In response to that question, the Doctor pulled out the image of Jack doing the same to the Doctor and the way he felt when the word sexy came to mind. I think I do.

This was intimate on a new level. Guards down mentally, physically, just opening up utterly. It had been sometime just close to forever since the Doctor had allowed this to happen.

It was worth the wait.

He traced his thumb along Jack's hipbone as he worked with his mouth, testing out the strength of that sensitive area when paired with the sensations he was already facing. A scientific query, of course. With his mind, he traced the nerves along Jack's wrist.