Hands tied up, ?Euryale’s sub is kneeling in front of her in the dungeon. A collar and a leash around his balls, connected to a chain hung to the ceiling, maintain them exposed to her sight. He understands soon enough that Euryale wants to use her heavy rope on him for ballbusting.

She will smash his balls non stop with this heavy rope, spinning it faster and with more thrust, until he begs her for mercy. But his suffering has no effect on Euryale, as she is more and more entertained by his crying and the pathetic look of his balls. The more he cries, the more she smiles...