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Paris Hilton keeps up with the latest fashion trends ... even while on vacation in Paris.

The blonde heiress, who has been in Europe for BFF Petra Ecclestone's wedding, held on tight to her W Magazine while leaving the Costes Hotel.

Wearing sexy black tights and Christian Louboutin boots, the 30-year-old mogul showed off her long and lean legs. Love the studded purse, P!