Painful Slave Training in Tight Bondage

First, I stuff a gag deep into my slave's mouth and tie him up in a very tight and helpless bondage, so that I can use him as I please. After ruthlessly strapping him down, I start by pinching and biting his nipples, before taking a Wartenberg wheel. I take big delight in rolling the small spikes up and down his nipples and armpits with a lot of pressure. His dick and balls are up next I present him my meat tenderizer and use it to strike his balls, until the skin turns completely red. But that's not enough. I want him to really feel me today. I stand with my full weight on his chest and hit his face with my feet. Of course his balls are next to get kicked! Since my slave arrived unprepared and anally unclean at the studio today, I finish by rubbing red Tiger Balm onto his cock. I shove my lubricated finger into his dirty asshole, making him feel the intense burn deep inside of him.