Klass, who is engaged to Graham Quinn, has told how a newly-married well-known celebrity propositioned her over lunch about six months ago.
The pregnant 32 year-old told Now magazine: 'About six months ago, a newly-married Hollywood star asked me to sign some kind of sex contract with him. I just thought, 'Mate, which planet are you from?'
'I met him a few times and when I went to interview him it was like something out of a film. We were having lunch and, as the starter arrived, he launched into it.'
She added: 'I was like, 'Bugger, I've got main and dessert to go, I'm stuck here!'
'Then his PA came over with a confidentiality contract - I just thought, 'Oh my God, your poor wife. I don't want to be a marriage wrecker.''