Maiko lost her husband at an early age and raised her young child Kousuke on her own. But as her son began to resemble her beloved husband, her body was writhing with secret desires that she continued to vent alone. Kousuke also had a love for his girlfriend's mother that was more than family, and they spent their time hiding their feelings from each other. And then, finally, on the eve of her marriage to Kousuke, she said, ``Just tonight, for the first and last time...'' and touched his cock with her loving hands.