I've been kinda obsessed with hot white guys that go to my high school. But popular guys, the star-of-the-football team types, the hot str8 guys every hot girl gets and uses. So since I'm the only bi guy at my school, and since no one wants me, I believe my statement above. And also my crush I have now does weed--which to me makes him a bad boy type, which is hot too--but we're great friends.... also he's in a rock band. Anyway I'm led to believe all popular pretty boy types and all guys who do drugs are str8... TEENS of course!! NOT adults! Teens only apply to my theory.
A gay guy I knew at school (the RA that shall not be named) was friends with guys who smoked weed and did harder drugs. So no: drug use is not confined to straight guys.