Previously: Armin meets up with Levi & Erwin for their first threesome encounter…

Notes: Finally, here it is: the first proper smut chapter. And at almost 7k words, it's the longest chapter I've ever posted!

Overall this chapter has a lot of Eruri focus – I feel it's fitting to explore their relationship as much as Armin/Erwin and Armin/Levi. But throughout the story I'll try to keep a balance of all these dynamics!

I hope you enjoy XD

Chapter 9: A Private Performance

Erwin

Erwin led their guest down the hall towards the bedroom. Levi strode ahead, intent on making some last minute adjustments to the room. Armin's hand trembled in Erwin's, and his breathing was shaky.

"Are you alright?" Erwin asked, hovering outside the bedroom door. "It's perfectly fine if you're having second thoughts." He squeezed the smaller hand in his, hoping to convey his reassurance. As badly as he wanted tonight to go ahead, it was only on the condition that both Levi and Armin were still comfortable with it.

"No, I still want to do this." Armin tilted his head upward to meet Erwin's gaze. Those beautiful sky-blue eyes were wide and imploring. "I'm just afraid I might mess this whole thing up."

"Don't worry, Levi and I are nervous too. It's not every night we have a handsome guest join us in the bedroom."

Armin's mouth quirked at the compliment. But his brows furrowed again, as he glanced down and fiddled with his sleeve. "What about you and Levi, are you both sure too?"

Is he still worried about Levi's behaviour earlier? Erwin frowned, considering how to reply.

The man might be innately shy, but he was well able to speak his mind. Erwin had overheard some of Levi and Armin's conversation after he left the room to make tea. Armin had openly voiced his concerns about Levi's attitude, which impressed Erwin. Being direct was often the best way to deal with his partner, and he was glad Armin had picked up on that.

Still, Erwin couldn't blame the young soldier's lingering doubts. Levi's moods take a lot of getting used too, he thought wryly, recalling their own early relationship. But it's well worth the effort. I hope Armin will think so too, if everything goes well tonight…

"You don't need to worry," he said firmly. "Levi will tell us if he changes his mind. And you can rest assured that I'm still very interested."

Armin glanced away. "It's just… I don't want to cause any trouble between you two. Are you sure it won't be weird having me here?"

The truthful answer was yes, it would be very weird having another man in their bedroom.

Armin's words from earlier in the evening floated back to him: 'It's really confusing to keep track of two people's feelings at once.' Well, Erwin couldn't have put it better himself.

This threesome was a dream come true - a fantasy he'd never expected to have the opportunity to live out. But managing both Levi and Armin's feelings was exhausting. He was playing the role of an emotional mediator; constantly trying to ensure both were comfortable and happy to progress with things. He just hoped it would all be worth it. His main focus was to give both men a satisfying night, whether or not they decided to continue this arrangement.

Erwin cupped Armin's jaw, stroking his cheek with a callused thumb. "I can't promise that it won't be strange. But Levi and I have discussed the whole thing in depth; I wouldn't be going ahead with this if he wasn't fully interested too. Trust me, we both very much want you here."

This earned a radiant smile from Armin, lighting up his whole face. His cheeks were still rosy from their light intimacy on the couch, and his hair stood up in messy tufts after being attacked by Levi's eager hands.

Walls, does he have any idea of how breath-taking he looks right now? Erwin had to restrain the wild thoughts rushing through his head – such as pushing Armin against the wall and kissing him senseless.

"Are you two coming in or what?" Levi called from inside the room. His voice was agitated, no doubt all this waiting was putting him on edge.

Guilt stabbed at Erwin for even thinking of getting started with Armin without Levi present. He gave Armin's hand a tight squeeze, before leading him into the bedroom.

The Captain was carefully arranging some candles around the room to create a delicate, shadowy glow. He had insisted on burning incense in here earlier, and the sweet scent of jasmine lingered in the air. There was a bottle of oil and a stack of fresh towels on the beside cabinet.

They'd already changed the bedsheets and tidied the place before Armin came over. Not that it needed much tidying, Erwin thought wryly. Levi's meticulous standards have rubbed off on me. But he appreciated his partner's sharper attention to detail at times like this. They wanted to create a pleasant, comfortable environment for their guest, to help put him at ease.

"So Armin, do you still want to watch Levi and me first, like we suggested last time?" Erwin asked.

