Identity Shift — Mel Teshco

Alexia Leigh will do anything to honor her father's death, and prove that shape-shifting big cats really do exist. If that means chasing down the one person who might confirm that claim, then that is what she'll do.
But she never expects Blake Powell, the key to the shifter race, to rescue and seduce her. She never anticipated wanting him like he's her last damned breath!
Never in her life has she felt so alive and experienced such raw pleasure … and now she's torn between him and the proof she desperately needs.