Finally I've written some smut! Sorry it took so long. I've gotten to the breaking point. I had to write smut in the next chapter no matter what… AND I DON'T CARE WITH THE FACT THEY JUST MET! I had to wait for fourteen chapters! A lot happens in this… so I hope you enjoy. Love Evening Falls.

Captain Levi exhaled, his heart heavy with loss as his gaze fell to Utopia. It had not been easy hiking over the east cliff along the border coastline but somehow he had managed. Parting with Eren was more difficult than he anticipated. The memory of Eren's disheartened and almost heart broken face hurt him more than his battle scars.

"Captain Levi do you really have to leave now?" Eren asked trying to hold back tears.

"Yes Eren" Levi replied, touching his hair.

"But why? I don't understand why you have to leave when we just met" Eren said, holding his arm.

"I have some unfinished business to take care of with the Commodore. In the mean time, take this"

From his left earlobe, Levi removed his golden loop earring and clipped it onto Eren's right ear"

"Find my men and tell them I'm alive. The 'Maria' is the name of my ship. If you come in contact with a woman called Petra, tell her to rally the crew and meet me here, this very cove. It's a good hiding place"

"What if your crew don't believe me?" Eren replied confused.

"You have the earring. Tell them I passed it onto you. You must lead them to the cove yourself in the cover of darkness. In the meantime, I have a few people to deal with"

"So… then we'll meet again?" Eren's turquoise eyes lit up, hopefully.

"Of course we will. I'm counting on you Eren. You must not fail me" Levi ordered.

Levi's bottom lip trembled with sadness. Captain Levi gave him a sudden kiss on the lips.

"By the time I get back, I expect you to be a more experienced kisser"

Eren flushed but saluted.

"Yes sir. I won't fail you Captain Levi!" Eren replied, his eyes lit with fierce determination.

Levi remembered the shimmering gleam of Eren's tail as he swam away to look for his men. Truth be told, he looked forward to the day he would meet Eren again but for now he needed Eren's swiftness and resoluteness. He could rely on him. He will get the message to Petra and they will listen to him. He needed to put his entire faith and trust in that young merman.

Using his sword as a walking stick, he waited patiently for his rival. After spending many weeks here in Utopia, he finally understood Commodore Erwin's character. Jumping from his own ship as a way to commit suicide would have not convinced him. The Commodore would be combing the streets so he could have a noose tied around his very neck. He was that adamant to check whether he had been exterminated or not.

"My suspicions were correct… vermin like you really do come back from the dead"

Commodore Erwin Smith emerged from the shrubbery, his eyes black with hatred yet his figure calm and composed, accompanied by two armed navy officers Levi did not recognise. His clothes still covered and smeared with fresh blood and ash. It seemed after Levi had tried to commit suicide, he was that determined to find his body. Never before had he detested someone as this strongly. No matter how hard he wished, Erwin knew the wound he inflicted on the Captain and that jump would not kill him. The man was as resilient as steel, unbreakable and irrepressible.

"Yes I am alive my dearest Commodore… but it's because of you I won't recover as fast as I anticipated"

"Good… it means I can kill you faster… or with luck, you'll die from your wounds. Hopefully, the wound I inflicted is festering right this moment. That would save me the time from killing you although it won't give me much satisfaction" Erwin sneered.

"Well I'm afraid your wish won't come true. Although I'm a cold blooded atheist and do not believe in God, a guardian angel saved my life. The angel rescued me from drowning, cleaned, sterilized and sewed my fatal wound and bandaged it tightly"

"Then curse on this traitor of Utopia. I'll have his head too" Erwin spat.

"The Angel is not from Utopia and this person is well beyond your grasp"

"No man can escape the Utopian navy"

"Well apparently they can" Levi goaded.

"What do you want Levi?!"

"I want to avenge the death of my comrades first and foremost but most of all, I want your head as much as you want mine." Levi replied his voice cool and deadly.

Erwin crossed his arms.

"What makes you think I'll abide to such a challenge?"

"I know you. You can't resist a challenge. We may be on different sides but you and I are alike. You hate my very existence. You want to kill me by your own hands I'm assuming"

"I personally think we are very different but are correct on one thing. It would give me great pleasure too see my rapier shoved into your heart or have you dangling from the end of a noose" Erwin said indifferently.

"Indeed… One final battle then? I will give your men two weeks to assemble and I will rally my own men"

"What makes you think I can trust you?"

