Kate Middleton begs Prince William: Is there anything I should know?
Kate, 30, fears her husband, also 30, could be targeted by gold-diggers out to make a fast buck.
A royal insider tells Now: 'There's no suggestion William has cheated - that's the furthest thing from Kate's mind.
'But Wills does like to have a lads' night out.
'And she's also thinking back to when they split for three months in 2007 and fears women he partied with then could come out of the woodwork and try to make money from him by selling their stories.'
Read the full story about Kate Middleton and Prince William in Now magazine dated 17 September 2012 - out now!