June 23, 2009 06:10 PM

Mike Guastella/WireImage

While her sister Paris’s love life is always busy, Nicky Hilton, who is happily dating David Katzenberg, is spending her summer preparing for her next fashion show, at September’s semiannual Tokyo Girls Collection in Japan. Hilton, who is well known there as a clothing designer, says the island country gives her lots of new ideas. “I think I got inspired in Japan a lot,” Hilton, 25, tells PEOPLE at the 2009 NBA Championship Victory Celebration hosted by the Los Angeles Lakers. “I am launching at Tokyo Girls Collection, which is in an arena with 24,000 people. I have been trying to wrap it up and get the samples set out.” Hilton has had several clothing lines (Chick, Nicholai), designed handbags (Samantha Thavasa), both catering to women in their 20s and early 30s. Part of Hilton’s excitement for the Japan may lie in the show’s unique aesthetics, she says. “The girls, actually, as the models come down the runway, are shopping, buying clothes,” she says of September’s show. “It’s cool.” –Nicholas White

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