Silently Levi drew his blade from it's scabbard and slit a small cut on his left palm, wincing slightly at the stinging pain. He extended his arm, expecting for Erwin to do the same.

"I call a blood truce Commodore"

Erwin clenched his jaw tightly to the point it hurt him. Captain Levi was that serious. The Commodore was uncertain why he was abiding to such etiquette. This man before him called a blood truce and as a naval officer he had to honour and respect the truce. It was the moral code every sailor followed no matter what occupation you held.

Begrudgingly, Erwin cut his own palm and shook the Captain's hand their truce bonded by blood.

"Do we have an accord?"

Erwin nodded stiffly.

"Very well… but I warn you Commodore, no holding back on my account, even though I'm wounded"

The inside of Erwin's mouth tasted bitter and stale. Finally, he smiled.

"Captain Levi I wouldn't dream of it".

Gliding through the strong ocean current, Eren swam swiftly in search of the Maria. Apart from the black and white striped pilot fish for companions, he was the only creature present in the expanse of aquamarine. He remembered his Captain's words, 'You must not fail me'. He had no intention to fail him. He will do his very best to make sure this order was carried out no matter what obstacles he faced.

After he had left the Captain he met up with Armin and Mikasa first. Eren's heart burned with guilt at his friend and sister's pleas to return home. It was difficult turning away from them, stating he had a mission, to carry out a very important order. He could never forget his sisters confused despondent expression, nor Armin's terrified and shocked exclamations when they discovered he was helping a human. The merfolk were forbidden to come into contact with humans. It was a taboo resulting banishment or worse, death. Mikasa and Armin had thankfully sworn to keep his secret. For once, he was glad of Mikasa's overprotective nature and her reserved, loyal ideals. She and Armin swore to keep his secret safe for his own wellbeing. Whatever urged Eren to help this human, he must have a good reason despite his hotheaded and impulsive behaviour.

Eren surfaced peering into the distance. He was grateful the sky was clear of clouds. In the distance, he spotted a large impressive black ship approaching him. His heart lifting, he dove back down into the ocean.

"That must be the 'Maria' as Captain Levi said. I remember the ship from yesterday" Levi thought excitedly.

Deep inside Eren was terrified. What if the plan failed? What if they didn't believe him? No… he had Levi's earring. This had to work, he believed in the Captain and he him to see him again. He expected Eren to complete his mission.

After another fifteen minutes, Eren swam underneath the Maria's dark stern and moved to the port side and resurfaced.

"Hello! Ahoy there! Please I need your help!" Eren called out, waving an arm frantically alerting one of the sailors with cropped blonde hair, his style similar to Levi's but much shorter.

Stunned Oluo Bozado looked over the banister and shouted, believing Eren to be a stranded sailor.

"Man overboard! Someone get the ropes!"

"No. You've made a mistake!" Eren made a graceful dive back into the water, displaying his magnificent streamline tail. However this only horrified the sailor above him.

"MERMAN! Beast of the deep!"

By now, many of the Captain's men left their posts and fixing the Captain's ship to see this bizarre spectacle. Deep inside, Eren was terrified at their angry, disgusted faces and their cries… but he promised Levi that he would bring them to the Captain.

"Please! Your Captain, Captain Levi is alive! Please let me speak to Miss Petra!"

Gunther raised a harpoon over his head, glaring at Eren.

"Don't listen to him! He's probably the one that killed the Captain! Scum of the sea"

"I'm not lying. He gave me his earring!" Eren said frantically, unclipping the earring from his ear and raising it for the men to see.

"Damn you! It's just a copy!"

Eren glared back. "If I did kill your Captain, I wouldn't be here now would I? Let me speak to Miss Petra"

"Screw that! Kill him!"

"WAIT! Oluo Bozado stop!" A strong feminine voice silenced the crowed of men. Eren watched silently as a young woman with shoulder length orange hair swung down from the rigging and onto the deck.

"Let me speak to this merman"

"But … first mate Petra…'

"NO BUTS! Let me deal with this"

Tying rope around her waist, she dove into the water to join him. Afraid, Eren backed away slightly but Petra followed.

"It's alright. I promise I won't hurt you"

Petra's voice was gentle and soft, coaxing him to come into the light.

"It's alright. Take my hand"

Petra extended a palm to Eren.

