Nanami cannot wait until next summer for her long-awaited trip to Hawaii, so she puts on a swimsuit to enjoy a little tropical fantasy at home. Her adult son walks in and is stunned by her enormous breasts, voluptuous figure, and dangerously revealing bikini. Trying to hide his excitement, he offers her an oil massage. It is his first time touching his mother’s sensual skin, and before long the massage turns into fondling as mother and adult son cross the forbidden line.