Kim Kardashian: North West Is "Obsessed With Elf On a Shelf," Reveals Family's ...

He's here, he's there, and Nori knows where! Kim Kardashian told that her 17-month-old daughter North West is a big fan of Christmas traditions -- particularly, the Elf on the Shelf.

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The reality star, 34, spoke to Us on Wednesday, Dec. 10, at ACRIA's 19th Annual Holiday Dinner Benefit in NYC, about her baby girl's second holiday season. 'She's spending the night at Kourtney's,' Kim told Us, 'and they had a gingerbread decorating party. They had 20 kids there.'

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Although cookies and icing at aunt Kourtney Kardashian's house are great, nothing excites Nori more than the Carol Aebersold's 2005 award-winning children's fable, The Elf on the Shelf: A Christmas Tradition.

'My daughter's obsessed with Elf On the Shelf,' Kardashian told Us. 'So she saw two of them and she screamed and screamed. She's so excited for Elf on the Shelf. It's her most exciting thing.'

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The Paper magazine cover girl added that she and Kanye have a wonderful surprise for their daughter on Christmas Day. 'We try not to spoil [her], but we have something nice that I think she'll really love,' the star teased.

She also revealed that the family will celebrate the holiday at their brand-new house in Hidden Hills, Calif., which has been in the works for some time. 'It's in the new home and she will be so surprised,' Kim told Us. 'It just got delivered, so when we move in, she'll see this a big fun play stuff that we got for her. We're going to show her on Christmas.'

PHOTOS: Look inside Kimye's beautiful $20 million home!

The couple's $20 million estate is located just five minutes away from grandma 'Lovey' Kris Jenner's Calabasas home. The 16,000 square foot mega-mansion, which is tucked inside a private gated community, sits on 3.5 acres. The property features eight bedrooms, 10 bathrooms, a separate guesthouse, two pools, a spa, and a vineyard.