In a variety of ways, Draco and Luna could be compatible although it would require some transformation from canon.  Being unfamiliar with the idiom, the first reaction was that he never got his finger in    .If the reader is romantically inclined, Lucius and Draco are doing the best they can to recover from the minor tragedy of their missing the mark: being too gentlemenly and becoming friends with the girls.   

Thank you.  It is a tale of two wizards still too shattered to connect the dots and realize too late the mistakes they've made.