After Rieko's husband passes away, she lives with her daughter and her husband. - It's been several years since I came here, and I've finally gotten used to things and started living a calm life. - One day, my eyes fell on the plump crotch of my son-in-law. - It's surprisingly large. - It's so big that I wonder why I didn't notice it even though we were living together until now. - Rieko was surprised by herself. - From that day on, I couldn't help but worry about my son-in-law's son. - When her daughter happens to be out and her son-in-law is taking a nap, Rieko can't help it anymore and ends up playing with her son-in-law. - As Rieko had expected, the penis had a hard and lustrous erection, and Rieko couldn't help but let her tongue twitch as it twitched with the flowing blood. - After playing with it for a while, it violently releases cloudy liquid into Rieko's mouth. - Rieko took it all in and remained dazed for a while, savoring the taste in her mouth.