Levi suddenly passes out during a training session from exhaustion and Eren takes care of him.

When Levi woke up, his head was pounding and he felt hot, like if he were on fire. He used his legs to kick the blanket off of him, but as soon as his torso was exposed, he felt cold and pulled the blanket up covering his face and curling up into a ball.

"Heichou!" he heard Eren's voice and pulled the blanket off so he could see the source of the voice. Levi's room was dark so Levi had to struggle but he finally managed to see Eren's silhouette sat at his desk. Eren's hair was disheveled, pointing up at weird angles, was he sleeping on my desk?

"Why do I feel like shit?" Levi was surprised at how groggy his voice sounded .

"Do you not remember?"

"If I remembered I wouldn't have asked,"

"You collapsed during training, Hange said from exhaustion. She said to ask you if you've been sleeping,"

Levi closed his eyes is disbelief, he remembered waking up earlier that day and feeling dizzy, but he didn't think much of it.

"Of course, I sleep," he heard pencil against paper and knew Eren was probably taking notes on his condition.

"How many hours a night,"

Levi thought about lying, but this was Eren, he'd know if Levi was lying to him. He sighed, "2, maybe 3 hours,"

"Cor-,"

"Eren, we're alone, please don't call me Corporal,"

"Levi," Eren corrected himself, "that's not enough! No wonder you collapsed!"

"I don't need to be lectured, Eren. Do you want to tell me what happened after I collapsed?"

"Well, you fainted midair, luckily you didn't fall to the ground due to your maneuver gear, but you did get a gash on your thigh from one of your knives. It wasn't bad though, Hange said you shouldn't put weight on it for a couple days, and that if you listen to her, it shouldn't bother you anymore,"

Levi threw his arm over his eyes. This had to be the stupidest thing that had ever happened to him.

"Why are you the one here? Shouldn't I be in the medical room or something? To be honest, I'm surprised I'm not in Hange's lab being nicked with syringes," he smiled slightly to himself when he heard Eren laugh.

"Erwin said you'd be pissed if you woke up in the medical room. And also since the cut on your leg isn't all that bad, all you really need is to rest and drink a lot of water. Speaking of, I should go get your soup from the kitchen, I'll be right back,"

Levi took the moment to examine the cut on his thigh. He was only wearing his underwear so he could easily see where his thigh was wrapped up. He used his index and middle fingers to apply slight pressure to it and hissed when it stung.

Eren was back in mere minutes with a warm bowl of soup and pulled Levi's desk chair over next to his bed to sit on it and feed Levi. He sat up as best he could and leaned against the wall. Levi didn't complain about being fed to, it was nice to be taken care of, or maybe it was just nice because it was Eren.

"My body aches," Levi said once he had finished his soup and was laid back down on the bed. His arm laid across his eyes again.

"According to Hange's notes, that's common," Eren moved the chair back and sat at the desk, scribbling more notes.

"I have a fever, I think," he heard Eren shuffle around and then his footsteps. Levi's arm was raised from his eyes and he opened them to see Eren above him. One of Eren's hands was still holding Levi's arms while the other was pressed to Levi's forehead.

"Hmm, I guess you do. It could've been another factor into why you collapsed. That's probably why they left you pretty much naked,"

Levi smirked, "is that your medical observation,"

Eren smiled sadly down at him and sat down on the edge of the bed, his hands on his lap. He suddenly got very serious, "you need to take care of yourself, Levi,"

Levi froze at Eren's tone. He sounded too serious for Levi's liking, he wasn't used to this side of Eren. Not to mention he also sounded mad, "Eren," Levi tried to grab his arm but Eren pulled it away, but didn't get off the bed. Levi retracted his arm and waited for Eren to speak.

It was several minutes later that Eren finally said something, "you have to be more careful. You're lucky it was during training and not while we were on a real mission. It could've been dangerous. We don't know how much control I have in my Titan form, and if you were to collapse then, I don't know if I would be able to help you before something were to happen," his voice cracked at the end.

Levi's eyes had adjusted to the darkness and the faint light from the moon through his window helped him see that Eren was crying. His body shuddered a bit as he continued to release silent tears.

"Eren," Levi sat up and wrapped his arms around Eren, ignoring the pounding in his head and the stinging in his thigh, "I'm sorry, I didn't mean to worry you," he held Eren as he continued to cry.

"I always worry Levi, especially about you," he said between sobs.

