well my mates say that u should try everything in life at least
once although i disagree. fantasising about the same gender is
quite normal even for straight people. A BBC program aired recently
where they surveyed 2 million people in UK and asked them to
declare their sexual fantasies. Apparently most straight people
sometimes fantasise about the same gender even if in real life they
dun have any attraction to the same gender whatsoever.
In any case, the most that u could be is that u're bi, since u like
girls so much. But my advice is, if u dun have any physical
attraction to guys in real life, then there is no point in trying
something u dun like.