Family Photo: The Cross-Mahoney's Park Playtime

Marcia Cross and Tom Mahoney leave a Brentwood playground after a busy afternoon with daughters Eden and Savannah on Saturday in California.

Playtime at the park!

Marcia Cross and Tom Mahoney leave a Brentwood playground after a busy afternoon with daughters Eden and Savannah on Saturday in California.

The 3½-year-old twins are the only children for the Desperate Housewives star, 48, and her husband.

“I know they don’t need me every single second of the day … but I also know how every phase is so fleeting,” Cross explains. “And I hate missing any of it!”