| synopsis = [[Ayane]] has reserved part of the bathhouse for just herself and [[Sensei]]. In the bath, Ayane proposes an "experiment" where they ask each other a question which they can't dodge or talk their way out of. Sensei agrees, but is worried that she'll ask about their relationship. Instead, she asks whether she would be a good mother, and is pleased when Sensei tells her that she would. Sensei asks his own question — if [[Kirin]] walked in on them [[Prisoner|during the beach vacation]], he asks her to talk about that; if not, he asks her why she chose her question.
Ayane has reserved part of the bathhouse for just herself and Sensei. In the bath, Ayane proposes an "experiment" where they ask each other a question which they can't dodge or talk their way out of. Sensei agrees, but is worried that she'll ask about their relationship. Instead, she asks whether she would be a good mother, and is pleased when Sensei tells her that she would. Sensei asks his own question — if Kirin walked in on them during the beach vacation, he asks her to talk about that; if not, he asks her why she chose her question.