Noting the relative invisibility of prostitution buyers, or Johns, in discussions of the morality of prostitution, this article criticizes Johns’ behavior on the grounds that they are culpably involved in causing the typical harms of prostitution in the lives of the women whom they pay for sex. Those harms are, at bottom, the result of being habitually subjected to unwanted sex, and they are exacerbated rather than mitigated by such sex being bought and paid for. Efforts to normalize and legalize sex-buying should therefore be resisted.