"I told you Lance was poisoning us Donna! You didn't believe me, well here's the proof! Now will you marry me?" A woman's voice called loudly, causing the Doctor's head to snap up. There were two women on his ship, a brunette and a ginger.

"What?" He asked quietly, being ignored by both women. The redhead looked at him before turning to the brunette.

"Now is not the time, Katherine! This wasn't Lance, we just got kidnapped by whoever the hell that is!" The redhead, Donna, snapped to Katherine, the brunette. Katherine rolled her eyes and stood from her kneel, tucking the engagement ring and its encompassing box away.

"That's ridiculous! We have nothing in common besides our job and the fact that we've been best friends since birth! And I wasn't even invited to the wedding that you were just at! There's no way that that man would be able to kidnap us at the same time, alien or not! I told you Lance was poisoning you from the first sip I had of the coffee he made you!" Katherine yelled at Donna, neither woman paying attention as the Doctor had a mini breakdown. Two extremely domestic woman were aboard his ship while it was in flight!

"Well since you seem to think you know everything who is he, and what the hell are we doing here!?" Donna snapped back, just as loudly.

"He's an alien whose ship has what Lance poisoned you with running through it which teleported us here! It's called Huon energy and you were being poisoned with it!" Katherine said in a whisper-shout, the Doctor not hearing due to utter confusion and shock.

"Stop making stuff up! Just admit when you don't know something!" Donna shouted, as loud as she could.

"It's the truth and for fuck's sake believe me just this once!" Katherine yelled back, just as loud.

"What?" The Doctor asked louder, and they both turned to him. Their attentions were focused on him for but a moment before Katherine spoke once more.

"See? He doesn't even know what the hell is going on! This is Lance's doing!" Katherine insisted, much quieter but still rather loudly.

"Wha- How'd you two get on my ship? You can't do that. I wasn't. We're in flight. That is, that is physically impossible!" The Doctor finally yelled. Katherine gave him an irritated look.

"Oh, I'm sorry, were you invited into this conversation? No? Then stay out, Martian Boy," She snapped, turning to Donna.

"Oh for god's sake, he isn't an alien," Donna groaned, "Stop making wild accusations!"

"Marry me and I mi-" Katherine started, going to pull out the ring.

"That's not even legal! No!" Donna said, and the Doctor had had enough.

"Enough!" He yelled. It was silent, Katherine making a face at him just before he said it, as if she expected it. The silence didn't last long. With Donna, it never really did.

"Tell me where I am. I demand you tell me right now where am I?" Donna ordered. The Doctor ran around his alien console, and Katherine frowned, looking around. It was smaller than she thought it'd be, being an alien spaceship. Maybe the hallways lead somewhere? She started towards them.

"Inside the TARDIS." He answered, much more calmly than he appeared to be.

"The what?" Donna asked.

"The TARDIS."

"The what?"

"The TARDIS!"

"The what?"

"It's called the TARDIS."

Donna rolled her eyes, annoyed disbelief all over her face. "That's not even a proper word! You're just saying things," She snapped. The Doctor looked up from the console, noting Katherine jogging towards the hallway leading further into the TARDIS. He ran to catch up, blocking her way.

"No, this is my ship, don't go further into it. It's easy to get lost in." The Doctor ordered quietly to her, and Katherine stared blankly up at him. Eventually she sighed and walked back to Donna.

"See Katherine? He kidnapped us! Tell me, who was it? Who's paying you? Is it Nerys? Oh my God, she's finally got me back. This has got Nerys written all over it." Donna said. Katherine looked at Donna, shaking her head.

"Who the hell is Nerys?" The Doctor inquired, face still stuck in a mix between shock and disbelief.

"Your best friend," Donna snapped, and Katherine rolled her eyes. While they were arguing she tried sneaking past the Doctor and had her hood grabbed.

"Hold on, wait a minute," the Doctor started, "Not so fast, Katherine," he warned before continuing, "What are you dressed like that for?" The Doctor asked, keeping a tight grip on Katherine's hood. Katherine sulked.

"I'm going ten pin bowling. Why do you think, dumbo? I was halfway up the aisle! I've been waiting all my life for this. I was just seconds away, and then, and then, what are you doing?" Donna started, only to get distracted as she watched the Doctor drag Katherine over, pushing her into Donna's arms.

"Keep your pet away from those corridors, they can get lost," the Doctor ordered, much to Katherine's dismay. Her? Getting lost? Nah. She could track Donna down at any time, so how could she get lost if Donna was still at center hull?

"Oh, thanks, she's exactly the pet I've always wanted!" Donna said sarcastically. Katherine perked up, excited.

"Really? Then will you-"

"No," Donna snapped. Katherine deflated. Ouch. Katherine was pulled along by Donna as they ran towards the exit that Donna spotted. They both ignored his shouts and stopped just before they fell out. Katherine shrugged off her coat, putting it around Donna's shoulders when she figured out it was a bit chilly with the doors open. Donna pulled the coat around her, making a face.

"You're a twig, why do you have a coat that could fit three of me?" Donna asked, and Katherine shrugged. The Doctor walked up as they looked out at the nebula. It was beautiful.

"You're in space. Outer space. This is my spaceship. It's called the TARDIS."

"How am I breathing?"

"The TARDIS is protecting us."

"Who are you?"

"I'm the Doctor. You?"

"Donna. This is Katherine. She doesn't speak much." Donna said, missing the Doctor's dubious glance at Katherine, before glancing at her.

"Humans?"

"Yeah. Is that optional?"

"Well, it is for me."

"You're an alien." Donna stated flatly.

"Yeah." The Doctor replied, and Katherine nodded.

Donna looked at Katherine in disbelief, and Katherine decided to stare at the Doctor in that moment instead. "Hey, Doctor. If I told you the truth, repeatedly, and was proven right, repeatedly, and then one day I told you something utterly ridiculous, like, that you'd have a human counterpart one day, or that you'd meet this one alien that knows your personal future, or something equally ridiculous like you marrying a part-human part-alien… Would you believe me?" She asked softly, and the Doctor looked at Katherine. Not just a passing glance, but a full on look, and hummed.

"Well, if everything you had said before was true, and you predicted it extremely accurately, then yeah, I would." He commented, and Katherine nodded sadly.

"Now if only my best friend and one-sided love would have the same logic as you. She will one day, I know. But this is just…" Katherine trailed off and Donna gaped.

"You said Huon energy brang us here. Martian Boy, do you know what Huon energy is?" Donna asked, desperate for Katherine to be proven wrong. Donna loved Lance. She did! So… If what Katherine said was true, then Donna would be heartbroken.

"What? Huon energy? That's- That's impossible. That's ancient. Huon energy doesn't exist anymore, not for billions of years." The Doctor said, and Donna looked relieved before Katherine spoke up.

"You can check, though. Both Donna and I are saturated in Huon energy, we drank poisoned coffee for six months. It's spider-aliens. They were hiding from a war or something. They look kinda cool." She murmured, barely audible. The Doctor slammed the doors shut and ran back to get a few items.