Leonard: Well, I think tonight was a very good start.
Leslie: Me too. You're sure you're okay postponing intercourse until our relationship is past the initial viability test?
Leonard: No problem, I'm very skilled at postponing intercourse. So I guess I'll call you and we'll arrange another evening.
Leslie: Yes. I believe protocol dictates that you wait a minimum of 18 hours before you call so I'm not repulsed by your cloying eagerness.
Leslie: Again, it's your decision, you're the man.