"So, med-bay. Get me all wrapped up in bandages and then wait a day and I'll be like new." I joked.

I stood next to the Doctor as he gazed into the air. He looked sort of sad and still a little angry with me.

"Sorry," I muttered, "How are you? I couldn't have looked good while I was um…"

He broke into a smile, "Now, what do you say? Get you all fixed up and go ice skating on the mineral lakes of Kur-ha. What'd ya think?"

I laughed, "Sure, why not?"

I limped towards the med-bay and the Doctor followed. He stopped and held out his hand.

"What's that for?" I asked.

He opened his hand and gave me a key. It looked familiar, "You'll be needing this."

"You're giving me a key? For the TARDIS?" I examined the key and the chain it hung on.

"You're going to be here for awhile. Might as well have one on hand." The Doctor dropped the key into my hands. "Thank you." He said quietly.

I hung the key around my neck and fiddled with it, "You're not embarrassed, are you?"

"What?" The Doctor said in a high pitched voice, "No! Definitely not. Now let's get you fixed."

I snorted and we continued walking. He was absolutely embarrassed. Anyone would be embarrassed after nearly dying. Then how come I'm not embarrassed? Because you didn't nearly die. Duh. I smiled and hopped onto the med-bay table.

"What alien solution do you have for me this time?" I asked.

The Doctor rummaged through the cabinets, "First things first, I need you to take off that old bandage."

I shrugged and unraveled the bandage, the cut underneath had healed into a fine, pale line on my palm. The bruising had gone away, too. I tested out my hand, pressing down on the palm and cracking my knuckles.

"Now, shirt." The Doctor walked over with a bundle of bandages and strange medicines.

I felt my face get a little hot, "Shirt?"

The Doctor nodded and looked through the bottles, "Yeah. You got burned right?"

"It's just that...until recently…" I stuttered, extremely embarrassed that I couldn't explain myself.

The Doctor looked at me, concerned, "What?"

"Up until a few days ago I was biologically female…" I said softly.

He halted in his tracks, "Ah. Right. Well, what are you now?"

I buried my face in my hands, "I'm whatever you are."

Fucking Gods this is so awkward! Why did I have to change bodies? Why did I have to forget what organs I had?! I rubbed my face with my hands and peeked at the Doctor. He was speechless and didn't know what else to do other than stare at me. I met his eyes and he started talking.

"Well, that makes sense. I'm the first being you saw, you probably had most of the basis of you from me." The Doctor fiddled with the bandages and carried on like normal.

I frowned, "Sorry, but do you not understand the extreme uncomfortableness that I currently feel when talking about my sexual organs that have drastically flipped since my body has changed?"

He glanced at me, "Um. No? Why would I care about your stuff?"

I looked down, "Yeah, right. Have you ever changed genders?"

The Doctor hummed and kept fiddling with the medicines, "No, at least not yet."

I unbuttoned my shirt and folded it, "You've changed how many times and never been a woman?"

"Yes, well, I suppose that Time Lords like to stick with their birth sex." The Doctor circled me, looking at the total damage. He paused, face filled with realization and ran back to my front, "Charls, if I'm the first thing that you ever saw and you based your basic structure off me that should mean-"

"Should mean what?" I asked as the Doctor frantically searched for something in the drawers.

He came back with a stethoscope, "It should mean that you…" The Doctor placed the chestpiece over where a human's heart would be and then moved it to the left.

"Doctor?" I raised an eyebrow, "What's wrong?"

He stood straight and set down the stethoscope, "Well, you've got two hearts."

"I've got two hearts?" I placed my hands on my chest, "Are you sure?"

The Doctor nodded, "Yeah, one there and one there." He pointed to spots he'd listened to.

I tilted my head, "What does that mean? I mean, Time Lords can't be the only species who thought two hearts was a good idea."

"It's not unheard of for other species but most people on Earth think a person with two hearts is the Doctor. That combined with my regeneration habits - they might mistake you for me." He concluded.

"Is that bad?" I leaned back a bit.

He hummed and continued to examine me, "It just makes things a bit more complicated. And high blood pressure. Harder to kill. Also, you don't have to breathe as often. Four beat pulse, too. So, you're definitely not going back to being human anytime soon."

I sighed, I've really changed, haven't I? Go from being a human to being a two-hearted, timeline sensitive, one third human, two thirds Gray. What a crazy week.

The Doctor poked me in the ribs and I winced, "Did you bruise your ribs and not tell me?"

I looked away from him, "Nope, totally don't know what you're talking about."

He sighed, "That could've healed by now if you've just told me."

"Just fix me." I grinned.

The Doctor smiled and grabbed some funny looking, light blue goop. He handed me the container and plopped some into his palm.

"Burn cream. Meant for fleshier beings unlike the ones for scales and exoskeletons." He held my arm and spread some one the blisters on my arm.

I winced as the cream cooled down the skin, "Does it have to go everywhere?"

The Doctor nodded, "Well, anywhere with burns?"

I spread some onto my hand and onto the burns on my shoulders, "You can get my back, then."

