Midnight Heat by Lynn Hagen

Jason has no idea that the sleepy town of Mercury holds so many dark secrets. But those secrets are revealed as Jason is plunged into a world he never knew existed. The men he works for are bear shifters. The guy he’s lusted after for months is a wolf. And now Jason finds himself running from a demon hell-bent on using him as leverage to kill Jason’s mate. To make matters worse, Jason is carrying Matt’s child.

Matt never thought fate would give him a mate. Not after his mother died in childbirth and his father had cursed him. After his last relationship left a bad taste in his mouth, Matt decides to date the waiter, a Grizzly, unaware that Jason is his mate. But when things go sideways and Matt has to save one of his own, Jason’s life is put at risk and Matt must do everything in his power to keep Jason safe.