Often, trust is a big theme. Since Akashi has his own issues with control and Kuroko has his own quiet strength, fanfics may focus on how they build trust in a relationship. For example, Akashi might have to learn to let go of some of his controlling tendencies and trust Kuroko. Also, the theme of hidden desires might be present. Given their public personas in the Kuroko no Basket world, the fanfic could explore their private, unspoken desires for each other that they only reveal in the context of their relationship.
There are several places where you might find seme Kuroko x uke Akashi fanfic. Fanfiction.net and Archive of Our Own (AO3) are great platforms. You can simply go to the search bar on these sites, type in 'seme Kuroko x uke Akashi' and browse through the results. However, the availability may vary depending on the popularity of this particular pairing in the fandom.
One common theme is power dynamics. The seme is often portrayed as more dominant while the uke is more submissive. For example, in many stories, the seme might be in a position of authority or power, like a CEO or a powerful wizard, and the uke could be an ordinary person. Another theme is the discovery of love. The two characters start off not realizing their feelings and then gradually come to understand their deep connection.
One common theme is the exploration of their complex relationship. Given their different personalities and playing styles on the court, fanfictions often delve into how they understand and support each other off the court. For example, how Akashi's strict and calculating nature might be softened by Kuroko's quiet and observant presence.
One common theme is the power dynamic. Gaara, being the seme, often represents a more dominant and powerful force, while Naruto, as the uke, may have a more submissive role at times. This can play out in battles or in their relationship development.
A common theme is the struggle for independence within the relationship. Kuroko may struggle to maintain his own identity while Akashi is being possessive.
One common theme could be the exploration of their intense emotional connection. Since Akashi and Kuroko have a unique relationship in the original work, in the fanfiction, it might be intensified in a more romantic or passionate way. Another theme could be the contrast between their personalities. Akashi's strong and dominant nature with Kuroko's more reserved and calm self, which can create interesting dynamics in the story.
Love or at least a deep emotional connection could also be a theme. The 'x' in 'akashi x kuroko' often implies some sort of relationship, and in a fanfic, this could be developed into a love story. It could show how they come to understand and care for each other on a deeper level, with various obstacles and challenges along the way that they have to overcome.
One characteristic is the exploration of their contrasting personalities. Akashi is often portrayed as strong, confident and a natural leader, while Kuroko is more introverted and underestimated. Fanfics usually play with how these two personalities interact and complement each other.
I'm not entirely sure what specific 'akashi x kuroko lemon fanfic' you are referring to. But generally, in such fanfics, it might explore a unique relationship between Akashi and Kuroko. Maybe it delves into their character development within the context of a different scenario than the original story.
There's 'Love Beyond Boundaries' which is also a great uke x seme fanfic. It's set in a fantasy world where the two characters from different social strata come together. The story delves deep into their personal growth as they navigate their relationship. It has some really cute and heart - warming moments that fans of this genre will surely enjoy.