A “dangerous” young Herefordshire man who watched violent pornography before ambushing and trying to rape a 15-year-old girl in Leominster has been jailed for six years.

Christopher Williams, aged 23, continued his attack even when the girl screamed at him that she was only 15, Worcester Crown Court was told.

Judge Michael Cullum told Williams he “stole” the girl’s youth – and said he was such a danger that, when eventually released from his six-year prison term, he would serve an extra three years on licence from jail.

Williams, of Ford Street, Wigmore, admitted attempted oral rape of his victim as she walked home from The Grange park in Leominster at 8.20pm on April 4 last year.

A victim statement said the girl was now so frightened that she no longer left her mother’s side and even slept in her bed.

Phillip (cor – 2 ls) Bradley, prosecuting, said Williams walked through a churchyard and joined the same footpath as the girl, who was listening to music on her mobile phone.

She sensed that someone was behind her and turned on her heel to find him in front of her.

He asked her for a light for his cigarette and she gave him a lighter but he failed to ignite it.

“He then grabbed her in a bear hug and took her to the ground,” said Mr Bradley.

The teenager was wearing two sets of leggings and Williams began pulling the outer pair to her knees before touching her intimately.

Mr Bradley added that the victim – who screamed that she was only 15 and “leave me alone” - tried to fight him and kicked him in the genitals.

But he pulled his trousers down and placed his private parts near her face.

She eventually managed to get to her feet but dropped her phone, which he ran away with.

She rushed towards her home “clearly hysterical” and came across a care worker, telling her what happened.

After police tracked down Williams, the teenager identified him as her attacker.

A pre-sentence report to the court said Williams had watched pornography before the attack, said Mr Bradley.

Abigail Nixon, defending, said Williams, who had taken cocaine, had gone out trying to buy cannabis.

The assault had been an “impulsive act” and not a deliberate attempt to attack a child, although she accepted he continued even after the girl told him her age.

Miss Nixon added Williams’s partner, with whom he has a child, was standing by him and he was otherwise a “family man, a good father and a working man”.

Judge Cullum told Williams: “You are a dangerous young man.

“That night you were fueled by cocaine when you left your partner and family.

“Possibly at some stage you decided to rape a woman.

“The fact is you decided to ambush what turned out to be a child.”

The judge praised the courage and presence of mind of the girl during the attack.

He added: “You accept you watched violent rape pornography.

“You have affected the life of your victim and her family for ever.

“You stole her youth – her ability to be carefree as a teenager – by trying to fulfill a lust for a power-driven attack.”

Williams has been placed on the sex offenders register for life.