hat cellulite Marcia Cross dress sunglasses beach twins kids malibu hat cellulite Marcia Cross dress sunglasses beach twins kids malibu

Marcia Marcia Marcia!

The former Desperate Housewives actress was snapped at the beach in Malibu with her twin daughters Eden and Savannah yesterday, and she accidentally gave us a peek at her nude panties. Whoops!

While she may not be wearing the sexiest underwear, you gotta hand it to her for picking out an oh so practical seamless thong ... and for having pretty much the best 50-year-old booty and thighs we've ever seen. Sorry Madonna!