Loving my BFF...who's also a girl.

Loving my BFF...who's also a girl.
Hey everyone. I just joined this site to get some opinions of other people. 

I'll try to make it really quick...
So I have been best friends with this girl for about 3 years now. She and I are VERY close to each other...talk about everything...
And so about a month ago...she told me that she is in love with me. She is still questioning her sexuality a bit (as am I). We've kissed but that's it. 
I never thought that I was anything but straight...but now I am questioning it because when I am with my best friend, I just love her so much. Kissing her is great. I really think I could be falling for her. But when I think about guys vs. girls...I am certainlly attracted to guys, but girls I am still a bit unsure about. Thinking about kissing/making out can excite me, but thinking about much more than that doesn't really turn me on when it comes to girls. Doesn't exactly turn me off though either.
My sister called my "bi-curious" today.

It's hard to explain much more than that without making this message really long, so I'll stop here.

I really appreciate any comments.
Thanks.

 Don't be in a rrush to settle any labels. Just relax and be yourself anbd experience what you are feeling. Sexuality can be quite fluid for many people. You may end up rea;lizing that yopu are straight or lesbian or bi or you may relize that labels don't work for you at all. Just don't be in a hurry here. Some people figure things out early some people take a while to figure things out and others don't even try to figure things out and just go with what they feel.
Relax and experience your feelings just make sure to be honest with others and don't lead anyone on.
A note about bisexuality or pansexuality. There are not that many people who have a 50% split in their attractions. Many of us still respond to one gender more than others. 
totally don't worry about making a long post, feel free to explain the whole story if you're comfortable with doing so.

questions of sexuality really can't be rushed, it took me two years to figure out my sexuality. so if you're just starting to question yourself now, it's going to take a while to even things out.
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this is just a ficade

 Thanks for the replies both of you. For now...I'm trying to just "go with the flow" and see what happens...
 Good, avoid letting anyone pressure you into 'deciding' identity details quickly.  Certainty comes with experience, and I don't mean that as 'age' I mean it as it comes through and by experience and that has nothing to do with age so just experience what is going on. As you get more familiar with your feelings then the answers will makes themselves known to you.