Hilary Duff: Intense Piloxing Stretch!

Hilary Duff shows off her amazingly flexible body during a piloxing class session in this new pic posted to her Twitter account. "Nice stretch... Mmm @piloxing" the 25-year-old actress posted for all of her followers to see! The next day, Hil and her adorable baby boy Luca headed out to a baby class together in