I enjoyed this book more than I thought I would. In the future, a virus has made most of the human world over 18 infertile. Now pregnancy has become a commodity, with teenage girls being highly prized for their ability to get pregnant. Some are even pregging for profit. Melody has made a huge deal to get preggers for profit, but her twin sister, Harmony, has other ideas. Harmony is part of the Church, who doesn't believe in pregging for profit. They are also confused about what to do about their feelings for guys that don't meet the expectations they have had. I'm intrigued enough to read the second when it comes out.