Petra Nemcova was seen heating up the dance floor at St. Tropez. The Czech supermodel was last seen with Sean Penn, and now she busted a move at the dance floor with a man unknown to us all. Petra wore a little black dress and silver flats as she dance and frolicked with the mystery man. She looked like she really enjoying herself, and that also leaves us all thinking if she is still with Sean Penn or not.
