Brownie Sex
Making large quantities of hash-brownies, eating them, and then having sex while experiencing the chocolatey deliciousness.
I heard Franklin and his girl had some brownie sex last night.
Sex Brownie
When you're doing anal and your partner shits on your dick, so you make them lick it off while giving you a blowjob.
Ty: Dude, this girl I hooked up with shit on my dick!
Joe: Did you make her eat your sex brownie?
Ty: Hell yea!
Joe: Did you make her eat your sex brownie?
Ty: Hell yea!