Marked By A Billionaire by Sophie Chevalier

Big, beautiful Winnie Wednesday is down on her luck. Fired from her waitress job, sidelined in love, and looking for escape from her hometown, she stumbles on MeetYourMate, a website that matches men and women. She can choose a man, spend two weeks with him, and see if they’re right for each other.
What’s the harm in trying it?
Weston Croft is star in the world of New York City finance, but this business mogul has a secret: he’s not a human man at all. He’s a shifter, a beast, a werebear. And there are very few women of his type in this human supercity.
Their love is forbidden, but when they meet, the red-hot sparks fly, rules be damned…