Why do prostitutes like sex?

So many reasons. a person who has not married, and can not get married because of many reasons, or problems, or his plans in life to be done before marriage. but at the same time, he needs sex. or arrange marriages, the wife and husbands are not soul mate, or they dont love them really. but they have got married becuause of the parents decision. then they will search the sex somewher else. the wife may not satisfy the husband well. or she is not capable of satisfying him. not sexually, but behaviour, she should be able to fill the husbands heart with her love. or the husband is a bastard, and he is doing it.