Is it normal bi/ friend?

Im female, attracted to males.And i have lotsa good male and female friends. However, occasionally with some female friends I start to become attracted to them, not as strongly as males (though occasionally I might have romantic borderlining intimate dreams and fantasies about them). Im not sure if Im really attracted to them or if this is just a close friendship feeling but im going a little too far fetched? Anyone else feels that way and knows IIN?