Gaster! Sans X Reader
  • Reads 29,909
  • Votes 460
  • Parts 14
  • Time 1h 4m
  • Reads 29,909
  • Votes 460
  • Parts 14
  • Time 1h 4m
Ongoing, First published Sep 27, 2016
This story is based off of times in my life where I imagined G was with me! WARNING: I WILL ADD SEXUAL CONTENT, STRONG LANGUAGE, AND DESPRESSION

Description:
Y/N lived with her family on the beautiful island of Kauai (Where I live)
But its not all paradise. Her parents always put her down which in time, gave her depression... Monsters have been out of the underground for quite some time. There has only been a few monsters around since it was only an island. But... One faithful day at Kauai Highschool... A particular Skeleton with a leather jacket, white turtle neck, jeans, and cracks  on the skull, attended the school...
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18 parts Complete

Reader insert. What if W.D Gaster didn't just get split between time and space, but actually ended up in your world in an abandoned hospital you called home? Your were a young child he decided to use as experiments to test human determination in said world and breaks physical laws to test human possibility? He knows of the powers you gained from his experiments... all but one, this one allows you to tear realities just enough to teleport into them. Knowing of Undertale you felt bad for the monsters stuck below in their world and wish to help them, but something goes wrong and you end up going to certain AUs and helping them, gaining the attention of some bad skeletons who now desire your power for them-selfish-selfs.