Bruce clutches him like he can pull them closer together, crest of the slow build over the past half hour having crept up on him-- suddenly he can't get enough of the other man. His breath hitches as Clark presses against him, his hands dragging down his back to knead his ass and urge him closer, more, so they can just rut and rub against each other. "Clark," he breathes against him. "Kal."