Len, the rooster, finds himself in a taboo predicament as he awakens to the alluring scent of his sister, Em Gai Ruột, in the early morning hours. Her body, naked and inviting, stirs something primal within him. He mounts her, his hard cock eager to claim her virgin territory. As he slides into her tight, wet pussy, she moans softly in her sleep, her body arching to meet his thrusts. Len, driven by lust, fucks her relentlessly, his cock swelling within her as he nears his climax, filling her with his warm, forbidden seed.