Cara Delevingne put on a skimpier party dress and the drinks were flowing. This image appears in the gallery:Rihanna, Cara Delevingne And More Had Too Much Fun At The British Fashion Awards 11. Cara Delevingne put on a skimpier party dress and the drinks were flowing. Picture: Getty 12 images See the full gallery: Rihanna, Cara Delevingne And More Had Too Much Fun At The British Fashion Awards