EXCLUSIVE: MI5 officer whose wife was exposed as a prostitute in Max Mosley orgy says the ordeal has devastated their lives

The MI5 officer who quit after his wife was exposed as a prostitute in a sadomasochistic orgy with Max Mosley has told for the first time how the affair has ruined their lives.

The spy was forced to resign after confessing he was married to the ‘professional dominatrix’, who secretly videoed the sex session with the F1 motor racing boss and sold details to a newspaper.

The former £30,000-a-year mobile surveillance officer – who tracked terror suspects – said he quit to spare his bosses embarrassment.

He would not discuss how much he knew about his wife’s involvement in setting up the sting against Mosley, or if he played any part.

Nor would he be drawn on why, as has been claimed, he kept his MI5 bosses in the dark about his wife and her ‘job’.

The man, who cannot be named for security and legal reasons, said: ‘You know what has happened to me. And you know what has happened to xxx  .

'It has had a devastating effect on xxx and a reasonably bad effect on me.’

Known only as Woman E in the High Court privacy case brought by Mosley over the affair, his wife was excused from giving evidence due to her ‘emotional and mental state’.

He said: ‘Our parents only found out what xxx did for a living from reading the papers. It’s caused problems and hurt.

‘Now I have got to look after myself and my wife and get the best out of a bad situation.

'I’m not going to moan about it and get myself in a worse position than I am already in.

‘I am losing everything I have ever worked for. I’ve lost more than Mosley’s lost, in that respect.’

He described the moment he finally owned up to bosses about his wife’s ‘job’ and the sex session with Mosley, published in the News of the World.

He said: ‘They just went mental, particularly regarding the tape.

‘I loved my work but I wanted to cause as little embarrassment as I possibly could, so I decided to resign quietly.

'I could have stuck it out, I could have got round it, I think.

‘Now I have just got to be very careful. There is a lot I could say, a lot that has not come out, but I don’t want to get into it because I don’t want to get in the cack with work.’

The agent's wife, who cannot be named for legal and security reasons, poses on her website

He fears his former bosses could make it hard to get another job.

He said: ‘The first thing people are going to do is write for a reference and if I speak out they could say I’m not getting one.’

The ex-Royal Marine commando added: ‘I never had trouble misleading people about what I did. I like people thinking I’m boring.

'I thought it quite amusing. In some ways it was the same with my wife. Do you think she told people what she does?’

He was exposed when a surveillance team from former Metropolitan Police chief Lord Stevens’ investigation firm Quest tailed him from his home near Milton Keynes to MI5’s Thames House headquarters.

Privacy case: Max Mosley is suing after the orgy was revealed in a newspaper

The firm was hired by Mosley, 68, to identify who was behind the revelations.

It is still unclear why MI5’s routine vetting failed to unearth the activities of the spy’s wife.

Her personal website – now taken down – gives a full breakdown of her ‘specialities’, which include caning or flogging.

It also shows her in military uniforms similar to those she and four other prostitutes wore during their session with Mosley, son of wartime fascist leader Sir Oswald Mosley.

Many of the website pictures were clearly taken at the couple’s home.

The racing boss denies News of the World claims that the orgy was Nazi themed.

Mr Justice Eady has reserved judgment in proceedings for invasion of privacy brought by Mosley.