I might have to give that one a go! They always but it down to a 'bad' experience!
I must warn you, you are playing with fire because you don't want to go ahead with the booking if she totally resists.
Here are the rules:
1:
you have to be confident and assuming but not undermining 
2:
Blend point number 1 with humour 
3:
Dress like you have money, think of a richer version of you. Don't wear a suit unless it's actually a good one and only wear vest or v neck if you have a decent frame.
The standard is nice fitting jeans with neutral footwear with a white shirt with cuflinks and a small amount of quality jewellery. have a money clip and do the old £50 on top off a bunch of 10s and fives to make it look like you have a wad of 50's. have her money in a envelope next to the wad of cash in your wallet and act like the £150 ain't nothing.
4:
Be yourself but speak really good English, leave out the "wha gwaan" "you get me" "bro" "ya naaa meean". If she asks you why you don't speak slang tell her that innocent sweethearts like her are not ready for to see the gangsta side of you yet.
As for myself, I say it in shakespear toungue I tell her, "thou is not ready for the darkside of my bloodclart character" this does not work with wg's with terrible English so just say "baby, I am good chocolate" . Don't get offended or go into a deep conversation about social engineering and stereotypical development her pussy will get dry and she won't want to see you again. Save that speech for the boys, ya na meen my yooot.
5:
Be cleaner than your mother, if you are clean she will pic that up. I'm talking clean to the point wear you smell of arial and persil with only a touch of aftershave (go easy on the aftershave because she might not like it and it's does not make you appear cleaner) You want the little princess to think " f@cking hell, this black bastard is cleanest man i've met the bat@ard is cleaner than me"
6:
If you are a ugly f@cker wear glasses, glasses (not sunglasses) this will make you look less confrontational. Us Black men, can make the little princesses uncomfortable and if you are big and ugly wearing glasses will help.
I have a babyface so I have to do is show I am mature, not stupid or too gnagsta but if I looked like jay z at morgan freemans age with the height of antony joshua I would wear glasses and a walking stick to make the wg feel sorry for me.
Then 10 minutes later after she reveals her breast start walking again and thank jesus and tell her that you are now healed because of her beauty. Remember, humour breaks all barriers.
You want the little princess to think " f@cking hell, this black bastard is cleanest man i've met the bat@ard is cleaner than me"
7:
never tell her if you work women are always trying to put men in a category so that they know how to treat you and what they can get from you. Make her work to find out that information even if you have a cool job and it would create conversation.
Just tell her that she is not ready for you status or just say that what you do is "important" or my favourite is " if I told you my job you would get jealous" and " my job entails the measurement of excellence let me measure your excellence" the point is not to impress her but to divert the conversation. My other favourite is " i am floyd mayweathers cousin or antony joshua's fifth cousin or if she is asian I tell her I am the brother of obama's ammbassidor so I don't need to work"
8:
Text her after the session saying that you had a good time and ask her if she will be working next week (even if don't don't plan on booking her again). Don't say great or fantastic because she already get's her ass kissed all day by punters.
The point of this is to get her to reply (that is why you ask the question). When you get a reply it will most likely be "yes hun, had a great time can't wait to see you again" Now you are all set because you have proof that the night you had was with 2 adults that were willing to engage in private sexual activity and she can't pull no sexual harassment charge on you if she turns out to be a crazy psyco type of princess.