He was sorely tempted to suggest they continue where they left things off on the couch, and invite Armin straight into bed with them. Shame washed through him, and he firmed his resolve. No, that's unfair to Levi. I'm not putting him under extra pressure by changing the plan at the last moment.

And starting things off like this made sense for Armin too – it was a low pressure way to ease him into things, and it might assuage some of his sexual anxieties.

"Y-yeah. That's fine." Armin's eyes were fixed on the bed, where Levi was tugging the bedsheets straight. He was probably wondering why Levi was being so fussy, given how the bed was going to get messed up anyway.

"Is there anything in particular you want us to do?" Levi asked, smoothing down the already creaseless duvet.

"Oh! Um… no. Just, whatever you want," Armin mumbled, leaning against the wall and staring at the spotless wooden floor.

Levi finally accepted the sheets weren't getting any neater, and fixed Armin with a steely appraisal. Erwin noted the way he folded his arms to hide the agitated twitch of his fingers. "We need to be more specific. Are you ok with handjobs, oral, and anal sex? Is there anything in particular we should avoid?"

Armin's mouth quirked with amusement. Which was probably a better reaction than fleeing the room in terror at Levi's blunt interrogation. He covered his mouth to hide his mirth. "Sorry, it's just… this is so weird."

Levi heaved an exaggerated sigh, his expression softening slightly. "Tell me about it."

"Is there anything you'd be uncomfortable with us doing?" Erwin prompted, not hiding his own smile.

Armin sobered as he contemplated this. "Are you… going to do any role-playing?"

He sounded apprehensive. But Erwin discerned the same curiosity he'd displayed at their previous meeting. At least he's open-minded about sexual activities. I wonder what he'd be interested in exploring if this arrangement goes on for more than one night…

He tore his mind away from this exciting prospect. He needed to focus his attention on ensuring tonight went smoothly. There was no point worrying about future encounters right now.

"We'll hold off on any extreme role-play or power play for tonight," Erwin assured him. Then he indicated the small armchair in the corner of the room. "Do you want to sit down?" he asked, his heart hammering. Walls, I can't believe this is finally happening…

Armin hesitated before taking a seat, as if weighing up the decision in his mind. For a breathless moment, Erwin resigned himself to the worst – that the enormity of the situation was simply too much for the young man. Then Armin's face broke into a shy smile, and he settled into the chair. His hands twisted on his lap.

"Well, like you said Armin, this whole situation is a bit strange." Erwin forced a chuckle, as he contemplated the awkwardness of progressing to the next stage of the night. "Levi and I aren't exactly used to performing in front of someone-"

"Holy fuck Erwin, you make it sound like we're putting on a play!" Levi exclaimed.

"Well then how would you phrase it?" Erwin kept his voice courteous, but his brow furrowed.

"He's watching us fuck, there's no point being polite about it. He's already walked in on us once, the kid knows what he's getting himself into."

Erwin squeezed his eyes shut, giving himself a few seconds to moderate his irritation. Levi's nerves made him prone to be argumentative. He wasn't actually annoyed at Erwin. Besides, his partner had a point. "I'm just trying not to be unnecessarily vulgar about it in front of our guest," he explained.

"We're having sex, this isn't a goddamn tea-party." Levi gestured around the softly lit bedroom.

Erwin opened his mouth to offer some conciliatory words, when suddenly Armin burst into nervous laughter.

Levi was not impressed. "Shut up brat, this isn't funny!"

"S-sorry," Armin gasped. He covered his mouth to stifle the noise, his shoulders still shaking.

Levi turned towards the bedside cabinet. "Trust me, you won't be laughing if I get my hands on you later. I'll have you screaming my name in less than a minute."

The tension in Erwin's chest eased, and he stifled a grin at Armin's open-mouthed expression caused by Levi's aggressive flirting. Hopefully he understands Levi means well by teasing him, and doesn't intend it to be cruel.

Levi snatched a towel from the stack on the cabinet and thrust it at Armin. "Feel free to touch yourself or whatever while you're watching us. Just don't make a mess."

Even in the dimly lit room, Erwin was willing to bet that Armin's face had gone bright red. You could have phrased that more gently, he thought wearily. He's not going to do anything if he's terrified of you. For a moment he was torn between reassuring Armin, and checking in with Levi.

He quickly took the few steps towards his partner. Wrapping an arm around his tense shoulders, he leant down to whisper, "Is everything alright? I think Armin's afraid you're going to murder him."

