She wasn't sure if she was supposed to understand what he was saying... the shyness comment had come a bit out of nowhere, but she smiled and winked at him, hoping that that was the right response. At least something vague would be acceptable. Paired with the fact that her finger moved down his cheek, he would be distracted enough to not notice when she smirked and said, rather cheekily, "Yes, I suppose you did." Thought that must have been it, because Jack Harkness was never one to seem shy.
At his accusation, despite how amusing it might have been, Jash smirked and raised an eyebrow. "Well I doubt that anyone could resist you for long, Captain." She put special emphasis on his title, smiling mysteriously. "But I think revealing something like that might inflate your ego a bit too much..." she paused grinning. "Amazing snog thought." Thought it hadn't - according to the memory REALLY been one. But he was very good at it.