Lachey and Vanessa Minnillo hookup

Nick Lachey changes women faster than you change your underwear...literally! He was with Kim Kardashian Friday night at Paris Hilton's "Simple Life" kick off party... and on Saturday night he was at the Borgata Hotel & Casino in Atlantic City. Nick Lachey shared a room with TRL host Vanessa Minnillo after the fight, and "Entourage" star Jeremy Piven slipped out of the after-party with a hot brunette admirer.