After Maria and her daughter and son-in-law got married, they lived together as a family of three. Maria had noticed her son-in-law's constant gaze on her breasts. She figured it was just a man's nature, so it couldn't be helped, but it had been bothering Maria. One day, when she went to her daughter and son-in-law's room to clean, she found her son-in-law masturbating while looking at a porn magazine. Seeing this excited Maria, she couldn't resist, so she went back to the living room, masturbated, and fell asleep. Then her son-in-law came in...