The arm thing was really quite nice, so there was no way Rolf was going to pull back. It was like he was back in the old days (or unknown days, from Luna's perspective), which he knew he missed, but had no idea how much.
"Yeah, there is," he agreed, "but one can lead to another." He smiled at her again. "Oh, the usual. Finding non-intrusive ways of searching for new underwater life, looking after those we know are here, and figuring out ways of making Mike pull a certain face." The smile turned into a grin. "Right now all I need is to mention ducks."