~Sanscest Sin // Requests Open~

Reads 36,840
Votes 538
Parts 20
Time 1h 6m

Reads 36,840
Votes 538
Parts 20
Time 1h 6m

Mature

18 fanfic fanfiction gay love pictures sans sanscest sanscestsin sin undertale yaoi yeet

Full of sin and smut and Fluff here and there. Pretty much Underlust in a book. Kids under 14 have been warned. And da innocent beans.All Rights Reserved

18 fanfic fanfiction gay love pictures sans sanscest sanscestsin sin undertale yaoi yeet

Table of contents

20 parts

Content Guidelines

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~Sintale is a work in progress~ There were 3 young children that went out to explore the world. Seems like they went too far and fell down a deep hole leading them to the Underground. They decide to continue onwards with their adventure as they gradually learn about sin flowers. If you do a sin, they gradually grow on you. They cause brain damage, blood lose, and weakens your soul. Everyone human/monster has a flower that symbols them in the underground, being called by that flower name like a code name, nobody remembering their actual name except Sans ( Blue Rose ). Want to see what the children's adventure leads to? Read Sintale for more!

Living Tales [DISCONTINUED] by miikamiela

!!! This story will officially stop getting updated here, and ONLY on AO3 !!! I'm going to try and write one-shots/short stories for Undertale (AU's) Slow updates, ALWAYS GAY. SUPER GAY. YAOI, SLASH AND ALL THAT. If you don't like that, don't read! Adding warnings as I go... Warnings will be in chapters. Please tell me if I didn't add a warning where there should be one and I'll add it.

This is my first story so don't judge it to harshly. Spoiler's to the game undertale so read at your own risk. Warning sexual content,violence, bad language, and suicidal thoughts and or actions. You have been warned.

Errormare writing prompts (incomplete, finished) by Leffee

Another book to satisfy my need of Errormare, my need of fluff and touch starvation, but this time I found some fluff writing prompts on tumblr. (Cover belongs to whitek1t on tumblr) Also please don't leave any suggestive comments, there's a reason why this book doesn't have lemons (aka I'm sex repulsed).

Fell in a Bad Situation (A Fontcest Story) by Undertail_Vlayd

Underfell Papyrus has felt lustful lately and uses Clasic Sans in his 'Activities'... RAPE! What happens when Fell Paps brother walks in on the act? Let's hope we all stay tuned to find out!

Sans AU X Reader Lemon And Lime Stories by Anonymous_Sinner_TwT

🚫 REQUESTS PERMANENTLY CLOSED 🚫 Sans AU X Reader Lemon And Lime Stories Written By: Anonymous_Sinner_TwT Cover art and any other art in this book is not by me and all rights go to the original creators... Also it's exactly what it sounds like ( ͡° ͜ʖ ͡°). Enjoy a whole bunch o' Sans lemon fanfics ALL SINNERS WELCOME! When you are reading you may see this sign... ⚠️🍋 LEMON WARNING 🍋⚠️ No this doesn't mean "OwO Lemon tree" it means sin and if you no like sin then don't read... it's simple. Ok bye now go read because you wouldn't have looked at this book if you didn't want sin so...

Pretty much all smut... Yes...another one... This is just another frisk x sans Enjoy!!!

Art cover isn't ours! We'll be doing oneshots. We'll do anything but r@pe and things related. Me and my friend are working on this book together, so it might take a while to get some stories done! #6 in Nightberry on 2/16/25 #8 in Sanscest on 2/16/25

Sanscest Oneshots | Bored Lmao | Requests Open by Horror-Hungry-Boi

(Story cover by @ヨハ🧪 on twitter) ONESHOTS. Doesn't really need a description Rated Mature for Lemon, Lime, Cursing and other 13+/18+ things

Silently Sleeping (Underswap!Papyrus x Reader) by GamerQueen2002

Underswap!Papyrus x Reader And some Fresh!Sans x Reader -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- It isn't hard to slip into a dream. You're happy with what your mind makes up and you stick with it until you wake up. Nightmares are hard to sink into. Death, tears, bloodlust, screams of terror and agony. You eventually wake up crying and wondering why your head would come up with something so sadistic. You're not in a dream. You never were. It's always been a nightmare. Always. -_-_-_-_-_-_-_-_-_-_-_-_-_- "My heart fills so... empty." "Please don't do this, (Y/n)!" "I'm sorry I caused so much pain... but we both don't have to suffer anymore."

Sintale

~Sintale is a work in progress~ There were 3 young children that went out to explore the world. Seems like they went too far and fell down a deep hole leading them to the Underground. They decide to continue onwards with their adventure as they gradually learn about sin flowers. If you do a sin, they gradually grow on you. They cause brain damage, blood lose, and weakens your soul. Everyone human/monster has a flower that symbols them in the underground, being called by that flower name like a code name, nobody remembering their actual name except Sans ( Blue Rose ). Want to see what the children's adventure leads to? Read Sintale for more!

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