A mother and son who have been having incestuous sex on a daily basis proudly film a commemorative sex session to confirm their love for each other! However, there is another big dick that is stronger and more entrancing than the son's! The mother's vulgar ahegao face that he has never seen before, and the mother screams in front of her son, "This is the first time I've ever seen anything like this!" The love between parent and child vs. the compatibility of dicks! The mother's true nature is revealed.