Smut one-shot for Undertale characters. Yep, this is happening.

End my suffering Stay away if you can't handle the smexy times

WARNING!!! This story WILL contain rape/noncon and gore, inhumane treatment of the reader, and NO ROMANCE until possibly very late in the book. I plan to update frequently but that may not happen. This is being written as a guilty pleasure type thing to make me feel a little better about some of my messed up fantasies. Please do not read this if you are not ok with any of the above situations in a FICTIONAL setting. When Toriel found you, you were unresponsive. She didn't know what to do, and therefore was forced to hand you over to the royal scientist in secret, hoping that he would heal you. Unfortunately, he had other plans. Cover art by anonymous reader

So, it just so happens that the core is going into meltdown and someone had the awesome idea of asking its creator to help. Small problem with that though... he apparently kind of doesn't exist anymore?! How to resolve this? Simple, send someone into the past, namely you, to go and ask them. With everyone's hopes and dreams resting on your shoulders, let's just keep our fingers crossed and hope you can convince the monsters not to kill you and persuade the one and only W.D. Gaster you're not a lunatic and get help. Surely it will go just smoothly, right? No problems at all. I mean, it's not like you're going to fall for a guy that will eventually disappear from existence, right? You must ENDURE!

I am completely enamored with this character right now. Finally, someone I can unleash my 'dad' kink on~ They are most likely not going to be canon to his character at all, but I'll try to keep some things straight. But I am sticking to the theory that Sans and Papyrus are his kids. Hope y'all like em! :3 Cover art isn't mine!

Under editing Every-night you dreamt of a strange man, the strange Dr W.D Gaster who you fell madly in love with. With each passing day you grew closer and closer, but everyone has secrets... Even the seemingly perfect Dr Gaster. (WARNING GORE, SWEARING AND LEMONS) Cover art by @Redwolf878

You had bought a new home only a couple weeks ago. You settled in nicely and you didn't mind the loneliness. Though... Your not as alone as you thought... The reason why you moved stayed a secret as it sounded stupid. A ghost. Not exactly as you would randomly feel hands touching you at random points and even whispers of a strange language. Apparently this ghost followed you to your new home. What happens when you get attached to the invisible figure? Who knows.... ;) Yes you fuck a 'ghost' in this. Hope you have fun! :3 x3

This is a rewrite of a story I already wrote on here. I have gotten better at writing since I made that book. This version also makes more sense to my book crazy Gaster x reader part 2.

You are just walking to school when you bump into a guy that seems to like you........a little to much. Read to see what happens next. this has swearing and abuse in it. you have been warned.

You, a human, have fallen down into the underground. After having exploring most of it, you have successfully made lots of friends and killed no one. While you want to go back home to your town above ground, all your friends that you had made you decided to stay, or for the moment at least. Very soon, you will end up meeting someone quite interesting, someone who just caught your attention. The man who speaks in hands, W. D. Gaster. WARNING! Undertale spoilers shall be had. Mainly for the neutral run and true pacifist run, probably. Though there may be a thing or two from the Genocide run, I'm not all too sure. P.S. Please don't kill me if I suck majorly at writing romance stuff, I haven't written anything like this before.