Sexy pics- and this seems like a cool game indeed. I'm sure you've got plenty of "be careful"s but just throwin this out there: If I was her husband I'd think it be pretty cool to know that other people out there find my partners feet hot. Hell, I'd even let you tickle her, as long as I'm around-or at least get to see photos haha
From the perspective of someone in a relationship (with a girl with very cute, ticklish feet ;D ): Now I'm no swinger but if my girl was honest and open about her foot/tickling adventures I know I'd be a lot more at ease with things than if she didn't. I'd want to hope that I could trust both her and her photographer friend to respect me when I'm not around-rather than wait for me to be out of the picture...I hope that's not naive. The alternative seems a bit too conniving, my friend...
I feel you on getting excited but not wanting your fetish to blow up in your face. More times than we'd think though does fortune favor the bold, eh? 😉