Rose put on her helmet and looked down at her space suit.
"I've always wondered what it was like to walk on the moon," she said.
"Well, you're about to find out," the Doctor replied, securing his own helmet. He opened the door and bounced outside.
"Come on outside!" he called. "The anti-gravity's great!"
Rose stepped out and looked around her. There was empty land as far as the eye could see. She began to walk towards the Doctor, taking each step slowly. It felt like she was flying.
"This is amazing!" she laughed. The Doctor bounded towards her.
"Do know what's even better?" he asked, grinning. Rose smiled.
"What?"
"Oh, I'll have to show you!" he exclaimed happily. He took her hand and pulled her as close as he was able to with their suits on.
"This," he said, "Is the best part of anti-gravity." Then they began to dance, Rose laughing all the while.