Now its time to experience some serious pain for my slave. I make him lie down on the floor with his feet in the air – and his legs spread – this way he cant protect his cock and balls when I step on his groin. Im starting to trample his cock and balls with my black flats – even though theyre flats, they have a hardened heel and theyll cause some serious pain 🙂 After a while I take off my shoes and continue to trample his groin under my bare feet.