In their dimly lit playroom, she commands him to strip, his cock already hard at the sight of her in her dominatrix gear. She lubes up a thin, gleaming catheter and, with a wicked grin, presses it against his slit. He hisses at the initial sting, but soon, pleasure takes over. She pushes it in, inch by inch, his cock throbbing in her grip. She twists it, watching his face contort with ecstasy and pain. She leans in, her breath hot on his ear, "You like that, don't you, my pet?" She pulls it out slowly, his cock aching for release. She jerks him off roughly, her hand coated in lube and his precum, until he's begging for mercy. With a final, hard stroke, she makes him cum, his body convulsing as he spills onto the floor.