Spicing it up

So my husband says he wants to be nasty in bed. We already do anal just not as much...he eats my ass and I’ll give sloppy head...but I’m at a loss for ideas. What can I do for him? What ELSE can he do for me? At the most I’ll squirt on his face or soak him up when I ride him. He’s mentioning me pissing on him....or shitting on him in the shower. I am NOT joking!! That’s why I’m asking what ELSE I can do that kinky to avoid so much crazy shit.