Ashlee Simpson is defending sister Jessica Simpson, left, over digs about her weight gain. "It's disgusting that people would say those things," Ashlee tells Women's Health. "My sister has an incredible body. I feel sorry for anyone who would judge her, because she's one sexy lady." Ashlee, who had a son with husband Pete Wentz last year, isn't worried about gaining weight herself. "There's going to be a time when I'm way curvier, and that'll be sexy, too," she says. "Pete isn't worried about stretch marks. He always makes me feel good." (Photo: WENN)