Emergency incest: It turns out that her son, who was married, is still a virgin! A mother in a panic decided to teach her sex with her own body! !

Eri finds out that her son, just before marriage, is a virgin, is a surprise virgin. "But there's someone else I've been with before. Have you ever done it once?" If things continue like this, a smooth marriage will be in danger. "There's no date until the wedding. What on earth will I do?" Eri, feeling anxious about her son's future, decides to practice sex with her own body in order to give her son even the slightest experience.