"I intend to," he murmured, far more focused on Jack's closeness than keeping up the pretense of being a cold scientist. There were plenty of options, plenty of things to try, things he'd been a bit too nervous to actually attempt in the past. But, well, if Jack wanted him to experiment...

He took in a sharp breath at Jack's words. For all his false ego, sometimes it just felt good to be wanted. And he wanted Jack, too. Pretty much far more than he'd wanted anything in a very long while.

"Now, be cooperative," he said, his voice teasing.

He lacked the finesse Jack had at undoing clothing, so he moved a little more slowly, moving to slide one of Jack's braces down, and then the other. A Time Lord was patient, and the Doctor could be, too.