In the quiet of the night, following her wedding, a curious sister can't help but sneak into her brother's room. His gentle snores fill the room, but she's drawn to the tented sheets. She tentatively reaches out, touching the hardness beneath. He stirs, waking to find her hand on his throbbing cock. Embarrassed, she tries to leave, but he stops her, his voice hoarse with desire. "Stay," he whispers, "it's our secret." She hesitates, then agrees, letting him guide her hand, teaching her how to pleasure him. Their forbidden game continues, their heavy breaths echoing in the room.