A mother and her son are going to a spa resort together. This is the first visit to such a place for the son, so he is not quite sure what to expect. During their visit his arc goes through several stages: coming to terms with seeing his mother naked and being naked around her in the resort; Having to share a hotel room with a single bed with her; Becoming aroused by and having fantasies about his own naked mother. These steps are met with apprehension and shock (even some slight revulsion) at first, but during their stay they slowly grow accustomed to it, and start to develop strong lustful feelings for one another. Since they are fully aware that these desires are wrong, they keep putting down boundaries on their relationship - which they continuously erode, giving flimsy justifications or outright lying to themselves. In chapter 7, forbidden desire continues to blur their lines of boundary, finding new ways to explore their increasingly steamy desires for each other.