Michael (Jerry O'Connell) is unable to stop the wedding. Natalie (Shannon Elizabeth) gets even with Kyle (Jake Busey) by knocking him out before shag time. The next day their marriage is annulled. Michael wins the bachelor money and pays off his debts in Las Vegas. Michael and Natalie get married. Steve (Horatio Sanz) finally catches Tricia (Jaime Pressly) in bed with another woman (the maid). He joins them for a threesome. Kyle, Jill the librarian and her Granny share some quality time.