Barbara Palvin Is Sheer Sexy After Hanging Out with Justin Bieber in Cannes!

Barbara Palvin is stunning in a sheer black dress while attending amfAR’s Cinema Against AIDS Gala during the 2014 Cannes Film Festival at Hotel du Cap-Eden-Roc on Thursday (May 22) in Cap d’Antibes, France.

The 20-year-old supermodel was joined by fellow Victoria’s Secret supermodels Jourdan Dunn and Jessica Hart, who posed with her handsome boyfriend Stavros Niarchos.

PHOTOS: Check out the latest pics of Barbara Palvin

The day before, Barbara was spotted chatting with her rumored ex-boyfriend Justin Bieber at the Roberto Cavalli Boat Party.

10+ pictures inside of Barbara Palvin and Jourdan Dunn rocking sexy dresses at the amfAR Gala…