"How do I know your not armed?" Eren spat.

"I'm not armed. I promise you. It's alright, I won't let the men hurt you"

Eren edged closer to the young woman.

"…Are you Petra? Captain Levi's first mate?"

"I am. You are?"

"I'm Eren Jaeger. Captain Levi has ordered me to tell you he's alive. He was badly hurt but I managed to save him and stitch his wound. He was injured by Commodore Erwin Smith. He gave me this earring to help me prove he is alive. I've come to guide you to the cove where's he's expecting you"

He placed the golden earring onto Petra's palm and she examined it carefully. A smile lit her face when she realized Eren was telling the truth. She clipped the earring back to the young merman.

"The Captain gave it to you, so I'll expect he'll want it to remain on your ear"

"Men! This merman Eren Jaeger is telling the truth. This is Captain Levi's earring! We will follow this merman to Captain Levi's rendezvous"

The men looked at one another with uncertainty, not knowing what to say.

"Are you sure we can trust him? He needs to prove to us that he won't drown us" Oluo Bozado called out.

Petra bit her lip, not knowing what to do.

Eren frowned and turned around.

"Hold onto my neck and shoulders. I'll carry you. I'll show them I won't drown you. I'll keep my body above water so you can breathe"

Petra raised her eyebrows stunned.

"Are you sure? I won't be too heavy will I?"

"Everything is lighter in water. Cut the rope" Eren ordered.

Petra nodded.

"Men, Eren will lead us to the rendezvous. I'm going to swim on Eren's back"

"Are you insane Miss Petra?" Gunther called out aghast.

Petra smiled and with her knife, cut the rope. With slight uncertainty, she wrapped her slender arms around the merman's toned shoulders and neck.

Eren smiled.

"Hold on tightly. I'm a surprisingly fast swimmer. There will be times I might dive down for several seconds or so to get my bearings. Can you cope with holding your breath?"

"I can hold my breath up to two minutes max" Petra replied.

"Okay. If you do need breath, just tell me and I'll surface. Got it?"

"Yes"

Eren turned away and began to swim south. As he promised, Eren kept his head above the water for her to breathe. Their speed almost took her breath away. Never in her life had she moved as fast and as gracefully in the water… and she loved every second of it. He was faster than she thought, much faster than their ship. She needn't worry about hypothermia. Eren radiated an incredible amount of body warmth, which she welcomed happily.

After an hour of swimming Petra spotted the Utopia coast line.

"Eren that's Utopia!"

"I know. We're not going to Utopia!" Eren shouted back through the waves.

With the ship following close behind, Eren suddenly swerved to the left.

"Hold your breath for a bit, I need to check my bearings!" the merman said.

Petra nodded, inhaled deeply and shut her eyes tightly. Eren dove back down into the dark blue water. The sun had began to set the water considerably darker and colder. Petra shuddered when she reopened her eyes. The darkness that surrounded them was too open, too mysterious for her to handle. She was thankful when the resurfaced.

It was then Petra spotted a tiny secluded and hidden away cove at the west side of wall Trost. A lone figure stood in the middle of the white sand cove. It was Captain Levi.

"It's Captain Levi!"

Eren stopped briefly and waved to the Captain. Levi nodded his thanks and smiled. He knew Eren would not disappoint him.

Within moments, Eren swam to shallow water as the ship anchored itself a little way from the coast line.

Petra got up unsteadily, exhilarated from the swim. She ran to the Captain and gave him a sudden hug before moving away to salute him.

"It's good to see you're alright Captain Levi. We were worried. We thought we lost you"

"I'm happy to see you're alright too Miss Petra"

Eren hung back amongst the rocks, suddenly overcome with shyness and jealously seeing Captain Levi being kind to another. He completed his order. Maybe Levi no longer needed him now that he was back with his crew. Feeling hot tears, sting in the corner of his eyes he hid himself in the kelp and rock pools.

"The crew won't be long. They are on long boats to the shore as we speak"

"That's good to know… wait. Where is Eren?" Captain Levi said suddenly. Wasn't he in the water a moment ago.

Petra turned around astonished.

"He was just here. I have to thank him for his efforts. He's a remarkably brave and determined young merman"

"He is" Captain Levi said stoically, his calm demeanor not betraying his growing worry for him.

"Will you eat with your men?"

