A/N: I don't know if people are really going to get pissed off about this. I've seen it happen before, so better safe than sorry, but Levi can't control his mouth, so….If you're one of those people, Levi's got a hella potty mouth in this chapter. Just a side note.

"HANJI!" Pound, pound, "I know you're in there! Get your ass up and fix this!"

Glasses…Where are my glasses? I felt around on my makeshift nightstand in the lab and got out of bed. What the hell, Levi? Oh! That's right! Progress! I wonder what happened. Am I going to open the door and find him doubled in size and ready to beat some titans? That'd be fantastic! Ideally, I would've watched the transformation happen in real time, but unfortunately, I've been banned from Levi's quarters. There's official paperwork.

"Morning, Captain," I rubbed my eyes, "What can I do for you?"

"What the fuck did you do to me?!" Ooh. So angry so early. Then again, it's Levi, so I'm not too terribly surprised. This is normal. Looks like he's holding steady. He also likes to slam doors in my lab. Good to know. The serum makes him moody. Side effect number one. May cause moodiness. I wish I had my notebook on me. Or at least a pen.

"What do you…" I swear, I must be hallucinating. I took my glasses off and cleaned them on my shirt, "OH MY GOD, LEVI, YOU'RE ADORABLE!"

"SHUT YOUR FUCKING MOUTH, HANJI!" Levi is definitely angry. And I don't think it's a side effect of the serum, "FIX THIS OR I SWEAR TO CHRIST, I WILL FUCKING KILL YOU!"

"Alright," I brought him into the lab, out of the doorway, "Let's use our inside voice here."

"What did you give me?" Levi growled.

"I didn't give you anything!" I had to fight the urge to touch his ears. I just…want to…

"LIES!" he hissed at me. I'm sorry. It's hard to take him serious right now. Especially with the tail. Levi brought himself down, "Hanji…I'm not adorable. I'm not a cat. I'm not your test subject. Now, what…the fuck…did you do to me?"

"But…Levi," I awed, "You're so cute! I'm sorry!"

"You didn't get clearance for this, did you?"

"When do I ever get clearance?" I scoffed, "Clearance, ethics board, superiors. Science doesn't need clearance."

"Does Erwin know?"

"You can't prove it was me," I jumped on the defensive. I was already high enough on Erwin's shit list. I didn't need anything more.

"Hanji," Levi stared at me blankly, "I woke up this morning with cat ears and a tail. You don't think Erwin would figure out it was you? How are you still allowed to play with chemicals?"

"I'm good at what I do," I shrugged, "But sometimes, some things don't go the way they're supposed to. But in that comes discovery."

"Well discover a fucking cure!"

"Levi," I tried my best to get him to settle down before he gives himself an aneurysm, "Does anyone know about this outside of you and me?"

"God, I hope not," Levi cringed, his little ears on the top of his head drooping down. Oh my god…I can't…

"Alright then," I put the coffee on, "Looks like we'll have to handle this with the utmost discretion."

"And quickly," he snarled. I just…No, Hanji. Don't do it.

"Well, first thing's first," I rolled across the floor on my rolling stool, "We find out what exactly went wrong."

"What exactly was this supposed to accomplish?" Levi asked, "Did you have intentions of making the entire garrison like this? We're supposed to meow the titans to death?"

"Actually," I clarified, "What this was supposed to do was make it super, super easy for you to put on more muscle mass almost instantly. In a way, it'd give you simulated titan abilities without you actually becoming a titan. It'd completely rid us of the need for titan shifters and they wouldn't be quite the loose cannons they are."

Levi stared me over in disbelief, "You know, Hanji, that's one of the smartest things you've ever said. So, where, in God's green Earth, did you make the disconnect in your research between simulated titan abilities and making me this?"

"That's what I need to figure out." And it'd be much easier when I didn't have Levi breathing down my neck. Or sitting off to the side being adorable. Let's see…Everything I used in it was still out. Exactly what I needed. Everything's still on the up and up, "But are you really so surprised that I came up with a good idea?"

"With you?" he glared, "Yes. Very much so. You may be a mad genius, but you have your moments of genius."

"Aww," I melted inside, "That's so sweet, Levi."

"Don't read too into it."

I couldn't fight it anymore. I had to ask, "Hey, Levi…"

"What?" he laid out on one of the exam tables, stretched out.

"Can I…" I couldn't keep a smile off my face, "Can I pet you?"

"Absolutely not." Well, he can't fault me for trying, "I'd rather you got me a drink instead."

"If I get you a drink," I bargained, "Can I pet you then?"

"No. Get me a goddamn drink, Hanji. That's all I ask right now."

"Sure," I nodded, "Isn't it a little early for booze, though?"

"Did you wake up a cat this morning?"

"No."

"Then, you can't bitch at me for wanting a drink." I felt so bad for Levi, though. I might have been the one that put him in this position, but still. How bad could being a cat be? He's still mostly person. I don't know to what extent he's a cat.

"Ok," I let him have that one, "What do you want?"

"Did I finish off your vodka last night?" he asked.

"I don't think so," I checked in the cabinet and found a full bottle, "What were you thinking?"

"Make me a white Russian."

"Sure," I checked the fridge for cream. And again…I can't leave that go untouched, "Do you want that in a glass or a saucer?"

"HANJI!"

"Glass," I froze, "Got it. Sorry."

Yeah. I'm really not in any position to be making jokes. Levi already wants me dead. Let's not poke that bear. I gathered my ingredients and mixed Levi a white Russian like he asked me to. Well…Ask isn't really the word for it. More like an angry demand. One of those things that if I didn't do it, my death would be slow and painful. But if I'm dead, how would Levi get back to normal? Yay! Loopholes!

"Hey, Levi," I wondered, "Exactly how much of you is cat right now?"

"The fact that you have to ask that question disturbs me," Levi grumbled, "But…Given the circumstances. All I know about is my ears and my tail. Other than that, I think the rest is relatively human yet."

"I know you're going to hate me for this."

"I already hate you, Hanji."

"But," I brought him his drink, "For the sake of me having you here, I may need to run you through a battery of different tests. Just to see what we got here."

"Define battery of different tests…" Levi's skepticism was to be expected.

"To see what cat traits you have and what you don't," I explained, "Just a few. It won't be too terribly difficult. Lay on your stomach right now."

"WHY?!"

"Just do it," I rolled my eyes, "We're this far down the rabbit hole. What's the worst I could do to you now?"

"You make a very valid point," Levi rolled over onto his stomach for me. He still didn't trust me, but I can't blame him. How I have anyone's trust will forever astound me. I know he said I couldn't pet him, but he did kind of give me permission to do what I had to here. Instead of petting him, I ran my finger up Levi's spine. Sure enough, his long, black tail twitched, his back arched, and he stuck his kitty butt in the air, "I hate you, Hanji."

"You might be more kitty than you think," I beamed.

"I hate you so much, Hanji…"

"Alright," I brought myself back, "We'll run a few tests and find a cure and fix you up to get you back into fighting shape! Although, I'm sure your titan fighting abilities are still there."

"I don't care," Levi balled up on the table, "Just…Fix this."

A/N: LEVI'S A KITTY KITTY! I'm so happy. I've seen more fanart of kitty Levi than I'd like to admit, but I had to. And God knows it'd be Hanji to do it. Bless her. Because I don't know about you, but the thought of a little kitty Levi balled up in my lap sleeping soundly makes me melt inside. And it makes me so happy. I'll see you next chapter! xx