Underlust Stories

Yandere Horror x Lust :3 Slow Updates Cursing Perhaps Lemon?🤔 probably not though 1st in #horrorxlust on 10/6/23 2nd in #lustsans on 2/21/23 OMG- THANK YOU GUYS SM...

In these lands they are governed and divided into 4 kingdoms. Sword Hearts Clover Diamond Each kingdom is ruled by a King, Queen, and Jack (The latter serves as a counse...

MaleReader X Female Frisk and Chara *Warning This book contains provocative and is not suitable for Readers that doesn't have the word "Teen" in their age or...

Dream had spent most of his time being pushed around by Ink and was expected to be the solution to everyone's emotional problems. The only thing he did for himself was t...

Sans and Papyrus were your best friends until randomly they just cut off all contact with you. This went for everyone else in your life so it didn't really hurt that muc...

Yes , a sequel. I can't just leave everybody hanging when my oneshots were actually getting a fairly awesome amount of reads! Plus, I have even MORE ideas! I can't wait...

WARNING! (This story contains 18+ graphic parts(lemon in other words)and Self harm please don't read if your not allowed to or if you don't like any of this) Thank you (...

Yes, here it is the fifth book! I went ahead and decided to make the fifth one now, new book, new ideas! Anyway, request are open, but give me some time to catch up wit...

After All AU's of Frisk's death, all of the sans have been depressed losing their love/friend of their live. Until.........(Y/N) fell to the underground. As all of the s...

(Y/N) is a 24-year-old girl that just finished college. She learnt everything the hard way since she lost her parents at a young age. She wasn't interested in love and f...

Lust has been called names and cast out all his life for the way he is, then he meets (y/n), the only human that's been kind to him.

WARNING! There is sex in this story and is very graphic. Not for anyone under 18! This story contains abuse, rape, gangbang, and not so light topics. Read at your own ri...

Your boyfriend was just caught cheating on you. You got mad at him for buying a prostitute and fucking her, so he threw you out. To compensate with this loss of the guy...

Your mother was always busy, working hard to keep a roof over your head. She worked day shifts so she was never able to take care of you, so she had to hire babysitters...

It's been a few years since the monsters had been freed from the underground. You can't say you hated it, though. Sans had been one of the first monsters you befriended...

All the monsters have been released from the underground but what happens when creatures full of lust meet some smexy humans Note: was originally inspired by written lo...

Error acaba em Undelust e sem querer se envolve com Lust Sans.O que será que Nightmare irá fazer para salvar o "amigo"

I just thought this would be funny to write. its where reaper sans gets traped in underlust for a week. This is going to have language and almost sex scenes. So if you a...

The title says it all. Warning: This contains vore! If you don't like vore and start to complain, I will make you regret ever trying to complain about MY book. There are...

(Y/n) (L/n) spent her whole life searching for a clean fanfiction on Underlust Sans, even came down to making some herself, but when she actually mets the horn dog herse...