I was 17 the first time I had sex with a female as a male. I didn't begin my transformation until I was in my late forties. I gave my first blow job when I was 48 and had anal with the same guy and other t-girl that same night.
Sometimes I regret being such a "late bloomer" but there is nothing that I can do about that now. Everything happens for a reason.
Like Stephanie, one of my goals in life is happiness!