I put on my old worn out smelly mules on a wooden sole to tread my slave. I crushed his balls showing the inside of my feet and as always I was putting all the weight on the genitals. I got a little irritated by rubbing the hard hard sole of his boots along his cock and then pinched his cock between the tops of my flip flops. After a while I took off one shoe and, by my own foot, dressed in a black stocking crushed my slave. He probably waited for it, because soon after that he finished at my feet.