Darling, let me touch you. (слэш)

Steve is showering two heads away from the one Tony had occupied earlier. The water darkens his blond hair, cascading down his back in tempting rivulets that travel the dips of his muscles. His skin gleams under the water, slick and wet. And that is enough to stop Tony in his tracks, it is. But what really twists his tongue in his mouth, is the way Steve has his head thrown back, hands on his chest, firmly massaging his pecs.