It wasn't dress up so much as now that he had her here, he wanted to buy things for her. To make her look nice. Not that she didn't look nice, because she looked stunning, really. Just absolutely gorgeous, really, and he wanted to help her look that way more. That was all. Really. The touching was just an added bonus and, being the Doctor, there wasn't anything truly lewd about it. Much.
"OH, yes. Woman Wept, gorgeous." There was a bounce in his step. "We might have to go again, just the two of us. To take it in with you being, well, you and the sights and the moons and- Oh, look! Here we are."