Actor Donald Faison's wife Cacee Cobb is expecting their second child.

The former Scrubs star and Jessica Simpson's best friend are already parents to 14-month-old son Rocco, and on Tuesday (21Oct14), Cobb used her adorable son to share the exciting baby news with her followers.

She posted a photo of Rocco on Instagram.com, and photoshopped the words "I'm a big brother!!" on top of his shirt, and added a bow tie and balloons in his hand.

The new addition will be Faison's sixth child - he has four kids from prior relationships.

The couple wed in December (13) at the home of Faison’s best pal and Scrubs co-star Zach Braff.