Bi panty lover ?’s

So I know I’ve liked girls and guys for a few years now. And I have a few friends that know I love thongs and g strings as well as most slutty lingerie. But I want to know, how do I tell certain friends that I want to wear tons of my panties and have them take pictures of me? I don’t want to ruin a friendship but I also love being photographed wearing just my thongs and g strings.