Author's Notes: And here's the smut. Please don't hate me after you read it. This is what I had in mind from the very beginning. I think I might end this story next chapter and turn this into a series. I would love some prompts. Anyway, please enjoy and review.

"Close the door."

"Yes, sir," Eren replied to the drawling command and locked the door behind himself, stepping into the dimply-lit quarters that belonged to Corporal Levi. The room seemed very characteristic of the officer: almost Spartan, with only the barest essentials populating it, pristine and orderly, with every since book and sheet of paper placed strategically in their rightful places. The desk occupied the spot in front of the only window, stacked high with files and folders in neat piles. There was a pot of ink sitting on the left side, a sparkling new quill lying next to it.

Eren's eyes stray towards the bed in the farthermost corner of the room. It was not big, of course, it was larger than Eren's own bare frame-and-mattress contraption, however he would have expected a high-standing officer like Levi to allow himself more luxury. The bed was made up perfectly, of course, and Eren was pleasantly surprised to see two pillows. He somehow doubted that Levi would allow himself two pillows just for his own use. The thought warmed Eren's chest.

"Brat!"

The titan shifter turned his attention back to his Corporal. The name stung slightly, yet Eren knew he should have expected no mollycoddling from Levi. He knew the man way too well, and that had been part of why he'd asked him to do this in the first place. The only person who could really, truly handle Eren if things went south would be Corporal Levi. As much as Eren despised the humiliation he'd suffered at the man's hands, both when he had first been accepted into the Survey Corps and then every consecutive day thereafter, he admitted that he admire the older man. As a leader, for sure. And as a very handsome man, as well.

"Jäger, please save your teenage hormones for later. You and I have a deal to discuss," Levi said cooly, keeping an eye on Eren's uncomfortable stance. It was clear that the boy felt out of his depth. This could prove to be problematic, Levi sighed inwardly. He wondered briefly why he'd even accepted Eren's ridiculous proposition in the first place. Perhaps it had been boredom. Or maybe he was just due for a tumble. After all, there were not many opportunities for release with titans hot on his heels. "I want you to tell me why it is that you are here."

Eren hesitated for a second before answering.

"Because I don't want to die before I experience this."

"This what, Jäger? Standing in a cold room looking like you have a broom up your ass?" Levi said sharply. If the kid was even unable to say what he wanted, there sure as hell was no hope for–,

"I came here because I want to have sex with you, Corporal Levi." Well, that was honest.

"That's it?"

"And…" Eren bit his lip, careful not to dig his teeth into it too much. Sina knew, he did not want to change into a titan at this moment. "And I want to experience all the things a human being should experience throughout their lifetime."

Levi's eyebrows shot up.

"A human being, you say?"

Eren hung his head in shame.

"Yes, sir." That had been said through gritted teeth. Levi smirked inwardly. The boy still took it close to heart whenever anyone hinted at the fact that he could be something other than human – when he was clearly something bigger than merely that. Eren Jäger was a majestic anomaly, in Levi's mind, not that he would ever tell the boy that. He was fascinated with Eren, not in the way Hanji was, or that little blond friend of Eren's, or his ubiquitous foster sister. He was fascinated with studying Eren's power and harnessing it. He wanted to ride the titan's shoulder into battle. Not that he would ever admit that to Eren either. This tryst between the two of them, however, proved to be a marvelous opportunity to get closer to the boy.

"You will tell no one of this, even under torture, you understand?" Eren nodded. "What happens in this room stays solely in this room. As such, in here, you can call me by my first name and ask anything of me. I may refuse, however, there are no taboo topics. Got it?"

