Blood Fire — Sharon Page

INNOCENCE LOST
It was a night of exquisite rapture that changed Lady Octavia Grenville's life forever. Not only did she long for sexual pleasure - but as a succubus, she needed it to survive. Now she is intent upon learning to control her powers and searching for the child she was forced to give up, a quest that takes her into the arms of the rake who ruined her...

PASSION FOUND
Matthew, the Earl of Sutcliffe, is not the man Octavia once knew. He is now a vampire, but one doomed to die in a fortnight unless he can win a woman's love. The only one he desires is Octavia, but she wants him merely as a sexual plaything, a source of erotic delight. Somehow he must expose his own heart in order to find hers...