Rin is a single mother who is dedicated to her son's future. She dotes on her son and forbids him from having sex because it would affect his grades. But the one her son loves is his mother, Rin! Her son's lust is kindled over a trivial matter, and his cock becomes hard and attacks Rin! It's been a long time since they last had sex, and it makes Rin's body horny... And Rin becomes a lustful mother who is dedicated to her son's cock! With big tits and a big ass, dynamite and glamorous, a devilish body that will kill any man, and a beautiful mature woman you never get tired of holding, Rin Okae, shows you incestuous sex!