A man who filmed his partner having sex with their pet dog has been jailed for five-and-a-half-years. 

Graham Marshall, 39, had “perverted” sexual fantasies that drove the abuse of his dog with partner Paige Reaney, 33, Sheffield Crown Court heard today. 

Marshall called Reaney “mummy” when talking to the dog and described the videos the couples shared with each other as “so, so, f****** hot, it’s amazing”, a court heard. 

Judge Jeremy Richardson KC said: “In a professional life in the law covering 45 years, I thought I had encountered most acts of depravity. 

“This case is perhaps the worst example of a case of its kind that I have ever come across.”

Judge Richardson said he accepted there was a “level of coercion” when Marshall made Reaney engage in sexual activity with their pet pug, Charlie. 

He added that Reaney “went along with what was happening on a number of occasions” and “played [her] role to the full.”

Reaney admitted bestiality and animal cruelty at a previous hearing. 

She received a nine-month prison sentence, suspended for two years. 

Marshall admitted the same charges, as well as possessing child abuse images, possession of extreme pornography and voyeurism.

A vet said that Charlie would have been in distress when forced to indulge in the acts, a court heard. 

Judge Richardson said: “The dog has suffered due to the abuse of it by two human beings to a state of learned helplessness.”

Marshall was subjected to sexual abuse as a child, including bestiality and has been living in a tent in the woods, a court heard. 

Judge Richardson told Marshall: “You have indulged in a vast array of different acts of sexual deviancy of a very serious kind.”

He added: “You have deeply ingrained harmful sexual perversions within your character which embrace serious criminal conduct.”