With a cruel smile, the Mistress takes her slave's caged cock in hand, her long nails clicking against the iron bars. She works her hand up and down, the cage preventing any satisfaction for the helpless sub. She leans in, her breath hot on his ear, "You'll learn to love the denied pleasure, pet." She pushes a nail against the pee hole, causing him to gasp and buck. She chuckles, "Such a sensitive little toy." She continues her relentless teasing, his moans filling the room as she reduces him to a quivering, desperate mess.