There are 2 books in the Vampire Sorority Sisters series.
The Vampire Sorority Sisters series does not have a new book coming out soon. The latest book, Blacker Than Blue (Book 2), was published in January 2013.
The first book in the Vampire Sorority Sisters series, Better Off Red, was published in November 2011.
The Vampire Sorority Sisters series primarily falls into the Paranormal Romance genre.