World, meet Erika Christensen's baby girl! The Parenthood star shared the very first photo of her little bundle of joy, Shane, on Instagram earlier this evening. "Week one down with the new BFF," the proud new mama wrote as a caption to the sweet family pic. Erika is shown giving her newborn a huge kiss on the cheek while the two spent quality time at home. The 33-year-old gave birth to baby Shane last week at her California abode. The adorable one, who weighed in at 6 lbs., 3 oz., is the first child for Erika and her husband, cyclist Cole Maness.