Now that I think about it, I think i'm bi.
Don't worry about it, you'll go through a lot of feelings as you progress through puberty. You may wind up think you're straight, then back to bi, then to gay, and so forth. Eventually, you will settle on your true loveuality and be happy.
remember
liking men involves man love
which also involves snake in your butt and in your mouth.
are you sure you are ready for that?
There are such classifications as "Tops," "Bottoms," and "Versatile." Bottoms and Versatile people do the things you stated, while Tops and other Versatile people do the actual sticking it in his pooper.