The son, who harbored a strong, lustful interest in his beautiful 50-year-old mother Reiko's voluptuous, fully ripened ass and ample breasts, one day catches a glimpse of her using a sex toy to pleasure herself, her big ass thrusting out. Witnessing his mother's femininity ignites his desire, and he can't help but squeeze her large breasts and devour her juicy, wet ass. Despite knowing the taboo nature of their act, the 50-year-old mother, consumed by intense pleasure, craves even more intense sensations, swinging her big ass and surrendering her full body to him!
