Underfell
46 stories
UF!Sans X Reader (Finished) by _The_Creator_
_The_Creator_
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Unlike other stories, monsters and humans have already joined. Nothing was ever easy for you AT ALL. Your mom died when you were 6, and ever since then, your dad was.... different. Your a 17 year old girl, and you ran away when you were 15. You decided you couldn't take the pain. Hope you enjoy my story, and sorry if I misspell some words. Autocorrect never works correctly.
Broken Bones - Underfell Papyrus X Reader by InkySplash
InkySplash
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Y/N, a girl who is bullied, accidentally falls down a mysterious hole, spooked by an unknown force. Meanwhile, she meets a timid flower, who leads her through the dark underground. Brave and tough, she expects herself to survive the odd challenges of the underground; but how far will her courage bring her? Will she ever get home? Will a certain skeleton in boots make her want to stay? Spoilers for just Undertale in general. There will be some (eventual) fluff, just a warning (づ⌣ω⌣)づ I do NOT own any content besides the story. All characters and images belong to the original artists and creators. Thank you.
Can I take you to Dinner? Mafi-fell!Sans x Reader.  [COMPLETED] by MissHoll-E-Socks
MissHoll-E-Socks
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"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-breathing lap of one of the most fearsome dons in the city. Escape from him- let alone the King's Service that now hunts her down? I don't think so. **SMUT WARNING TO ALL THE UNDERAGE POTATO PATCH CHILDREN!!** - TRANSLATIONS WELCOME, JUST ASK MY PERMISSION FIRST - #1 in: sansxreader. 10th of May.
Goodnight, Kiddo... (Adopted by Sans! Reader Fanfic) by TheShortSensei
TheShortSensei
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You are an orphan, abandoned by your parents at birth. You've lived between countless foster families and a dreaded girl's home for as long as you can remember, because nobody chose to adopt you. Now, you are fifteen years old, and you decide to run away. Monsters have been living on the surface come four years now. What could become of this new adventure? Heyyyyyy! TheShortSensei here! I strongly suggest reading my former Undertale x reader book, When Spaghetti is your Life, before looking at this one. This book is a continuation of that one, so there may be spoilers if this one is read first! I will probably be using female-based pronouns, but I don't want it to be so gender based. Have fun, guys! Thank you for choosing to read this trash. Please comment and tell me what you think! P.S. If you're still reading, you get an invisible gold star sticker from yours truly. Well, what are you waiting for? I already gave you that sticker, didn't I??
Mafiatale Sans x Reader by rainbowgeode
rainbowgeode
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You are a 16 year old girl who has lost your parents and you meet this very gentalemish man, or monster. NO LEMONS I'm 11 NO LEMONS!!!!!!!!!
Undertale AU Sibling Scenarios by UndertaleKyannaKitty
UndertaleKyannaKitty
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This will be similar to Undertale AU Oneshots only: They're your siblings! Yep, cute, edgy, or anything else! Feel free to request!(Requests are closed at the moment) No lemons, cause I don't do dat crap.
sans x suicidal reader *COMPLETED* by qauckity
qauckity
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tw. for suicid this gets deep
Underfell Papyrus x Reader- MERCY by Fontcest-Sinner
Fontcest-Sinner
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A book that proves anyone, no matter what they've been through, can show mercy. A book where you fall in love with the meanest guy in the Underground, the Great and Terrible Papyrus.
Flower you today, sweetheart? (Flowerfell Sans X Reader) by TheAbandonedQuiche
TheAbandonedQuiche
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All the world, just hated kind people... they threated them as nothing and put them aside. That even happened in the underworld... They saw them as a sickness, what they don't know is that sicknesses spread... (Cover made by me :3)
My Little Mutt (FS!Papyrus x Female!Reader) by OreoDaSkeleton
OreoDaSkeleton
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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's stories. That's when she stumbles upon Barb (aka Mutt) and makes her first friend in the underground! But other monsters that live here aren't so welcoming.