Am I gay or straight?

I have the usual masturbation routine of once or twice a day and all that but my preference as far as what I like goes has come to my attention recently. I noticed that yes, I did get aroused by the site of a hot girl (especially of my age) and all that but the erections just come in almost instantly when it comes to males. Also, I noticed that I cum "more" when I watch straight porn but take longer to finish while I cum "less" but faster when its gay porn.

I'm 13 years of age.