This was the sequel to Straight, by Seth King.
Although I did like this book and that I got more Henry and Ty. But I do not believe this book is a necessity in the series. It does cover a little more of the struggles people have in life when it comes to being different in anyway whatsoever.
As was the first book, King brings the hot and heavy moments between Henry and Ty.
If you read Straight, and want more Ty and Henry this is perfect!