Draco found himself tensing up when Tonks had offered to take him out. He had an idea there would be a lecture and a warning of some sort during this little outing, especially with how quick she was to jump in.

He's also never really interact with her. And just the little bit he saw and the warnings Remus left of her...she wasn't someone to cross.

"What's wrong with my clothes?" he challenged. Draco couldn't help it. Appearance was one thing the Malfoys pride themselves in and had been strict on. Granted...now a days it hasn't been as strict. They might be old and worn out, but they still blended in with the wizarding community and muggles if necessary.