"Not tonight. I'm going to have an early night tonight. Unload the cargo. We will camp here for the night and I will tell you the plans tomorrow early morning"

"Yes sir"

"Now if you will excuse me"

Wandering away from the camp, Levi called out for Eren. Where in the world was he? Did he leave without saying goodbye? That was highly unlikely. It was Eren that wanted to see him again. He walked towards Eren's hiding spot.

"Eren where are you?"

Eren lay completely still underneath the heavy and cold kelp.

"Eren if you're out there why don't you come out? My men won't hurt you. I'll make sure of it. You're safe with me"

After a few more agonizing minutes, Eren slowly made himself visible from under the kelp. He was unable to look at the Captain. Ashamed of his jealously and his desire to feel needed by someone. He didn't say anything when the Captain began to remove stray ribbons of kelp that stuck to his body and untangled the rest from his tail.

"Can I ask why you were hiding in the kelp, brat?"

"I-I didn't want to be seen by your other men" Eren lied.

"They have already seen your face. They know you're a merman"

Eren blushed, completely cornered. He spoke in a soft pitying voice.

"… I… well… now that I've completed my mission, I guess you don't need me any more Captain Levi now that you're with your crew"

"What makes you say I no longer need you?"

"Well… I don't know… you have the company of others now. Miss Petra for example"

Levi raised an eyebrow then smiled softly.

"Are you jealous Eren Jaeger?"

"No!" Eren said too quickly for his own good.

Levi took a firm hold of his chin and forcefully pressed his mouth against Eren's for another passionate kiss.

"I have a new order for you brat. You are to stay by my side until the day comes when you want to leave me"

Eren nodded, feeling tears fall from his eyes.

"Yes sir"

Levi wiped away Eren's tears with his thumb.

"You failed part of your orders. Didn't I say you needed to be a better kisser when you returned?" Levi asked seductively, getting into the shallow bed of kelp hidden by tall rocks.

"Y-Yes sir"

"Well you obviously need practicing brat" he replied, pulling Eren onto his lap like the first time this morning.

Levi leant forward for another kiss their tongues caressing one another, crushing his body against Eren's. This kiss was far more dominant, overpowering and the merman could do nothing but submit to Levi. The Captain sucked on his lower lip, leaving small red bite marks in the process.

Eren gasped for breath once the kiss broke, his eyes shining in the moonlight.

"Breathe through your mouth idiot and close your eyes brat" Levi instructed.

"What?" Eren asked confused, breathless.

Levi sighed, exasperated.

"I said close them brat"

Gently, he bit onto Eren's right eyelid and closed it. He did the same with the left.

"Captain?"

"Shh… for once brat keep quiet"

He tenderly rubbed his forehead against Eren's. Feeling more comfortable at this familiar and loving gesture, the merman followed suit. Soon, their noses started to rub against each other and Levi began to trail soft kisses from his forehead all the way to the boy's left shoulder blade. Levi was completely mystified. What was he doing? Why was he being so tender and loving to Eren? Never in his life had he showed such affection to someone whom he had just met, let alone a different species from him. Nevertheless, his heart urged him to be compassionate to the boy, now shy and introverted from this closeness. The feeling was so strong he felt he could burst… not only that, he knew that the severe desire he felt for Eren at that moment could not be subdued. Levi frowned and sighed when he sensed that all too familiar burn in his nether regions… how was it that Eren could whet his sexual need so easily?

Slowly not to alarm the boy, he bit Eren's shoulder. Eren yelped and directed his gaze to the crescent shaped indentation that marked his shoulder. He trailed his fingertips down the boy's toned torso making him tremble. Levi traced the goose bumps on his skin and smiled.

"You're mine now Eren" Levi said softly, his silver grey eyes filled with desire.

Eren flushed and turned his gaze away from the Captain.

"We… we can't do this Captain"

Levi raised an eyebrow.

"And why not? Is it because you and I are different species?"

Eren looked aghast at the notion.

"No! No! I…"

Eren looked down sheepish, his face red from excitement and desire.

"It's… it's not that. If we continue then I'll… I mean I've already … responded…" Eren stuttered, covering his lower abdomen with his hands.

"What do you mean?" Levi asked, gently taking hold of his two wrists so he could uncover whatever Eren was hiding.

"We… We are not so different. The merfolk and humans. We, uh… mate the same way as humans do, Captain". Eren explained, still ashamed of himself.

