Donatelo's eyes widen at the sight of Luigi's monster, and he wastes no time in mounting it. He grinds his ass onto Luigi's stiffness, gasping as it fills him completely. Donatelo's smooth skin flushes with pleasure as he rides, his own cock leaking pre-cum onto Luigi's abs. Luigi grabs Donatelo's hips, thrusting upwards, fucking him harder and faster until Donatelo's moans echo through the room, his hole clenching around Luigi's pistoning cock.