A rapist videoed himself sexually assaulting his sleeping victim.

Kiefer Ewers, 26, even showed the woman the video footage of him carrying out the assault.

And when police specialists analysed his phone they found other footage and photographs taken of his victim either when she was asleep or when performing private acts.

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Ewers claimed the woman was the one who suggested he place his genitals in her mouth while she was asleep and had videoed it in order to demonstrate what he had done.

The Woodstock man, of Shipton Road, was found guilty last week of rape, sexual assault by penetration, causing actual bodily harm and voyeurism. He was cleared of other charges of sexual assault and voyeurism.

Bailing him to return to Oxford Crown Court on March 3 for sentence, Recorder John Ryder KC said: “In adjourning this matter for sentence, I am not indicating for a moment you will not be dealt with by a sentence of immediate imprisonment, Mr Ewers.”

He asked the probation service to consider whether the defendant posed such a risk to the public that he should receive an extended sentence.

During the trial, the jury was told the woman woke up on occasion to find bodily fluids on her.

On another occasion she said she had woken to find Ewers with blood on his hand. The woman, who was on her period, formed the view that he had sexually assaulted her while asleep.

Ewers had also attacked her while in her flat, punching and headbutting her.

Closing his client’s case to the jury, James Hay claimed that the victim had been able to ‘weaponise’ the video material.

The defence barrister added: “It’s very difficult for him to defend himself because the emotional reaction to those videos are going to be burned in your mind and make you overlook her admission she was prepared, content, happy even to give this sort of thing a go.”

Mr Hay acknowledged that Ewers was ‘perhaps a little trigger happy when it came to his camera’. He claimed: “She knew full well what he was like.”

Welcoming the conviction, officer in the case DC Martin Whaley said: “Over a period of years, Kiefer Ewers pursued a campaign of horrific abuse against his victim, all for his own selfish gratification.

“It has been a lengthy and difficult process for the victim, and I commend her bravery in supporting the prosecution.

“I hope this conviction goes someway in giving victims the confidence to come forward to the police.

“Thames Valley Police and the Crown Prosecution Service are dedicated to tackling the scourge of violence against women and girls.

“We take all complaints seriously, and where the evidence is available, we will seek to prosecute offenders.”