Wisdom's Kiss by Catherine Gilbert Murdock (she also wrote The Dairy Queen books)
Princess Wisdom, known as Dizzy, longs for a life of excitement beyond the staid old kingdom of Montagne. Tips, a soldier, longs to keep his true identity a secret. Fortitude, an orphaned maid, longs only for Tips. These three souls might possibly attain their dreams while preserving their empire from ruin--if only they can bear one another's company long enough to devise a plan.
Hooked by Catherine Greenman
Thea Galehouse has always known how to take care of herself. With a flighty club-owner mom and a standoffish, recovering-alcoholic dad, Thea has made her own way in her hometown of New York, attending the prestigious and competitive Stuyvesant High School. But one chat with Will, a handsome and witty senior, and she's a goner—completely hooked on him and unable to concentrate on anything else.
Always worried that she loves Will more than he loves her, Thea is pleasantly surprised when their romance weathers his move to college and Will goes out of his way to involve her in his life. But then, Thea misses a period. And that starts Thea and Will on a wild ride that neither of them could have possibly prepared for.
Then I Met My Sister by Christine Hurley Deriso
It's not exactly easy living in a shrine to your dead sister. Since birth, I've known that everyone loved Shannon. She was perfect--beautiful, smart, talented. And me? Not so much. My parents always expected me to measure up to her, so why even try? This summer, I've started reading the journal Shannon kept just before she died.....and suddenly, nothing is what I thought it was.