Now that Cameron is finished shooting What Happens in Vegas with Ashton, she's back to her busy life of running errands and visiting salons in LA. Actually Cameron won't have much down time in between her many projects. Yesterday it was reported Diaz got two new pint-sized costars — the Fanning sisters! The girls signed on to play Cameron's daughters in her next movie, My Sister's Keeper. It's hard to imagine Cameron as a mom, but maybe that's because she still seems to be talking about winning burping contests.