He hummed and walked around me, "You really are very reckless. We can't just keep healing you every time we go on an adventure."

I snorted, "Well, there's only so much you can do."

"How about a little self preservation?" The Doctor suggested while wrapping the goopy blisters with cotton and bandages.

"That's a big demand." I wrapped my arms and pulled up my pant legs to check for anything. Luckily the brunt of the burns were on my arms and chest.

The Doctor clipped the bandages together and patted me on the back, "There we go. All better!"

I examined myself and threw on my shirt again, "I have a quick question."

"What is it?" The Doctor asked distractedly, shoving the medicines he'd picked out into random cabinets.

I felt myself blush again, "Where's the bathroom and how do I use…it?"

The Doctor pointed down to the door, "There should be one out the hallway and about 5 doors down. Not sure. And as for your parts…well, that should come natural. Until then, try sitting."

I nodded and ran to the bathroom.

3rd Person P.O.V.

"Charls?" The Doctor knocked on the bathroom door, "You okay in there? No accidents or anything?"

Charls swung the door open, their eyes glittering with happiness, "Doctor!"

"What?!" He replied in a similar happy tone.

"I can go out without a shirt now!" Charls patted their chest, "It's all flat now!"

"Well, that's brilliant!" The Doctor grinned.

Charls skipped towards the console room, eventually kicking off their boots and running barefoot. The Doctor strolled after them and smiled. Charls eventually got tired and started walking instead. They fidgeted with the small buckles on their boots and gave short glances to the Doctor. The Doctor pretended he didn't see the small looks, looks that said they wanted to talk about something.

"Hey, Doctor." Charls started once they'd gotten to the console room

The Doctor circled the TARDIS and started to shift the flight path, "Hmm?"

Charls sat on top of the railing and swung their legs, "I have some explaining to do, right?"

"Only if you want to."

Charls hummed, "Well, if I'm gonna stick around for all our lives, we'll probably need some sort of agreement on communication."

"Right, yes. Communication." The Doctor looked at them.

"Well, only if you want to. I know that there's a lot for both of us to explain if we're both going to talk about everything. And I'd guess that there's a lot of emotional, mental stuff...baggage that you're carrying. And you don't need to talk about it if you don't want to unless you do want to in that case I'm always here for you. And if you don't think that there's anything you need to say-" Charls rambled nervously, after awhile the Doctor cut me off.

"Charls!" He shouted a little loudly, "Breathe."

They nodded and took a breath.

"Are you nervous? About talking to me?" The Doctor asked.

Charls wringed their hands, "Well, not nervous, per se. Just a bit anxious which I suppose is the same thing as nervous…I just don't want you to tell me anything you're not ready to tell me. Well, I suppose that I know a little because of the funny stuff that I see. Like Gallifrey, I know a little about Gallifrey but not all of it, and I know barely anything about you. But…oh...I'm doing it again, aren't I?"

The Doctor smiled and walked over to them, "Feel free to tell me anything you like."

"I can feel stuff." They tried to explain with as little words as possible, "When Lazarus started to mutate I could feel that. I grabbed his arm before he killed Lady Thaw and I couldn't stand it."

"What'd you mean?" The Doctor asked in a higher voice than his usual.

"I could tell that he'd broken. It was the same with you, except different but the same. When you had that sun in you and I held you - it felt like there was too much life in you. Like if I held on any longer, I would break. And in New New York, the reason that I was just standing there was because when I placed my hand on that lady's shoulder - I felt something. It wasn't like with you or Lazarus where something was wrong within you, it was like she was in the wrong place. She wasn't supposed to be in the under city, buying moods or forgetting her parents. The entire undercity felt like that, but then when we got to the over city it didn't feel like that. It was supposed to be abandoned and quiet."

"That's very interesting," the Doctor itched his head, "You are part Gray, a species related to many time-based species so that's why you can tell when something was broken. But it wasn't your timeline that was broken." His eyes widened, "You can tell when something's wrong with a timeline! Not just your timeline - anyone's timeline! When you touch someone, you can tell if they're broken. That certainly is brilliant, the Gray must be so fascinating."

"I don't like that feeling, Doctor." Charls sighed, "I know that it's useful and helps figure things out quicker but when that happens - there's a feeling that overcomes me and it makes me scared. It's a broken person and I can't do anything but watch and cower and follow my stupid instincts."

The Doctor nudged them, "Your instincts keep you alive. It's important to stay alive, especially as the last of your kind."

"You'd know all about that, Sandshoes." Charls joked.

He feigned shock, "They're not sandshoes!"

Charls smirked, "So is it your turn? Or are we just going to go skating on an alien lake?"

The Doctor's face fell a little, "I'm glad you're here, Charls. I need someone-"

"To tell you what's right and wrong?" They asked, "'Cause I do too."

The Doctor smiled and hopped to his feet, "So, ice skating? I can tell you all about Gallifrey while we're looking at the view."

CHarls smiled and joined him at the console, "I'd like that."

"Well then, Kur-ha!" The Doctor pulled a final lever and the TARDIS rocketed to another alien planet.