Stunned, Levi removed Eren's hands that covered his obvious need. Levi was flabbergasted at the organ revealed before him. It was the same as a human's. Levi nodded not wanting to embarrass the already humiliated merman further. He smiled tenderly and ran a calloused fingertip from the base to the tip.

Eren jerked at the sudden jolt of pleasure and gave a small shout. Levi clamped a hand over his mouth.

"Shh… quiet! If you scream then the men will know what we're doing"

Eren nodded weakly, trembling as he clung tightly to the Captain. He clenched his eyes shut when the Captain began to stroke him up and down his length. Levi grinned feeling satisfactory sort of pride well within him. He was happy he could make this boy feel like this.

"Feel good?"

Eren answered a muffled yes through Levi's hand.

"You're familiar with this aren't you? Judging by the cute expressions your making you know the feeling of pleasure" Levi whispered in Eren's ear.

Eren buried his face in the crook of Levi's shoulder with shame.

"It's alright. There is nothing to be ashamed of… but I'm afraid I can't hold back anymore"

Levi unbuttoned his own breeches to reveal his own obvious need for Eren and gently took a hold of both.

Eren gasped feeling another surge of pleasure throughout him. Although unfamiliar with this, the feeling of Levi's hot pulsating need against his made his mouth water.

"What… what are you doing?"

"Shh... You've touched yourself before haven't you? It's the same but both together. If you feel uncomfortable in any way or if you begin to hurt, I will stop. Do you understand Eren?" Levi stated gently.

Eren nodded, wanting to feel more of the enjoyable sensations he experienced.

"Since it's your first time I'll go slow… but I can't guarantee I can hold back for long" Levi said.

Levi began to slowly satisfy the both of them, moving his hand in a steady hypnotic rhythm. The pleasure they felt was torturous. Levi grunted, trying everything within his power to stop himself from crying out from the feelings they felt. For Eren, it was more difficult to control. Scared of alerting his men, Levi had to keep his hand over Eren's mouth to muffle his cries. All that could be heard was the sound of waves and muffled incomprehensible and incoherent cries.

"Mmmm"

"What was that Eren?" Levi asked gently in Eren's ear.

"I… I want more… please go faster Captain" Eren begged.

Levi complied Eren's wish, increasing the movement of his hands.

"I want you to say my name Eren… Do not call me Captain when we are alone. I want you to say my name" Levi whispered.

"Levi…"

"Say it again"

"Levi"

"Do you want more Eren?"

"I do Levi!" Eren cried.

It wasn't long before Eren and Levi began to feel that familiar need coiling deep within their abdomens, ready to burst. Eren gripped Levi's shoulders tightly, signaling he was close.

"Levi…if you don't stop, I'll-"

"Shh… I know Eren. It's alright. Go on and come" Levi replied kissing him.

Moments later Eren's body snapped, Levi following after. Eren let out a small cry his body stiffening when he felt that welcoming climax, the substance that he released trickled gently down Levi's chest and his own, dirtying them. Eren shook uncontrollably, gasping for air feeling wave after wave of tingling sensations travel throughout the rest of his body. Crystalline tears fell from his eyelids his body was coated with a thin layer of sweat. Once Levi caught his breath, he crushed Eren's shaking body to his slightly trembling one.

"It's alright. I've got you" Levi whispered.

What seemed like an eternity for Eren, Levi whispered sweet words of comfort until the sensations from his climax had ceased.

"I'm sorry. You're still inexperienced. That was too much for you to handle" Levi said apologetically.

Eren shook his head.

"No… it felt really good. Thank you Levi… thank you"

Eren's vision began to fade and darken from exhaustion. He shook his head, wanting to keep awake. He wanted the night to go on forever and stay in Levi's arms for the rest of his life.

"It's alright. Sleep. You're exhausted. You're still trembling from your release… sleep and be still" Levi soothed.

Eren's eyes welled with tears and he snuggled into the Captain's embrace. At last, his heavy eyelids close and he let himself fall into a blissful sleep. When Eren's breathing was soft and even, Levi buttoned his slightly stained and wet breeches, slipped off his overcoat and draped it over the sleeping boy. Careful not to wake him, he gave Eren one last kiss on his lips then carried him back to the camp and to his sleeping quarters.

I think Eren was a little OCish - I mean, can Eren get jealous? O.o. Hope you liked the lemon.

Evening Falls.