Bound and completely vulnerable, I run my hands up and down his body, up and down his cock, lulling him into a false sense of comfort. I smile at the camera, enjoying every minute of this game. I'm waiting for the moment that I can feel his trust, when his hard cock betrays his fear, that's when I start applying the pain to his balls. Grabbing them up in each hand, squeezing on that perfect, delicate center and pinch down. Shooting waves of sickness up into his stomach, testing this body for subservience. Switching rhythmically between stroking and rough squeezing, keeping beat to the music. I slowly, ritualistically tie his balls up with rope, isolating them from his body while providing myself with a lovely tether. With my body, this rhythm and a bit of time, I intentionally lull him into the false idea that this is the worst of it, with no words, just my touch. This is just the gentle testing time, perhaps that's why I can't stop smiling menacingly at the camera. I finally allow him to cum around 8 minutes in. I hold his cock down towards the camera and let the steady, thick stream of built-up cum simply drain out on it's own. You can see on my face that we've now begun. The next five minutes I continue to torment his tender balls, stroking his ultra sensitive cock, scooping his testes up and beating them to the rhythm of the song. I hold his legs down as he tries to protest and continue my beating. He cries out in pain and I smile and laugh while I push his legs back down into position, placing my body weight on top, maintaining access to those tender balls.