Vastra's eyes widened as Jack pulled her into a dance she certainly was not familiar with. It was quite close first of all, and a little jerky. But after a few moments she figured it out and followed Jack easily.

"Perhaps because I am a lizard woman, sir. And married to my parlor maid." She smirked and raised an eyebrow at him. "Those things tend to put a damper on things most fellows might say."