rorkitten

You have lived in the underground for 4 months now, and had befriended the most adorable cinnamon roll ever, Sans. However, you couldn't help but to gain feelings for his brother, Papyrus, even if Papyrus pretty much hated you. Could you change his mind? Get him to fall in love with you? There was only one way to find out.Reader's gender is not specified!Also Papyrus doesn't smoke in this story, sorry if you wanted that!Credit to Dizplicity for the artwork! Please check them out, they're amazing!http://dizplicity.deviantart.com/…

ZoneRobotnik

After living a lonely life in a tower for eighteen years, Chrysanthos, a man born with magical, healing hair, finally leaves his home and sees the world.…

TheGrinningKitten

(I DO NOT WRITE ABOUT UNDERTALE ANYMORE SO PLEASE DON'T REQUEST ON MY CHAPTERS) (AND FOR THE LOVE OF GOD STOP COMMENTING ABOUT MY GRAMMAR, I AM SWEDISH AND I HAD A HARD TIME LEARNING THE ENGLISH GRAMMAR. I'M MUCH BETTER AT ENGLISH NOW)This is my oneshots of UnderTale. It invloes AU'S to! Background picture by Casper-Cat on Tumblr, editing by me, and editing program is called covercreator.net. Mostly X reader…

smolbean108

"You can choke, so don't choke."This is what happens when I'm left alone and bored.What? I was bored! Did you really expect this to be good?I do NOT own this cover!!!…

LilyRook

From the title, you might think I'm transgender, but that's not the case at all. I didn't choose this, nor did I want it.One day, I woke up, and my mind was in a girl's body. To make matters worse, that girl's mind inhabited my body! As much as I hoped it was a dream, I had no such luck. I was stuck as a girl for the rest of my life.But, why? And what do I do now? I don't know anything about being a girl! Can I really live like this?!…

paranoidvoidart

well this is my first x reader book hope you guys like it i accept request…

Author-Dayo

this is a love story between swap sans and the reader, the reader falls runs threw MT.Ebott trying to escape her twisted guardians when she is shot into a massive hole. Lost and hurt in an unknown place she is saved by a kind man who takes her in and treats her like family.Obtaining powers and learning about herself in the underground she uses them for good and helps get everyone out.Determined to help the people she Loves and holding onto her Hope she fights to survive and free everyone.this is my 1st Undertale fanfic and I wanted to start with underswap~ (if I get some things mixed up I'm sorry)…

CozzyTuxKitty

[Underswap Papyrus x reader]You have a secret. You are the last of your kind, shapeshifter / Human hybrid. The very culmination of your being constantly pleads for you to be honest about who you are, but your kinds law prevents you from doing so. Will you be honest and open about your powers with your new friends, or will you continue to lie and hide in the dark? (Yes the title is a pun, if you aren't aware bonafide means honest/ trustworthy, yes the title contradicts itself it's supposed to show the struggle between logic and emotion.)…

Missfanfic16

This is my first time doing a gender swap story and I hope you guys like it.…

ThatAkutagawaKinnie

No art is mine!IT'S BACK…

Kim__chan

Error Sans in Underswap comic. "The comic doesn't belong to me"…

MorningSweets

**PLEASE NOTE**-Cover art does not belong to me, I will only take credit for the stories, I do not take credit for characters.-I will not do any lemons -This is my first book-I try to make this gender neutral but I may accidently make it mostly female in some chapters.Ranks: #1 in #sanses 2/18/2021…

JimmySMASH4daWIN

Papyrus finds himself curious about the machine Sans has behind their house. When he accidentally activates it, he ends up sending himself to the world of Underfell. Meanwhile, Underfell Papyrus is sent to Underswap and Underswap Papyrus finds himself in Undertale. Now they must find a way to swap back to their own universes.…

Tr33Hollows

An au sanses x MONSTER reader x au papyruses? Papyri?A fanfiction, it is not self-indulgent. So if your just lookin for some fanfiction to put yourself in, here it is. :)…

Ally_Sato

Want to hear my crazy stories about my OTP? This is a book filled with it. I present to you my one-shots of Sans x Frisk!…

nezukocharming

A butterfly boy who was inlove with a depressed emotionless girl ......Read to find out!!!!Warning (Cringe)…

StineSkar

'Book 1'This is a genderbent book. Most of the characters are swapped to the opposite gender and some are the same gender. The plot will be the same, but it's genderswapped.Enjoy!…

Glitch_girl17

The title says it all. Sorry this is my first book so it's probably a piece of crap.Will contain mature content. Such as, swearing, abuse, general violence.…

StineSkar

Book 1'Season 4 & 5'This is a fem!Castiel story. It will follow the plot except that Castiel is a girl. So it's basically a genderswap story about Castiel. Enjoy!…

SwapStories81

Jack receives a mysterious parcel in the post, and shortly finds out it is a body swap device. All he has to do is point it at two people and they switch bodies, thinking that has always been their body. Follow his journey.…