A TEENAGE girl described today how she saw a hospital doctor "feel himself up" while on her way to school.

The 13-year-old told Cardiff Crown Court she recalled seeing a dark-skinned man sitting in a parked car moving his hand up and down in May last year.

A man fitting a similar description was seen on four other occasions allegedly masturbating close to a secondary school in Bridgend, between October 2007 and July 2008.

Police eventually arrested and charged Krishnasamy Sangameswaran from Bridgend with five counts of outraging public decency after a number plate provided by one witness matched his Toyota.

The 33-year-old employee of the University Hospital of Wales, Cardiff, denies the offences.

In a recorded interview with South Wales Police from September of last year, the witness, who was aged 12 at the time of the incident, said she was on her way to morning lessons with some friends when she came across a man sitting in the driver's seat of a silver car with his window down.

She said: "I saw a white tissue on his lap and he was just moving up and down....like a bounce."

When the interviewing officer asked what was moving, she replied: "His hand."

She said his hand was clenching a tissue at the time. She added: "He was feeling himself up."

When the officer asked whether she saw the man's penis, she replied: "No."

During his opening yesterday, prosecuting barrister Hywel Hughes said the defendant had conceded being in the same area of the alleged offences "two or three times" before but only to assess the merits of the school in question.

He also said he had a habit of shaking his leg which might have led to the girls mistakenly thinking he was masturbating.

Mr Hughes added: "What the crown say is that on each and every occasion it was the defendant present at the location.

"He was masturbating in an area where he could have been, and was seen, by children going to and from school and we invite you to say that actions of that kind in which the girls explained are clearly capable of outraging public decency."

The case was later adjourned and will resume tomorrow.