The slave starts out tied to the wall, cock and balls right there for Goddess Tangent to do what she does. But that is just the appetizer. Soon she has the slave tied on the floor, with his cock and balls locked in a wooden block, so vulnerable, so ready for our Goddess to torment the hell out of his most susceptible parts. She taunts him as she's stomping his cock and balls, and then takes some time to make him worship the feet that have been causing him so much pain.