Posted on Sun Sep 25th, 2011 8:30am PDT
Selma Blair is all about son Arthur, and we don't blame her! He's too cute!
Blair and fam hit up a friend's birthday party in LA on Saturday, where Selma found all sorts of ways to show love to her baby boy -- including wearing a fake mustache! Adorable!
See all the pics in our gallery below! Can't believe Arthur is almost two months old!
SEE THE GALLERY Selma Blair Loves On Baby Arthur
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