A Pearl in the Dungeon

Within the dim confines of Mistress Katy's dungeon, what role does the glistening Sapphire assume? Honestly, we pay it no heed. In this chamber of desire, every action unfolds according to the whims of the Mistress. Soon enough, Sapphire Radiance will comprehend this reality firsthand.
Bound, paddled, her voluptuous spheres subjected to clamping, her sensitive nub haltingly pressed, and her pink tips firmly twisted, the enchanting blonde Sapphire will yield before long. Succumbing to the Mistress's directives, Pearl Diamond obediently embarks on every task presented to her.