Hilary Duff Lizzie McGuire in a Bikini

7/11/2011 4:30 AM PDT

Hilary Duff -- Lizzie McGuire in a Bikini

Former Disney star Hilary Duff flaunted her grown up womanly curves in a black bikini while on vacation in Italy this weekend.



The 23-year-old has developed an impressive body of work.