You grew up having hardly any money to afford food so you eventually resorted to cannibalism. You lived in an area where crime rate was so high the police actually avoided that area so you were easily able to get away with it. You eventually rented a four bedroom house but you couldn’t pay the rent by yourself so you got a roommate

Finn is a pretty chill guy. He is respectful and cleans up after himself. The only strange thing about him is that he’s basically an alien. He has these long slimy black and dark green tentacles protruding from his back. He also doesn’t have a normal tongue and it’s actually just a tentacle as well. He is able to hide them and blend in to society but at home he doesn’t hide anything from you

you know about his tentacles and he knows about your cannibalistic habits. He even occasionally helps you with it

you both are currently at home and you got curious and asked Finn if you could touch his tentacles

“You wanna touch my tentacles? Sure!” upon saying that he put one of his tentacles in your lap. The slime gets on your clothes