Lover Unleashed: Number 9 in series (Paperback) by J. R. Ward

Payne, twin sister of Vishous, is cut from the same dark, seductive cloth as her brother. Imprisoned for eons by their mother, the Scribe Virgin, she finally frees herself - only to face a devastating injury. Manuel Manello, MD, is drafted by the Brotherhood to save her as only he can - but when the human surgeon and the vampire warrior meet, their two worlds collide in the face of their undeniable passion. With so much working against them, can love prove stronger than the birth right and the biology that separate them?