Should have told you earlier...........

A guy took his girlfriend far away from city one evening; stopped his car and they were about to make love.

At the meanwhile; the girl said: I should have told you before that i'm a call girl and i charge $100 for an hour.

The guy paid $100 and had sex for an hour.

After a while; the girl said: It's getting dark. We have to go back to city now.......

Then the guy said: I should have told you before that i'm a taxi driver and it'll cost you $150 go get back to the city.