Son's lewd filial piety, mother-son's back massage voucher, Rika Honna, JUX-549.
8.6·2015·TV·AV
Akira, a teenage son, one day catches his parents having sex. Rather than being surprised at being caught, he desires to have sex with his own mother, Rika. After that, Akira, like a rebellious teenager, keeps his distance from Rika. However, he takes out a "help voucher" that he received from Rika when he was young, bringing the mother and son closer again. In gratitude to his mother, their filial act gradually degenerates into lustful behavior...
