Its desperate, expensive and disgusting. One of my friends recently paid for a prostitute after a night out of heavy drinking. 25 quid for the works, very classy she was as they got to work in an alley way apperntly. Was great until they got arrested for public sex apperntly.
the 23 quid your going to spend on a prostitute ud be better of spending it on a girl in a club, getting her drinks etc as the sex is likely to last longer and maybe even get something long term out of it.