Nana married a man three years ago who is much older than her. Her husband has a son named Akira who is close to Nana's age. Nana notices that Akira's way of looking at her has recently changed. One day, Akira puts his hands on Nana and tries to get her to have sex with him. Nana refuses, but Akira seems to enjoy even that, as he squeezes Nana's plump breasts...