The mother, Seiko, and the son, Takeshi, are very close to each other as a parent and child, and they confirm their love with words. One day, I witness my mother handing money to a pimp. Three people talk, but he gets angry and binds his son and commits his mother in front of him. My mother who was hesitant at first started to let out a sigh and stopped resisting. The feeling of being fucked in front of my beloved son stimulated my sexual desire and brought me climax pleasure.