Inglés con piernas: an impossible market

So I've been teaching English in Chilito for a bit and have gotten the feeling from time to time, from potential students that they don't want English class per se; they want an English class with a pretty, young rubia...which they hope could lead to more. The other day, one of the street vendors who sells me fruit asked how much I charge for an English class and told me he would pay me five times that for just one class with me. The proposition sort of amused/shocked me. I just said "que va" and went on my way. Honestly. If I wanted to be a prostitute, I would have chosen that profession and what's more, I would shoot for earning more than $100 an hour because soon enough you are old, and then what?

The type of clientel that want Inglés con piernas are pretty easy to distinguish after a couple weeks in the English-teaching business. And there is such a demand for English in Chile that it's really unnecessary to teach these kind of students unless you choose to. I avoid them because they are a pain in the butt and trying to teach them only leads to misunderstandings, because they are not in it to learn English.

But anyway, there seems to be a HUGE market here in Chile for Inglés con piernas. Unfortunately for the potential customers, I don't know any gringas who are interested. Huge demand, no supply.

So here's a good challenge for any creative businesswomen/men out there. How do you provide this service? And more specifically, who do you get to provide this service? Perhaps a café con piernas could offer this to distinguish itself in the market?