Dominatrix is wearing rubber gloves and dealing with slave's ball sack by using a set of medical clamps
Cruel blonde is pushing steel needle into slave's penis not paying attention to the loud screams he is making
Cruel girl spread fat man sideways with cuffs and tormenting his exposed penis in any way she likes: beating up, tickling and clamping
Sharp spike-wheel is making a perfect torture combination with the tight steel cuff slave's balls are already locked into