Promised to My Mate's Best Friend

She had no idea mates existed until a shifter walked into her coffeehouse, asked her out, and showed her a world of people with abilities she had never imagined.

Five years later she is his wife, the owner of that coffeehouse, and half of what everyone calls a perfect marriage—until dating-service ads start arriving and she learns that many shifters share a reverse harem, one woman with more than one mate.

The thought should be easy to refuse, yet she cannot ignore the chance that her husband once wanted exactly that life.

He and his best friend, two shifters from very different paranormal worlds, made a special promise and then lost touch, never believing they could keep it.

Only human, she has to decide whether she is enough for both of them, or whether even looking into that old promise will break the life they built.