Scarlett Johansson stopped by a grocery store in Malibu yesterday. She picked up some edamame, flowers, and rice cakes during the shopping trip and then apparently headed back to her boyfriend's house. Scarlett is reportedly living with Sean Penn, and the duo were recently spotted sharing a couple's jog with pal Owen Wilson around their neighborhood. The workout session sparked rumors that Scarlett is pregnant, but that news was quickly denied by her rep. They may not have a baby on the way, but the couple still seem to be going strong since taking a romantic getaway to Mexico last month.