Quote from Kelso in Drive-In
[split-screen between Eric and Kelso talking and Jackie and Donna talking:] Eric: I'd have to keep up with you and Jackie. That would make me nervous. Donna: I could always talk to you if I get nervous. 'Cause you've got to be bored with sex by now. Kelso & Jackie: What do you mean? Eric: You and Jackie- Donna: You and Kelso have done it a million times. Kelso: True. Jackie: We have never done it. Kelso: Yeah. Slid into home on the second date. Jackie: He got to third base once and that was an accident.