Steamed Up by Elizabeth Darvill

In a world of steam runners, demons and soul stealers, seduction is her greatest weapon....

Half-succubus Angel has found her perfect match with Ian, the man with the other half of her soul. He gives her love and the erotic pleasure she needs to survive, though they also enjoy ménages with her frequent paramour, Jezebel.

But when her friend betrays them, Angel may lose everything she holds dear. She'll do anything—and anyone—to save Ian, including join forces with a dangerous former lover....