(Ross is explaining to the gang how the videotape came to be made)
Ross: (to Joey) About a month and a half ago, remember... I came to you with a problem? Um, uh... a personal thing?
Joey: Personal... What personal thing?
Ross: About... about sex?
(Joey appears confused)
Ross: ...That I hadn't had sex in months?
Joey: (grinning) Yeah, I knew what you were talking about.