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  • Bittybones for Dummies (a guide to bitties & lamias)
    5.8K 84 4

    Hello! This is a guide on cute friendos you can adopt from the undertale fandom. I am by no means an expert on bitties and lamas but I'm sure I can help out anyone who's completely new to all this a little. I hope you learn something new and enjoy!

  • The War Amongst Us (W.D. Gaster X Reader)
    64.3K 2.9K 24

    (Y\N) is a young female spy and soldier fighting in the War of Humans and Monsters. She is fighting on the humans' side of the war until a turn of events when she becomes apprehended by the enemy. What will happen when a young monster scientist tries to change her views? Thanks to Itachei on Deviantart for letting me...

  • {R A T T L E D * B O N E S} ~ Sans x Reader
    130K 3.3K 36

    You were walking on Mt.Ebott, when suddenly - you fall down a hole! You wake up there with no memory but your name, age and birthday (that might change, though...).

  • Not Just Evil (Underfell Papyrus X Reader)
    164K 5.5K 32

    Underfell Papyrus is viewed as one of the most ruthless monsters in the underground but what is really under that tough persona? Thanks to Tamqul on Deviantart for letting me use their awesome artwork as the cover!

    Completed  
  • Knock Knock {A Sans X Reader - Undertale}
    265K 7.7K 19

    You were always a curious child. One day, your curiosity took you too far. You lived not to far from a mountain, MT. Ebott, and always wanted to see what was on the top. Your parents had told you stories about the mountain and you had always wanted to see if they were true, being the naïve child you were. One day, you...

    Completed  
  • Ask Underfell Sans
    7.8K 264 45

    Ask your questions here and I may answer them, perhaps, most likely....if the boss is ok with it. # Third place in the 2nd Ohana Awards # I do not own Underfell. That right belongs to the people who created the AU. I do not own the cover art either

  • My Heart's Already Sinned ( Alastor X Reader )
    41.8K 1.2K 21

    Sent to Hell for seemingly no reason, you end up crossing paths with The Radio Demon. Will his presence be a blessing or a curse? Censored Swears Ahead Hazbin Hotel Created By Vivziepop Cover By @rykosen

  • Souls of the Brave and Forgotten~{sequel To kitten}~ *incomplete*
    4.7K 204 9

    After years of hiding, training, and planning. The monsters are finally ready to take on the humans.

  • Horror X Lust | My 'Little' Addiction
    61.5K 1.9K 22

    This is a story about Lust and Horror. This story is the least known love story, so I'm going to share it with you...

    Completed   Mature
  • Target Settled|Outer!Sans x Killer!Sans
    86.4K 2.9K 39

    |UNDER EDITING| Killer was loyal to stay within Nightmare's team, little to no emotion with no worries, until he stumbled across a beautiful alternate Universe. Upon meeting the sans of this universe, will Killer treat him the same fate as he once did in genocide or will he spare his life? -WARNING This Story Includes...

    Completed  
  • Frohe weihnachten wünscht NigtLust
    13 1 1

    nur eins meiner Bilder ^^

    Completed  
  • Soul Mates (Sans x reader)
    213K 5.4K 30

    Uh

    Completed  
  • 【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  
  • A Little Bonely (Sans X Reader)
    343K 8.5K 51

    Monsters always fasinated you. Ever since Frisk broke the barrier and freed the monsters, humanity didnt take it too well but they are slowly getting used to it. Slowly. Very...slowly. (btw Chara is depicted as a female in this story, and so is frisk. Dun be triggy) HEY ALL! This is my first fanfiction EVER! so dont j...

  • Not All Monsters are Bad (UF! Sans x Experimented! Reader)
    129K 3.4K 26

    You've been experimented by your own brother to see what could happen if he tried a monster DNA in a human, No one wants to get experimented by him so you decided you'll be his test subject but it went terribly wrong......

    Completed  
  • Northern Downpour (Underfell Sans x Reader)
    173K 5.1K 42

    (Y/n) goes to Mt. Ebbot in search of her brother Frisk. But what she finds instead amazes her.

