One common theme could be friendship development between Soul and Blackstar with a touch of the 'lemon' aspect adding some romantic or more intense emotional elements.
There are also fanfictions that deal with the theme of rivalry. Soul and Blackstar have a bit of a competitive streak, and some stories play up this aspect, showing how their rivalry can be both a source of tension and a driving force for their personal growth.
I'm not sure about specific 'Soul x Blackstar Lemon' fanfiction. You could try searching on fanfiction - specific websites like Archive of Our Own. There might be a good chance to find some interesting works there.
Well, Fanfiction.net is also a place to look. However, the search function might require some patience. You need to search specifically for 'Soul' and 'Blackstar' in the relevant anime or manga section and then filter through the results to find the lemon fanfictions. Keep in mind that the quality can vary widely.
The appeal might lie in the exploration of the relationship between Soul and Blackstar in a more adult or spicy way. It gives a different perspective on their characters and their interactions that we don't get in the original work.
Common themes in 'heary and soul lemon fanfiction' often include the exploration of the characters' hidden desires. The 'heary and soul' aspect might bring in themes of deep - seated emotions, loyalty, and the struggle between different aspects of one's self. And of course, the 'lemon' part may involve themes of sensuality and romantic or sexual tension between the characters.
A common theme is friendship. Despite their differences, they form a bond that helps them face challenges. For example, in many stories, they learn to rely on each other's strengths.
A common theme is Crona's self - discovery. In many of these fanfictions, Crona, who is a complex character in the original Soul Eater, goes through a journey of understanding their own feelings, especially in the context of a romantic relationship which is emphasized by the 'lemon' aspect. Another theme is the exploration of forbidden love, as Crona's character has a lot of dark and mysterious elements, and a romantic relationship might be seen as something not quite in line with the norm in the Soul Eater world.
Growth and self - discovery can also be a theme. Through their interactions with each other, both Kid and BlackStar can learn more about themselves. For instance, Kid might learn to be more spontaneous from BlackStar, while BlackStar could learn about the importance of precision from Kid. These themes often make the 'kid x blackstar fanfic' an interesting read for fans of the original work.
One great place to start looking for Soul x Blackstar fanfiction is Archive of Our Own (AO3). There are many well - written stories there that explore their relationship in different ways, from action - packed adventures where they fight side by side to more emotional and character - study - like fics that delve into their feelings for each other.
Friendship and loyalty are also prevalent. In many fanfictions, female souls form strong bonds with other characters. They rely on each other in battles and in their personal growth. This is important as the Soul Eater world can be very dangerous and having friends to count on is crucial.