In the quiet of their shared room, the brothers' inhibitions fade like the fading light. The older brother, his voice a low rumble, commands his sibling to turn around, to present himself. The younger complies, his breath hitching as he feels the older brother's hands grip his hips, pulling him back. The older brother's cock, thick and uncut, presses against the younger's ass, seeking entrance. The younger gasps, his body tensing before relaxing, allowing his brother to push in, inch by inch, filling him completely. They move together, a dance of raw, unbridled pleasure, their bodies slapping together, the sound of their flesh echoing in the room as they indulge in their forbidden lust.