SYDNEY, AUSTRALIA  [Monday Jun.26.2006]  /Mix103FM.com/ -- Speculation was that Tom Cruise would escort his children to mom, Nicole Kidman's wedding.

But, the Daily Telegraph reports that it was Cruise's sister, Cass Mapother who brought Isabella, 13 and Conor, 11, to their mother. The children arrived Wednesday on a flight from Los Angeles.

Isabella was expected to be a bridesmaid while Conor was believed to be a member of Urban's party at Sunday's wedding service.

ALSO, THERE IS A PRE-NUP for Keith and Nicole. Before heading to Australia for the wedding, the couple signed a pre-nuptial agreement, according to KCAL TV in Los Angeles. Kidman had previously refused any pre-nuptial agreement, but was talked into it by her advisors. Kidman reportedly has an "out" clause that would kick in if Urban falls into drug and alcohol abuse. Otherwise, if Kidman calls it quits, Urban would receive $600,000 for every year they were married. No, word on what Kidman would received if Keith walked first.

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