Is it true? Weddings are the perfect aphrodisiac? Get set for one riotous weekend where this nugget of "every-guy-knows" will be proven yet again. This weekend Jay, Dewey, and Phil become part of that most coveted fraternity; groomsmen. Dewey and Jay leverage a bet on the weekend; Jay must have a pure one night stand. No morning cuddles, sappy promises, no setting up house; just sleep with a girl and walk away. In return Dewey puts a hold on his life's work; for three days he promises to remain celibate, putting aside his personal quest of 20,000 women (Wilt Chamberlain's record). The stakes are a 1959 mint convertible Thunderbird and Jay's younger sister. From the rehearsal dinner to the bedrooms of the estate, there's no limit to how far the guys will go in this irreverent romp through the days leading up to that final walk down the isle.