Holden believes that only those in committed relationships should be having sex, and that if you aren't into a girl then you have no business having sex with her. He sets the rule that if you respect a woman than you should not be dirty with her because how could you be dirty to a woman that you respect. And more importantly, what is dirty to Holden is sexy. Not long after he says this Holden break his own rule as is frequently the case. Holden's actions rarely support his words.