Total domination of small incompetent slave

I pull my chastity slave into the room on a leash. I'd like the boy to give my legs a good massage while I lean back in the chair. I slap him and tell him he will get punished if he doesn't do well enough. He begins working my calves with his hands but he is so weak and clueless. He has no idea how to make me feel good. I periodically slap him around with loud and strong hits for his incompetence. After 5 minutes of the worst massage of my life, I have to do something else with him. I slap him down, command him to all fours and ride him in circles around the room. I insult him for being so weak that he can't even carry me at a reasonable pace. He's so slow. I continuously whip him with the leash on his back and on his butt, adding to the stress of carrying a heavy BBW with so little strength. He falls down once and I whip him over and over, and tell him to get back up. He carries me for a couple more laps before collapsing to the floor. I kick him. This simply won't