Set after Harry's first Quidditch practice:
“Hey Harry, Lee has found a flesh-eating rose bush outside the greenhouses. Are you coming along?”
“I'll give it a pass Fred,” Harry replied after a moment of consideration. His aunt loved roses in every colour and variation so naturally he had come to hate them with a passion. And the whole “flesh-eating” part didn't sound very promising either.
“Oi, I'm George.”
“Yeah, I'm Fred. Katie, you coming with us?”
“No, I'm fine here Fred, away from the flesh-eating plants.”
“But I am Fred, you are George,” the other twin objected, sparking an argument who was who.
“Is that - Normal?”
“I have no idea. This was my first training as well.”
Harry looked up at that. Everyone else had been flying like they had been on the team for years while he had been floating around above their heads, looking for the snitch again and again. “Katie, right?”
“Yes, Katie Bell, I'm a year above you. And you, well everyone keeps saying that you are THE Harry Potter but I honestly don't get what that's all about.”
“Me neither”
After a moment of silence both kids began to laugh.
“Harry?”
“Mmm?”
“Have you ever flown an actual broom or just those awful ones?”
“Just the school brooms.”
“Well, we can't have that. Come on!”
“What - where are we going?” he wanted to know as the brunette dragged him out of the locker room.
“Back out. Trust me, if you believe that you can actually fly on that garbage, you need to think again.”
Harry launched himself into the air and began to test the limits of the Comet. It wasn't much faster than the one he had borrowed from Madame Hooch, but unlike that antiquity, Katie's broom was able to fly in a straight line and, at the same time was much more responsive. Flying was much easier if you didn't have to struggle against the charms which held you in the air, or anticipate that the old brooms might suddenly lurch sideways.
While Harry was having the time of his life, Katie stood at the edge of the pitch slack jawed, staring at the maneuvers her fellow teammate was doing. She was no stranger to aerial acrobatics, her uncle had taken her to the Farnborough Airshow last September, but what Harry was doing up there was putting that to shame. Neither those crazy Soviets nor the laws of gravity could hold a cradle to the stunts her new friend was pulling off.