Beating off with metal and DC current

I've got 3 stainless steel sounds and a couple of estim boxes. The current is hooked up to my nipples, cock and balls, sending everything twitching. Precum is flowing as I slowly work my urethra into spasms of pleasure. I pull my cock open and push the rods in and out as my urethra throbs. Finally I can't take anymore and my cock twitches and pulses as I orgasm hard.