A Shocking Ruining
Disclaimer: this tease makes use of an estim device. If you aren't familiar, do not force yourself to do anything outside of what you feel is safe. This tease uses language reoffering to a "max" strength, but because of the variance in strength of each machine, use your own discretion and set your max power relative to what you can safely handle.
Today your cock and balls will ache in ways you've yet to imagine. By the time we're done, you'll be entirely unable to even differentiate between the pleasure and pain of the sensations you'll endure. This of course, will come curtesy of our lovely estim unit...
Besides an estim device, you will also need to gather me:
Rubber bands, a cock ring, a ball gag, clover clamps, a pinwheel, a vibrator, and a condom.