My friend's amazing mom completely drained my essence... (Isshiki Momoko JUL-403)

Momoko Isshiki is strict with her son, Yosuke, hoping he'll become as docile as her husband, but Yosuke just can't seem to get into his studies. Just when she and her husband haven't had sex in a while, she sees porn in Yosuke's room and her lust flares up… Yosuke's friend, Atsushi, happens to be visiting and witnesses her ecstatic state. Instead of being scolded, he's instead allowed to play with his penis…