2011 Summer.Includes bibliographical references.Past literature has discussed gender differences in romantic partners' desires for intimacy and has suggested that these gender differences have negative effects on heterosexual relationships. The current study sought to explore the validity of these claims. Participants completed surveys assessing their own desires for intimacy, their perceptions of their partners' desires for intimacy, and relationship outcome variables (satisfaction/commitment). Results indicated that perceived similarity of overall desired intimacy to one's partner is associated with relationship satisfaction and commitment. The effects of perceived similarity varied across types of intimacy and gender, such that perceived similarity in desires for social and emotional intimacy were most associated with relationship outcome variables for women and perceived similarity in desires for sexual intimacy was most associated with relationship outcome variables for men