I am unsure if I am straight, bi, or bicurious. I've only ever really been attracted to guys, but I've started being sexually attracted to girls also
The only difference between bicurious and bisexual imho is whether you would do it in real life. Thinking about it is one thing, fantasizing about it is one thing, but actively wanting to seek it out makes the difference to me. So to me, if you would act on your attractions you’ve already bypassed the bicurious stage. That would also rule out you being straight. So you’re probably bi.