As the step-siblings drifted off to sleep in their bunks, the little sister, eager to experience the forbidden pleasure of her big brother's cock, snuck into his room. She trembled with anticipation as he lay sprawled out on the bed, his morning wood poking against the fine mesh of his boxers. With a sly smile, she crept closer, crouching down to whisper in his ear, "Hey, big brother. Wake up." Wake up.