Satisfied with another nod, Levi stood from his desk chair and took several steps towards the younger man. He hated the fact that he was shorter than Eren, but he did not feel too bad about it having asserted his dominance over the proceedings. The boy was perfectly submissive too him, it was almost sickeningly endearing, the way he hung off Levi's every word. He hid his face underneath his fringe, eyes undoubtedly fixed on his shoes. With a small sigh, Levi reached out and tipped Eren's chin up just a little, to see him properly for the first time since he'd come into this room. What he saw was fascinating: Eren Jäger, perhaps the most head-fast, courageous fool of them all, stood rooted to the spot in the middle of his quarters, his eyes transfixed with fear and apprehension and a tad of excitement, his fingers clenching and unclenching at his sides.

"Relax," Levi breathed, inching closer to the younger man. He did not have to stand on his toes to touch his lips to Eren's, that was good. He was unwilling to embarrass himself further with the kid. "You'd think I was going to tear you apart here or something."

Eren bit his lip.

"I was kind of hoping you would," he said quietly, almost inaudibly.

But Levi heard it.

Corporal Levi was a hero of the people. He was Humanity's Strongest soldier. He was the one who made people dream of a better future with no walls, no titans, no devastation. So who was he to deny this young man's hope?

The next thing Eren knew was that he was being pressed against the wall, Levi's hands planted at either side of his face, his nose practically touching the older man's. His pupils blown wide, Levi looked wild – this was a look seen on him only when he battled the titans. The usually calm and collected man was gone, replaced by this creature. For a moment, Eren thought that Levi would actually kiss him, however, the Corporal dipped his face into the crook of Eren neck and inhaled. When he breathed out, a small gust of hot air skirted around Eren's exposed collarbone and the titan shifter felt goosebumps travel up and down his entire body.

"You actually showered before coming here, brat," Levi concluded, distancing him from Eren's neck. He looked up at Eren who was panting harshly several inches above him. Eren gave him a hurried nod and Levi tsked in satisfaction before pushing himself away from the wall, and away from the titan shifter. "Get on the bed."

He heard Eren shuffle hurriedly to the bed before he turned, sliding off his cravat and popping the buttons on his army pants. He hated the fact that the harness was such an annoying piece of engineering – he sometimes wondered whether one of its functions was to prevent quickies from happening on the battlefield. Nevertheless, his deft fingers found the straps and soon he was left standing in nothing but his underwear, eyeing a fully-clothed Eren Jäger who seemed frozen on his bed. Levi stepped forward and the tension is Eren's muscles increased visibly. With a small chuckle, the shorter solder sat on the edge of the bed.

"Jäger, you cannot even look at me without shaking like a damn mutt. You sure you're up for this?"

"I told you to use my first name," was the only response he got, and soon enough Eren's trembling fingers reached for the hinges of his own harness. The poor boy was so tense that his fingers didn't seem to work properly, and Levi had to roll his eyes at that.

"Do you need help with this, brat? I don't have all night, some of us actually like to get our sleep," he said sharply before putting his hands on Eren. He heard a sharp intake of breath and looked up to see Eren's eyes fixed on him. Levi sighed: with this much freezing up, they would be lucky if they got to the actual fucking before the walls turned into dust of old age. "Look, Eren, I am not your fucking coach, I am not a mind doctor, and I am not your fucking mother. So if you came here to cuddle and talk about your feelings, I suggest you look for it elsewhere."

"Could you at least try to be sensitive?" Eren replied incredulously. "This is my first time."

"No. I am not sensitive. I am not kind. I am not a fucking monster in bed either. If those were the reasons why you thought this would be a good idea–,"

"I told you about my reasons."

"Then, what is the problem, you brat?"

Levi watched as Eren bit his lip and braved popping open the buttons on his pants before sliding them off. He shrugged out of the leather straps and his shirt in record time, considering the fact that his fingers were still shaking dramatically. Tentatively, Eren placed his clothing onto the bedside table and reached a hand over to take Levi's. The senior officer had half a mind to pull away, to remind the brat that this was nothing more than a physical tryst between them, however, the look on Eren's face, the complete and bare rawness of his trust and complacency, made him bite back a nasty remark. Instead, he squeezed Eren's hand briefly and shifted over on the bed so that he was hovering above the younger man, his legs at either side of his body, propped out on outstretched arms.

