Tsubasa lives with her husband's father, his father-in-law. We were able to live in harmony with each other. One night, Tsubasa was working hard on the couple's activities. However, my husband was originally weak in that, and I fell asleep before I was satisfied with Tsubasa this time. Tsubasa had no choice but to comfort himself quietly. Tsubasa, who was sleeping at midnight, was able to bounce off the futon due to the discomfort of his lower body, and his father-in-law was playing around with Tsubasa's lower body. I am surprised and try to make a voice, but my mouth is closed and I am squid with a hand man saying that my son can not be satisfied. And Tsubasa was squid again by a violent piston that is incomparable to her husband. After that, my father-in-law took a chance to caress Tsubasa and led him to the climax. Tsubasa, who became a sexual captive by an act with his father-in-law that he had never tasted before, finally headed for his father-in-law's bedroom on his own initiative.