Angelo stopping makes him snarl, once again both frustrated and excited because he wasn't lying about that. Angelo drives him crazy, intoxicating him in a way no other human ever has. There's never been another human like him. Alastor steadies himself, keeping his grip on Angelo's hand tight around his cock just in case the son of a bitch tries to let go, and grunts with pleasure as he's filled up so roughly, like Angelo is marking his territory. He runs his tongue across his teeth. "You could ask."