I have my slave bound by heavy rubber belts, nipples clamped tightly and breathing controlled through a gas mask. His cock can't help but get hard under my control, and with a full set of rubbing alcohol soaked urethral sounds, he's about to regret that.
I fuck his cockhole with the steel rods, the burn of the alcohol adding to the pain of having his urethra stretched and fucked.

xoxo, Cybill Troy