After she had finished beating me she took a step back. I could not stand up straight because of the humbler, or move because of the rope around my knees. I looked up and she looked so beautiful in her wet look leggings and tight top. Despite that I just wanted to drop to the floor and cup my sore balls. "I am going to get a glass of wine", she said, "why don't you relax a bit until I come back". I felt so relieved thinking I could have some relief to my pain, but she had other ideas. She picked up the wooden chair that she had been sitting on in front of me and put it behind me. She then walked back in front of me and grabbing me by my hair pulled my mouth back up to her crotch wrapped in her shinny leggings. After a short while she said "That is enough" and pushed me back sharply. With my hands cuffed behind my back, my knees tied and my balls held between my thighs in the humbler, there was nothing I could do but fall back onto the hard wooden seat she had placed behind me.

Not too much of a punishment except i landed hard on my nuts held firmly out of the back of my thighs. After the initial pain I managed to adjust my position, and whilst my bondage basically meant i was sitting on my own balls I managed to adjust the position so it was not to painful.

However my GF soon returned with her glass of wine. After looking at my and my evident discomfort with some ammusment she came to me, and sat on my lap. I had a beautiful girl straddling me, but her weight was squashing my poor testicles on the wooden seat I was sitting on.

As I gasped in pain she said "Silly me, I forgot something so you will really remember tonight." She then got the fly zapper and wriggling her self to cause me more discomfort continued, " The way this works is it has an accumulator. It stores the charge from the battery until the voltage is high enough and then gives out the zap. I think that happens about every 5 seconds. I have been wondering how long the battery would last." She smiled at me and got off my lap. I was relieved that some of the wieght was off my balls.

"This is the experiment I have thought of to see how long the battery will last" she said with a smile. Then grabbing me by the hair she pulled me up slightly from the seat and quickly put the zapper under me before pushing me back down.

I was now in a position with my hands cuffed behind my back, my knees tied together and I was sitting on my balls held between my arse cheeks in a humbler on top of the bat like device. "Oh I have not turned it on" she said and then did so. The first electric jolt hit my balls hard and they kept comming every five seconds or so. The worst thing was that each jolt caused me to jump in the air, but come back down and squash my nuts on the electric wire.