In the quiet of his study, a silver-haired man unzips his trousers, revealing a cock that's seen decades of use. He's alone, but the room feels alive with anticipation. He lubes up a smooth, curved sound and places the tip at his urethral opening. With a deep breath, he pushes, feeling the cool metal invade his warm, familiar flesh. He groans, a mix of pleasure and nostalgia, as the sound disappears inside, his old cock throbbing with renewed vigor. The room fills with the sound of metal on flesh, a symphony of his solo pleasure.