This article examines the normative force of consent, explaining how consent works its “moral magic” in transforming the moral quality of conduct that would otherwise constitute a wrong against the consenting person. Dempsey offers an original account of the normative force of consent, according to which consent (when valid) creates an exclusionary permission . When this permission is taken up, the moral quality of the consented-to conduct is transformed, such that it no longer constitutes a wrong against the consenting person. (...) Building on this account of how consent works, Dempsey identifies two sets of cases in which consent fails to transform the moral quality of one’s conduct: cases in which one is consent-insensitive to the rational force of another’s consent, and cases in which one acts for sadistic reasons. (shrink)