A married couple living together, Maki and her husband Tetsuya were having some marital issues due to their daughter's lack of sexual experience. However, one day when they discovered that their son-in-law had secretly ordered a nipple stimulation service for his wife... Maki found herself unexpectedly aroused by the sight of him enjoying himself. In order to improve their relationship, she decided to join in on the fun and started teasing and playing with Tetsuya's nipples. As he responded enthusiastically, Maki couldn't help but become more turned on herself.
