Fellswap Stories

What if someone from our world died knowing a lot from the undertale and their multiverse/underverse? What if that person also knew about the balance and didn't creat to...

What if..someone from our world was reborn as fellswap sans? But an accident when he was young leads to becoming blind for a long time and papyrus feels guilty about not...

You are a introvert who loves undertale and multiverse and loves to play video games and listin to music. What will happen if one day you meet the skele-bros of differ...

Geno is a lonely thief, resident of a small sea village. His past is covered in darkness. Somehow he can't recall who he was or his parents. He only had his 2 younger br...

Having little to no memories on what happens, you wake up to find two skeleton brothers who look awfully similar to yours. Confused and slightly disoriented, you later d...

What if two brothers somehow end up in their own story as the sans and papyrus that they made? They called the story starfell, mostly because everyone in the story is li...

What if someone from our world became the multiverse? Well everything is not likely to stay the same at all.. (Things will be different even possible personalities or a...

(Got ranked #607 in fanfiction) This is about the cherryberry ship. Red is just standing around one day whenever Blue randomly pops out nowhere in to his life and won't...

Who thought that one day someone would break into your house and slice your neck in your sleep? Well, that was what happened, right before you were integrated into a shi...

Just some Sans au zodiac signs.

(DISCLAIMER: THIS IS AN UNDERTALE AU) Allow me to describe this in the simplest way I can. There is a fanfic-like covering, but with a much darker, twisted undertone. S...

Alex falls as the 8th child. Will he be okay? Or will he die to the monsters? **************************

You got stuck in another persons body. But their ghost is with you! You were told to go to the new highschool. You met skeletons! Then bla bla bla bla bla just read...

You can make a request for the one shots stories I'll probably make more parts but I'll also have other characters as the main characters in different parts. Like this f...

Y/N, a 20-year-old ((Insert gender)) in the city below MT. Ebott, who gets fired the day they were going on MT. Ebott and they didn't know going up this mountain would c...

This is just some stuff I came up with at night time. By the way all of the submissive are females because I find it harder to write them as males. Don't know why.

There are not enough x male readers. There are not enough, if any, fellswap x readers. So I have created this is help fill the gap. Please stop reading this, I hate bein...

You'd just been fired from your job, but as luck would have it there's a maid position in a house fulls of Sans-es!!! Oh wait, no there isn't... But there is a position...

One-shots with your favorite Skeleton, human, goat, weed, robot, lizard, fish, whatever!! This is my first One-shot book on Wattpad....so uh,...yeah :P I am Taking reque...

headcannons for male and nonbinary readers!