Jerry O'Connell's wife will be pulling double duty when it comes to getting holiday party ready this December, as her twins Dolly and Charlie prepare to celebrate their 5th birthday on Dec. 28. "I go out of my way to make sure their birthday is completely different from Christmas," she tells Us. "I fill their bedroom with balloons. I stay up all night blowing up hundreds of balloons. We always have family over and they get to blow out candles. It's not like they don't have a birthday but this is the first year they're like, 'we want a party!'"