Lindsay Lohan’s 17-year-old sis Ali recently caused gossip shockwaves when she appeared in public with a radically different face, firing up speculation that the teen had gone under the knife.

Ali, who’s rumored to have gotten botox and perhaps a chin implant, hit up Fashion Week in New York with her mom and sister, and Dina told RumorFix: “Ali has never had plastic surgery. The rumors are totally false.” [RumorFix]