monster? After meeting the skele brothers, one has offered shelter, but with a catch. The other? Emotional support and protection. Sure she might like one of the skele bros, but is it worth it?