LONDON, ENGLAND - MAY 16: Cara Delevingne attends her sister Poppy Delevingne's marriage to James Cook at St Paul's Church, Knightsbridge, on May 16, 2014 in London, England. (Photo by Stuart C. Wilson/Getty Images)
LONDON, ENGLAND - MAY 16: Cara Delevingne attends her sister Poppy Delevingne's marriage to James Cook at St Paul's Church, Knightsbridge, on May 16, 2014 in London, England. (Photo by Stuart C. Wilson/Getty Images)