They were BFFs growing up, but neither Nicky Hilton nor her sister, Paris, was invited to Khloe Kardashian’s wedding on Sunday.

We caught up with Nicky over the weekend as she celebrated her 26th birthday a few days early at Dusk nightclub at Caesar’s Palace in Atlantic City, NJ. While the Hiltons and Kardashians were friends growing up, these days, it seems they’ve grown apart. “I wasn’t invited to Khloe’s wedding this weekend,” Nicky admitted, “but if I had been, I would have stuck to ordering her a gift off her registry – it’s always the way to go. None of our family was invited to the wedding.”

Nicky (pictured above with Paris and Kim Kardashian at Fashion Week in February) insists there are no hard feelings about being left off Khloe’s invitation list and says she is focused on celebrating her birthday and finding time to see her superstar sister. “Paris and I get so busy with work, but I have to make a plan to spend time with her when I get home. My favorite memories of our childhood birthdays growing up were at Benihana. It’s a chain restaurant, but we loved it and how they cooked your food at the table.”

So what does the girl who can buy anything she wants desire as a birthday gift? “I collect watches, so probably a great vintage watch — a Rolex in white gold — and I really want a Hampton’s cake. They make the best birthday cake and they’re back home in LA.”

While Paris is busy filming My New BFF all over the world, Nicky continues to work on her fashion and accessory lines overseas. “I just launched my Nicky Hilton brand at Tokyo Girls Collection in Japan. So I’ve been there working on that and next we are adding jewelry and bags.”

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