Papyrus: "Sans my fucking head is gone."
Sans: "Use one of the spares you fucking shit."

Undyne: "Can't a gay murderfish masturbate in this fucking house?!"
Sans: "Undyne you dirty piece of shit come help me."

Alphys: "Devour my hot lizard ass, Sans."
Sans: "Alphys you nasty fuck get out of the oven that's inappropriate."

I watched way too much FN@FB's LPs for my own good.

"YOU PIECES OF SHIT YOU DIDN'T INVITE ME TO YOUR NIGHT OF DEBAUCHERY. IN THIS WORLD ITS YIFF OR BE YIFFED."