Olympic gymnast Nastia Liukin is setting her legs on fire and doing it in a see-through top. The 31-year-old five-time Olympic medalist, fresh from seeing a troll ask her to post a pic of her "gross skinny chicken legs," is putting the matter behind her with jaw-dropping snaps on her Instagram, with Sunday bringing the 2008 all around champion's 1 million followers a fresh batch. Nastia, who clapped back at the "gross skinny chicken legs" remark, is now having the last laugh. Check it out below.