In Sexual Perversion, Thomas Nagel deals with what is considered “normal” and “abnormal” sexual behavior. Nagel introduces three circumstances which can be accepted without any exact analysis. Any sexual desires which are unnatural will be considered sexual perversion. Fetishes of objects is seen as perverse, but regular sex is not. Lastly abnormal sexual proclivities are perverse compared to abnormal practices adopted not from proclivity but for other reasons. In order to be a sexual perversion there must be a psychological interest at play. A physiological interest is not required. To explain what constitutes “normal”, Nagel offers a “skeptical argument”. The argument presented by Nagel uses “appetite” to explain. Resembling hunger, sex
