Am i bisexual because.....?

I like men, and have had sexual urges towards them. I have been attracted to men before and have fantasized about them. But I am not visually aroused by them in a sex scene.. I am turned on by Gay porn though. My friends think im weird because I am not aroused by a shirtless man, although I do find it attractive. But i prefer a tall, broad shoulder, lean man with glasses that can have a real honest conversation with me. That is a turn on for me, which my friends find extremely weird. I need more than physical appearance to be aroused and want to be sexual with a man.

But heres the issue, i am visually aroused by women in porn, not in pictures just when its in porn. I have seen naked women in real life but i find the sight quite disturbing. I have never liked or had sexual urges towards girls, but i admit i did have a point in life where i was curious. Also i get aroused by lesbian porn.

Im 16 by the way if this helps. So am i bisexual or straight or a lesbian. Thanks for the input!