PHOTOS: AnnaLynne McCord, Bikini Birthday Girl

Just a couple of days after she'd spent a day on the beach shooting scenes for the upcoming season of 90210, AnnaLynne McCord was out on the sand again, having fun in the sun in Malibu with her friends on Saturday at the Asics Beach House. But this time, it was to celebrate her 22nd birthday.

30 PICS OF ANNALYNNE'S BIRTHDAY BASH IN THE GALLERY!

The Georgia native, who actually turned 22 earlier in the week on Thursday, was joined by a gang of pals for the beach party, which saw the actress swimming in the ocean, playing tennis and racing her friends through the sand.