A few years after their divorce, Kyun and her only son Masao have been living together. One day, they finally had some financial breathing room and decided to move out of their cramped, rundown one-room apartment. Kyun and Masao were thrilled with the size of their new home. Secretly maintaining an 'incestuous' relationship, they wanted to have sex freely in this spacious house. And so, on that night, there was Kyun, orgasming more intensely than ever on Masao's dick...
