David Beckham found an unlikely ally in his alleged affair with prostitute Irma Nici. A top escort boss said she had not heard that David Beckham had been cheating around, or if he does, she would have known.

"If he had been hiring call girls and sleeping around in America, I would have heard about it," Michelle Braun tells United Kingdom's The Sun.

"Beckham has never been involved with working girls. He is too goody two-shoes for that."

The New York-based Braun, who heads a profitable escort agency (she reportedly made £3 million) said that she had worked with top girls in the industry and supplied services to sportstars including Tiger Woods, but she has not heard that David Beckham was a patron of escorts.

Braun said she had not heard of Irma Nici either.

Irma Nici, the $10000 a-night escort who claimed to have sexual encounter with David Beckham, has been served a legal writ for £5 million by David Beckham's legal team, after being tracked down by a private investigator.

Nici, in a story published by US magazine In Touch, claimed that she had sexual ecounters with David Beckham, twice: once in New York and once in London. Recent reports quotes her as saying that she had slept with Beckham five times.