Ali Larter stepped out in a sheer black dress for lunch at Spago in Beverly Hills yesterday. She was joined by a special guy, her baby boy Theodore Hayes MacArthur, who slept soundly in her arms leaving the restaurant. Theodore is almost 3 months old and has been spotted out and about with mom, though this is our first good look the adorabe little guy! His dad and Ali's husband, Hayes MacArthur, has been busy shooting his show, Perfect Couples. The comedy is part of NBC's three-hour Thursday comedy block, though it has stiff competition for your favorite from the night.