Heroes star Ali Larter became a mom for the first time, giving birth Monday to son Theodore Hayes MacArthur in Los Angeles, RadarOnline.com has learned.

The 34-year-old blonde beauty and her hubby Hayes MacArthur, 33, told US, "He's our perfect Christmas present."

Don't forget, RadarOnline.com reported all the way back in July that the Varsity Blues beauty was seen browsing for blue baby clothes at Beverly Hills boutique Marie Chantal.