Levi snorted. "Stop exaggerating Erv. I'm sure he's fine." He flicked his gaze towards the young man, and frowned. "Shit, you're right. He looks like he's regretting his life choices."

"Levi, do you still want to do this?" Erwin brushed his lover's fringe off his face, gazing into those thundery grey eyes. "Because I'm only interesting in doing this if you're completely onboard."

"You'd kick Armin and his adorable puppy-dog eyes out right now, if I asked you to?" Levi raised a brow.

"Yes," Erwin grinned, keeping his voice down. "After I apologised for wasting his time first."

"But we'd be shattering his threesome dreams. He'd have to go back to Jean Kirstein, poor thing."

Levi's whole demeanour softened, like a storm that had raged itself out. His muscles relaxed under Erwin's hand. Those grey eyes were glittering with mirth now and his lips tugged up in a sly smile.

He turned his head slowly and appraised Armin. The young man was staring down at his hands, twisting the towel on his lap, probably trying to give the couple some semblance of privacy for their conversation.

"Fuck, this is scarier than facing down a horde of abnormal titans." Levi clenched his jaw and looked up into Erwin's face. He took a deep, steadying breath. "I still want to do this," he said decisively.

Erwin had been fully prepared to (politely) kick Armin out if Levi so desired. It would have been unbelievably mortifying to come so far and then back out. But Erwin only wanted to go through with this if his partner did too. All his fantasies of a threesome involved Levi being an eager participant, and actively enjoying himself.

His heart soared at Levi's affirmation. He placed a light kiss on his lips and murmured, "I love you more than anything, my darling."

Then he got back down to business. He strode over to Armin, who had a distinctly panicky look about him. Erwin shook away the guilt clenching his chest for leaving Armin in suspense. He'd already made it clear to him that Levi was, and always would be, his first priority in this arrangement.

Still, it was only right that Armin be treated with respect and kindness. Erwin smiled warmly at him, and was relieved to see a hesitant smile in reply.

Time to regain control of this situation...

He adopted a tone which he hoped conveyed the impression that nothing was odd about their current situation, and that everything they were about to do was completely normal and not at all embarrassing. Armin would be reassured if he felt he was in safe, competent hands.

Despite the fact that I'm making up the rules of this whole thing as I go along…

"Like Levi said, it's perfectly fine if you want to touch yourself. And after we're finished, you can decide if you feel comfortable to do anything with us." Erwin took Armin's hand, tracing his thumb over the smooth skin. "Remember you can still change your mind about any of this. If you're not enjoying yourself for any reason, tell us to stop. If you want to leave, I'd ask that you wait out in the sitting room for us to talk to you afterwards."

Erwin's heart clenched as he continued. "This is a precarious situation – while we all entered into it as consenting adults, Levi and I have a responsibility to ensure your well-being. So if you decide this arrangement isn't for you, please tell us honestly if we did anything to upset you. We have no intention of taking advantage of you, and the last thing we want is you walking away from this with negative feelings."

He lightened his tone as he reached the end of his prepared speech. "Rest assured, we only want to do this if you can enjoy yourself too. Have you any questions, or is there anything else you want to talk about?"

Armin nodded, absorbing Erwin's words. "That all makes sense. And I promise I'll talk to you if I decide to back out." He licked his lips, glancing around the room. "I don't think I've any more questions… except could we blow out some of the candles? I feel really self-conscious."

"You're not the one getting fucked in front of an audience," Levi muttered. "But less light suits me too." He paced the room, snuffing out a few candles. The room was now lit very dimly, with the edges in shadows.

Standing at the other side of the bed, Levi looked directly at Armin. "Alright Arlert. I can barely make you out. Is that good enough for you?"

"Yeah, thanks," Armin squeaked.

Levi hovered for a moment, then came around the bed. Placing a hand on the young man's shoulder, he gave it a quick squeeze. "Look, don't be embarrassed about this. Actually, it's pretty damn hot if you want to get off on watching your two superiors fucking."

With Erwin's hand still stoking his, and Levi's hand on his shoulder, Armin looked quite overwhelmed. Erwin searched for the right thing to add to his partner's words – something sexual, but also reassuring.

Before he got a chance, Levi leaned down to the soldier's ear and whispered something. A little smirk graced his lips as he pulled away, leaving Armin with a stunned expression.

"What did you say?" Erwin asked.

"Oh, nothing Commander," Levi replied innocently, strolling towards the bed and sitting down.

