We can safely assume that the prostitutes were Thai, and the punter wasn't? We can also assume that the prostitutes were Ladyboys? Therefore, if you're referring to the three of them having identical looking testicles, the chances of them all being the same size and colour is incredibly slim...
Why didn't you say something nice? We all go down hill as we get older, but Shirley you could have come with some sort of serious compliment.
If you get even less sex in the next few weeks, it serves you right.