Watching the expressions chase across the Doctor's face was always entertaining, and this occasion no less than usual. He grinned as the Doctor finally took his hand, and shifted the grip round into a ballroom hold once they were on the floor, guiding the Doctor's other hand onto his shoulder and placing his free hand firmly on the Doctor's back so he could give him the strong lead he was so good at. In other things, he'd always follow the Doctor, but in dancing? Yeah, he was going to lead. And even if it was a slow song, he wasn't going to just shuffle about like some people. He liked to dance!
"I doubt I'll even notice - it's not like you weigh very much!" He peered down at the scrawny form mostly hidden beneath the layers. "Do you even eat, ever?"