I noticed that my slave loves to feel my high heels on his body, while I was playing with my hands on his cock, I started to stick my high heels into his belly and the more I did this, the harder he got. Of course, I didn't let him cum and the closer he got to coming, the more I stuck my heels in and stopped jerking him off with my hands. Slaps on the balls and dick are useful to prevent slaves from cumming without our permission.