In a technical sense Hank is completely right, and given the way they've both started snipping at each other in this conversation, Gen really didn't expect any other response. The blasé comment about functioning human anatomy, the biting retort about Gen's scope of winning being small and petty--

The comment about actually enjoying it though wasn't on his list of expected replies though, and his fingers do actually still for a moment in surprise at that.

Just for a moment, because if Hank's going to try to out smug him here, then two can still play at that game, with 'at that game' here apparently meaning 'with Hank's nipples'.

"I'm just trying to help a guy out here. You have to settle in and get used to this kind of weird shit eventually, right?"

Magnanimous of him, truly, and not at all looking like he's preening just a little at the admission.