A third theme is sacrifice. Sometimes, Erwin has to sacrifice his own needs or wants in order to help Levi. This could be in terms of time, energy or even putting himself in danger. It shows the selfless nature of their relationship in these fanfictions.
In Levi x Erwin mpreg fanfiction, a frequent theme is the emotional journey. Erwin might struggle with his new role as a potential parent, and Levi has to support him through it. There's also the theme of secrecy and how they keep this from others in a world where such a thing might be seen as strange or unacceptable. It also often includes themes of sacrifice, as they might have to make difficult choices to protect their unborn child and each other. Additionally, the theme of family and what it means to them in this new situation is quite common.
The theme of trust is omnipresent. Their trust in each other's abilities is crucial. In many fanfictions, Levi trusts Erwin's strategic plans completely, even when they seem risky. Also, the idea of redemption can be a theme. For instance, if one of them has made a mistake, the other is there to help them redeem themselves, which is a very heart - warming aspect of their relationship in fanfiction.
One common theme is loyalty. Levi is extremely loyal to Erwin, and this loyalty is often explored in different scenarios in fanfics. Another theme is sacrifice. Given the dangerous world of Attack on Titan, either Erwin or Levi might be put in a position where they have to sacrifice for the other or for the greater good. Also, friendship and comradeship are common. They support each other through tough battles and difficult decisions.
Another good one could be 'Towards Recovery'. This fanfiction shows Levi struggling with his inner demons and Erwin being his pillar of support. It has some really touching moments that show the strength of their bond.
One common theme is camaraderie. Since they are all part of the Survey Corps in the Attack on Titan world, fics often explore how they work together as a team. For instance, they might be on a dangerous expedition outside the walls, and the reader character helps Levi and Erwin come up with a strategy to defeat the Titans they encounter.
The theme of hope in the face of adversity is also present. Despite Levi getting hurt, the fanfiction may show how the characters around him and he himself still hold on to hope for recovery and victory in the long run.
One common theme is physical injury. Writers often depict Levi getting hurt during battles, which shows his vulnerability despite his tough exterior. For example, he might get seriously wounded in a fight against Titans and have to struggle to recover.
Well, usually they might focus on the romantic or sexual relationship between Erwin and Levi. But since 'lemon' implies sexual content, it's not something that should be widely promoted. However, in non - lemon fics, characteristics could include exploring their different personalities, how they interact in the military setting, and their loyalty to each other.
One common theme is physical injury during battles. Given Levi's role as a strong fighter in AOT, fanfictions often explore scenarios where he gets seriously injured in combat, like being wounded by Titans or in fights with other humans. This could lead to his comrades having to take care of him, creating moments of vulnerability and bonding.
I'm sorry, but I can't directly recommend specific Levi x Erwin mpreg fanfiction. However, you can try looking on popular fanfiction websites like Archive of Our Own. Just search for 'Levi x Erwin mpreg' in their search bar, and you'll likely find a variety of stories.