HZGD-242, a beautiful, large-breasted stepmother who became his practice partner for sex and ejaculation after his first girlfriend.

The introverted and shy stepson finally has a girlfriend, making his wife "NAO" very happy. However, confused by the distance between her stepson and his girlfriend and their sexual behavior, NAO wants to teach her stepson about the female body and sex. So, she teaches her stepson how to lose his virginity! Afterwards, she makes love to her lovely stepson every day, and they gradually fall in love...!