Meanwhile, Erwin could actually feel the heat coming off Armin's blushing face. He avoided Erwin's gaze, but his mouth twisted into a satisfied smile.

Erwin felt a surge of pride for his lover. Whatever Levi said, it certainly had the right effect…

He moved his free hand up to caress the smaller man's hair, fingers drifting to the soft undercut at the back. Copying Levi, Erwin leant down and whispered in his ear.

"If it makes things easier, pretend we don't even know you're here. And if you're not comfortable touching yourself, we're happy to help finish you off afterwards." He trailed his fingers along the sensitive skin on the nape of Armin's neck, causing him to shiver.

As Erwin left to join Levi on the bed, his mind filled with a myriad of ways they could pleasure Armin together. Focus on the task at hand, he reminded himself. It was probably too optimistic to expect Armin to be comfortable enough with masturbating while watching them. All the same, Erwin hoped it would be an enjoyable experience for him.

And afterwards, he and Levi could turn the man into a hot, writhing mess on their bed…

Stop thinking about that, and focus on what needs to be done now!

Levi was sitting on the bed with his arms and legs crossed - looking nothing like someone prepared to be ravished in front of an expectant audience.

Erwin sat down next to him. He was acutely aware of Armin's eyes on them, despite barely being able to see him in the shadowy corner. His heart raced as all his dormant doubts rose up and swept over him. Hiding his uncertainties was second nature to him in public settings. This situation, on the other hand, was proving to be a lot more challenging…

I convinced myself this wouldn't be so difficult – that it would feel sexy and forbidden to have Armin watching us. But instead, I feel ridiculous! How am I supposed to help Levi relax when I can't do it myself?

Erwin took a deep breath, and wrapped an arm around Levi's stiff shoulders. What was the best way to ease into this? Should he just hold him for a while, and try to forget there was another person in the room?

Perhaps we were too ambitious in our plans for tonight, he realised with a sinking heart. This whole 'demonstration' idea is an absolute disaster…

He was still debating his next move, when Levi tilted his head up and kissed him.

Levi

Levi was totally fucking this whole night up.

He'd shared Erwin's excited anticipation of tonight, and they'd discussed it in detail over the last few days. But now the time had arrived, Levi's nerves were overriding his senses, and he reverted into his most natural behaviour – as a hostile, emotionless asshole.

Somehow, (mostly thanks to Erwin's soothing charms), they'd managed to keep Armin's interest. Levi's agitation had started to melt while the three of them were chatting and drinking tea. The flame of his desire rekindled when Armin claimed he was too warm and removed his jacket. This simple act triggered something in both Levi and Erwin, and it led to some gentle touching on the couch.

But since moving into the bedroom, Levi's trepidation returned in full force. Still, he assured his partner he wanted to go through with it.

You've faced worse situations than this. Just go for it, and have no regrets! he told himself sternly, gathering up his courage.

So when Armin complained about the lighting, Levi tried to be gracious. (He refrained from mentioning that he'd spent an hour last night testing out the optimum arrangement of candles in the dark bedroom.)

He blew out a few candles, as per Armin's request. But the little squeak of 'thanks' he got in reply made it clear his efforts to be nice were not good enough.

Levi felt like a complete bastard for taking his nerves out on the poor brat all night. Erwin was used to these moods, but Arlert was not. How could Levi expect him to decipher all the mixed signals he was throwing at him?

Since entering the bedroom, Erwin had reverted back to his gentlemanly behaviour of light touches and gentle words. Arousal raced through Levi as he recalled how flustered Armin had gotten earlier on the couch, under their exploring hands.

Erwin's being too fucking polite about everything! We need to remind our guest of what's in store for him after this little 'show'…

And so he squeezed Armin's shoulder and offered some kind words. "Look, don't be embarrassed about this. Actually, it's pretty damn hot if you want to get off on watching your two superiors fucking."

Encouraged by the small quirk of Armin's lips, he leaned in and whispered, "Keep in mind Erwin will probably be imagining that I'm you during all of this. The man behaves like a complete gentleman, but you should know he's dying to make you scream even more than I am."

Armin's dazed expression was extremely gratifying. Levi moved towards the bed, answering Erwin's query about what he said simply with, "Oh, nothing Commander."

His satisfaction evaporated as he sat down on the bed, and contemplated what was about to happen next. I suppose Armin had a good point about dimming the lights... But right now I'm wishing I could blow out all of them.

Erwin finished speaking softly to Armin, and approached Levi on the bed.

