First & Then is a story about Devon Tennyson - an only child about to start her senior year of high school and no plan at all for the future. She's content having unrequited love for her best friend and coasting though school being remarkably unremarkable. But then her cousin Foster comes to live with her family becoming the little brother Devon never had. Her relationship with best friend Cas changes in a way Devon isn't prepared for. And to top it off the obnoxiously arrogant yet unbelievably skilled jock Ezra becomes a complication Devon doesn't need when he takes Foster under his wing. 
 This is one of those contemporary stories which capture the moment perfectly. Devon is at a bit of a crossroads in life and doesn't realize it. She's happy being average and not expecting too much - both when it comes to school and her love life. When Foster crashes into her life uninvited, Devon finds herself rethinking many things. Her future college plans, her relationship with Cas and the uncomfortable way Ezra makes her feel start to mess with Devon's plan of not really having a plan. 
 This book is poignant in an unexpected way. First & Then is book about love but it is not a love story. That's not to say there isn't romance but it is not the focus of Devon's story. Learning to cope with having a brother figure unexpectedly come into her life is not something Devon ever thought she would have to deal with. Foster is intense and seemingly vulnerable. Having him in her life makes Devon reassess herself. And then there's Ezra, talented footballer who is everything Devon isn't. He is focused to the point of single mindedness. Everything in his life is dedicated to the future he has planned for himself. He makes Devon think about things differently and work out what she really wants in life. 
 Argh.... Have you ever tried to write a review and realize that nothing is coming out the way you want it to? 
 I want to say I loved this book. It was one of those books which had my heart hurting at times because of how much it made me feel. For a lot of this book I felt like I was right there with Devon because once upon a time I WAS Devon. I had no idea about college except that was what I was supposed to do next. Which college and studying what really didn't matter right then. And the almost pathetic way she follows alongside Cas? Oh yes - that was me too. Being a boy's best girl friend isn't easy when the feelings are unrequited. And I think that's why I'm having so much trouble reviewing this book. 
 I loved how familiar it was. How I knew what she was feeling. How much it makes me feel better about not being the only one who feels so clueless about life sometimes. 
 But also because Devon isn't me. She has her own life and problems yet for aforementioned reasons - she's perfectly relatable. I loved reading this book. I loved the love Devon found - for Foster, for the boy she was meant to be with, but most of all for the love she found for herself. 
 First & Then has a lot for anyone who enjoys contemporary coming of age stories. It's funny and unpredictable at times with relatable characters and interesting viewpoints. It explores changing relationships and coming to terms with life and the complexities of growing up. Mills' writing is strong and I look forward to seeing what she comes up with next. I may have never heard of her before or her youtube channel (How to Adult) but I'm so glad First &Then found its way onto my to-read pile. 
 First & Then in five words: Honest, humorous, heartfelt and entertaining.