Book excerpt: Two private school girls find themselves accidentally dating.Brentwood High is a competitive playground for the teen-aged and rich. Most students excel at Brentwood and Zoe Davis is no different despite her lack of wealth. When a random party throws the stunning plaything Ryan Astor into Zoe's lap, Zoe finds herself hunting for any reason to get the girl alone again.Flirtatious and filled with angst, Head Above Water is the story of two girls who are falling in love.