"Extra" correspondent Adrianna Costa caught up with the Kardashian women at the opening of their "Kardashian Khaos" boutique in Las Vegas, where they talked about Kourtney's pregnancy, the Barbara Walters interview -- and Kim's recent humanitarian trip to Haiti.
"It was such an amazing experience going for We Advance," said Kim. "The spirits of everyone there, despite the conditions they have been living in, is like nothing I've ever seen before."
Watch exclusive footage of Kim in Haiti!
As for the grilling the Kardashians underwent with Barbara Walters during her "10 Most Fascinating People of 2011" special, matriarch Kris Jenner just laughed, "Oh, Barbara was great! I'm a big, big fan and we had a great interview with her."
Costa asked the newly pregnant Kourtney about her craving for Gatorade. "Yeah, I am, I don't know why. I'm normally, like, a water girl."
The Kardashians were also excited about their boutique opening at the Mirage Hotel. Kim gushed, "We actually have never seen the store. We helped decorate it, but we've never seen it all finished. I'm proud that I can bring our collection to Vegas. We love it here!"
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