Rose was taken slightly aback at the Doctor's sudden breaking away from her, but knew that she needed to breathe. After all, she didn't have a repository by-pass like he did.
She let a laugh escape her lips as even the Time Lord got in on the teasing of Jack with her, and grinned up at him. "Yeah, they're going to be wondering where we ran off to. Not that we really can swan off anywhere," the blonde said with another laugh and smile.