Robin: I can't believe my baby sister is planning to lose her virginity to a douche with a faux hawk. This can't happen. You guys have to help me talk her out of it.
Marshall: Speech to talk a girl out of having sex.
Ted: Yeah, I don't have any of those.
Barney: Discouraging premarital sex is against my religion.
Robin: Please? I'm her older sister. I'm supposed to teach her how to make good and responsible decisions.
Lily: It's 2:00 and you've already had three scotch and sodas.
Robin: That's why I need your help.