A former Ysgol Dyffryn Aman pupil was caught pleasuring himself at 60mph, a judge heard today.

Liam Mann, 29, was driving no-handed west of Carmarthen when he overtook a woman motorist and signalled with his left hand for her to look at what he was doing.

Mann had pulled up behind the woman on the A40 dual carriageway..

He alerted her by blaring his horn and then pulled alongside when she slowed to work out what was wrong.

Ian Wright, prosecuting, told Swansea Crown Court it was clear what he was doing.

Mann sped off but the woman noted enough of his registration number for police to arrest him.

Mr Wright said the victim was so worried she still found herself constantly looking round for Mann's car.

Mann, of Green Park Terrace, Ash Grove, St Clears, was before the court for three offences of exposure and one of breaching a sexual harm prevention order.

Mr Wright said on September 5 he pulled up alongside a 13 year old girl as she walked alone in Llandeilo and beckoned her over.

She thought he wanted to ask for directions but as she approached she could see that he was touching himself.

She told him he was being disgusting and ran off. But Mann drove after her and pulled up in front of her.

She turned around and ran to the home of a teacher.

On October 8 he drove passed a female pedestrian in the centre of Carmarthen and pulled in to park.

As she walked passed she could see him sitting in the driver's seat with his trousers and underpants around his thighs.

Mr Wright said the woman tried to take a photograph on her mobile telephone but was in such a panic she could not enter the passcode.

The A40 incident happened just 10 days later.

Mann admitted exposure and the breach and was jailed for two years and four months.

Judge Geraint Walters said it was a troubling case.

Mann had been jailed in 2014 for sexually assaulting a female child and had taken part in a rehabilitation course. The sentencing judge had made Mann the subject of SHPO.

Sadly, said Judge Walters, Mann still had "many unresolved issue."

Mann was warned he would be on licence from prison until November 2023 irrespective of when he was released.