Saori Konishi hasn't had sex with her husband for a while. One morning, her son Hiroshi is having a hard time coming out of the bathroom. Her husband says he has morning wood and is having a hard time peeing. In stark contrast to her husband, who can't get an erection anymore, Saori is curious about her son's penis, which is rock hard from the morning. When she stands her embarrassed son in front of her, her son's pajamas are stretched so tight they might burst...