Levi wrapped his arms tighter around Eren, "I'll be more careful. I'll stay in bed for as long as I have to until I'm better and then I'll take better care of myself, okay?"

Eren nodded and turned to Levi, "I'll train harder to make sure I have control in titan form," he wasn't crying anymore but there were still tears in his eyes.

Levi wiped away his tears with the sleeve of his shirt, "you should do that anyway, Eren. Not for me,"

"But Lev-,"

"No, Eren, listen to me," now it was Levi who was speaking seriously, "you don't need to worry about me, so stop worrying. I'm promising you that I will take care of myself, I'll sleep more, eat better, I'll do anything I have to to make sure I won't faint again. But you have to promise me you won't worry about what happens to me," Eren was beginning to cry again. Levi wanted so badly to just hold him and tell him everything would be alright, but he couldn't, "you have enough to worry about, let me worry about keeping everyone alive, including you, and you worry about your Titan abilities. Deal?" as Levi was speaking, he let go of Eren, but held both his hands.

"Levi, I cant ask you to do that,"

"You're not asking me,"

Eren stared at Levi for what seemed like the longest time. Levi couldn't take the silence anymore and pulled Eren into a kiss.

"That's not going to make me agree with you, Levi," Eren said when they parted.

"I know its not," Levi had to remind himself that Eren was still young, and stubborn, "you're not going to budge are you?" Eren shook his head. Levi thought for a moment, "ok, new deal. Put yourself first,"

"I don't understand,"

"I realize it was stupid to ask you to not worry about us, because no matter what I say, you're still going to. So I'm asking you now to put yourself first. Worry about yourself and make that the most important thing, then worry about us. Trust me when I say that I will take care of your friends to the best of my abilities. And I'll be here for you to come spill your worries to me as long as you want me to. But no matter what our relationship is, I'll still take care of you," Eren had started crying again, "but all that I ask is that you promise to trust me because I will do my best to keep everyone you care about alive,"

"Even yourself?" Eren's voice was small and soft.

Levi placed his hand on Eren's cheek, "even myself,"

Eren threw his arms around Levi, had Levi seen it coming he could have prepared himself, but he was surprised so he let out a loud, pain-filled groan, "Levi? Are you alright?" Eren asked, immediately looking toward Levi's thigh to make sure the gash hadn't reopened.

"My head hurts," he had his eyes shut tightly.

"Do you need some medicine?"

"I think so," he heard Eren get up off the bed and rummage through his desk until he found the medicine bottle. Shortly after, Levi felt the bed dip and he knew Eren had sat back down.

"Open wide," Levi did as he was told and was met with a foul tasting medicine.

"That is disgusting," Levi grimaced at the taste and happily took the water Eren offered him. He drank the entire glass and laid back down.

"Feel better?"

"Not yet,"

"Does your thigh hurt?"

"Only when I flex my leg,"

He heard what sounded like Eren taking off his shoes before he felt Eren's weight on his uninjured leg. Levi opened his eyes to see Eren hovering over him. Eren placed his hands on either side of Levi's face. He looked serious again.

"There are three people left in this world that I care about," Eren started, "and you're one of them. That's why I want you to be there whenever Hange performs any experiments while I'm a titan. I need you to participate and help me control myself," Levi stayed silent, but listened intently, "I have a theory, that maybe since you and I have a connection outside my titan form, in my human state, it will make it a lot easier. Right now I barely listen to Hange, if she asks me to turn to the right, I turn to the left. So maybe I'll listen to you better,"

Levi had stayed silent the entire time Eren spoke, he was surprised the idea had never occurred to him, but it seemed like it was worth a try, and it would make Eren feel better, "I'll speak with Erwin and Hange tomorrow,"

"No,"

"No?"

"When you feel better. I've been instructed to stay and care for you until then anyway," Eren was rubbing his thumbs across Levi's cheeks and Levi knew they had moved on from their discussion.

"Eren?"

"Yes?"

"My head still hurts,"

Eren smiled down at him and Levi returned the smile, Eren leaned forward, "I might have something to fix that," he pressed a kiss to Levi's forehead which made him close his eyes.

Levi then felt kisses pepper over his temples, his eyelids, his cheeks, his nose, his jaw, his chin, the space between his eyebrows, the apples of his cheeks. And he continued to kiss all over Levi's face until Levi deemed his headache gone and pulled Eren down for a real kiss.