Fuck! How do we even start this?

Some part of his mind could appreciate the hilarity of the situation. The Commander of the Survey Corps and Humanity's Strongest Soldier were about to fuck in front of a curious, mild-mannered little librarian.

Of course, that's assuming Erwin and I are able to go through with it…

Levi needed to stop overthinking it, or he'd be paralysed. Erwin sat down on the bed next to him, and they locked gazes. Erwin had dropped his confident mask and his brow was furrowed. Fuck. He was nervous too.

Levi knew his partner wasn't lying earlier. He could say right now that he didn't want to go through with this threesome, and Erwin would politely explain to Armin that they'd changed their minds. And they would never speak of the topic again, if that's what Levi wanted.

The prospect of calling the whole thing off sent a wave of sharp disappointment through him.

Damn it, I want this just as much as Erwin! And probably Arlert, too. I just feel so vulnerable with him watching…

Something shifted inside him. He was Levi Ackerman – Humanity's Strongest Soldier. He was damned if he was going to let a bit of embarrassment get in the way of what he wanted!

More importantly, this was a chance to finally do something for Erwin. The man worked hard to satisfy Levi's desires, and deserved to indulge in one of his own.

So seizing the initiative, he leaned up and pressed his mouth hard against Erwin's.

His partner took a moment to respond. Then he slid his hands to the back of Levi's head as he returned the kiss. He tasted like the chamomile tea they'd shared earlier. Erwin's strong arms wrapped around him, and they both tried to lose themselves in this familiar act. Levi glanced towards Arlert, but he could barely make him out in the shadowy corner. Pretend he's not there, he told himself.

Levi willed the flame of his desire to devour his insecurities, and by some miracle it began to work. He pushed Erwin down on the bed, and climbed on top of him. Their kisses grow fiercer, hands fisting in fabric and hair. Levi ground teasingly on Erwin's lap, eliciting groans from the larger man.

In their conversations about tonight, Erwin had urged him to take charge of their encounter, setting a pace he was comfortable with, and Erwin would follow his lead. And so, the Captain decided it was time to take things further.

Pinning Erwin down with his legs straddling his hips, he unbuttoned the man's shirt and pulled it off. He trailed wet kisses slowly down his chest, scraping his teeth over the hard nipples. Erwin's breathing was ragged, his hands combing through Levi's hair, fingers stroking the soft undercut.

It's so dark in here, it won't be hard for him to pretend that I'm Arlert…

They'd played this game the last few nights - with Levi pretending to be a not-so-innocent Armin, trying to seduce his Commander. The thoughts of Erwin fantasising about this right now sent a delicious thrill through him.

Levi took a few deep breaths to calm his racing pulse. Uncertainty was creeping back as he debated what he wanted to do next. He amused himself by picturing Erwin telling him to dedicate his heart to the task.

If I'm going to do this in front of Armin, I'll give him the best fucking show I can.

And so, he shifted down Erwin's body, and opened his trousers. He carried out these familiar actions as quickly as possible, refusing to allow his hammering heart to get the better of him. He tried to focus on other details – like the gratifying fact that Erwin was rock hard already. Knowing how much his partner wanted this spurred Levi's determination. He pulled out Erwin's cock and barely hesitated before wrapping his lips around it.

Erwin's grip on Levi's hair tightened, but not uncomfortably so. He groaned his partner's name encouragingly as Levi established a rhythm. Interestingly, he called him Levi, not Armin; despite Levi making it clear to him earlier that he was fine with being called Armin during this 'demonstration'. Erwin probably didn't want to set any high expectations for the poor young man watching them.

How typical - even in the throes of passion, the man is constantly thinking about everyone else except himself!

Levi stroked the base of Erwin's cock in time to the movements of his mouth, mimicking the sensation that he was engulfing the whole thing. Because there was no fucking way Erwin's massive cock was ever getting fully down Levi's throat without him choking on it. This solution was a trick he'd need to teach Armin too. (Presuming he ever got in a situation where he was sucking Erwin's dick, of course.)

Armin had been mostly silent up until now. But Levi picked up on his increasingly heavy breathing. Watching his handsome Commander coming undone by the Captain's mouth and hands was probably the most obscenely erotic thing he'd ever seen in his innocent life. He wondered if the young man had overcome his shyness enough to start touching himself. The image sent a pleasant shudder through him.

