Biel, who married Timberlake last October, attended Mitchell's baby shower in February. "Jessica Biel was one of the first guests to arrive," a source told Us Weekly. "She and Beverley are super close friends and were sitting together for the entire shower. Jessica was asking Bev a million questions about the baby, and Beverley was referring to her as an 'auntie.'"
Since giving birth, Mitchell has been "mesmerized" by her daughter and is having fun dressing her up.
"Now I am really in trouble. Can't wait to dress my little angel, only trouble is she is so little she doesn't fit in anything I have!" she tweeted. "So sad I have to go shopping for this beautiful little girl.[Hashtag] So not sad." Mitchell added, "Truly the sweetest little girl in the world but I guess I'm partial."