involve sexual desire might treat another person as a mere thing and might thus not be objectifying. However, Kant does not distinguish between male and female sexuality, and his analysis does not consider social hierarchies or asymmetric formations of erotic desire in or outside of marriage. Kant's argument is seen as implausible by most modern thinkers. Sexual rights as human rights Present and historical perspectives From a human rights and international law perspective, consent has become a key issue in sexual ethics. Nevertheless, historically, this has not necessarily been the case. Throughout history, a whole range of consensual sexual acts, such as adultery, fornication, interracial or interfaith sex, 'sodomy' (see sodomy laws) have been prohibited; while at the same time various forced sexual encounters such as rape of a slave, prostitute, war enemy, and most notably of a spouse, were not illegal. The criminalization of marital rape is very recent, having occurred during the past few decades, and the act is still legal in many places around the world - this is due to some not essentially viewing the act as rape. In the UK, marital rape was made illegal as recently as 1992. Outside the West, in many countries, consent is still not central and some consensual sexual acts are forbidden. For instance, adultery and homosexual acts remain illegal in many countries. Many modern systems of ethics hold that sexual activity is morally permissible only if all participants consent. Sexual ethics also considers whether a person is capable of giving consent and what sort of acts they can properly consent to. In western countries, the legal concept of "informed consent" often sets the public standards on this issue. Children, the mentally handicapped, the mentally ill, animals, prisoners, and people under the influence of drugs like alcohol might be considered in certain situations as lacking an ability to give informed consent. In the United States, Maouloud Baby v. State is a state court case ruling that a person can withdraw sexual consent and that continuing sexual activity in the absence of consent may constitute rape. Also, if infected with a sexually transmitted disease, it is important that one notifies the partner before sexual contact. Sexual acts which are illegal, and often considered unethical, because of the absence of consent include rape and molestation. Enthusiastic consent, as expressed in the slogan "Yes means yes," rather than marriage, is typically the focus