Jack was amused at the ending to her sentence, as "savvy" was something he used frequently to end his own. He wanted to pounce immediately as soon as she confirmed that she had it, but by the looks of things, Aeryn had other ideas. "Oh, that's great," he said cheerily, knowing better than to ask for it immediately. She had scratched his back, and now it made sense that he would scratch hers. Depending on what it was that she wanted.