 Contemporary discussions of the definition and proof of rape continue to struggle with questions such as what consent to sex really means. Some feminists have argued that there is a domain of wrongful sex that is different from rape; Cahill (2016), for example, argues that sex that occurs within context of structural injustice is unjust sex that may be within a gray area of ambiguity. She distinguishes cases in which the woman is less than fully willing, cases in which the woman’s will is clearly overcome, and cases in which the victim cannot fully consent due to incapacity. What distinguishes these types of cases, Cahill says, is how the victim’s sexual agency is deployed. She characterizes as unjust sex in the gray area in which the woman’s sexual agency is actively sought but undermined for example in circumstances in which her consent is simply expected or in which it is difficult for her to express unwillingness. Subtle discussions such as this illuminate why some rape cases are so difficult for law to handle, as law deals in bright line determinations such as whether conduct was criminal. Allegations of rape in contexts in which one of the parties is under the influence of drugs or alcohol also place pressure on the idea of agency in the context of sex. Heyes (2016) explores the phenomenology of agency and the harms of assaults involving victims who are semiconscious or unconscious.