Suddenly we understand why Tulisa is fascinated with Kelly's bum...

Kelly Rowland London

New X Factor judge Tulisa Contostavlos couldn't praise her fellow judge's bum enough this morning, telling us how how she loved squeezing Kelly Rowland's "juicy" behind! And as this picture from today's red carpet at latest round of the London X Factor auditions shows, it's not hard to see why...

Tulisa told us all this morning about fondling Kelly's rear: "It was so juicy.

"I gave it a quick ‘oo-oo’ and all I can say is wow… wow!"

These two seem to be getting on like a house on fire. Check out Kelly below, posing with fans on the red carpet.

*insert Bootylicious pun here*

Kelly Rowland London

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