Sunday’s post on Cameron Diaz finally “acting her age” in My Sister’s Keeper, which hits theaters Friday, conjured up memories of one of my favorite psycho bitch scenes of all time, courtesy of the Tom Cruise flick Vanilla Sky. Cameron plays a character who’s desperate to turn Tom Cruise from fuck buddy to boyfriend, and after realizing that after all of her efforts spent sexifying Tom his affections belong to only men Penelope Cruz. Watch her as she scornfully pwns Tom with an impromptu sermon that parallels St. Paul’s teachings that sexual intercourse is a binding fleshly covenant. Lesson learned: Don’t fuck with your fuck buddy.

I swallowed your cum, that means something…Don’t you know when you sleep with someone, your body makes a promise whether you do or not.