A ménage a trois went from pleasure to pain for one North Dakota man after he allegedly was stabbed by another man in the threesome after he refused to switch positions during the sex act.

Orlando DeWitt, 37, was stabbed in the arm Feb. 8 during the tryst when the other male participant in the ménage a trois, 33-year-old Ashley Hunter, became enraged when DeWitt wouldn’t let him have sex with the female participant.

DeWitt and Hunter were friends who met in prison and were partying with several female acquaintances Friday night at a bar in Fargo, N.D., when they went to Hunter’s home to continue the party with a woman.

According to court documents obtained by The Smoking Gun, DeWitt was having sex with a woman named Leticia while she was performing oral sex on Hunter.

“Hunter then asked to switch places with Orlando,” the Fargo Police Department report stated. “Orlando told him no and Hunter became upset.”

An argument ensued, with DeWitt allegedly calling Hunter a “f----- retard.”

DeWitt said Hunter threatened to kill him and said Hunter reached for a 12-inch knife. DeWitt and Leticia fled to a bathroom naked while Hunter ran after them while holding the knife.

“Orlando said he decided to run for the front door,” the police report goes on to say, according to The Smoking Gun.

DeWitt tried to flee the home and was able to get through the first door, but when he “went to open the exterior door he felt the knife cutting the back of his left arm.”

DeWitt was not seriously injured in the stabbing, the website reported. He used Leticia’s phone to call 911.

Hunter is scheduled to appear in court March 13 to answer charges related to the stabbing.