Takuto, whose own thing is too big and has been repeatedly refused intimacy by his wife. Recently, he had been calming himself down with masturbation, using av or his mother-in-law, Mary, as his side dish. At such a time, Mary, who had always been dissatisfied with intimacy with her husband, became interested in his too-big dick... Whenever she had a chance, she would serve him with ejaculation, making excuses that it was instead of her daughter. Takuto, who had become accustomed to the unrestrained mother-in-law's sexual processing, became unable to be satisfied without her body...