"Are you ready for the best orgasm you've ever had? I'll make it special for you."
After hours of denial of course he was, even if his balls were still a little bit in pain, it was fading quicker than he expected.
"Let's get you ready!"
Kathy went to the wall to grab some items. What did she need? All he needed now to cum was (even a light considering his state) stimulation to his shaft.
She came back with her hands full, which made Eric fear that they didn't share the same vision about what making a male cum was.
She showed him a rubber back device which was really close to a set of testicles. On top of it was a rubber ring. Two metal pieces were pointing on the underside. She didn't tell him anything, he felt her sliding the ring part of the device on his penis. She then manipulated his balls, to insert them in the rubber testicles shaped part. The pouch was a little tight for his balls but not uncomfortable as the rubber was rather stretchy, and sticking to his scrotal skin.
"You balls are still very slick and silicon lube is really a pain to clean, so I can't fix the pads directly on your balls. But this little sleeve will do the job!". Pads? She meant electrodes? She was really about to send electrical power through his genitals?
"Don't worry, it's just to add some stimulation. I wonder If I should also use the prostate stimulator."
Eric didn't need more stimulation! All he needed was her to stroke his dick! Wait? did she say prostate?
"Judging your reaction, I can tell you never had something inserted here, do you?"
Eric nodded a no and a "please don't" could be read in his eyes.
"You must try it! We'll dot it. I was never able to experience it myself of course but all the guys I've played with seemed to enjoy it very much. Oh my, you're in for the ride of your life!"
Eric briefly wondered if the guys she was talking about were willing or rather like him, restrained and forced to endure everything she had on her twisted mind.
She went to the dildo wall to grab a small one. She showed it to him. It was small but had an electrical connector. She took another bottle of lube and rubbed it on the dildo. She then moved between his legs except this time she aimed lower. Eric tried to close his bowels to prevent this from happening and a squeeze on the testicles sleeve quickly quieted him. She had put enough lube for the small dildo to slide in his rectum easily and soon it was making contact with his prostate. Eric was terrified by this new feeling he never had before. The end of the dildo was protruding between his ass cheeks, stretching them a little bit.
"You see, it was not that terrible. Now the only thing I have to do is plug everything and we're ready to go!"
She stroked his cock a bit before taking care of the wiring.
Three minutes later everything was plugged and Kathy was again sitting between his legs.
She turned every dial on the generator to 0 and turned it on.
"Let me explain. This sleeve sticking to your balls has lots of small electrodes inside. It allows the power to flow right in your balls, from side to side or if I choose it though your balls and to your prostate. It can also go to your penis due to the ring. I can define the level and frequency of stimulation, it can go from light tickling to awful pain. But we're here for you to blow your load now, so we should stay to low levels. Get ready for take of". She turned a dials and Eric felt a buzzing in his balls. She turned another dial and a light tickling began on his prostate. There was no pain this time, in fact it even felt pleasant. Those devices were now stimulating him and his cock went rock hard again if it had even softened.