[Since the timey wimey happened and Jack is one of the furthest ahead has less confusion for starters; having had learned quite a bit and between the rubbing on the back, the speech - Ten does calm and when he does start - inhales deeply and notices that Jack smells of Rose and - Martha? And Gallifrey... The fields of red grass to be specific.

And begins tickling Jack's neck with his warm breathing and inhaling before slightly nudging the side of his head slight against Jack's]