Undertail Stories

You've lived your life without ever knowing your parents. Despite that you dream big because you don't have much; aiming to become a famous singer and prove anyone who h...

Not for kids lmao

Howdy, this is a flowey X reader thing, I'll try to post often.

It's been a while since Horror's world could be considered even remotely kind. But a newcomer drops in, and reminds him that there's still sweetness to be found in life...

Plz give me suggestions of what to do next and if I don't upload for a while it's because I have important things like school homework and I'm probably thinking about wh...

I'm doing the 30 day OTP challenge This will be Error x Blueberry aka ErrorBerry

Frisk always had a crush on Sans ever since they had left the underground. After she turned eighteen, she fantasized him of fucking her.

This is like my other one shot story except with lemons/smut/sin/sex or whatever else you want to call it. It might/will include boy x boy, girl x girl, boy x girl, and...

It's almost the end of highschool for Killer, an 19 year old student at a human and monster school on the surface. Killer isn't ready to leave the highschool yet as he's...

Nagito trying to get his true love back. --------------------- My and my friend were at school when we wrote this.

" why dont you just take a swan dive off a building and hope that in your next life you get a quirk " was the greatest advice given to the quirkless boy izuku...

Just a drabble :P This story will include 18+ content, if you're comfortable reading that then move along, but if you are younger than thirteen and still have not had...

It's your first day and you had a black eye because of you dad. You where nerves for school because you where going to Underhigh. And you love sciance but what if that a...

This is all UnderTale characters expanding in multiple ways. Including: Ass, breast, belly, thighs, and maybe even all (And POSSIBLE cumflation) Some and maybe most will...

In this book I tell you what I think of any and every ship that I like, ships I've heard of and ones I haven't. I will also do one-shots, if I can think of one. Feel fre...

Yep, art not by me by the way, there will be inappropriate references in here

A contest between friends I'm sorry you had to witness this horrible story.

credit to the artist of the cover (I found it on google) ink Omorashi if you don't like Omorashi don't read you have been warned!

Heres a story were I ship UF papyrus x UT papyrus lets see how this goes (Nyeh~)I don't fucking know anymore heh

Kross or Criller! I honestly like the little ship with Killer and Cross. Sure they would never have feelings for each other but the tension! ... Okay, I'm just bored. I'...