So, this brother of mine masturbates a lot...?

I hear him watching all the time with the moaning and the disgusting grunts. He lives right next door and all we have between us is about an inch of drywall. I've tried turning up my music so loud, but he just turns his up louder. I've slammed on the walls, banged on his door screaming at him to turn it off, but there's not a whole lot I can do. The dreadful moaning and squishing sounds haunt my dreams with vivid images of rough and gang. How do I get this guy to stop?