It's never stated, but in "The Mad Real World" sketch Tyree rapes Chad.
Dee Snyder from 80's group Twisted Sister appears in "Ask a Gay Dude".
Chad: Hi, I'm Chad, your new roommate.
Tyree: Well, looky here, "Chad." For the entire period you in my room, I better not catch you standing up peeing. You sit down when you pee, you got that? Now get your fat ass on outta here.
(Chad Crying as his girlfriend Katie is having sex with Tyree)
Tyree: Man, can you hold it down? I'm tryin' to make love over here!
Chad: Tyree, you stabbed my dad! And you had sex with Katie.
Tyree: Hey man, you got that all wrong. I ain't had sex with Katie. Lysol had sex with Katie. I just filmed it.
Katie: No, Tyree, you had sex with me too.
Tyree: Correction: I had sex with Katie.