Youth in Western countries are exposed to many messages that sexualize women. We selectively review the literature on sexualization with the goal of clarifying and integrating theories, constructs, and models of the pathways and mechanisms via which exposure to such messages may affect youth. In the first section of the article, we define sexualization and discuss historical change concerning the construct. In the second section, we highlight the role that core values concerning sexuality and gender play in designing and interpreting research on sexualization. In the third section, we provide a conceptual analysis of the various psychological constructs related to sexualization, noting their roots in particular theories. In the fourth section, we discuss developmental issues and, in fifth and sixth sections, we present conceptual models of the antecedents and consequences of believing that sexual attractiveness to men is an important aspect of the female gender role among girls and boys, respectively.