“i can only ask my mother… hey? isn’t it okay? hey!” koji, who was d by her for not being good at sex, asks her mother, yumiko, to be a practice table. “okay… but only once instead.” yumiko gives in to koji’s enthusiasm, who refuses several times but doesn’t give up. “you can’t do it… please stop!” although she resists the unforgivable act, yumiko’s caressing caresses gradually bring changes to yumiko’s body and climax many times.
