Ashlee Simpson and CaCee Cobb Vacation in Bikinis | Pictures

A bikini-clad Ashlee Simpson joined newlyweds Donald Faison and CaCee Cobb for a day at the beach yesterday in Oahu, Hawaii. Ashlee's mother, Tina Simpson, and her son, Bronx, were also along for the fun. Ashlee and CaCee splashed around with Bronx in the waves, and Donald did a little bodysurfing, before the group took a break to relax on the warm sand.

CaCee and Donald got married earlier this month. Jessica Simpson served as a bridesmaid at the nuptials and also vacationed with the group in Hawaii this week, though she wasn't with them by the shore yesterday. Jessica's been tweeting family photos during the getaway, including one that seemed to confirm that she is pregnant for a second time. The picture, snapped on Christmas Day, showed her daughter Maxwell sitting in front of the words "Big Sis" written in the sand.