Most of the times that I've asked, the fee was quite reasonable. But maybe it's my way of asking.
I don't normally ask 'How much are you', I'm more likely to say something like I've got €x available and she says that will get me so much time. But I have met ladies that charged me different rates on different days.
However, do not go through with an appointment without agreeing a rate. I have one bad experience of an escort demanding more money than I was carrying, I had presumed the same deal as my previous visit. She didn't like being taken for granted and she accompanied me to the nearest atm. Luckily my account was already drained. This was several years ago and not an advertiser on this site.
My wife caught me wearing ladies underwear and threatened to leave me.
So I packed up all her clothes
And left.