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  • Can I take you to Dinner? Mafi-fell!Sans x Reader. [COMPLETED]
    207K 6.5K 33

    "How rude, not even gonna ask for a name??" He teased. "Why are you here?" You glowered, raising the whisk. The skeleton scoffed: "Well, glad you asked sweetums! Name's Sans, Sans the skeleton." - Y/N, a ritzy waitress at Grillby's is plucked from her world of pancakes and Orange juice into the gun-slinging, smoke-bre...

    Completed  
  • Big Sister Undyne
    11.4K 573 15

    Underfell is a dark world with the major rule of kill or be killed. Even though children are suppose to be secluded from this rule, that doesn't stop monsters from hurting children. Undyne is a monster who lives in Waterfall. Under the care of Gerson. One day while out on a walk the fish monster stumbles across a baby...

  • Sweetheart
    2.8K 76 11

    When a young 18 year old girl parents died leaving her to take care of her 2week old sister . The girl name is winter and her baby sister is frisk . One day while working at a diner at night a skeleton sans walked in and he was with Don Dee , the same night she had her sister in the office . The mobsters heard cr...

  • Sooner or later your gonna be mine (Mafiafell sans x chubby reader)
    20.7K 514 12

    ⚠READ DESCRIPTION PLEASE⚠ Y\n is the older sister of frisk, who is a singer. Y\n is a chubby waitress at most of the bars her sister works at, to keep an eye on her. What happens when a mobster boss takes interest in the chubby waitress. I am very bad at writing and doing description's please forgive me!!. Anyway I do...

    Mature
  • My Little Lady. ~A Mafiafell Frans Sequel~
    7.8K 138 10

    The sequel of "Some Day You're Gonna Be Mine." Frisk joins the Mafia... but Sans is keeping an important secret from her. A secret that will change both of their lives.

  • a father's love Mafiafell sans x child reader
    16.9K 358 5

    sorry for the cringe and this my first book enjoy

  • Save me
    55.6K 489 6

    Hey this story includes sin and lust and cursing but hope you enjoy ( try not to get cancer

  • Kustard Story (Complete)
    61.6K 1.1K 13

    (This is my first story so no judge plz) "Your a cutie Sansy" Red said. He's drunk he doesn't really love me "Sure" I said back *broken* *depressed* *Change* *Love( *¯ ³¯*)♡*

  • Mafiafell sans x Reader
    59.1K 1.1K 25

    1. The art doesn't belongs to me 2. This is my first story 3. This Fanfiction's start was inspired by the comic-artist ' STARINGBACK' And this is my first time writing this soo it's sometimes cringe and dumb... I'm sorry if I make any grammatical mistakes! (Contains: blood, construction Plans and the fuel for the dir...

  • Chat Logs | Sans x Reader
    550K 27.2K 86

    Sans and Alex happen to meet trough a chatbox. What will be the outcome when two completely different people become more than friends? This is an actual slow burn holy shit

    Completed   Mature
  • A Bad Fuckin Temper (Underfell Sans X Female Reader)
    118K 4.5K 41

    You're 17,Your name is Y/N,You got a bad temper.You we're walking home,after a shitty day of school,you then heard a group of kids laughing. "The fuck is it now with those kids?"You walk towards them and see that they're picking on a smaller kid."Hey!Get the hell-"They look at me and the smaller kid starts running.The...

    Completed   Mature
  • Never Look Back. (Underfell Sans x Reader)
    113 4 4

    You and Sans had two things in common. One, you both hated each other. Two, your families were abusive. So without your parents permission, you go online and find someone in a similar situation as you. You both agree to meet up and run away together, considering you both were in desperate need of cash. What happens wh...

    Mature
  • Why Him? | Underfell Sans x Reader
    198K 6.2K 35

    *WRITTEN IN 2016* "Can someone please just tell me.... Why him.....?" Confidence. That emotion has been coming to you a lot ever since you had met him... But Why him...?

    Completed  
  • UnderFell: Brothers Don't Always Get Along
    31.2K 643 12

    The underfell brothers, sans and papyus, are living together, but will the abuse from UF! Papyrus be too much for sans to handle? What will happen to sans? Read for more information!

  • Underfell Suicide
    51.2K 914 14

    Underfell Sans is abused by his brother Papyrus and he just wants it all to end. He has been told he is useless and worthless and other things like that so many times he has started to believe them. This is my first book thingy and I'm only doing it for fun and to vent a bit. Don't expect anything good, it's going to...

