This EXACT same thing happened to me, except, my girl wasn't experienced in the BDSM department, yet. I found all this BDSM porn on her computer. (She didn't clamp her nipples or anything, tho. )
She's always wanted to try it, but never really had the chance (too many closed minded partners).
I felt HELLA uncomfortable at first......(thats really an understatement). I contemplated breaking up wit here, because of it.
The idea that she wanted to try BDSM wasn't really the biggest turn off, though. (It WAS a turnoff, tho.) The biggest problem was that she NEVER told me about these fantasies. I mean, I told her all my fantasies, and she never told me about this. So I told her how I felt.
She reminded me that she talked about it with me before, and I (as soon as the conversation started) was like
. So she stopped talkin about it, because she felt weird. I remember the incident.
This really made me understand that my reactions to things can make people keep things from me if they are the timid / or embarrassed type. They'll hide it to save the awkward moment.
So, I've accepted that she's into it, and I actually enjoy tying her up and what not. I thought it would really be an issue, but we don't even do it THAT much. We have regular / love making sex more than anything.
Fantasies are not special if you do them EVERY TIME. You'll probably end up in the same position.
So, with that said, you should go back to her and tell her to stop that secret keeping shyt. Put everything on the table, or your relationship is over. Secrets (no matter how awkward they are) will fukk up a relationship. Make sure you make this CLEAR to her. Then, try the shyt with her. You won't do anything but expand your sexual knowledge, breh. It's not as bad as it looks.
Then tell her your fantasy is wanting a 4 some; you and 3 of her closest homegirls. She has NO choice but to make it happen!
Real shyt, tho. If you don't try it with her, she's going to find someone who will.
shyt, she might even already found someone. Hence the nipple clamps.
You share that girl, breh.