Co-stars in the 2009 hit comedy The Proposal, Sandra Bullock and Ryan Reynolds have just as much chemistry off screen as they do when the cameras are rolling. But, contrary to what many believe, their relationship isn't sexual in nature. "Ryan is not my lovah...I don't get his loving after dark," Sandra has said. In fact, they describe themselves as brother and sister. The supportive "siblings" found solace in each other following splits from their respective partners years ago, and when asked if they'd ever work together again, Ryan said he'd jump at the chance if the right script came along. He added that working with Sandra is a "great experience" because "it's like working with family." In 2011, the pair took a hike in Wyoming and, in an act of true friendship, Ryan played dad to Sandra's 19-month-old son by strapping him to his back for the trek.