By peoplestaff225
Updated August 25, 2008 11:30 AM

Spending the weekend with her pregnant sister Kate, Minnie Driver looked great as she bared her belly in a bikini on Sunday in Santa Monica. She strolled along the beach’s shore before hopping into the waves to cool off.

On Saturday, the 38-year-old actress and singer kept it casual in a hat and black wrap dress while hitting the shops in Malibu (see extended post).

Minnie expects her baby, a delivery surprise, any day now!

Photo by Gerallt Radcliffe/Pacific Coast News; Most Wanted/Flynet.

Click ‘Continue Reading’ for a photo of Minnie from Saturday!