Is it normal, sexuality, lesbians, boyfriends

Okay, I don't know what my sexuality is because lesbians really turn me on and I masturbate to them kissing and stuff, but I like boys and have had boyfriends in the past, but I don't currently have one. I just think about kissing my friends
who are girls sometimes and that really turns me on. but I also think about kissing guys. I think I'm bi or something but I'm not really sure.