These, er, South African prostitutes you mention though….
Well according to one of the wife's glamour mags, South Africa is gearing itself up majorly for the approaching world cup (which is a football game – I looked it up on the internet). The South Africans are expecting lots and lots of football supporters to arrive, get jolly drunk and then want to go and nail someone, a service that the SA brothels are all too happy to provide. Some of these places are having extensions built and have sent scouts out into the countryside to recruit young ladies (and presumably young men since these are football supporters we're talking about) to follow them back to the city where they can earn a fortune just lying on their backs.
It was quite an interesting article despite mainly being aimed at putting the craps up British women by suggesting if their men are going away to watch the footy then they'll spend half their time embedded in SA nationals.
According to the brothel owners, British men are by far the best payers and most regular visitors that they see.