In a dimly lit dungeon, Mistress Eve commands her submissive to his knees. She slowly circles him, her heels clicking on the stone floor, her eyes locked onto his crotch. "Today, we explore the limits of your endurance," she purrs, her hand caressing the ball gag in her other hand. She pushes it into his mouth, securing it tightly. He groans, and she smirks, "That's right, pet. You'll be screaming soon enough." She begins to squeeze, her nails digging into his flesh, his balls swelling in her grip. He whimpers, but she just smiles, "That's just the beginning."