We've been married for 20 years. - One day, Momoko, who doesn't have sex with her husband, encounters her daughter's attempted sex act... - Momoko is confused but secretly envious. - At that time, I received a consultation from my daughter's boyfriend, Yuta... - Apparently, Momoko hears that his penis is too big and can't fit inside, so she can't resist and accepts his penis as a test, saying, ``It's only the tip.'' - Momoko remembers the pleasure of being a woman as she experiences vaginal stimulation for the first time in a while. - When Yuta presses her again, her rationality is blown away, and she only seeks the pleasure of the cock...