A Guy Thing 2003

She's funny. She's sexy. And she's related to his fiancée! Waking up next to Becky (Julia Stiles), the hot tiki dancer from his bachelor party, Paul (Jason Lee) has to come up with a quick white lie to "protect" his bride-to-be Karen (Selma Blair). But when Becky's underwear turns up in Paul's couch, Becky's ex turns in some incriminating photos of Paul, and Becky herself turns out to be Karen's cousin (and a better match for Paul), he's suddenly faced with a heart-stopping decision. If he does the right thing, will he lose the real thing forever?