Because you can't help it any more than I can getting all heated during my moon.

[That seems like a truly obvious answer. She shifts a bit so that she can lean on Jiro, because there's no way that she hasn't figured out where the tail is going.]

It's likely a reflexive thing, that you don't even think about. And it's a habit we'll have to break eventually...because there will be an emergency one day during your moon, undoubtedly.

But today? It's alright.