It's one of my frustrations with escorts in Spain. When I confront them on it, they say "you pay up to 60 min., if we finish we sex before that time, then we finish before and the session is over." So now I have to be clear with when making an appointment it is for the full hour and not just up to one hour. When making your next appointment with your guy, just say you expect the entire 70 min or you will pass on your appointment.