We’ve all seen what Hilary Duff’s constant working out has done for her sexy little body, so it’s nice to see that she’s decided to bring her sister along. Here are the pair leaving the gym in matching spandex get ups. Sweet. This is a sister combination I would like to somehow find myself a part of. Sure Haylie’s just a poor man’s Hilary, but mix them up together in a nice little kiddy pool filled with baby oil and nobody is going to care.