Extremely thick incest. My son's dick is too big...

Season of encounters. Her son, Minoru, has found his first lover, but his mother, Chizuru, is worried. Chizuru, who had never been satisfied with her husband's small penis, thought that Minoru's penis was too small to satisfy her lover. One day, Chizuru enters Minoru's room with some juice, not knowing that he is masturbating... Minoru's erect penis is of a non-standard size. Since then, Chizuru has been unable to get Minoru's thick dick out of her mind, so she buys something...