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Khloe and Kourtney Kardashian dish family secrets! Who's the biggest troublemaker?

/ Source: TODAY

Despite being an unofficial member of the family, Ellen DeGeneres just couldn't "Keep Up With the Kardashians" Wednesday — so she turned her show over to them instead.

Khloe Kardashian took over the hosting duties and invited sister Kourtney along via Facetime for some family fun in the form of a tell-all game.

Khloe asked the questions in the rapid-fire quiz, and Kourtney named the names!

We now know the messiest Kardashian is Kylie; the biggest troublemaker is Khloe.

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But which sister "complains the most"?

"I don't know," Kourtney wondered. "Is it Kim?"

"Duh! It's so Kim," Khloe shot back.

RELATED: Kourtney Kardashian reveals whether or not she's back together with Scott Disick

But when the categories became more flattering, Kourtney became more certain of her answers.

Who the funniest? "Me!" she said. The sexiest? "Me, again!"

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