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Cindy Crawford flexes her muscles while in her home gym
Supermodel Cindy Crawford is still going strong.The 55-year-old cover girl is proving age is just a number by posting a flexed biceps workout photo on her Instagram account.Friend and fellow supermodel Christie Brinkley gave her a fire emoji as actress Roma Downey responded with 'looking good.' Baring arms : Supermodel Cindy Crawford shows off her toned arms in a post-workout Instagram selfie. The former cover girl said she works out with weights and machines several times a weekCrawford appears to be makeup-free, and is wearing a sleeveless black top with a ruched waist and high waist olive green leggings.