I second that.
I have fetishes myself that I never told ANYONE and I thought I was a freak, until I told my boyfriend and it turned out he'd had the same kind of thing the other way around! It ended up being way more of a big deal for me than for him and more satisfying for me, but it helped me see that I wasn't a total weirdo and it just helped to get it out there. Now he likes acting out my fantasies because I react so much--he loves giving me pleasure! So I'd talk about it with her if I were you.
Good luck!