Keira Knightly had her breast augmented for her latest endorsement for Chanel Coco Mademoiselle. This is not Keira's first time to bare her flesh. Keira Knightly had already posed nude for Vanity Fair along side with Scarlett Johansen and designer Tom Ford last year. At least this time Keira has something to show not unlike her Vanity Fair's shot where he looks so anorexic.