Juri is plotting to spend a hot night with her husband like when they were young. After exercising with her husband and touching each other's bodies, they had sex for the first time in a long time. After that, they were able to have sex after exercising, but after a few weeks, they didn't have sex again. Then, her son asked her to teach him how to exercise because he was worried about his stomach. When they did balance ball exercises together, her son became excited by his mother's voluptuous buttocks. Juri noticed this and invited her son to give her a massage...