Dreams Aren't Realities. Right?

Lilly is a normal teenage girl, with a normal annoying older brother, and normal problems. . . or so she thought. After a dream that was a lot more then just an ordinary dream, Lilly discovers that she isn't really normal at all, in fact, she is very darn close to one of a kind, having the powers she has while being a girl. Her brother has them to but not to her extent. What will happen when Lilly falls in love with an enemy, that she never knew was hers. Can she really fight back? Or will she end up giving away her family's power that isn't hers to give. . .