I had thoughts of a nice fixation for my rubber slave. I tied him with wide spreaded legs so that I had easy access to his soft parts. Then he had to watch defenselessly as I tied off his balls, put on a sneaky mask, which I also fixed rigorously and then started my cunning game with him.
There was nothing he could do about it anyway.

I was wearing my favorite leather boots, which were pretty pointed. With that, I treated him properly. Then I put very pointed spikes under his balls. Then he shrieked a little louder - hmm, that's music in my ears ...