I've kinda struggled with this fetish most of my life... I actually told an ex-gf about it once, but in a cop-out, cowardly way... we were walking past a comic book shop and I just told her in this dry, detached tone that there were some guys who were into superheroines as a fetish.. her reaction was really negative and made me feel bad about myself for awhile, but I think she was just being honest and since my poker face held up she had no idea it hurt me.... needless to say, we broke up soon after. When you sit next to a person and you still feel lonely, its time to move on...
For another gf, I had reached a stage in our relationship where I felt comfortable sharing my fetish with her... so basically, I confessed everything, how it started with superheroines, what I liked about it, and even showed her a bit of my collection... needless to say, she's no longer my gf... she's my wife! (haha got you guys). She accepted me for who I am and even shared some of her little fetishes, which were really vanilla compared to mine, but hey who am I to judge right?
I won't pretend to say that our sex life is all fine and good... i would be kidding myself if I didn't say my fetish got in the way some times... but I wouldn't trade her for anyone in the world. I figure sex is something we can work on when we have more time for each other (we're both working and we have a daughter). I'm just glad she's stuck by me even through the problems. There is more to a relationship than sex/fetishes but I could not hide something which was such a big part of my growing up and which I still try to understand sometimes.
The upside is, she knows with my fetishes I'm quite finicky and therefore less likely to stray... lol