We would not want to hit something vital. Nerves or whatever.

[It's an unfortunate necessity to be slow here, and Pietro understands that. His concentrated effort to be still doesn't entirely work, a twitch here and there, but he can manage. He bites his lip as the needle pierces through, and it sends a warm spike of arousal down through his abdomen. He squirms again as Drake grabs the barbell.]

Something to distract me. Tell me about cock piercings.

[He'd considered that too, but hasn't done as much research.]