The ability to direct motivational feelings towards another person, and develop an intimate partner-relationship is important for social interaction, notably for sexual desire (SD). The recent discovery of a brain network for SD recruiting higher-order cognitive brain areas (angular gyrus), in addition to emotional limbic brain regions, suggests that SD is sustained by cognitive mechanisms, rather than by instinct only. Critically recent studies in social cognitive neuroscience support the interaction between SD and a self expansion model. The findings we report here are important theoretically and practically.