Pressing the muzzle of a gun to his 50-year-old wife’s head and pulling the trigger while they were having sex apparently was a major turn on for an Oklahoma man—until the gun actually fired and killed her. At least that’s the story husband Arthur Sedille, 23, is giving cops. The couple didn’t realize the gun was loaded the very last time they were having sex, he told police. Sedille immediately dialed 911 but it was too late to do anything. He’s being held on suspicion of first-degree murder, but no formal charges have yet been filed, and police are continuing to investigate, CNN reports.