I've brought my electro toys to a session before and let te dominatrix observe while I encirle my sac with a band, connect it to the PES box before slipping the electro urethral probe down my slit and hokking it up. I'd think a lady of power would find it very exciting to be in control of the box and make me gasp and flinch until she presses the cycle button to finish off my orgasm. Of course, I'd be heartbroken if she didn't call time outs so she could have me service her parts for her most important pleasure and release as well! After all, my Dominatrix must be the first to cum!
I love medical play prostate sounds anything the Mistress would like It is really hot with 2 Mistress. Another is a Mistress and a new student mistress.