The Darkest Passion by Gena Showalter

For weeks, the immortal warrior Aeron has sensed an invisible female presence. An angel--a demon-assassin--has been sent to kill him. Or has she? Olivia claims she fell from the heavens, giving up immortality because she couldn't bear to harm him. But trusting - and falling for - Olivia will endanger them all. So how has this 'mortal' with the huge blue eyes already unleashed Aeron's darkest passion?

Now, with an enemy hot on his trail and his faithful demon companion determined to remove Olivia from his life, Aeron is trapped between duty and consuming desire. Worse still, a new executioner has been sent to do the job Olivia wouldn't...

my thoughts~

Like all the LOTU books, The Darkest Passion was steamin' hot! Aeron is probably my favorite Lord (so far). And Livvie. Gosh, who wouldn't love an Angel, even if she is a fallen Angel? Well, besides Legion, but hey, she's a Demon!
Aeron & Olivia are, in my opinon, a great match. But really, who isn't?