Soaking up some sunshine after a hard day of filming, Khloe and Kourtney Kardashian made a quick stop at Wacko yesterday afternoon (March 13) to fit in some retail therapy.

The youngest Kardashian sister rocked a stripped dress with killer black heels, while Kourt donned a black and white patterned dress and sipped on a ice cold beverage.

In the next episode of "Kourtney & Kim Take Miami," Khloe deals with the pressures from shooting a live show for "X Factor". "I just arrived in London. It's my very first time here. I am still upset about X Factor and my first week on the show," the 28-year-old explains to her sisters. "And right now I need a little bit of comfort."

Trying to avoid her anxiety, the reality starlet admits, "Do you know what I said to mom the day of, I go, 'I'm going to fake a heart attack just so I don't have to come. Because that's a real excuse... I am not a nervous person. I have never the nerves."