After a few minutes, Erwin asked him to stop. Levi pulled away and winced at the fluids that had dripped down his chin onto his shirt. Erwin leaned over to the bedside cabinet, grabbed a towel and handed it to Levi. He gratefully wiped away the mess.

When he was done, Erwin leaned in close. "Can I return the favour?" he asked.

His husky tone rekindled the fire in the pit of Levi's stomach. "Yeah," he murmured.

Erwin didn't need any more encouragement than this one-word confirmation. He gripped Levi's waist, and shifted him forwards so he was sitting at the edge of the bed. Then he knelt down on the floor in front of him, tugging his trousers and underwear down to his thighs.

Levi's face burned as he recalled that Armin had already seen Erwin kneeling before him like this, when he walked in on them in the office. Did Erwin decide to switch to this position for that very reason?

Levi didn't have much time to contemplate this, however. The sinful sensation of Erwin's mouth on his cock seared away any lingering misgivings. He squeezed his eyes shut and bit his lip against the pleasure. He'd resolved not to make too much noise. He didn't want Armin hearing Humanity's Strongest moaning like a goddamn slut.

Yes, he was fully aware Armin had already heard him do this in the office. But this time, knowing the brat was watching, he was determined to hold onto some semblance of restraint.

His plan was totally spoiled by his infuriatingly attentive partner. Erwin was used to Levi being very vocal when he was enjoying himself, so he redoubled his efforts. Soon he was engulfing Levi's entire length with each motion, his eyes gleaming as he maintained eye contact with his lover.

That bastard! He can't even suck a cock without dedicating his goddamn heart and soul to it!

"Fuck... Erwin!" Levi cried out, breaking his resolve to stay quiet. He twisted one hand in Erwin's hair (now an utter mess, he noted smugly), and clasped his broad shoulder with the other. Who the fuck cared what Armin thought anymore? All he wanted was Erwin's blissfully hot mouth on his cock, stoking the flames of the heat building in his entire body.

Then an unexpected noise drifted over from Armin's direction. It was a breathy little sound, somewhere between a gasp and a moan. There was no doubt about it - that sweet, angelic-looking boy was getting himself off on watching his Commander sucking his Captain's cock.

Erwin paused his efforts for a moment, looking distracted. He was evidently just as shocked as Levi at the sinful sound that had escaped Armin's lips. It occurred to Levi that the young man might be embarrassed if he noticed them stopping to listen, so he gripped Erwin's hair and growled, loud enough for Armin to hear.

"Did I say you could stop, Commander?"

Erwin's eyes darkened with lust, and he returned to his task. Armin's breathy moans reached them again, more frantic this time. Perhaps he was imagining Erwin in between his own legs? Either way, he seemed to be enjoying Levi's dominant behaviour.

One of Erwin's hands was squeezing Levi's muscular thigh, while the other desperately stroked his own straining cock. Gone was the composed, gentlemanly Commander. Only Levi was lucky enough to see this wild, unrestrained side to the man. And now Armin was witnessing it, too.

An irresistible jolt of power surged through Levi at having these two gorgeous men under his control. Yes, they might both be more intelligent and sophisticated than him. But he was capable of reducing them to this primal level, where all they could think about was exquisite release.

And Levi knew exactly how to send both of them over the edge.

He'd discussed with Erwin earlier whether or not to have penetrative sex tonight. They worried it might make Armin uncomfortable, since he'd never done it before. But they also wondered if it would put some of his fears to rest. In the end, they decided to see how things played out on the night. And Armin himself had indicated earlier he wasn't opposed to it.

From the delirious sounds Armin was making, he was definitely enjoying what they were doing right now. Levi would bet his year's wages that the boy would love to see more.

"Show Arlert how good you are at fucking me," Levi ordered, the demand coming out a little whinier than he'd have liked.

Erwin pulled his mouth off his soaking wet cock, and smirked up at him. "Yes, Captain," he said in a deep rumble.

He stood up, towering over his lover. He kicked off his trousers and underwear, and in one swift motion, gripped Levi's too and pulled them down his legs and onto the floor. Levi quickly tugged off his shirt too, trying not to think too much about Armin's curious eyes on his fully exposed body.

Then Erwin pushed Levi back so his top half was lying on the bed, with his legs dangling over the edge. Leaving him lying there panting like dog in heat, Erwin grabbed a pillow, and then the bottle of oil on the bedside cabinet.

