I just love cock. I love women. I don't have even the slightest romantic attraction to men. But I love cock. Any color, any size. I once sucked off an Asian college student who had a cock smaller than ones I remember from junior high. As for color, I've never had one. When I was in my teens I met black guys on two separate occasions that wanted to suck my cock. I think that either of them would have like to have been the top for me to suck and/or fuck, but I was totally male straight at the time (unfortunately as I look back).
The first one sucked my cock, and that was that. About a year later the other one started sucking my cock, but when I couldn't get a hard-on, he stuck my dick between his ass cheeks, and he dry humped my belly until he came. So that was the closest thing I did to having sex with a black guy. My now burning desire for black cock came about many years later. I'm not sure how, except that one night I had a dream that I begged a big black guy to suck his huge black cock. The dream was so real and vivid that I had to keep reminding myself it was only a dream.
Aside from that it may be the taboo, or the fact that over the years I found the desire to feel like a young girl and be sexualized like one. My overwhelming fantasy is to be a pretty(beautiful?), shy, and submissive young girl drawn to a dominant black man with a big hard black cock that will use me as his fuck toy sex slave, including put me at the disposal of his friends at their whim, and gangbangs.
Unfortunately, I am long past my youth and being sexually desirable days. So I spend my time fantasizing, and remembering back to the sexual events of my youth, and wishing I could have some of those times to do over again.