Am i bisexual?

I'm 18 and male (not from US). I'm still a virgin,and till now i've always liked girls,and still do,and i think i have high libido. Some months ago i started occasionally masturbating to gay porn,and i have some fantasies. I fetishize drag queens,or very very effeminate boys. In my town there is a guy who does makeup and is certainly gay. I find him very attractive,because of his beautiful face(he seriously look like a blue eyed greek god) and femininity. This made me question if i'm bi. I tried thinking about a relationship with a man,but i can't see myself in it. It's like it would be only sex for me and nothing more,unlike with women. I'm not sure if i'd be comfortable having sex with a guy,or i enjoy it only when i masturbate (comfort zone).