AnnaLynne McCord showed off her bikini body on an LA beach on Thursday. The 90210 star, in the company of her sister and friends, slathered herself in sunscreen before demonstrating her athletic ability playing volleyball. She later cooled off with a dip in the water. AnnaLynne continued her 25th birthday fun after ringing in her new year on July 16. AnnaLynne tweeted a picture of her birthday party to fans saying, "Thank you everyone for all of your love. Simple 25th for me with my beautiful sisters." She not only spent time with her sisters, but also shared a birthday kiss with boyfriend Dominic Purcell on her special day. AnnaLynne is now enjoying downtime after coming off her fourth season of 90210, but she'll be back to work soon, as the fifth is expected back on The CW this Fall.