The Sorcerer’s Alpha by Corey Kerr

They’re lost in the wilderness. And there’s only one tent.

When a routine mission goes horribly awry, expert wilderness scout Marut finds himself solely responsible for protecting one of the powerful court sorcerers. Marut is suspicious of magic and more comfortable with horses than people, but he comes to begrudgingly respect Sycamore as they flee for their lives.
Lost in a strange and wild country and forced into close quarters, Marut and Sycamore develop an unexpected and unsettling intimacy during the long and treacherous journey home. Because Sycamore isn’t only a sorcerer, he’s also an omega, and he has needs Marut is irresistibly tempted to fill.
But Marut’s first loyalty is to his kingdom, and the war they’ve fled from isn’t over. As they’re plunged back into the conflict, Marut is torn between serving his people and saving the man he’s grown to love.