  • underfell sans x reader
    23.1K 385 12

    you fell into the underground a few weeks ago. after escaping from toriel, you met a tall skele who was honestly one of the coolest guys you'd ever met. (sorry if this fic sucks haha, I've never done this before, never done any romance stuff, i have never been in a relationship before so wish me luck.)

    Completed  
  • Dark Secrets
    16.7K 581 26

    (Cover art is NOT MINE!!) (Last update March 18 2023 After Error destroys Underfell. Ink moves the Fell bros in with the classics and they dont understand but something draws them together. Meanwhile Ink tries to detour Error from his destructive ways and at the same time Reaper and Geno are forced into the Classics h...

  • Complete opposites
    4.3K 216 16

    Red had a good mess of issues in his life. The closest people to him would often persuade him to do things he wouldn't normally do... Terrible, heartless actions. He shows himself as a strong bad guy you don't want to screw with. Even though, deep down, he just wanted someone to be there for him. Somebody who is kind...

  • Just Stay.
    11.8K 427 29

    Classic has been seeing his friends die, over and over again. The human keeps on resetting. In one reset, it all goes wrong. He ends up in a whole new place than he was. The place looks the same just edgier. He finds someone that looks like him and his brother, just edgy. Classic's life changes completely. But soo...

  • Friends with Boner-fits [A Kustard Fanfiction]
    20.6K 619 18

    Sans and Red are roommates- that is, until Red wants to move due to Sans' shenanigans and mischievous pullings. Sans is struck with the realization that he doesn't want to see him go. A story about friends, pining, playful nicknames and a big fat crush that seems to get in the way.

  • forever mine
    29.3K 702 13

    I (fell sans) was walking with blue (swap sans) to classics house for a sleepover. but when classic welcomes us in... .

  • Switched up
    10.2K 629 5

    Instead of kidnapping the Sans from Underswap, what if Error kidnapped the Sans from Underfell instead? Error x Red You know how Error steals stuff and leaves his garbage in Underfell? how Red is Error's anomaly 13? I saw this, took it, and was like- THEY. NEED. TO. HOOK. UP. So boom, the rarest ship, shoved into a...

  • The Skeleton In My Dreams(Bill sans x reader)
    23K 467 24

    heya kiddos. what's up? this is just a story that I wrote for fun and I also had the picture(more like I couldn't find many bill sans x reader stories)soooooo I hope that you like this story and blah blah blah.....HOPE YA LOVE IT.

  • I Promise... (UnderFell Sans X Reader)
    19.9K 494 18

    Y/n lived with monsters on the surface but ever since the day they sent them down to the Underground she changed... she is much more terrified of everything but the only thing that makes her move on is the promise she made to her friends before they left.

    Completed  
  • I Fell For You (Kustard)
    54K 1.2K 17

    Fell had no one to rely on, after all in the place were he lived was "kill or get killed" . One day he decided to end himself by jumping off in a cliff, but instead of dying he woke up somewhere else.... (Pun intended in tittle) (Cover art was not made by me) I started this book in: 5/1/19

  • Gravitytale
    38.2K 1.1K 18

    Spoilers for after Undertale and after Gravity Falls! The twins are coming back to Gravity Falls for their winter break. However. The mountain just by Gravity Falls had a strange event a few weeks after the twins left. Monsters from the fabled "Underground" started coming out of Mt Ebott. With their savior, Frisk. Now...

  • It's a hot miracle {Up for adoption}
    27.5K 615 11

    Sans was dealing with nightmares and depression he never said a word about he always hid it with a smile, so he started cutting for a long time until, he met another version of himself which he found very very attractive, maybe this hot miracle will help him.

  • Under the mean face(Underfell Sans x reader)[COMPLETED]
    5.2K 106 22

    You had a happy family and never got a big problem, just that you never believed into you. Your parents tried everything to help you but in vain. One day, you decided to stop bothering them. You went to the darkest place of the forest and end your life. At least, that was what you wished. ( I'll skip the moment in the...

  • 【Angel of Blood】Underfell!Sans X Reader
    211K 6.1K 51

    Description: Once a long time ago, the multiverses were doing what they would normally do and were getting along just fine. Suddenly, it changed. Y/N L/N fell along with their parents into the Underground. In this world, it's LOVE or love.

    Completed  
  • Gamble ~Underfell Sans x Reader
    76.3K 2.2K 46

    not every story has a happy ending