When Erwin returned, he lifted Levi's hips and slid the pillow under them. Then, gripping Levi's thighs, he spread his legs and stood between them. Levi impulsively hooked them around his waist. The larger man spread some lubricant on his fingers, and carefully teased Levi's entrance before slipping one of his slick fingers in.

Luckily, Levi had the foresight to prepare himself after his shower earlier, before Armin came over. He'd known if they did decide to fuck in front of him, the extra pressure of someone watching might make the preparation side of things a lot more difficult. He had to admit, as much as he'd been eagerly anticipating tonight, he hadn't expected to be this turned on.

It didn't take long before Erwin had Levi writhing on the sheets, moaning incoherently as he brushed his prostate.

"Fuck me, Commander," he demanded, gritting his teeth to stop himself from begging.

Erwin dutifully obeyed.

He started slowly, large hands clutching Levi's legs wrapped around his waist, squeezing the firm muscles. Despite the preparation, it still took Levi time to adjust to Erwin's massive cock inside of him.

"Walls, you look so good Levi," Erwin panted. He gazed down at his lover's body, eyes full of adoration.

The discomfort of Erwin's intrusion slowly eased. As he rubbed up against his prostate, Levi closed his eyes and hissed out a startled breath.

"Harder, Erwin!" he cried, forgetting about their light role-playing. All he wanted was to be fucked into oblivion by this man.

Levi's dominant act dissolved as Erwin broke down his restraints. With each deep thrust, he felt himself getting closer and closer to release. He was reduced to a moaning, squirming mess as his lover pounded into him.

Erwin leaned forward and gripped Levi's hips, slamming them down hard to meet his thrusts. They were both moaning each other's names now, completely caught up their shared pleasure. Soon their cries were joined by Armin's breathy little gasps. The young man sounded as close as they were.

Between Erwin pounding relentlessly into him, and the sound of Armin's evident enjoyment of the scene, Levi knew he couldn't hold out much longer. Suddenly, Armin let out a long, unrestrained series of moans; an unmistakable signal that he had just finished.

The intensity of these wanton noises pushed Levi over the edge. With a final broken moan he finished too, riding out his orgasm until Erwin came inside him soon after. The larger man leaned forward over Levi, panting and sweaty. Levi was a mess too – covered in sweat and his own semen.

Erwin pulled out carefully. Then he lifted a trembling Levi into a sitting position, and sat next to him on the edge of the bed. Dipping his head, he left small kisses along his jaw and down his neck. "You were so unbelievably good," he sighed.

"You too. And I think our audience would agree," Levi replied in an undertone. He embraced his partner for a few moments, before the stickiness of the fluids on his legs and stomach became too much for him to handle. "We both better tidy up."

Erwin nodded, and glanced in their guest's direction. 'We're just going to clean up now Armin, we won't be long.' There was a mumbled noise of assent from Armin.

They washed quickly in the adjacent bathroom and emerged back into the dark bedroom. Erwin pulled on some pyjama trousers, and Levi followed suit. Then Erwin dipped his head down to Levi's ear. "Should we invite Armin to join us now?" he murmured, hot breath tickling his ear.

"Fine," Levi sighed, feigning annoyance. "Let's see how much the brat enjoyed our little show."

He felt Erwin's chuckle against his skin. "If you call him a brat to his face, I'll bend you over this bed and spank you. I don't care if he's watching."

"That'll probably make him come again," Levi said under his breath. He tried to hide the fresh excitement Erwin's words sparked in him. His partner was only joking - spanking probably wasn't something they'd be doing with Armin around anytime soon.

They'd need to start things off cautiously, checking that Armin was alright with everything. Erwin had suggested they just cuddle with him, or perhaps give him a massage, before they initiate anything intimate tonight. At least until he made it clear he was ready for more.

That's if he still wants to get involved at all... But after all that racket he made, I'm pretty certain he's still interested.

Or at least, Levi hoped so. Despite the awkwardness of the situation, the prospect of Armin joining them was still very appealing. Levi was impressed that Armin had masturbated while watching them. He must have been extremely turned on to have pushed past his self-consciousness…

"Armin? Would you like to join us?" Erwin asked, his voice low, warm and inviting.

There was a pause. "Um, ok," Armin replied, barely above a whisper. The boy sounded mortified, or else completely overwhelmed.

Luckily, Erwin Smith was the most charming bastard Levi had ever met. The Commander moved over to where the young man was seated. Levi could just about make out his large silhouette in the dark corner of the room, saw him place a hand on what was likely Armin's arm, and heard his low reassuring words.