"How far have you gone with anyone?" He asked quietly, his breath mixing with Eren's. The room suddenly felt too hot, despite the fact that it was late fall and neither of them was wearing much.

"I, um… I kissed a girl once," Eren replied shyly. He must think me a total child now, he lamented before he was startled out of his thoughts when Levi's lips covered his own. It took a moment for his brain to start working again, but when it did, Eren closed his eyes and reveled in the sensations. This was different than that sloppy kiss he'd had with Mikasa – the two of them had been kids testing how the adult way worked, and both had come to the conclusion that it didn't. Levi's lips were not wet with saliva, they were warm and dry, and slightly chapped, less so than his own, of course. The angle changed and Eren's breath caught in his chest when he felt his lower lip being entrapped between Levi's teeth gently. Not too much to actually bite down, but enough to make him feel all kinds of sensations he'd never experienced before. It was then that he realized he was just lying there doing nothing, so he wrapped his hands around Levi's forearms and put pressure on his part into the kiss, moving along with Levi's ministrations. He was slightly startled when Levi's tongue made contact with his mouth, seeking entrance, and Eren granted it timidly. He would have never thought that Levi, being the clean-freak that he was would ever put his tongue into someone else's mouth. But he did. And it felt wonderful.

When Levi drew away, Eren let out a small whine, but it was cut off when Levi's gentle weight collapsed onto him and he felt that very mouth encircle one of his nipples. It felt strange, but strangely good, and all Eren could do was squeeze his eyes shut and raise his hands over his head to grab at the pillow. He felt Levi's tongue travel around his left nipple, then his right, then dip into his skin over his sternum. As Levi's mouth traveled lower, Eren felt the pressure inside him increase and when he could no longer take it, when the pillow was not enough to anchor him, he dug his fingers into Levi's hair. That made the officer pull away from his lower belly and regard Eren cooly. Eren did not apologize, nor did he let go, instead, he just fisted Levi's hair tighter. With an eye-roll, Levi went back to what he was doing.

Eren let out a shaky moan, what he suspected to be the first of many tonight, when Levi mouthed him over his underwear. He felt cold fingers slide under the rim and slowly peel away the cloth. Cool air hit his dick and he barely managed to let out a breath before the sensation of something hot and wet engulfed it, making Eren lose all sense and coherence again.

"Oh… Levi," he sighed, the name foreign but not unpleasant on his lips.

Levi liked how responsive the brat was, with his little moans and noises that he let out whenever the older man did something particularly pleasurable. He closed his eyes and recalled the years and years of practice he'd had doing this, long before he'd joined the Survey Corps, long before he'd left the shitty underground of Sina, long before he'd had any sort of dignity that would have prevented him from getting money any way that he could. It was like riding a bicycle, Levi thought darkly to himself, his throat accepting Eren's member deeper and deeper each time. He placed his hands gently on Eren's hipbones to prevent him from thrusting up, not that it helped much, since the kid's fingers were tangled in his hair, pushing him to take more and more. He decided not to protest, he could do it, and he had promised Eren a proper fuck. The kid had been right – they could die tomorrow, and it would be a pity for the titan shifter to pop his clogs before he got laid.

He pulled away from Eren's dick, eliciting a whine from the younger man.

"As much as you were enjoying this, undoubtedly, sex is supposed to be pleasurable to both partners," he said sternly, his voice a little hoarse. Yes, wouldn't that be an ideal world. Eren gave him a bashful smile and Levi simply scoffed. He reached for the vial of oil he'd set on the bedside table in preparation for this and poured it over his fingers before reaching down to stretch himself.

"Wait!"

"What is it, brat?" Levi asked, annoyed. He really did want to move this along, even though tomorrow was Saturday, he had a ton of bureaucratic shit to plunder through before he could thoroughly enjoy whatever was left of his weekend by the time he was done.

"I thought–," Eren eyed his lubricated hand.

"What?"

