Photo. Shop. It's a nifty tool called Liquefy. It's a favorite among vogue, teen cosmo, and Vanity Fair. They use it to make their cover girls shoulders and hips so narrow that they appear to be the same size as their bigass watermelon heads.
Or they got a friend to bring in their 11 year old son and told him to hold on to some women's jeans for a photo op. It looks low budget. LoL!