Oh yeah, funny how that works. Even in some of the most welcoming places, it can be very difficult to talk about things your already well into, much less speaking up about things you might think you could be into! Especially since, at least IMO, expressing yourself in those more...let's say basal/carnal desires can really help you understand more about yourself on an emotional level. >.>b
I agree on the whole being supportive thing, too. Relationships, be it just a FWB thing or something more concrete, are really built on trust. Knowing you can say things that might sound strange or try new things really does make things better in the long run, tho. It can be hard when your trying to figure...out your tastes. Sometimes, they can be horribly specific/ situation based...other times, going off the beaten path and trying something new to you can open up a whole new world of enjoyable things to do!