Breaking news! Leonardo DiCaprio does not only date models! Turns out things are really heating up with his Wolf of Wall Street costar, Margot Robbie! Leo was spotted getting pretty cozy with the 22-year-old Australian actress.The duo showed plenty of PDA on the balcony of their South Beach hotel, and then later hit the beach with costar, Jonah Hill and pal Lukas Haas! At first we thought this was maybe just a hookup on the job but now it sounds like Leo and Margot are more than just an office romance! What do you think of Leo's newest lady friend?