The Warlord Wants Forever - Kresley Cole

The heat level on this book is 'The Roof Is On Fire'! The intensity is immense, and the characters are well-crafted.
A Vampire and a Valkyrie. A highly unusual match-up of epic proportions, and even they know this in the story. Still they are fated and we swoon. These two are smart, full of whip and erotic as can be. The battle between them is love and hate but obviously not in the traditional sense. It was still an exciting and sexy story!
 
Source: http://www.fredasvoice.com/2014/09/61-warlord-wants-forever-kresley-cole.html