 But they might not be exactly parallel. The extent to which someone’s sexual needs are properly met does somewhat depend on their sexual desires and preferences: a straight man’s needs might not be met by a gay one, and straight women meeting men’s sexual needs is troubling given sexism and gender-based oppression. Moreover, if X’s sexual need cannot be alleviated by X masturbating, how the needs are to be met is a pressing question, and so is how the depth of a sexual need is determined to see whether it gives rise to an obligation. 