S8, E4: Ross and Rachel's attempt to explain to everyone how they ended up in bed together six weeks earlier quickly devolves into an argument over who pursued whom. Then, Ross shocks them by announcing that he has the whole encounter on videotape. Meanwhile, Monica and Chandler return from their honeymoon, excited at the prospect of socializing with another recently married couple whom they met on the flight home . . . until they discover that their newfound "friends" gave them a fake phone number.