[Somehow, his placid poker face is even more suspect than if he'd looked shy about it.]

Might we add another variable? Suppose the recipient of the kiss had surprised the other person with an unusually lavish breakfast, for two, to celebrate a recent occasion. A birthday, perhaps.

Which I had not shared before now, because I had medical packs to assemble.

[...]

Hypothetically, of course.

[Obviously, they both already know what they're discussing, but what can he say? The game's fun.]