The daughter and her husband both work, so they're busy and fight more often. Fumino's couple got worried and invited the daughter and her husband to live with them. One night, while Fumino's couple was having sex, the son-in-law sneaked back home. When he peeked through a gap, his eyes met Fumino's. The next day, his daughter and husband both went out, leaving Fumino alone with her son-in-law. Fumino whispered in her son-in-law's ear, "Remember what you saw last night?" Her son-in-law was flustered and looked down, embarrassed. The son-in-law's crotch grew large, and he couldn't hold back any longer, pushing her down. Fumino gently accepted it...
