She understands the intent behind the gesture (or, at least, she thinks she does) and that means more than the idea that Azúcar would also be watching out for Jack. Already in mostly good spirits, she presses back somewhat aggressively, as if the first press had been a challenge issued to her.

They made a pretty good team, if Silent Horizon was anything to measure by. She doesn't want to think about that too much, but there's definitely some relief in knowing that the other woman seems to be invested in watching her back.