Twitching cock and balls estimmed and beaten to a hands free orgasm

I've been edging my cock with estim for awhile, now it's time to get down to business. I turn up the power box to make my dick twitch harder, then I grab the shaft to hold up my balls for more beating. The current pulses back and forth between my balls and turns my cock into one buzzing nerve ending. More beating and estim and my cock bounces as the cum flies out for a hands free orgasm.