Yes you should pay her for the hair job, I do it with nice bitches in my country, so I look for a nice lh girl from the sex business in the street, ask her if she would do that hairjob fantasy with me, if the girl is a open mind she will do accept and the only thing that mater to her is the money, and most of the time the price of it is like to ask her a blow job or a 20min regular sex, the nice part of that practice is you can choose different kind of girls from different ethnic so different kind of hair, I really enjoy it because most of the time the girls who accept that practice are nice and let you do it again if you are respectful wit, but we have to be kind to women anyway. That is it.