This Glamorous Evil. Michele Hauf

Star is a familiar, a cat shifter able to help witches summon demons—after she's been thoroughly satisfied sexually.Usually an assistant helps her reach the state of arousal necessary to work the spells. . . until sexy sorcerer T. J. proposes to pleasure her himself. Star doesn't think T. J. can make love to her while staying emotionally detached enough to get the job done, but his promise of a hefty payment—and his own potent sensuality—is too tempting to resist.Soon, they're getting down to business—and Star is having the best sex of her nine lives. But once their arrangement is over, will she lose T. J. forever?