A mother with a 4th grade son makes her second AV appearance, saying, "I don't want to end my life as a woman like this." Matsumoto-san has never had an orgasm from a dick before, so we stimulate her undeveloped vaginal cavity and bring her to her first internal orgasm! Her hips tremble with intense pleasure, and she can't stand up... A secret day in which she greedily seeks dick, blushing at her embarrassment.