Dash and Lily's Book of Dares by Rachel Cohn and David Levithan
But when they meet outside the pages of the notebook, they both find that the rules have changed and their friendship is no longer a game. Can Dash and Lily hold on to each other in the real world? Or will interference from parents, useless friends, demented dogs, ex-girlfriends, santa, santa's elves and finally the police drive them apart?
This Christmassy story has been out a while. Still, it would be a huge shame to miss it, especially if you're a fan of John Green. It's a charming and beautifully written tale of two witty misfits learning about love, chance and the importance of taking risks. My heart was warmed. Yours will be too. 14+
Other books and authors you might like; Jaclyn Moriarty's Feeling Sorry for Celia, Sarah Dessen's Just Listen, Lauren Oliver's Before I Fall. And of course John Green.