He wouldn't be able to be, soon enough, would he?

Lucifer stopped at the elbow. He reached behind Duke, nudging his back up just so, and looped once around his chest. A second time, much lower. Then drew the rope back up, up over his shoulder, tying it back under that original band, and so again and again, putting painstaking focus to the whole process.

Drawing diamonds across his chest in rope, making sure each loop sat snug against his skin.