The glamour model whose divorce from Peter is soon to be finalised made the allegation on a UK TV chat show, but Peter and his agent Claire Powell have vowed to take legal action over her comments.
Speaking on The Graham Norton Show, Katie claimed men are lazy and would sleep with anyone, adding: Yes. Or his manager Claire.
Claire, who also managed Katie before her split from Peter, is furious about the allegation.
She said: She’s just nasty. That is total b******s. She’s using him to get publicity. We will definitely take it further.
Lawyers for BBC programme insisted Katie’s comments were removed from the show, which airs in the UK tonight (19.10.09).
In the candid interview, 31-year-old Katie also claims Peter, 36, refuses to speak to her on the phone without hurling abuse.
She also insists their three-and-a-half-year marriage was doomed, and wishes it had ended it years ago.
She explained: I was trying to keep it going and I still got all the stick and he walked out.
Katie who raises three children with Peter went on to speak about her new relationship with cage-fighter Alex Reid.
Alex has revealed he likes cross-dressing and has an alter-ego called Roxanne, and Katie admits she has seen him dressed as a woman and even helped him apply make-up.
She said: The outfit changes, the make-up, hair, the lot. And I boss him about. Before Alex met me, he hadn't dressed up for a year. And when he told me, I was like, 'Oh my God, I've got to dress you up.'
"So I dress him - the wigs, eyelashes, everything. And at first he was like, 'This is a bit weird, I'm not used to a girl doing me up. Call me strange, call me weird, whatever - but I love it.
I've never been with anyone so adventurous. Anything goes with him. I'm having such a fun time.
