To get an explanation without asking for it aloud, for Kirk to anticipate and attempt to go over it unprompted—a very slight flush rises on Spock's cheeks before he can stop it. "I see. Thank you for the explanation."

And if Spock is listing toward Kirk slightly as they sit, he does not even notice. It is natural, comfortable, and, despite everything, easy.

"Then I too have a 'metric ass-ton' of course work to do in the coming weeks."