I first distinguish promises with positive sexual content (e.g., promises to perform sexual acts) and promises with negative sexual content (e.g., promises to refrain from sexual acts—as one does when making monogamy promises). I argue that sexual content—even positive sexual content—does not cause a promise to misfire. However, the content of some successful promises is such that a promisee ought not to accept the promise, and, if she does accept, she ought then to release her promisor from the promise. I argue that both positive and negative sexual promises have content of this kind.
Comment (from this Blueprint): Liberto argues that promises to have sex, and promises not to have sex, are a special type of promise that it is morally wrong to make. She does this by first arguing why promises to have sex are “overextensive”. This means that sexual promises promise something too important: sex. After she concludes that promises to have sex are overextensive she spends the second half of the paper arguing why promises not to have sex (i.e. monogmany promises) are not disanalogous to promises to have sex, and thus are also overextensive.