I am 43 as well. I'm open to bi, although I prefer women, so I'd be very picky on that one. I can be kinky too, with the right person, or at least have kinky fantasies otherwise.
I am extremely new to this, but it's something I've wanted for quite awhile now. (I'll write more about that later.) I'm interested in starting out as friends, and then seeing where things will go from there, if there is a mutual interest in anything beyond that. I am living with my fiancee, who I will write more about later as well. We've been living together for a little over 6 years.