Whatever he did, the man must have worked his magic, because he came back to the bed leading Armin by the hand. The boy was biting his lip, gaze flickering around the room, taking in the discarded clothing on the floor and the rumpled bedsheets. He glanced at Levi's bare chest, then quickly away.

"Do you need to clean up?" Erwin asked.

"I-I used the towel." Armin held it up awkwardly. Erwin took it and put it into the laundry basket. "But, um… could I wash my hands please?" Armin stared at the floor, his expression radiating shame at having to discuss such humiliating matters.

It's hard to believe this blushing boy was making the world's most sinful noises only minutes ago…

"Of course," Erwin gestured towards the bathroom.

"Armin, stop acting embarrassed. We told you it was ok to touch yourself," Levi said gruffly. "We take it as a compliment that you liked the show."

Unfortunately, Levi's attempt to be soothing only succeeding in ruffling the boy further. He stared at him wide-eyed before heading into the bathroom.

Damn it. Why do I keep making such a bad impression on him?

Suddenly the clothing strewn on the floor was impossible to ignore. Gritting his teeth, he began to sort through the mess, folding some items on a chair and tossing others in the laundry basket.

Erwin stepped up behind him, arms snaking around his waist and chin resting on his head. "Are you sure you want to carry on with this?" he asked quietly. "We can always end things here."

"No, I want to do this." Levi squeezed his eyes shut. "It's just strange having someone else here. And…" he tried to sort through the muddle of emotions coursing through him. "And Armin's obviously still a bit on edge around me. Right now I can't tell if he's genuinely interested in me, or if he's just agreed to this threesome so he can be with you. I don't want him to be intimate with me out of any sort of obligation."

Erwin kissed the top of his head. "We'll take things slow, and won't force him into anything. He seemed happy enough with you on the couch earlier. I think you both just need to relax again."

Armin emerged back into the room. He glanced at the couple embracing, and quickly away.

"Would you like to stay?" Erwin asked, loosening his grip around Levi. "Or have you had enough?"

Armin bit his lip, then nodded. "I – I'd like to stay. If that's still ok?" He looked pointedly at Levi.

"It's fine," Levi said. Then, pushing himself to be more reassuring, he added, "We were hoping you'd say that."

"Do you want to get into bed?" Erwin suggested. His kind tone betrayed a hint of eagerness.

A small smile quirked Armin's lips, and he walked towards the side of the bed.

"Wait, take your clothes off first," Levi said.

Guilt shot through him as the boy stared back with huge eyes. After a moment Armin replied, "I thought we were taking things slow?" He crossed his arms, his stance hesitantly defiant.

Damn it, he's gotten the wrong idea! "This is nothing to do with that. It's just not hygienic to wear clothes in bed," Levi clarified.

Erwin glanced between the two of them, frowning. "Do you mind if he changes into something else instead? He could borrow some pyjamas."

Levi shrugged. "Yeah, I suppose that's fine."

Erwin's clothes would be comically huge on the slender soldier, so Levi rummaged around his own clothing, feeling a shiver at the thoughts of Armin wearing something of his. He handed the young man some loose pyjama trousers and an old, clean shirt. "Here, is this ok?"

Armin accepted the clothes with a nod. Levi expected him to change in the bathroom, but he turned his back and started pulling off his shirt. The other two men gave him some privacy by looking away until he was finished.

Afterwards, Erwin didn't hide his pleased grin at seeing Armin wearing his lover's clothes. Levi had to admit, they actually fitted him reasonably well. He also noted with approval that the young man had folded his discarded clothing onto a chair.

Armin climbed into the large bed and lay in the middle, blinking around as if unsure where to settle his gaze. The perfect picture of innocence, Levi thought.

Let's see how long that lasts...

Notes: Special thanks to Erwin Smith - for demanding his own POV scene at the last minute, and forcing me to completely re-write the first scene for him!

So I've drafted sex for later chapters, but this is my first time producing and posting a fully edited smut scene. I'm still discovering exactly what works best for me – for instance, I prefer to focus more on emotions and thoughts than the physical act. I really enjoy the role-play/power play elements though (and of course including some bonus humour). Hopefully I'll gain even more confidence as this story progresses.

Please share your thoughts on the smut and story/characters, I absolutely adore hearing your thoughts! I hope you are enjoying the story so far.

PS: You'll be happy to hear the next chapter FINALLY has three-way smut 😊