In Heat, book 1
Felicity E. Heaton2010

A heat wave isn't the only thing making London too hot for lawyer Kim. She's been spending each night with a man who sets her body and heart on fire. The problem? He's a man that always sprouts black fur and purrs, and he's only a dream. Walking into work on the hottest day of the year, the last thing she expects is to meet Erik, a man who sends her temperature soaring and who resembles her dream guy exactly.

A black panther shape-shifter, Erik Blackwell has been searching for his mate for twenty-seven years. The visions they share each night are getting hotter but finding her is proving impossible as he's never seen her face. That is, until it turns out she's working as his lawyer on his contract negotiations with his brother, Alistair.

Kim can't deny her attraction to Erik. The heat she feels with him is intense and it's only a matter of time before they surrender to their desires, but something haunts her. Is Erik really the man of her dreams? If so, can he grow fur and purr? And what about the terrible feeling she has about Alistair and the contract? How far is he willing to go to get his hands on the company Erik owns?

What will Kim do when she discovers Erik's secret? Will she turn her back on him, or will she complete the mating and become like him so they can be together forever?