Experienced slaves will eagerly give themselves a very shameless, humiliating spanking. You wont have to lift a finger. Like now. For a titillating humiliation the sub places a steel pot under the bench. You know that the subs position their cunts over such a pot knowing they will spank their own bare asses till they let go and pee in the pot, pee squirting from hairy cunts. Look, the sub starts reddening the ass keeping the pussy wide open. You see and hear how the pee starts dripping into the metal pot, and you can just imagine the humiliating peeing that would follow while the bare ass cheeks and meaty cunt flaps will tremble under the cane