How to get womens to photograph their feet?

[Harry Jefferson]

Hello there. I always wondering how to get women to photograph their feet. Any suggestion is welcome here, but here is some my views and plan. Even this is 21st century, foot feetish is still a controversy by many people. In my city, there is one riverside when people walk around summer and swim. There I can use some type of sentence like: I filming people for Yoga site and there she can do barefoot on my camera without knowing it is about my feetishism? What to do? Is this ethical? What is your plan?