In the dimly lit dungeon, a bound sub awaits her dominant's arrival. She's encased in a cruel chastity cage, the steel biting into her tender flesh. Her master approaches, brandishing a gleaming metal sonde, its tip glinting wickedly. He lubes it up, teasing her already soaked pussy lips before inserting it into her aching slit. She moans, writhing against her restraints as he twists and turns the cold metal inside her, stretching her, driving her to the brink of orgasm, but never letting her tip over the edge.