Traffic-Out - Make a text link that says Escorts and buy geo targeted traffic from countries that you have escort listings for.
Juicy Ads - Find relevant sites that have a high percentage of traffic from countries you have listings for and purchase advertising on them. If looking for sales stick to text/banner clicked ads like the 2 I mentioned. If looking to just boost Alexa ranking or traffic trades then use skimmed traffic from other sources which is cheaper but wont generally convert as well.