an elegant and beautiful 50-year-old mother, deeply in love with her eldest son, YUKIO, shows her twisted affection by having him lick her breasts and pussy, enjoying the forbidden pleasure. Seeing the 50-year-old mother and her brother's act, the younger brother, SHINJI, becomes jealous and seeks his mother's love and body. The 50-year-old mother, with her fully ripe pussy wet from SHINJI's intense actions, reaches orgasm multiple times and, driven by her twisted love and lust, eagerly takes in his huge cock and enjoys their union.