Fontcest Papcest Sanscest  by Sebastians_Michaelis
AU Undertale One-Shots 2 by DJWinterWolf
AU Undertale One-Shots 2 by DJWinterWolf Fanfiction
Part 2 of AU Undertale One-Shots. I wright fluffy hurt/comfort oneshots. I do take request if I am able to do them. No lemons but there will be romace and small makeout...
Gaster One Shots 3 by BrownENH
Gaster One Shots 3 by Emily Skelewolf Fanfiction
THIRD TIME IS THE CHARM! [Highest ranking #161 in fanfic] NO IMAGES R MINE
Sans sleepover  (Ask/Dare) by DThepurplesoul
Sans sleepover (Ask/Dare) by DThepurplesoul Fanfiction
Classic Sans invites Dream, Cross, Geno, Reaper, Ink, Error, Blueberry, Fell, Sci, Gaster (G) sans, Nightmare, and Fresh for a sleepover. And are willing to take asks an...
Sans Aus x Reader Oneshots (Requests OPEN) by Livvie2005
Sans Aus x Reader Oneshots (Reques... by Livve Fanfiction
Cover by @magicath617 (if the link doesn't work, click or tap here instead: https://www.wattpad.com/user/magicath617) I will NOT be writing any lemons or smut. Nope. Thi...
Undertale Roleplay by UndertaleTrasher2004
Undertale Roleplay by UndertaleSinner XD Random
Just comment 'May I?' Along with who you wanna RP with. Then I'll do that. You know the drill...
☆Undertale AU x Reader [One Shot Book!]☆ by Abomination-1
☆Undertale AU x Reader [One Shot B... by Patatoe lieks to stand out Fanfiction
Yandere - Someone that acts innocent but often uses acts of violence to get their lover. Normally an Anime character. This is Undertale and Yandere. Enjoy your stay with...
✿ʀᴏʟᴇᴘʟᴀʏ✿ by LesBiHonest-
✿ʀᴏʟᴇᴘʟᴀʏ✿ by LesBiHonest- Random
sᴀɴsᴄᴇsᴛ ʀᴏʟᴇᴘʟᴀʏs! ʀᴇǫᴜᴇsᴛs ᴀʀᴇ ᴀʟᴏᴜᴅ! ɴᴏ sᴍᴜᴛ! ʜᴀᴠᴇ ғᴜɴ!
Undertale Roleplay! by Echo695
Undertale Roleplay! by ~Lucy~ Random
Ok, so I've read a lot of roleplay and even did it myself. So, now, without further ado, my roleplay book for ships!
I Started As A Joke {Sans X Hybrid Reader} by SwapfellSenpai
I Started As A Joke {Sans X Hybrid... by Animoo Fanfiction
Sans X Hybrid Reader You are a 16 year old girl, victim to the nasty and narcissistic comments of the humans around you. You only trusted one other human - your best fri...
My Soul Is Yours (AU Sans x Reader Oneshots) by Arrow_Point_
My Soul Is Yours (AU Sans x Reader... by Aimer Fanfiction
A remake of my old AU Sans x Reader Oneshots but more detailed and better. Requests open.
Obsession [GasterSans x Frisk] by Ink_Gamer
Obsession [GasterSans x Frisk] by ILoveScience Fanfiction
On the 18th birthday of the princess, she was once again be able to go outside. But in that special day of her's was the time she's going to meet a whole, new, cruel wor...
NAJ!Swapfell Sans X Psychic!Reader - The More You Hate, The More You Love by CurrentlyinDreamTale
NAJ!Swapfell Sans X Psychic!Reader... by CURRENT Fanfiction
♡Highest Ranking: #427 in Fanfiction♡ NAJ (Nerd and Jock) is an Undertale AU created by @blogthegreatrouge on Tumblr. "I hate you." "You're despicable.&qu...
Truyện tranh Undertale (Vietsub) by nhi261220040
Truyện tranh Undertale (Vietsub) by Vô Diện Fanfiction
Tiếp tục bên nick @nhi26122004 nhé <3
My Undertale RP Book by Lexi_of_freshtale
My Undertale RP Book by Freshtale_trash Random
RP any undertale ship from any Au! (literate rps) Picture used for cover is made by @brokendollhouse13
A New Universe (Female! Chara(s) x Male! Reader) by Im___A___Person
A New Universe (Female! Chara(s) x... by Person Fanfiction
Wow, ok, this is going to be interesting. Just a story about you x Chara(s) Disclaimer: any of the AU characters aren't mine
"Love Me Back" - Sans x Reader [UNDERTALE ONE-SHOTS] by NekoSushi
"Love Me Back" - Sans x Reader [UN... by • Atsuya • Fanfiction
(Contains Mature Content.) ➹ ➷➹ ➷ In this world, We call readers: "Cloud Walkers." ➹ ➷➹ ➷ © Toby Fox - Undertale Characters & everything he owns. ⏩ On-going, r...
Deadly Scandals Paperjam X Fresh by AMOTimePlayer
Deadly Scandals Paperjam X Fresh by Amber.M.Ortiz Fanfiction
I drew the book cover, and made the cover on the Wattpad cover app but the AU does not belong to me, nor does Undertale. Only the plot and OCs belong to me. Also chapter...
Undertale x reader ~requests open~ by Chaos-Prince
Undertale x reader ~requests open~ by Chaos-Prince Fanfiction
I've decided to just make this an Undertale/Undertale AU x reader just to make this easier(?) for me. will be adding my AUs as well, since I have a few ideas in mind. I'...
C•A•C•A•O (Art Book) by CaisIDK
C•A•C•A•O (Art Book) by IT'S NOT A FAZE MOM Random
Did you not read the title? Btw warning this should be really cringy.