Prostitution is the business or practice of engaging in sexual relations or sex acts in exchange for payment or some other benefit. Prostitution is sometimes described as commercial sex or hooking. Depending on the jurisdiction, prostitution can be legal or illegal. A person who works in this field is called a prostitute, and is a kind of sex worker. Prostitution is one of the branches of the sex industry: other branches include pornography, stripping, nude modelling, and erotic dancing. The legal status of prostitution varies from country to country (sometimes from region to region within a given country), ranging from being permissible but unregulated, to an enforced or unenforced crime, or a regulated profession. It is sometimes referred to euphemistically as "the world's oldest profess