Smile - Petra x Levi x Reader

Note - Obviously there are bad words, this is an SnK fanfic about Levi. There will also be a note at the bottom to not spoil anything!
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Levi sighed in annoyance. It was the usual day of giving cadets cleaning duty for their mischievous deeds, especially that brat Eren. At least he had the lovely company of Petra, a woman that he had come to see as a comrade, and maybe even something more.

Spotting the ginger haired girl who was currently cleaning the horse stalls, he called out to her. “Oi, Petra!”

Flinching at the sudden call, his friend (not that he’d admit it) exclaimed, “Levi-heichou, it’s nice to see you today.” Smiling at him brightly, Petra continued, “So, what are you doing here? Have you come to help me clean the stalls?”

Groaning internally, Levi knew that he did not particularly enjoy cleaning horse shit of all the tasks, but couldn’t bring himself to disagree with her. No, he couldn’t, not with that expecting smile on her face. “Yeah.”

After finishing, the two advanced towards the lunch room. “Petra… how are you doing?” Levi asked cautiously during the walk.

Petra slightly grimaced, but tried to stay cheerful. “If you mean (Name), I think I’m finally getting over it. I’ll miss her though.”

Levi contemplated on how (Name) had previously died a few weeks ago in that dreadful expedition. He still could picture the girl’s grin, almost as bright as Petra’s, though sometimes he could truthfully say that they both had the same smile. As the two walked on, many of the fellow soldiers and cadets stared at the both of them in pity, especially at Petra.

She looked bothered by all the looks, so Levi said, “Shitty brats, stop looking at us like that.”

Petra glanced at Levi, smiling weakly. “Thanks, heichou.” Suddenly the lunch room doors opened, revealing Erwin Smith.

The tall blonde man announced, “Where is Levi? I’d like to speak with him.”

Levi turned to Petra and said, “Sorry, we’ll continue this later.”

Following after the commander, they entered Erwin’s office. Sitting down in his chair, Erwin asked, “So, how are you and... Petra doing?”

Levi simply stated, “We’re fine, Erwin.” Then his eyebrows furrowed a bit. “...fuck, I think I might be in love with her.”

Erwin gave an uneasy smile, and said, “Good luck, then - to the both of you.”

Apparently that was all the commander wished to talk about, and Levi was sent back to his duties. “Che, what was that about?” Levi scoffed, and left to find Petra once again.

“Maybe Erwin wants me to tell her… Fuck no.” However, he knew that he meant exactly the opposite of his spoken words.

“Heichou?” Oh there she was. Damn, she looked so beautiful standing there before the sunset with her coppery hair glowing like a halo. When the hell did he get so poetic anyways?

“I love you, Petra.”

Her eyes widened in pain and anguish. That wasn’t the reaction he was expecting nor wanted. Shaking, she slapped him. “Stop it. Stop deceiving yourself. I’m not her, dammit.”

Levi was shocked, reaching out to her, only for “Petra” to avoid his touch. He began, “Petra-”

“My name is (Name), Levi.” The girl’s amber eyes shone with tears. “I am (Name) Ral, Petra’s twin. The girl you loved died weeks ago on the 57th Expedition, it wasn’t (Name). Heichou, y-you're delusional.”

Levi fell to the ground, something he normally would never do because of the dirt. He asked, “If you’re really (Name), then why did you pretend to be Petra?”

(Name)’s tears overflowed, “Because I loved you. I loved you so much that I thought that I could bare with the pain of you loving me... even though you saw me as someone else. I wanted you to be happy, Levi, and I really thought I could be selfless for once. I was wrong.” The woman, though crying, still managed a broken smile, and continued, “Levi, you need to stop deceiving yourself. I’ve realized that this was not the best course of action, and I’m sorry. I still love you, but please, stop it.”

Her smile was so beautifully tragic that day.

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Note - Sorry for giving readers an physical appearance (Petra-ish), but it was essential to the fic. Next time I write a Levi or SnK fanfic, I’ll definitely allow readers to put in their physical characteristics. ... and I promise for it to be fluffy, as fluffy as SnK can be. Don't kill me!