First time I got pinned was by a buddy in high school. I lowered my shorts down on the one side and then was laying down. He kept saying "don't flinch" but as soon as the needle touched my ass, I flinched and squeezed my ass cheeks together. This made him start laughing while he was sorta trying to keep the needle still. By the time he got done, the fucking needle looked like a fish hook and I couldn't sit on that ass cheek for 2 weeks. It was the last time I ever let anyone else do the pinning for me.