A young wife with only a daughter is curious about boys' masturbation habits. One day, she desperately wants to see her son masturbate, so she asks a mom friend who also has a son for advice. The mom friend readily agrees, saying, "Boys at that age are like monkeys. My son masturbates every night. These days, even if I suddenly open the door and see him, he doesn't hide it, and looks unconcerned. So I think my stupid son might show me." And...