Probably Maybe Omega by A.W. Scott

A clueless Omega + An Alpha with a need to breed = A fast-paced, dirty talking tale.

Bradley Pine loved his work as a librarian. He was paid to spend his days in the one place he truly loved – the stacks. Being nice to the patrons comes easy to him. Well, all except for one guy. The new-to-town recluse managed to get under Bradley’s skin and he can’t figure out why.
Colin Krafter left the big city life three months ago to escape to the mountain town of Silver Springs. He came hoping the fun little town and its townspeople would revive his muse. It’s been months since he could find anything to inspire him. Actually, that’s a lie. A certain Omega has captured his eye recently, but the guy wants nothing to do with him.