A married woman prison psychologist who sent a young killer "pornographic" letters" containing her sexual fantasies about him, has been struck off by her professional body.

Trainee psychologist Nicola Millward wrote steamy letters to the prisoner at Swinfen Hall, Lichfield, over a ten-month period after she discovered her husband was having an affair, the British Psychological Society was told.

On one occasion she told the young inmate, referred to only as prisoner X, how she "nearly orgasmed there and then" when he touched her hand, it is claimed.

She later began a relationship with another member of the prison staff, leaving the young man with "suicidal feelings". Later though she contacted him again in another prison and continued to see him, the panel heard.

Although not present for the hearing, Millward admitted allegations before the BPS Disciplinary Committee that between August, 2005 and May 2006 she brought the profession into disrepute and failed to ensure the patient's welfare.

Announcing her striking off, panel chair Philip Partridge said: "The committee takes a very serious view of the conduct of Ms Millward. She displayed a lack of insight and judgment on the effect on the prison and a very vulnerable young man.

"Also, she did not acknowledge what she did was harmful and the only appropriate sanction is to expel her from membership of the society."

Yvette Genn, for the society, had told the hearing that Ms Millward had "exploited the relationship of influence and trust which exists with a client in order to further the gratification of her personal desires".

Ms Genn said: "Ms Millward also gave the prisoner letters divulging personal information about herself and letters of a personal and sometimes intimate nature to him. He was a young man incarcerated in prison with no access to women."

In one letter she described how she wanted a "night to remember" with him.

Discovery came when the prisoner was found reading one of her letters and an investigation began. She went off sick with "depression" and described her conduct as an "error of judgment".

She said she should have taken time off when she discovered her husband's affair but instead "threw herself into her work".

Prisoner X was jailed for life at 18 after killing a member of the public in a "stranger-crime," and was aged 22 at the time the letters were discovered. Millward was 27. :