Eric: Well, fellows, I convinced Donna to break her celibacy vow, which in laymen's terms means I'm a layman.
Hyde: Damn, Forman, you got your girlfriend to have sex with you? What is your secret?
Eric: Okay, you guys, it's a big deal. Have either of you ever slept with my girlfriend?
Kelso: No, but I've done it with Hyde's girlfriend. And I was good. [Hyde punches Kelso's arm]