Some celebrities are bound to heat up the winter season! Check out some of the stars that showed off their winter bikini bodies in 2013 -- including Kim Kardashian, Heidi Montag, Rihanna, and many more.
The 90210 actress wore a racy black cutout bikini on the beaches of Australia on New Year's Day. The 26-year-old enjoyed strolling hand-in-hand with on-again-off-again boyfriend Dominic Purcell.
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