Kneecap by Kim Fox

Wild. Ferocious. Untamed. Vicious. And that’s just Kneecap in his human form. His savage grizzly bear on the other hand… watch out! Nothing and no one has been able to tame this half barbarian/half shifter in thirty years, but there’s a glimmer of hope when a curvy girl named Nora walks onto the ranch.
Nora Marchesi has come to Montana to find her sister. What she didn’t come to find was a naked caveman stalking her through the forest, but that’s exactly what she gets. He has long hair to his shoulders, a long beard to his chest, and a long (you-know-what) to his knees. And for some reason, he seems to have a big crush on her.
Redemption Creek’s most savage grizzly bear is in a constant battle with his human companion Kneecap. Will they be able to work together to charm the pretty girl who is running away from them screaming? And when old enemies come to visit, will Kneecap’s new civilized manner be enough to stop them?