Subject 108 (Gaster x Reader)
_Bobundercover__
  • Reads 37,522
  • Votes 1,523
  • Parts 46
  • Time 3h 32m
  • Reads 37,522
  • Votes 1,523
  • Parts 46
  • Time 3h 32m
_Bobundercover__
Ongoing, First published Apr 03, 2017
Mature
darkexperimentfanfictiongastergasterxreaderhappyfamilylemonlovelustpapyrusprisonromanceromancefanfictionsanstrueloveundertaleundertaleauundynewdgasterxreader
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
All Rights Reserved
darkexperimentfanfictiongastergasterxreaderhappyfamilylemonlovelustpapyrusprisonromanceromancefanfictionsanstrueloveundertaleundertaleauundynewdgasterxreader
Table of contents

46 parts

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W. D. Gaster - An Undertale Story by RandomWriter1987
35 parts Complete
It all started when W. D. Gaster became the Royal Scientist of the Underground. Many monsters knew him, some even followed him. But one day, he injected himself with DETERMINATION. It caused something bad to happen. But it all took a turn for the worst when he fell into his creation. When he fell into the CORE. When he found out the truth. When he drifted in the darkness. Forever. Undertale Characters and Undertale by Toby Fox Cover Art by me.
Should we be together? (Gaster x Alice OC) by Inugami_sama
12 parts Complete Mature
have a dream about Gaster and my OC. It's would be a short story. ______________________ Long ago, there was two species that rule the world. Monsters and humans. One day, the war broke of between them. The war last for century. When the humans thought of winning the war, a unexpect twist would change both the respective species. I DO NOT OWN UNDERTALE AND HIS CHARACTER!! ONLY MY OC IS MINE!
× [Sickness] × || Undertale Fanstory || The Gasters/Skeleton Family by Nanaz_Nazmaki
8 parts Complete
One day, Sans fell sick. His sickness came out of nowhere and it cannot be cured no matter how many medicines Gaster gave him. Because of the sickness, Sans stayed still on the bed, just laying down or sitting on it under the blanket. The sickness can be seen from his face, half of his white skull was a little bit darker than the rest. Gaster and Papyrus had no idea what kind of illness Sans has, but they decided to take care of him no matter what, hoping that the sickness will soon gone either because of the medicines Gaster gave him, or disappears itself. But alas, The sickness gotten worse... -------- UNDERTALE (c) Toby Fox --------- This have nothing to do with Undertale's canon characters or story. This is just a fan story I made because the idea stuck in my head for a few while and I'd like to share it with all of you. So, enjoy!
Origin Of The Bros (Fontcest) by BubblyShip
8 parts Complete
(Toby Fox owns UnderTale, the cover is my own art, and I'm trying out unusual ships and Fontcest is the next in line following Sansdyne. Why not?) Papyrus used to have trouble making friends, so his Dad decided to new addition to the family would be a great way to make Papyrus a perfect brother! Or, if things spiral out of control, a perfect boyfriend. Gaster really should have considered making Sans' personality not fit so perfectly with Papyrus' before he created him.
The half breed and comic skeleton (Sans X Fem!reader) by FormSans96
24 parts Complete Mature
This is a rewritten story of mine, I have changed the story to a X reader as well. I am a half breed. I am half human and half monster. I believed no one would ever love me like normal people would for each other. That was until I met this one skeleton, who has his own secrets. I can only hope.
W. D. Gaster x Reader by _MTTBrand_
41 parts Complete Mature
A collection of one shots between you and the man who speaks in hands. Some will be long, some will be short, some will be happy, some will be angsty, some will be fluffy, some will be smutty. I will write for certain AU's, but don't be offended if I ask for an explanation of the AU you request, I don't know them all. I take requests.
The Faults in Our Souls ~ Gaster x Reader (Under editing) by _T3chn0_
28 parts Complete
"Do you not want to go back home? To the surface?" °°°°°°°°°°°°°°°° "No." °°°°°°°°°°°°°°°° "Why?" °°°°°°°°°°°°°°°° "Because my home is right here, sitting next to me." _______________________ You were used to the unfortunates of life. Everyone had them, it was normal, but life decided to take a lemon, freeze it, then throw it at your face. But, it wasn't like it was THAT bad... Until you fell into the Underground that'd been sealed for over a hundred years, of course. Friends along the way help you through the sudden changes in your life, and a bone-ified family as well. (82,110 words) (Undertale does not belong to me, only the characters I added for plot reasonings. You belong to yourself, of course.)
What Lies Inside (Gaster!Sans x Reader ) by Jaethefallenhuman
42 parts Complete Mature
"You know sweetheart, lying doesn't get you anywhere with me." He said lighting a cigarette and placing it in between his teeth. Vanilla, leather, and smoke is quite the intoxicating smell. "I'm not lying, also who gives you the right to judge if I'm lying or not?" Something flickers inside me, a warm burning feeling that fuels my anger with this asshole. Walking up closer to me he pins me against the wall, smoke dances around his skull in a vary of swirls and curves. "Let's get something straight dove, I am your worst nightmare and I am your best daydream. I can see right through people, ironic right? There's something about you, I know you're hiding something inside." He really is good at seeing through people, but the thing is I'm not like anybody else. The media I use in this book does not belong to me, they belong to their rightful owners! Gastersans is NOT my original character ! He was created by Borurou Undertale was created by Toby Fox Highest rankings #1 Gatersansxreader #1 Gastertale #19 Gastersans
The Sad Love that Kills by Eggthehappy
17 parts Complete
!WARNING! This story may include self-harm, killing, blood, and Happy pills! If you are sensitive to these things, do not read! 2 years ever since the monsters have been free and living in a city with humans. W.D. Gaster has been free from the void and has a stable life, at least, that's what everyone thinks. He is hearing voices and refuses to tell anyone. Grillby the bartender has been having huge success with his business but is having trouble finding some co-workers. Only for a night of talking did they change each other's lives. But they don't know why they're lives, and intentions are changing. It might be a match made in heaven. But it can also be something that might make the alliance between monsters and humans crumble. (Yes I made the cover.)
the Undertale Adventures by Nanmaku113
33 parts Complete Mature
What, if you meet Sans and get a crush on him? You two would move into the underground and experience some funny adventures together! Get ready for: The Undertale Adventures ~Pibs
You may also like
Slide 1 of 10
W. D. Gaster - An Undertale Story cover
Should we be together? (Gaster x Alice OC) cover
× [Sickness] × || Undertale Fanstory || The Gasters/Skeleton Family cover
Origin Of The Bros (Fontcest) cover
The half breed and comic skeleton (Sans X Fem!reader) cover
W. D. Gaster x Reader cover
The Faults in Our Souls ~ Gaster x Reader (Under editing) cover
What Lies Inside (Gaster!Sans x Reader ) cover
The Sad Love that Kills cover
the Undertale Adventures cover

W. D. Gaster - An Undertale Story

35 parts Complete

It all started when W. D. Gaster became the Royal Scientist of the Underground. Many monsters knew him, some even followed him. But one day, he injected himself with DETERMINATION. It caused something bad to happen. But it all took a turn for the worst when he fell into his creation. When he fell into the CORE. When he found out the truth. When he drifted in the darkness. Forever. Undertale Characters and Undertale by Toby Fox Cover Art by me.

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