No two girls would be the same. Each employee sets her very own rules and limits regarding what actions she's willing to accomplish, what prices she charges and the period of time the services last. Negotiation is therefore an essential part of work. Each employee can agree to accomplish certain activities and will not perform others. It is wrong to believe that the sex worker is bought or rented: the sale is roughly pre-established sexual or erotic services which are contained in the activities that the worker offers.