Hey, I thought I would post this here since this is the group who would be able to give the best-ish advice on the subject. (If it's in the wrong forum, please don't flame me, let me know and I'll remake it there and ask for a deletion here.)
My girlfriend and I have been together for about 2 years now, starting at our senior prom, and all the while she's pretty much known and accepts my fetish.