Jack hurried out and collected his clothes, and shaking his hands and dancing a little, as if it would help him expel all the radiation he'd collected. Jack frowned at the Doctor when he said he had things to do. "What about you?" he asked, pausing in the middle of pulling on his shirt, and actually looking a little hurt. "What are you going to do? I should probably come with you just in case, right?" Still... he didn't trust John to be by himself for this long, especially in one of the most valuable pieces of technology in the universe. Maybe he'd be able to distract John long enough for the Doctor to get back.

"No.. No, you're right. Stupid... Just... hurry up, okay? I don't know how long I can keep his sticky fingers out of the TARDIS." He pulled up his trousers and gave the Doctor a quick kiss on the cheek before heading back to the TARDIS.