Claude closes his eyes as Lorenz moves to kiss him, though one cracks open in surprise when he gives that little gasp. It's short-lived, though, and he's relieved when Lorenz simply kisses him again. One hand moves to rest on the warmth of Lorenz's chest, his touch gentle, not wanting to do anything that might provoke Lorenz to twinge his back and feel more pain than he already does.

He's happy to let the kiss linger, to let Lorenz take the lead however he likes. It's not a bad distraction, and for Claude's own part, he's happy to see Lorenz getting bolder a little at a time.