I experimented a little bit with two male friends in middle school/high school, but I quickly determined that it wasn't for me.
I consider myself straight, and I have always exclusively dated women, but I am attracted to other convincing cross dressers and trans women. I sometimes fantasize about being with either sexually, and although part of me believes I'd actually give it a try, another part of me is unsure.
Just like many others who have posted to this thread, I'm also attracted to impressive male genetalia and, while I'm in girl mode.
But aside from a guy's male parts, I'm not turned on by the rest of a man's body much at all unless they are hairless man dimes haha
But even then, my attraction to women is waaaay stronger and I find every aspect of a pretty woman to be attractive and a turn on.
So, yeah. Maybe I'm more bi-curious than straight. But my thoughts, fantasies and attractions to men are so infrequent and uncommon compared to women that I still feel as though straight is the most accurate label for me for now.