A Prineville man is facing charges after his roommate reportedly saw him having sex with her dog, Duke, with his bedroom door open.

Ricky Earl David Cook, 41, was arrested this month at his roommate’s family home, where he rents a room. He was taken to Crook County Jail, where he remains on $15,000 bond.

His roommate called police about 10:40 p.m. March 1 to report she’d caught Cook having sex with her dog. As she walked by Cook’s room, she saw him on his knees with his pants off behind the dog, according to a search warrant affidavit filed in Crook County Circuit Court.

After she responded in surprise, Cook reportedly sighed and said, “What? My pants were up and the dog got on top of me,” according to the affidavit.

Police arrived and Crook County Sheriff’s deputy Jordan Friese noted in a court document that the dog — a 6- to 7-year-old male malamute — was roaming the home and “appeared to be nervous.”

Friese interviewed Cook, who claimed he’d been sitting on the floor of his room, looking at his phone when Duke had attempted to mount him. Cook said that at the moment the roommate walked by, Cook was trying to push the dog off him, Friese wrote.

“His explanation did not make sense,” Friese wrote.

Cook said the dog tries to mount people “all the time.”

“This seemed like Cook was attempting to blame the dog for trying to hump him and did not sound reasonable,” Friese wrote.

Cook reportedly appeared nervous under questioning, chain smoking and rarely making eye contact with deputies.

He asked police if it was illegal to have sex with animals.

“Cook said he was from Washington and wanted to know if it was illegal in Oregon,” Friese wrote. “I notified Cook it was illegal to have sex with animals in Oregon.”

While examining Duke, Friese noted the large dog appeared nervous and “traumatized.”

DNA samples were taken from Cook and his cell phone seized to look for pornography involving animals, according to court records.

On Thursday, Cook was indicted in Crook County Circuit Court on one count of animal sexual abuse and, for content allegedly discovered on Cook’s phone, one count of encouraging animal sexual abuse.

Animal sexual abuse is a class C felony, and if convicted, Cook must register as a sex offender for life.

Cook had lived with the woman, her husband and daughter for four years. The woman told police she’d had no issues with him before the incident.

“She reported she could not believe what she had just observed,” Friese wrote.

— Reporter: 541-383-0325, gandrews@bendbulletin.com