Leonardo DiCaprio's ex-girlfriend Bar Refaeli shared a video on Instagram in which she tries on see-through lace lingerie in an array of colors. She pulls down her underwear to show off her nude thong briefs and also flashes her butt. Refaeli, a top model, is a busy mother of three. DiCaprio is now dating Italian model Vittoria Ceretti. DiCaprio and Martin Scorsese are set to team up again for the movie adaptation of Erik Larson's book 'The Devil in the White City.'