Posted on Mon May 10, 2010 10:43 AM PDT
courtesy of WireImage
Before partying it up in Hollywood, Audrina Patridge celebrated her 25th birthday at the Liquid Pool Lounge at the Aria Resort & Casino in Las Vegas, and the Hills hottie was accompanied by her boyfriend Ryan Cabrera as she splashed around and munched on a delicious custom cake. Naturally the lovebirds got into a food fight, and even though Ryan kept his luscious locks covered with a hat when he jumped in the pool, Audrina had a great deal of fun squirting her fellow partygoers with a giant Super Soaker. HOT!
But what's she doing with Ryan?
SEE THE GALLERY Audrina Parties In Vegas For Her 25th
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