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OTRC: Kim Kardashian talks pre-wedding jitters, Khloe Kardashian makes prediction

Khloe, Kourtney and Kim Kardashian talk to reporters at a Los Angeles launch party for their Kardashian Kollection clothing line for Sears on Aug. 17, 2011.

Khloe Kardashian says she thinks her sister Kim, who is set to marry basketball player Kris Humphries on Saturday, will be just as calm as she was when she got married.

Khloe Kardashian, 27, wed 31-year-old NBA star Lamar Odom, who plays for the Los Angeles Lakers, in 2009. The wedding was featured on the E! reality show "Keeping Up With The Kardashians." The two later received their own spin-off series.

"Everyone, when I was getting married, was like 'Why aren't you nervous?'" Khloe Kardashian told OnTheRedCarpet.com co-host Chris Balish and other reporters at a recent Los Angeles event to mark the launch of the "Kardashian Kollection" clothing line for Sears department stores. "They were so shocked that I was so calm."

"I think you're going to be just as calm," she told Kim Kardashian. "I don't know why people say it's nerve-wracking."

Kim Kardashian, 30, and Humphries, 26, are set to wed in Montecito, California before some 500 guests, including celebrities. The event will be part of an E! special called "Kim's Fairytale Wedding: A Kardashian Event," which is set to air in October.

This is her second marriage. Kim Kardashian married her first husband, music producer Damon Thomas, in 2000, when she was 19 years old. The two divorced in 2004.

"I'm used to this," the reality star said, referring to the "Kardashian Kollection" launch event, which she and Khloe attended with their "Keeping Up With The Kardashians" co-stars - sisters Kourtney, Kendall and Kylie and mother Kris Jenner.

"I'm not really used to walking down the aisles," Kim Kardashian added, referring to her upcoming wedding. "I'm sure it'll be very different. Everything's like really calm right now. For some reason, everyone says you freak out but that was like maybe last week. I feel like everything's set and done."

Kardashian and Humphries began dating in December 2010 and the basketball player proposed in May with a $1 million, 20.5 carat engagement ring.

Reporting by Chris Balish, co-host of KABC Television's entertainment show "On The Red Carpet" (check for local TV listings).

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