Audrina Patridge was back in her bikini on Saturday afternoon to take a dip at the DKNY Jeans Malibu Beach house. It doesn't seem to take much to get Audrina out of her clothes and into her swimsuit since we've seen so much of her bikini body this Summer. Whether she's on set in Hawaii filming Into the Blue 2 or just lounging in her backyard with LC, Audrina has spent lots of time soaking up the sun — hopefully she's following Lauren's beauty advice and sporting some sunscreen.

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