Naomi Campbell joined the ranks of vacationing supermodels when she broke out her bikini body today in Sardinia. She was on a yacht with a few friends, including her Russian billionaire boyfriend Vladislav Doronin. The duo went for a quick swim before hopping back on deck, hosing off, and soaking up the sun. Naomi and Vladislav love spending their time off by the sea, and they're fresh off a trip to Capri with relaxation experts Dolce and Gabanna.

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