Check out this review and more at On the Wings of Books 
 What I Thought... 
 * The Fill-In Boyfriend is my new favorite Kasie West book. Might even be my favorite book of the year (it's only April so it's a little too early to say for sure). 
 * I love the pretend boyfriend/girlfriend plot line. It never gets old and it's always fun. 
 * Gia does so much growing throughout the book, and that's what makes this my favorite West book. At the beginning Gia is pretty superficial, she's too embarrassed to tell her friends that her long distance boyfriend Bradley bailed on her (they don't all believe she had a boyfriend) and that's why she gets a stand in. 
 * I adored Gia's Fill-In Hayden. He's a nice guy (obviously, since he did the fake boyfriend thing) but also funny and not quite perfect. He has a complicated ex-girlfriend/ex-best friend thing going on. 
 * Hayden's sister Bec was awesome (and I seriously hope that West decides that she needs a book). Her and Gia start to become friends and I enjoyed watching them do it as they are so different. 
 * Gia's other friends suck. She feels that she can't even tell them that Bradley dumped her before prom so obviously they aren't true friends. This was one of my favorite aspects of the book, watching Gia and her friends as their friendship changes. The way West handled their friendship was absolutely perfect, which made the book even better. 
 Overall this is my FAVORITE Kasie West book to date and one I have definite plans on rereading!