Undertale (AU) SIN fanfics~! - Loveagoodlemon - Wattpad

Story cover for Undertale (AU) SIN fanfics~! by ambers_xxx

Undertale (AU) SIN fanfics~!

Reads 2,744
Votes 25
Parts 2
Time 11m

Reads 2,744
Votes 25
Parts 2
Time 11m

Mature

deltarune dreamsans dreamtale dustsans error errorsans fanfic gaster ink inksans lemon nightmaresans sans sin smutwarning underfell underlust underswap undertail undertale undertaleaus

/:/WARNING/:/
NSFW CONTENT! 
I WILL BE POSTING SIN PICTURES OF THE FOLLOWING:
- SANSCEST
-PAPCEST
-FONTCEST

I will do suggestions and x readers as well as sans x sans, sans x papy and papy x papy.

IF THAT IS NOT YOUR CUP OF TEA THEN DO NOT READ!!!
BUT IF IT IS... Happy sinning you dirty fuckers~All Rights Reserved

deltarune dreamsans dreamtale dustsans error errorsans fanfic gaster ink inksans lemon nightmaresans sans sin smutwarning underfell underlust underswap undertail undertale undertaleaus

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2 parts

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Ask And Dare Sans And The Other AU Sans (DISCONTINUED) by SimplyAngelie

NEW DESCRIPTION: This book is discontinued along with Behind the camera. A NEW One would be out soon. Read the latest update for more information! OLD DESCRIPTION: So, I managed to finally gain enough courage to write my first book so ya hope you enjoy! (Might have some grammar errors etc in this but I'm gonna try to avoid that) You can ask: Me Sans (UT)/Classic Red Blue Dust Ink Error Gas Pacifist Sci Outer Geno Reaper G Lust (NEW)

[DISCONTINUED] Undertale AUs x reader by SENIZISE

Just some Undertale and AUs x reader for funsies <3 Happy 2025!!

utau oneshots by pachinkovv

reposts of stories i wrote for ut au because i found them by accident in my docs and some of them slap im ngl

Read It In a Book - Dream/Passive Nightmare by Wipmoy

Nightmare reads a book and gets some ideas. Dream is interested. Lemon/Sin/NSFW/18+ whatever this site wants to call it.

$Lust x Horror {Sanscest} (Plus Fontcest, Sanscest, & Pappycest Oneshots) by Mavi_Sumukler$

HELLO FELLOW SINNERS~ this is a smutty/fluffy fanfiction based of plots I have either made or was randomly told but anyways be sure to request thats what keeps this book going and also keep in mind there will be slow updates sorry 😅 Enjoy~ ~Mavi Sümüklər

~Undertale Oneshots Gone Lemon~ by GameBlasterNeko

Let's write some lemons together, yes? Anything from fontcest to x reader's you got it. The suggestion box is currently closed. Again sorry for the slow updates and thanks for being patient with me! ❤

€Top Star Sanses, Bottom Bad Sanses€ by HighCherryloljune

Welcome to this story! ⚠️NO REQUESTS⚠️ But otherwise enjoy:)

Strongest Sans AU's - tierlist by Bigman0000

Just something I wanted to do.

Error's book of angst and fluff (finished) by Leffee

Please for goodness heavens, don't comment if you're really young, I had to delete enough of cringy comments. Also please don't leave any suggestive comments, there's a reason why this book doesn't have lemons (aka I'm sex repulsed). Just some one-shots about Error!Sans. Mostly fluff and some angst. Basically me throwing here whatever comes to my mind. Error is short, not because I said so, but because it's canon. In some chapters ships are directly shown, while in others they're not. If that's the case then they're probably friends, but there's nothing stopping you from seeing them as a ship. (Cover belongs to yufy01 on tumblr)

AU Sans X Reader Long OneShots by mylittlepinkamena222

Just Sans X Reader No Lemon Cover by my homeslice tkdgirl222 I don't own any of the characters in these story Don't kinkshame me I know your here for the same reason I wrote these >:) Also these are for girls but you can change the pronouns and the girly stuff to guy stuff I don't care. @tkdgirl222 edits and helps write all of the stories.

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Slide 1 of 10

Ask And Dare Sans And The Other AU Sans (DISCONTINUED) cover

[DISCONTINUED] Undertale AUs x reader cover

utau oneshots cover

Read It In a Book - Dream/Passive Nightmare cover

Lust x Horror {Sanscest} (Plus Fontcest, Sanscest, & Pappycest Oneshots) cover

~Undertale Oneshots Gone Lemon~ cover

€Top Star Sanses, Bottom Bad Sanses€ cover

Strongest Sans AU's - tierlist cover

Error's book of angst and fluff (finished) cover

AU Sans X Reader Long OneShots cover

Ask And Dare Sans And The Other AU Sans (DISCONTINUED)

NEW DESCRIPTION: This book is discontinued along with Behind the camera. A NEW One would be out soon. Read the latest update for more information! OLD DESCRIPTION: So, I managed to finally gain enough courage to write my first book so ya hope you enjoy! (Might have some grammar errors etc in this but I'm gonna try to avoid that) You can ask: Me Sans (UT)/Classic Red Blue Dust Ink Error Gas Pacifist Sci Outer Geno Reaper G Lust (NEW)