Not For Free by doqueensoo ; one shot

- (top!kai)

Jongin is a dirty cop who helps Kyungsoo runs his syndicate.   Like any dirty cop, he never does it for free and Kyungsoo is willing to pay in any kind of form.

Link: https://www.asianfanfics.com/story/view/1241520/not-for-free-oneshot--kai-kyungsoo-kaisoo-policeau