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  • The Rogue Rebellion [Nightmare!Sans x Reader] [[SEQUEL TO FORBIDDEN]]
    2.8K 143 37

    Warrior Cats x Undertale Multiverse Crossover ~~~~~~~~ None of the clans have seen Ash or the other rogues in years. Peace has settled among the clans, apart from the common small border skirmish. Nightmare and Y/N are expecting a daughter to arrive any minute. But there's always a calm before the storm. The eye of a...

    Completed   Mature
  • Forbidden [Nightmare!Sans x Reader]
    7.5K 295 52

    Warrior Cats x Undertale Multiverse Crossover ~~~~~~~~ Since the Multiverse was created, the Creators have been fighting over the AUs non-stop. It was a horrible, bloody war that lasted centuries. Many were killed and many were cast away as outsiders. One day, the Creators met in an AU called Dreamtale, and after anot...

    Completed   Mature
  • I Want To Forget (Killer Sans x Reader)
    237K 8.4K 34

    Want to talk about falling into the wrong place at the wrong time? Y/N definitely scored big time on that one. One moment she's falling, the next she finds herself trapped underground with a monster that wiped out his own kind. He's a cold-blooded killer that never shows any emotion. Though, as time passes, she finds...

    Completed  
  • (Underfell sans x reader (female)) UNDERCOVER
    494K 17.3K 64

    You're a human that has fallen into Mt. Ebott on the year where all humans dress as monsters...Halloween. So how will the monsters know if you're a human or not?

    Completed  
  • Chat Logs | Sans x Reader
    550K 27.3K 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
  • An Oath of Mercy || UnderFell Sans x Reader
    21.8K 836 14

    One clumsy moment and a broken leg are all it takes to leave you at the mercy of the very edgy and very hostile monsters of the underground. Thanks to your knowledge as a doctor (and oath to do no harm), you're able to convince the Great and Terrible Papyrus to keep you alive. But how are you going to find your way ba...

    Completed  
  • Tall Tales - An Ink Sans x Reader Story
    136K 3.7K 26

    Orphaned. Left alone, the definition of it. Like a fantasy, or a dream, saved by a being willing enough to take you under their wing and keep you safe. With secrets to be shared, stories to be told, the months pass by as you trade your lives. Given warmth, Given care, Given love. But so insignificant is your life co...

    Completed  
  • The King's Queen (Nightmare Sans x Reader)
    397K 14.6K 40

    PLEASE READ BEFORE GETTING INTO THE STORY Description: Your name is (Y/n) and you are originally from an au called Dreamtale! Your life hadn't been the easiest however, but you were quick to always move forward despite this... Before Nightmare had become corrupted, you were his best friend and lover. You kept him fro...

    Completed   Mature
  • Stone Cold Pacifist (Horror Sans x Reader)
    251K 11.5K 40

    PLEASE READ BEFORE GETTING INTO THE STORY. Your name is (Y/n), and you play the role of an unusual pacifist. In the story of Horrortale, your unique soul allows you to see WD Gaster who no longer holds a powerful connection with the underground due to the inactive core. After your parents are killed, Gaster makes a de...

    Completed   Mature
  • A Shark?! Shark Horror sans x Reader
    4.6K 148 15

    Y/n's dad owns a research station in the middle of the ocean to research about all types of sea creatures but what happens when They come face to face with a great white shark. And little do they know that the shark is a skeleton.

  • 𝐎𝐔𝐑 𝐎𝐍𝐄 𝐒𝐀𝐒𝐒𝐘 𝐒𝐄𝐑𝐕𝐀𝐍𝐓 ␈ ˢᵃⁿˢᵉˢ ˣ ʳᵉᵃᵈᵉʳ
    263K 8.8K 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  
  • Error Sans X Reader
    436K 10.1K 38

    This is for my readers I hope ya enjoy this. See ya on the other side Buddy.

    Completed  
  • My Little Mutt (FS!Papyrus x Female!Reader)
    90K 4.2K 44

    Hi guys! First of all I should mention that the story pic isn't mine and of course Fellswap belongs to its original creator. A young hiker, Y/N gets lost and accidentally falls into a pit while stumbling in the dark. She wakes up to find herself in a whole new world that was never spoken of before except in children'...

    Completed  
  • Just SING | Sans X Reader
    262K 7.5K 36

    --Long ago, two races ruled over Earth-- --HUMANS and MONSTERS-- --One day, war broke out between the two races-- --After a long battle, the Humans were victorious-- --They sealed the monsters underground with a magic spell-- --Many years later...-- --MT. EBBOT, 201X-- --Legends say that those who climb the mountain n...

    Completed  
  • My Villain [Dust Sans x Reader]
    78.5K 2.1K 52

    A young woman, left alone after her family sadly passed in a car accident, suffers with PTSD and Anthropophobia (Fear of people.) Her only happiness in this world is the view of the stars from Mount Ebott. But one day, Y/N falls into a large abyss located on top of the mountain. There, she enters the Underground. The...

    Completed  
  • Your Odd Neighbor (Horror Sans x Reader)
    98.9K 3.8K 19

    Y/N's best friend Blueberry (also known as Underswap Sans) invited them to move into the shared/connected apartment next door. They could hang out all the time! It's an awesome opportunity and the chances of it happening again are slim. Being closer to friends means a lot, especially in this tough life on the surface...

    Completed  
  • My Two Masters (UF!Papyrus x Skeleton!Reader)
    89.9K 3.9K 32

    Y/N's been traded and sold her entire life. She's learned firsthand that if you don't obey your master, you get hurt. If you force yourself to listen, you live another day. Monster trafficking is a popular thing down in this chaotic place. That's all she's ever known. Obey. Get a new master. Repeat. ... So why are th...

    Completed