By Paul Majendie
London - The former personal assistant to David Beckham, who claims she slept with the England soccer captain, said that what she did was wrong but insisted she was telling the truth.
Beckham has already dismissed as ludicrous claims from Rebecca Loos that she had sex with the 28-year-old midfielder in Madrid.
He and his pop star wife Victoria called in lawyers after a Sunday newspaper printed allegations from a second woman - 29-year-old lawyer's daughter Sarah Marbeck - who said she had an affair with Beckham.
The celebrity couple, who have put on a very public display of mutual affection since the stories erupted to dent their carefully nurtured image, have dismissed the claims as "absurd and unsubstantiated".
But Rebecca Loos insisted: "I am 100 percent sure of what I am talking about. There is no doubt in my mind.
"People are calling me a liar and calling me names and, you know, at the end of the day these are the facts," she said.
"This is what happened. This is the truth. I shouldn't be ashamed of it," she said in an interview.
Loos, who lost her job as Beckham's assistant in Spain when he ditched her public relations company, said: "I was wrong, I was wrong to have done what I did. I know that.
"But it did happen and I am not going to live with a lie for the rest of my life," said the 26-year-old daughter of a Dutch diplomat and an English mother.
Britain's number one celebrity couple, who command as much tabloid coverage as Princess Diana once did, have been the subject of media frenzy since the allegations broke.
Loos said that when she went home "I felt very breathless, very happy, smiling. I got home and my mother said 'Where have you spent the night?' and she could just tell by the look on my face".
She said her mother was supportive but had told her: "Be very careful. You are putting your job on the line. There is a family involved who could get hurt, and children etc.
"So I was very aware of what I was getting myself into," Loos said. "But I just couldn't stop it."