The stepmother is tormented by jealousy toward her son's girlfriend, writhing in anguish as if her chest is being crushed. One day, she resolves to make him hers completely, determined to claim her son as her own. Deep down, she feels she's far superior to that girl. In truth, she's well aware she's a dirty, lustful woman. Unable to suppress these desires, she finds herself craving to suck him more intensely, to stroke him harder.