Have tried an escort massage service in Shanghai earlier this year. You have no choice in girl that comes to your hotel room. Basically, the girl will get you naked on the bed and then start off with a veggie massage before reaching your sensitive areas to get you horny to the point you want to have sexual services. You have to haggle on price as she will start off high but can bargain down to RMB700. Sex was so so but I wasn't complaining as a vendor was paying