#gaster x reader

Gaster, first day of teaching: That concludes my presentation. Y/n, I believe you wanted to assist me?

Y/n: Let’s see how many of you little losers were actually listening. (Kahoot music starts)

Gaster: I need you to swear-

Y/n: Fuck.

Gaster: … Swear as in promise.

Gaster: Did you three get eggs, like I asked?

Papyrus: EVEN BETTER!

Sans: (pulls a live chicken from inside his sweatshirt)

Y/n: We named her after you :D

Papyrus: OH HUMAN, I’M SO GLAD YOU’RE DRESSED UP FOR HALLOWEEN! WHAT ARE YOU?

Y/n, wearing Gasters lab coat because it smells like him: A very handsome scientist.