Minnie Driver Puts Zipper to the Test

7/21/2008 6:22 PM PDT
Minnie Driver and her sweatshirt are ready to pop.

While out shopping in Malibu this weekend, the 38-year-old mom-to-be stepped out in shorts that look like they could belong to her baby daddy -- whoever that may be.

Minnie is due at the end of August.