Incuming75, a seasoned solo explorer, delights in the art of urethral sounding. With a glistening metal rod, he carefully inserts it into his urethra, the cold, smooth sensation sending shivers down his spine. He pushes deeper, the pressure building, as he gasps in pleasure, his cock throbbing in anticipation. With skilled precision, he twists and turns the rod, stimulating every nerve ending, before gradually withdrawing it, leaving him panting and satisfied.