A/N: In canon, there isn't a mention of Article 37 of the Shadow Proclamation, but I invented it to suit my purposes.

Chapter 3

The Doctor and Kate strolled back into UNIT headquarters, and ran into a woman in a lab coat with a doctor's badge pinned to it. The Doctor recognized her instantly.

"Martha Jones! How are you?" The Doctor said.

"How do you know my name?" Martha said.

"It's me! It's the Doctor!" The Doctor smiled brightly.

"The Doctor… But you're a woman…"

"I've regenerated since we last met. Last time we met I was a tall, skinny bloke with messy hair and an ill-fitted suit. Regenerated three times since then."

Realization seemed to dawn on Martha's face.

"Doctor!" Martha wrapped the woman in a hug. "I've missed you."

"How's Mickey?"

"He's doing great."

"Glad to hear it!"

"Doctor, if you're done with your little reunion, we have Autons to defeat!" Kate said.

"Right. I'll catch up later, Martha!" The Doctor said, following Kate to the briefing room.

"Since the invasion began, there have been quite a few casualties, mostly military, but a few civilian. The squad I sent to find the Nestene Consciousness has been successful, but they were unable to give it the anti-plastic treatment."

"I'll take my TARDIS and defeat the Nestene Consciousness with the anti-plastic I keep in my TARDIS. I've done it before, shouldn't be too hard this time," The Doctor said.

"Okay. But I'm sending some men to accompany you, for safety's sake," Kate said.

"Doesn't have to be men. Come along if you are," the Doctor said to the soldiers in the room. A few followed her out of the room and to the TARDIS. The Doctor opened the doors and entered, giving the soldiers the ability to enter before closing the interior doors and taking off.

The TARDIS materialized in a building, seemingly normal, but one of the soldiers who had followed her into the TARDIS told her exactly where they had found the Nestene hiding. The Doctor opened the doors and rushed up the stairs to the creature, carrying two vials of anti-plastic in her coat pocket. The soldiers entered first, making sure the room was safe before allowing the Doctor to enter.

"I'm the Doctor. I request audience with the Nestene Consciousness under Convention 15 of the Shadow Proclamation. You are invading a level five planet. That is illegal by Article 37 of the Shadow Proclamation. So either clear off or I use the anti-plastic treatment," The Doctor said, holding up a vial of the anti-plastic.

"You wouldn't dare," said a booming voice.

"Watch me," the Doctor said, reaching to unscrew the lid.

"We will not leave the Earth."

"I'll do it."

"We will not leave the Earth."

The Doctor unscrewed the lid and tipped the vial over the creature, not yet letting any of the liquid fall.

"Last chance."

"We will not leave the Earth."

"Okay. I get it."

The Doctor tipped the vial upside down, letting the anti-plastic fall onto the creature, which screamed and shrank until it was nothing. One of the soldier's radios began to talk.

"The Autons have dropped! It's as if the signal controlling them has suddenly stopped!"

The Doctor smiled in victory. She had stopped an invasion, just like every other time she's stopped an invasion. She and the soldiers made their way back to the TARDIS and back to UNIT.

Back at headquarters, the Doctor was catching up with Martha Jones at lunch, which seemed to end up being full-on 'girl talk' as Martha called it. A man in a standard UNIT uniform walked up to the pair of ladies. He offered a hand to the Doctor.

"Hi, my name's Martin. Martin Lloyd."

"I'm the Doctor." She shook his hand.

"Doctor Who?"

"Just the Doctor," Martha said. "And the Doctor was a man less than 24 hours ago."

"I'll see you later," Martin said as he left.

"What was that about?" The Doctor asked.

"He was hitting on you," Martha said.

"Oh. Oh!" The Doctor said as the neurons connected.

"Do you even know what you're into or has the sex change affected that?"

"I wasn't even sure in the first place, Martha. What makes you think I'd know something like that after this experience? I grew boobs, Martha!"

"Sorry."

"I'm just hoping I can gain a companion somewhere. I don't fancy being alone."

"Don't be alone, Doctor. Remember that."

"Of course."

"And remember, you're invited to the company parties, as you still haven't resigned."

"I know."

"Look, here comes Jennifer," Martha said as a black haired woman walked up to the table they were sitting at and stuck out a hand to the Doctor.

"Hello, Doctor. I'm Jennifer Dunst. I work on cover-ups for the crazy stuff that happens. Make it look like accidents and stuff. We've got a job ahead of us."

"Hello, Jennifer. Yes, you do. Quite a job. Shop mannequins strewn everywhere, you know. Of course, the world does know that aliens exist," the Doctor said. "You know, Christmas with the Sycorax, Battle of Canary Wharf, planets in the sky, you know?"

"Yeah, UNIT tried to cover the Sycorax thing up, but having one third of the planet perched on rooftops ready to jump kind of made it impossible," Jennifer said.

"I know, it became a fixed point in time once I got involved, I couldn't go back and fix it, or I would have."

"I see. I've heard of the stuff you've done, and I just want to ask, can I come with you? Just one trip?" Jennifer asked. The Doctor pursed her lips in thought.

"Let me think about it. Just give me a minute," the Doctor said. She thought for a bit, then opened her mouth.

"Yeah, I'll take you on one trip. At least one," she said, causing Jennifer to smile from ear to ear.

"I can't wait! When do we leave?" Jennifer said.

"Whenever you want. It's a time machine, so you can run all you like and still be back in time for tea," the Doctor said with a devious smile.

"Then let's leave as soon as you're ready," Jennifer said.

"Is there anything you need to get? Need to tell your family where you're going?"

"No. They'll be alright. If we miss the mark, I'll tell them I was staying with someone from work, which wouldn't be lying."

"Alright. Martha, I'll be going, tell Kate Stewart I'll be back for the next disaster," the Doctor said, standing from her chair.

"I will. It was nice seeing you, Doctor. I'll tell Mickey you said hi," Martha said.

"Yes, please do," the Doctor said with a smile. "Come along, Jennifer!" she said.

"You can call me Jen or Jenny if you'd like."

"Mind if I stick with Jennifer?"

"Not at all."

The Doctor led Jennifer to the blue box sitting outside of the building. She unlocked the box and motioned for Jennifer to enter the box.

"No freaking way!" she said, rushing back out of the box and walking around it.

"It's bigger on the inside!" the Doctor mouthed as Jennifer said it.

"Is it? I hadn't noticed," the Doctor said, walking up to the console and flipping the switch to close the door behind her. "Okay, so tell me. Forwards, backwards, or to another planet?"

"Oh god, I don't know. How about forwards?"

"Sounds good to me!" the Doctor said as she threw a switch and the familiar wheezing and groaning began as the TARDIS disappeared from in front of the UNIT building.