Vala and Sherlock
Sherlock actually laughed a bit at Vala's suggestion. "Jessica Jones is not someone who would dance with me," he told her. "I don't think she would dance with anyone, no matter how much she liked them."
Jessica did a lot more with Sherlock than she would with a lot of people, but dancing was likely not one of those things.
"Of course, Vala," he said, offering her a small smile. "I hope to dance with you again soon."