Juri schemes to spend a hot night with her husband like they used to in their youth. Thanks to exercising together and touching each other's bodies, they had sex for the first time in a while. After that, they were able to have nighttime intercourse after exercising, but a few weeks later, they went back to not having any. Around that time, their son said he was concerned about his midsection and asked her to teach him how to exercise. While doing balance ball exercises together, the son became excited by his mother's fleshy buttocks. Noticing this, Juri invites her son, saying she'll give him a massage…
