In a cramped apartment, Christiane, a leggy brunette, is startled when her brother, Jean, bursts in, catching her mid-masturbation. She's sprawled on the bed, fingers buried in her wet pussy, leg hooked over her knee, revealing her glistening snatch. Jean freezes, his eyes locked on her pink slit. Embarrassed, Christiane tries to cover up, but her brother's gaze is unyielding. He takes in her heaving breasts, hard nipples, and the scent of her arousal. She's mortified, but her body betrays her, throbbing with desire.