I know for a fact there are...funny story...
I went home for my 5 year high school reunion over this past thanksgiving break (ignore my youth...I try to...), and happened upon a bunch of my old classmates at the local watering hole...one of whom, a gal we'll call Jill, was a cheerleader back in high school--gorgeous, popular, stayed with mostly the other cheerleaders, etc...you know the type...well, let's just say we were cool but never really ran in the same circles...and we started talking, she introduced me to her boyfriend...I asked how they met--turns out, she's got a MAJOR BDSM fetish...and met her long term boyfriend on the site!!! She turned BEET red when she told me, and I said, "Hey...don't be embarrassed about that--you two both know exactly what you want, and you went out and found it...you'll both be much happier in the long run...no shame!!!" And proceeded to tell her that I'm a bit involved in the fetish scene in my city...etc, etc, etc...a fabulous story if I ever heard one!!! So there are in fact sites for everything out there...I just don't think that most have the numbers we do here...or the quality of members, if I do say so myself...😉