Ive got this thing for my best friend?

well we've been best friends for a while. and she's already totally outted to the world. me, notsomuch. i didnt even know i like girls until we hooked up, i still dont. or maybe Denial aint just a river in egypt. but is this just curiosity about to kill the cat? (the cat being our friendship) she treats me better than anyone i've dated in my 20 years in this planet but am i doing something bad by experimenting with my sexuality with my best friend? i feel as if we've opened pandoras box.