"I thought it would be, um, you know, you in me," Eren said quietly, looking up at Levi.

Oh. That had never crossed Levi's mind. The brat was so domineering, he was sure that Eren would want to take as much control as he could, given the situation. Plus, Levi had more experience in the matter – not that Eren needed to know that.

"For your first time? I suggest you stick to the basics, Jäger," Levi said cooly. "Or do you object that much?"

"Er, no. I just thought you'd want to–,"

"Not your job to think, Jäger," Levi said with an air of finality before slowly sliding two fingers inside himself. It had been a while, he couldn't lie, he knew that it would burn a little more than it should – but not more than usual, he reminded himself, before adding another finger swiftly. He watched Eren's reaction through half-open eyes. The boy seemed enraptured in what was going on, his eyes never leaving Levi's hand which repeatedly emerged and disappeared between his thighs. When he knew this was going to be as good as it got, Levi placed himself over Eren, and slowly guided his dick into his hole. The familiar sensation made him tremble finely, and he hated the loss of control he had for a moment before he got a grip on himself and slid down fully. Eren let out a groan, his eyes squeezing shut.

"Oh, Sina!"

Levi felt a bit smug at the moment – this was the type of smugness he had not felt felt for a long time. When the other person, the one supposedly in charge of the situation, lost all coherence and submitted to Levi's ministrations. That meant that Levi was good at what he did. Despite the fact that Eren was just a brat with zero experience, the feeling of accomplishment warmed Levi from the inside, and urged him to move.

Soon enough, both of them were panting, Eren from pleasure and Levi from exertion. It was clear that the brat was not going to last – it was a miracle that he'd lasted that long, anyway, but suddenly Levi felt a hand on his shoulder, pressing him down. He realized that Eren was aiming for another kiss and he jerked away, sitting up. He should not have done this in the first place. Kisses were dangerous territory. They were addictive. Kisses meant attachment.

"Levi?"

"No," the older man said flatly before returning to his position and burying his face in Eren's neck. "That's not going to happen again."

He was thankful that Eren didn't question him and instead thrusted his hips into him, suddenly hitting his prostate and eliciting an unbidden, wanton moan from him that surprised even himself. Oh, Sina. He felt Eren stiffen underneath him, and comprehension hitting him, and before he knew it, Eren's hands were on his hips, his fingers digging into the white flesh, and every time he entered Levi's body he hit that very spot that made Levi groan and moan and curse. This was bad. This was very, very bad. That had definitely not happened in a while, because Levi had never allowed himself to get lost in pleasure. Bliss means ignorance. No control. No control means getting hurt –,

He heard Eren let out a growl and felt the younger man's come paint his insides. The warmth and the feeling of Eren's fingers on him sealed the deal and for a moment, Levi's body was caught up in a state of complete detachment from reality. He felt himself shake, he heard himself curse, and then he knew he was collapsing on top of the younger man, his breath coming out in small pants.

They lay like this for several minutes, trying to catch their breaths. Levi felt Eren still inside him and he was reluctant to pull away when he did – he had to. Don't give the brat any ideas. He got off the bed, his knees still a bit shaky, and made his way over to the shelves to get a towel. The familiar motion set him back into the present. Sex. Done. Clean up. Kick out. That was how it worked, and that was what he knew. He rubbed his own come off his skin first before tossing the towel at the brat, who was still trying to calm himself. The cloth fell onto Eren's stomach and the boy looked down at it, confused.

"Clean up. I'll wash the sheets," Levi said curtly before he reached for his underwear and shirt. He felt Eren's eyes on him. "What?"

"That's it?" Eren looked at him incredulously, and Levi almost felt bad. Almost.

"Did you want me to dance? Do a handstand, perhaps? I'm not here to entertain you, Jäger."

Eren's eyes shuttered in understanding and he took the towel, starting to wipe himself off.

As he left five minutes later, dressed and only slightly disheveled, the only thing he said to Levi was:

"It's Eren."