Underswappapyrus Stories

Chara is a young human who has decided to live in the Underground with her skeleton friends Papyrus and Sans. What will happen when she finds out that one of those skele...

After you ran away from home, you sneak into a manor which unbeknownst to you, was home to six skeletons. They agree to take you in for free, one one condition: You stay...

Ask the adorable blueberry muffin right here! Don't worry he won't bite! But Papyrus might, so prepare for that XD MWEH HEH HEH!! :D

!!WARNING!! Contains Honeymustard And may contain future 18+ content! Red finds himself in underswap, near dusting. Saved by a tall skeleton in an orange hoodie, Will h...

When Frisk wakes up and says 'hi' to the skeleton brothers, not focusing who is who but notices slight differences as they become more awake. Cover credit to: ttboa.devi...

You wake up in a familiar yet foreign place with no memory of how you got there, and are accused of murder! Can you prove that it wasn't you? Especially when you are cov...

He was broken and had very little hope that he could be anything else. He was ready for it all to end, for it all to stop and not restart. He was ready to die... But s...

Underfell Sans is once again finding himself fighting Frisk, and as usual loses and dusts. But this time he wakes up seconds later and blames it on a dream...Until he se...

because the two gay chaotic husbands get into all sorts of mischief. or angst. both? idk but it's probably going to be gay. absurdmageart on Tumblr

This is my first story on Wattpad. Warning: This story may/will include: violence, some cuss words When Dust takes Blueberry, Underswap Papyrus goes after them.

ooooo I ship this SOO COOL ENJOY

The Star Sanses decide to take some of their children out with them. Shine, Blueberry and Dream's child, is one of them. Shine is a little different than what you would...

"Why do you love me so much?" He shrugged and averted his eyes from her, not actually wanting to tell her "i......uh...don't really know, I j-just do"...

Moved from AO3 because of reasons! "You are the only maid (or worker in general) that serves for the Skeletal Household. It's a skele-ton of work, but you manage by...

What happens when a shortcut goes wrong and Frisk ends up in another universe? Will she be safe and more importantly will she get back home? Read and find out! (This st...

Undertale AU that contains the question, what if all of the known determination users were to be put in one and same universe. Firsk, Chara, Kris. Curious?, Check it out...

Like the others it a lemon hehehe the sins This is a request from my friend, Gemtheghost (Who is also on wattpad) P.s: I don't own error sans or underswap sans

what happens when Mike is sucked out of his au and thrown into another due to a malfunctioning machine?