"Fifteen-year-old Aki Simon has a theory. And it's mostly about sex... Aki already knows she's bisexual, even if, until now, it's mostly been in the hypothetical sense... Actually, Aki's theory is that she's got only one shot at living an interesting life--and that means she's got to stop sitting around and thinking so much. It's time for her to actually do something... So when Aki and Lori set off on a church youth-group trip to a small Mexican town...