Exalt (v.) to hold in very high regard; speak or think very highly of
His form of 'love' meant discarding his own displeasures, seeking only the comfort, the exultation of his partner. Levi was a single-minded creature; once his thoughts set on a path, they moved in a straight line and simply mowed down anything that might arise in their way to completion.
Love-making was no different. He would get himself into an absolute mess and look glorious doing it, because that was what pleased Eren the most. He would be selfish and beastial about it, because that made Eren burn from the toes up with desire; he would bare his throat to those teeth, because being able to mark him was important for whatever reason.
The reason didn't matter. If it meant that Eren was his, that was enough. If it created this insanely unreasonable bond that he craved, that was all that mattered.
Their positions- in or out of bed either one- didn't matter. The way Eren would forget his keigo and snap into an innocently crude mess was the exact reaction that had Levi seeking the next higher pleasure. What would make him even more speechless? What would make him pant harder, scream louder? Would it be paying attention to his sensitive neck, or lavishing his dripping manhood? Those were the only answers he sought.
It didn't matter if he was bloody, covered in sweat and seed in the end. He often was, though the quiet way Eren fretted over him was adorable enough to make up for it. He would devote himself to raising up what he loved; like holding crystals to the sun to make rainbows, he would hold this child in the light until he fractured the world outside the walls. He would devote all his strength to him, until his last breath. He would come home bloody, short of limbs, whatever the hell it took until he stood at the top of the world.
The king be damned. Mankind be damned. Somewhere in his heart, he wanted only him to have the glory that would be rightfully his.
AN: A little more blunt than my previous pieces; as this is from Levi's perspective, I those to take something a little closer to his manner of speaking. Experimenting with these two is quite satisfying, so I hope to post more in the future~
keigo:a polite and formal way of speaking. I'm not positive that Eren is actually using keigo in the series, but he does use very polite language when speaking to Levi. Excuse my guesswork.