Kristen Bell lifted up her shirt to reveal her bare stomach while out with friends in LA yesterday. She showed off her pregnant belly for a pal, who snapped a picture of the star. Kristen's been open about her pregnancy since announcing the news last year and recently celebrated with a baby shower in Los Feliz. She's been juggling motherhood prep with work since her Showtime series, House of Lies, is in its second season. The cast recently welcomed Matt Damon for a cameo and shot his episode in just two days due to his busy schedule.