It's A Wonderful Fireman Bachelor Firemen Of San Gabriel Series, Book 6.5.

Hard-edged fireman Dean Mulligan has never been a big fan of Christmas. Twinkly lights and sparkly tinsel can't brighten the memories of too many years spent in ramshackle foster homes. Although he's established himself as one of the top firefighters at San Gabriel Station 1, he doesn't think he's good enough for someone like gorgeous Lizzie. Lizzie Breen is used to fighting-from her alpha male brothers, who try to smother her in the name of saf...