Enjo kōsai is the Japanese term for the practice of older men giving money and/or luxury gifts to attractive young women for sexual favors. The female participants range from school girls to housewives. The term is often translated as "compensated dating" or "subsidized dating".
The opposite case of women paying men, gyaku enjo kōsai (逆援助交際; gyaku 逆 meaning "reverse"), is rarer, but host clubs do exist. Fraudulent solicitations from fictive women offering to pay for sex is a common tactic in phishing emails.