Maybe go and check out the fetish site, she did give you the login. Maybe she is giving you a hint that she wants you to find out that way.

Also, I agree with the guys here, I think giving you the login in the first place is indicating already that she is dead scared of talking to you directly about this and taking the initiative to bring it up in conversation. It's almost like she wants you to start the conversation with her with the elephant in the corner already out of the way.

Women can find it difficult to communicate with us. I don't know if it's just fear or whatever, but you will rarely find them just bringing up something like we would easily just bring up something with our guy friends and other guys at work for example. That natural confidence seems to be confined to men mostly.