Quote from Kelso in Bye-Bye Basement
Kelso: All right. Okay. I know what's going on here. You're being mean to Eric because you wanna do it with him. I mean, when Jackie dumped me, I had a buttload of leftover "wanting to do it with her" feelings. Donna: Oh, my God. You morons might be right. But why do I have these stupid feelings left over? I mean, I just want to be friends with him now. Jackie: [chuckles] What a child. Kelso: So innocent. You're never gonna be friends with him. All right, the only reason he was friends with you was so he could do it with you. Donna: Really? So he made friends with me when I was 5 so he could do it with me when I was 17? Kelso: Well, that and your sweet Big Wheel.