Making the most of her 25th birthday, AnnaLynne McCord elected to go for a swim in the Pacific Ocean in Los Angeles yesterday (July 16).

The "90210" knockout was joined by her boyfriend Dominic Purcell as she hopped into the water wearing her dress, and the wet garment seemed to reveal that AnnaLynne was going sans bra.

Miss McCord spent the evening out to dinner accompanied by her usual compadres- her sisters Rachel and Angel.

Before bed, AnnaLynne posted a message to her loyal Twitter followers- "Thank U every1 4 all of UR love! Simple 25th 4 me w/ my beautiful sisters."

Enjoy the pictures of AnnaLynne McCord on the beach in LA (July 16).