Feral is a good word for the both of you.

[ It's said with a certain degree of fondness, though. He feels a little naughty, having sent that pic; a little guilty. He doesn't regret teasing him, it feels warm and friendly and he's sure Billy would tell him where to go if he crossed a line. ]

I don't know what I'd do without having you both here. Go out of my mind, probably.