The seat backs weren’t the only thing upright in a full, upright position on a recent United Airlines flight between Spokane and Denver.

A guy got arrested for masturbating on the flight.

The Smoking Gun, via Gawker, has the horrific details of how Kyle Pearce, 25, got down to bidness when the plane was in the air.

An 18-year-old girl seated across the aisle from Pearce told investigators in a written statement, “I sat next to a man on a plane who was masterbating [sic]. I heard a noise and looked over and saw his penis.” Wait. There’s more: “He ejaculated & got some on the seat. Then he went to the bathroom for a long time.”

Wait. There’s more, from another witness:

“My friend Zach turned to me and said, ‘That man is masturbating’ and in disbelief, I looked and saw his penis and he was…I hit him with my book in the arm, which caused him to stop and leave to the bathroom.”

Does this count as his membership in the Mile High Club, or is it just an auxiliary membership?