Mistress Kelly knew that this guy wanted to cum. But instead of cumming, the mistress made him feel pain he had not felt before. And he felt all of it as she used her boots to kick him in the nuts and she did so repeatedly not caring what the guy felt. He learned his lesson the hard way and that is how he ran away never to see her again.
Alex and Teodora mean business when they get their slave with his hands tied behind his back and a mask on. They show him no mercy whatsoever when they proceed to start kicking him in his balls, and they mean business since they have their high heels strapped on. It does not take long before this poor guy is on the ground, writhing in pain after a having received one hell of a ball thrashing.
When she gets home, there is nothing that relaxes her more than kicking her slave in the balls. She walks in and kicks him in the balls before she takes her jacket off. She makes sure she keeps kicking him because she loves to watch his face contort with pain. When he finally lays down, she kicks him still. She is beginning to feel better but she kicks because she likes it.