  • The Way of the Lost - (Underfell Sans x Reader) || Discontinued
    17K 360 31

    Discontinued - DM me if you would like to write a finish for the story. (This is my first story, hope you like it and bear with me!) Since it was Monday today, it wasn't very busy. Just a couple of people here and there. A slow day. For some reason, you have a TV mounted on the wall in the store that showed the L...

    Completed  
  • Daughter of Death
    118K 6.8K 47

    Cover artist: punny-puntasy ! (TOLD IN YOU/YOUR) A reaper, a few gods, and a bunch of skeletons. The life of a reaper wasn't boring to her, everyday she would gather souls and lead them into eternal rest, and repeat. She watched creatures and Humans die, easily surpassing their lives and meeting once again in the un...

  • Tsundere Much? (Afterdeath)
    164K 6K 30

    After the Christmas party, Geno thought he'd never get to see Death anymore. Boy was he wrong! After a couple of chilling moments and heartfelt scenes, something happens to Geno's old timeline. But that can't be much of an issue because lmao they have the power of love on their side...right? (#1 genosans 1/1/19[How lm...

    Completed  
  • The Kidnap: Psychotic!Sans x Detective!Reader
    32.2K 1.1K 24

    This is a sequel. If you haven't read the first book, you're gonna have a bad time (or be confused, whichever)

    Completed   Mature
  • Bloody Desires; Horrortale!Sans X Reader
    363K 11.4K 66

    It's been a few months since the last neutral run and things have taken turns for the worst. No one is happy, Everyone is starving. An you are the perfect prey, falling into the deadliest trap known to the underground. He knows something and your determined to find out. Will you loose your head?

  • By Any Other Name (Flowerfell Sans x Frisk)
    31.4K 1.2K 28

    "What's in a name? That which we call a rose by any other name would smell as sweet." - Shakespeare A girl born with skin and blood that were a phenomena, little red "flowers" dotting her skin whenever she bled or whenever struck hard enough. As an orphan, Frisk Mercy finds herself at the Underfell Orphanage House for...

  • 𝐎𝐔𝐑 𝐎𝐍𝐄 𝐒𝐀𝐒𝐒𝐘 𝐒𝐄𝐑𝐕𝐀𝐍𝐓 ␈ ˢᵃⁿˢᵉˢ ˣ ʳᵉᵃᵈᵉʳ
    258K 8.6K 38

    status; completed. » fanfiction, very old book. tysm for reading <3 ps. hot ppl are those who reread it, ily hon <3 ➽───────────────❥ crackfic - various x reader. totally not the best, but meh. ➽───────────────❥ ➽cringy plot and story @luiexette ➽picture owner @ ➽undertale @toby_fox ➽error sans @lover_of_piggies ➽horr...

    Completed  
  • Void [Nightmare X Reader]
    182K 6.4K 37

    Y/N is the Guardian of nothingness. The shrub with flowers that she protects is home to all things that are considered to be nothing. When a walk in the woods allows her to make a new friend,a problem arises from the shadows. As Y/N tries to find balance between the protecting her plant and Nightmare a margin of error...

  • wrong number | sans .
    31.3K 2K 16

    While working on the machine, Sans receives a text message from an unsaved number. It first starts out on one slow night that quickly evolves into eagerly waiting for a message from this unknown person. Sans is cautious but he can't help but feel drawn to this one person - despite that he never had met them before.

    Mature
  • Back to the surface Bk. 2
    1.7K 59 10

    This is book 2 of the skelewolf series! If you haven't read book 1 (Opposites attract) I suggest you read it. You and you whole monster family is back on the surface. Everything is going well and you went back to school. With your bone friend and his bro of course. yOuR LIfE WilL CHAnGe (Y/n) And it does.

    Mature
  • ✔️Imperfect Two (Swapfell sans x reader) Book 1 (DISCONTINUED)
    75.4K 1.6K 58

    ||» Imperfect two «|| ""FATED TO M E E T"" ""DESTINED TO L E A V E"" »»» No one knows my story. No one has heard my story. And no one shall find out my story. ~ Y/N L/N •||=+=||• Prologue ~ She died. He died. They died. No one to hold on, she gripped her own life in her hands. Two either suicidal or accidental, the o...

    Completed