Open Question: How would I find out if a photographer is using my pictures on fetish sights?

[feedcrawler]

My friend and I have been working with this photographer for the past couple months. We think that he might be using our pictures for other things (i.e. foot fetish sights). He isnt straight forward about having a foot fetish, but after reviewing his pictures, he clearly does . I feel that he is using them to gain profit. Is there anyway that I can find out?

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