One common theme is duty vs. personal desires. Regulus often has to balance what his family wants through the arranged marriage with what he truly desires in life.
One great piece of regulus black arranged marriage fanfiction is 'The Unforeseen Bond'. It really delves into the complex emotions of Regulus in this situation.
The theme of redemption also appears sometimes. Sirius might have made mistakes in the past, and the arranged marriage becomes a way for him to start anew. He has to learn to be responsible in the relationship, and through that, he redeems himself. This can add an interesting layer to the story as it shows his growth as a character.
Isolation is another theme. Given his situation, Regulus often finds himself alone. He can't fully trust his family, and he's also involved in dangerous and secretive activities. This sense of being alone in his struggles is often explored in 'Regulus Black Hurt' fanfiction. It's like he's in a bubble of his own pain, cut off from the world around him.
Isolation is a common theme. In many fanfictions, Regulus is shown to be alone in his struggles, with no one to truly understand what he's going through. His family's focus on pure - blood ideals and dark magic often makes him feel like an outcast even within his own home.
One common theme is his isolation. Regulus often feels alone, whether it's because of his family's secrets or his own actions. Another theme is regret. He regrets getting involved in the Dark Arts and wishes he could have made different choices.
The theme of identity is often explored. She has to figure out who she is in relation to her father, the Black family, and the wizarding world at large. There's also the theme of friendship. In many fanfictions, she forms bonds with other characters that help her navigate through the difficulties. For example, she might befriend characters who knew her father or are also dealing with their own family issues. And power, both magical and political, can be a theme as the Blacks were a powerful family.
Family dynamics is also a big theme. The Black family has its own set of rules and expectations, and Regulus being trans can create a lot of tension within the family. In some fanfictions, we see how his family reacts to his new identity, whether it's rejection or eventually acceptance.
Love and sacrifice are also often themes. The lemon aspects can sometimes be related to a passionate love story, and sacrifice is something that was part of Regulus's character in the original lore. He sacrificed himself for what he believed was right.
Friendship or an unlikely alliance is also a common theme. Harry and Regulus come from different generations but they share a connection through the Black family. Fanfictions like to explore how they form a bond, whether it's a friendship based on mutual understanding or a strategic alliance to defeat a common enemy.
One common theme is family legacy. Since she is the daughter of Regulus Black, there's always the exploration of what it means to carry on the Black family name and all the baggage that comes with it, like the family's dark past and their pure - blood ideology.