XXX Factor: Simon Cowell gets 'excited' when Khloe Kardashian sits on his lap live on air

X Factor USA whip-cracker Simon Cowell got a little flustered after a close encounter with the show’s co-host Khloe Kardashian on the latest episode.

The 28-year-old sister of Kim planted her posterior provocatively on the 53-year-old Simon's lap — and the results speak for themselves in the video above.

“Are you too excited to introduce the next act?” Khloe asked Simon, clearly enjoying the situation.

"I’m kind of getting there yeah,” replied the supposed lady-killer.

Judges Britney Spears, Demi Lovato and L.A Reid looked on and laughed at Simon's awkward blush.

Looks like Cowell wasn't the only one getting a "rise" out of the moment.

It’s the latest on-air flirtation between Khloe, who is married to basketballer Lamar Odom, and man-about-town Simon. Watch his inappropriate comments about Khloe’s nipples from a few weeks back:

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