What Will I Do With My Heart?

Gaster and Grillby are both unsure of what they would do if they lost each other, but they are soon to find out.

Ask Grillster

ASK ANY QUESTIONS to our favourite flame and scientist, goop, skelly dude.

Gaster x Grillby (Grillster)

The art in this story isn't mine (if i feature my own art i'll say low chance i will seeing I can't draw grillbys head) This is story happens before Gaster falls, but they are in the undergrounds and also after gaster falls A GRILLSTER ONE SHOT BOOK NOW REQUESTS OPEN All characters and game belong to TobyFox.

Why is Love So Hard?

Gaster is the head Royal Scientist, bearing with it a lot of responsibility. But with his workaholic personality and refusal to sleep, this makes for a lot of injuries. Grillby is working hard, doing almost any job he can find so he can save up to build and own his own restaurant, his dream job. So of course this lea...

Burning love(gaster x grillby)

Every day, gaster would wake up, prepare for work at the core, head off, and get back home... but between the getting home and leaving work... he'd stop in to grillby's bar... he was the one customer who wasn't just there for alcohol... grillby was one of the few people who made his day... whether he had nearly died...

Blaze of Night

The sleepy town of Snowdin has some new arrivals: a little family of skeletons. The father, one doctor Gaster, seems to take a keen interest in Grillby. With how alluring the mysterious newcomer is, is it really any surprise Grillby falls for him hard and fast? Too bad about the sickness going around though. And what...

Finding Your Parts (Grillby X Gaster FanFic)

I couldn't help but remember, the memory striking my whole being. Something in my life made me forget. He was my friend. He then died a painful death, falling into the CORE. How can someone tell me that there's still hope that he's alive? It explains the dreams, the voices... and even the boney hands that held my face...

It's Your Birthday

Excluding the most important holidays, there was only one other day a year that Grillby's was closed. If anyone actually looked inside, they would see Grillby sitting alone at the bar, his flames dim and with a picture pressed against his chest, reminiscing about a bittersweet past. No one would know why, but that was...

ask gaster x Reader fanfic

you can and Dears us both just STAR ASKING AND DEARING US OR SAMETHING

I am poems

Many characters have stories. Here they are in "I am" poem form.

Broken Bones | Reader X Gaster

This is an X Reader story I hope you enjoy! Was it true love or just a lap experiment gone wrong? W.D Gaster (The head scientist for the RG) needs a new assistant after the last one "went missing" You get the job and start to catch him looking at you over so often how come?

Gaster Gang Cover for songs ft. Inkling kids

This story will be about the gaster gang singing some songs along with some of the inkling kids from my stories.

From War to Science {UNDERTALE}

Is it still considered a backstory if the protagonist doesn't exist? Companion story to "Reset".

Skele-Frisk (A Undertale story after the barrier breaks)By: chibibon (Finished)

(Pics in this story does not belong to me) (Frisk is a girl in this story) After a long journey, Frisk saves all monsters, her friends, and as well Asriel. frisk becomes ill, and all of a sudden her soul begins to shatter with no trace of cure for them, as everyone begins to worry, frisk dies. The skeleton brothers...

The Soul Of Chaos(An Undertale OC Fanfic)

W.D.Gaster,the previous Royal Scientist,has been traped in the void all this time.However when he learns of Frisk and the destruction of the barrier,he knows he needs to help his fellow monsters survive mankind's judgement.But how? However,despite all odds,Gaster obtains something that may allow him to help save bot...

Gaster x Reader: Trusting The Man Who Speaks In Hands

Your walking through waterfall when a door you've never seen before, materializes before your eyes. When you open the door you see him...

W. D. Gaster x Reader Oneshots (Requests Closed)

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...

Prisoner of War (W.D. Gaster X Reader)

You are one of the few humans with magic during a war between you and the monsters. (Pre Undertale) Instead of killed you wind up captured by the monsters where you meet a scientist and doctor W.D. Gaster. Cover... I drew it myself this time

'Teach me to love again' Gaster x Reader

*This book will take place during the comic by deadpool4ever at Tumblr.* I would suggest the dub by two all nighters on YouTube. :3 I'll put it up there. You are papyrus' teacher at the snowdin school in the underground. and yes you are a human. but why would they keep you alive if you are human. the thing was, yo...

Chipper Fellow (W.D. Gaster X Reader)

chip·per ˈCHipər/ adjective/informal cheerful and lively _____________________ Not everyone would've described this skeleton man as 'chipper' at first glance. But [Y/N], someone with first-hand experience on how he acts, would definitely describe him as such.

Gaster's Cook Book (Volume 1)

Have you ever wanted to bake pastries and have people say "Mmmm, these are delicious!"? Well, that isn't guaranteed, but this cook book gives you the finest culinary recipes, created by Gaster himself! Try out some of these and tell me if it worked out by sending an email to gasterscookingclub@gmail.com Volume 1. (I a...

My Forgotten Father (Gaster's Daughter) (Discontinued For Now...)

Aster, aka Ash, was searching for her father for years. Jack and Zack were the school bullies, and the head teacher's twin sons, little did they know, they were bullying the most powerful entity to exist, powerful enough to do 2 stuff that changes her life and humans opinion on monsters.

How To Be A Dad (Undertale Fanfic)

(Short Story) Gaster have made an experiment and made a very amazing experiment. Two lives, in the hands of Gaster. The problem is . . . He didn't know how to take care of kids like them, he's going to need some help to be the two skeletons' 'Dad'

Naj! Gaster x shapeshifter! goddess! reader

Edit: please read this book, you might like it.(^_-) For girls only You,(Y/N), is the Godess of Darkness.One day, God of Light asked you to be an AU's protector, and you agreed. What will happen? this is my first story, I am sorry for making Gaster OOC .Maybe wrong in grammar. The art I put in the book belongs to its...

Who Am I?

So this is what it's like to live in a world where I never existed. Entered in the 2017 Wattys

The beauty and the beast. [Gaster X Reader]

...

the giant skeletons

you walked in the woods and you met sans and gaster in the woods.

W.D. Gaster X Reader ! WIP

Love W.D. Gaster ? Then u are ready for a lovely adventure to begin my friend ! Please read on !

This is what you came for (RWBY x Undertale Reader)

Your name is (Y/N) but you go by Asterisk and you are traveling the multiverse trying to find the one who ruined your world and you think you have a lead and you follow it to a strange place called Remnant were you discover a new threat you will face. (This is my first story so I do not expect to do good on this and I...

The void in my heart (Gaster X Reader)

You're a human girl, living on the surface with Frisk, who is your younger sibling. You one day find two children, who's been chased away from neighborhood to neighborhood. And with you're kind soul, you couldn't leave them to live in the streets. You take them in, and meet their father. But will one day, lose them, b...