Well, often there's a theme of self - discovery. As Draco gets taller and bigger, he may start to see himself in a new light. Maybe he realizes he can no longer hide in the shadows like he used to. Also, there might be a theme related to competition. In the wizarding school, his new size could make him more intimidating in duels or Quidditch. This could lead to new rivalries or even friendships as others react to this change.
A frequent theme is the adjustment period. Draco has to get used to his new body. This can involve things like clumsiness at first as he figures out his new proportions. There may also be a theme of acceptance. Some fanfictions might focus on how the Hogwarts faculty and students accept or reject this new Draco. It could create interesting storylines about prejudice or admiration based on his physical transformation.
Often, power dynamics play a big role. Draco, being bound, is in a position of weakness. This can lead to themes of vulnerability and how he copes with it. Some fanfictions may also focus on the mystery behind his being bound in chains. Was it a punishment? A spell gone wrong? Unraveling this mystery can be a major theme. And of course, there's the theme of hope. Despite his chained state, there's always the hope of liberation, both physically and metaphorically.
Writers can use magic as an explanation. Maybe Draco was the subject of a spell gone wrong or a new experimental magic. Another way is to show a gradual change. Instead of an overnight transformation, it could happen over a period of time, like weeks or months, with Draco noticing small changes each day.
Common themes in Draco Malfoy fanfictions include family dynamics. His relationship with his parents, especially Lucius and Narcissa, is often explored. Another theme is the struggle between good and evil. Draco was on the 'evil' side initially, so many fanfictions show his internal battle between following the dark path or choosing a different, more positive way. Also, there are fanfictions that focus on his academic life at Hogwarts, such as his performance in classes and his relationships with professors.
One theme is redemption. The chain and collar could be seen as a symbol of Draco's past misdeeds, and through his journey in the fanfiction, he tries to break free from that and redeem himself. Also, the theme of mystery often comes up. The origin of the chain and collar and their true purpose can be a big mystery in the story, driving the plot forward.
One common theme is the journey of overcoming their initial enmity. In the original story, they are rivals, but in fanfictions, they start to see each other's good sides. Another theme is the secrecy of their relationship, as they come from different 'sides' in the wizarding world. Also, self - discovery is often involved. As they fall in love, they learn more about themselves and what they truly want in life.
One common theme is redemption. Draco, who was often seen as a bully in the original series, is redeemed through taking care of Harry. Another theme is friendship turning into something more. As Draco cares for Harry, their relationship deepens and might develop into a romantic one. There's also the theme of trust, as Harry has to learn to trust Draco despite their past differences.
In these fanfictions, a frequent theme is the power dynamic between them. Hermione is known for her intellectual power, and Draco has his family's status - related power. The exploration of how these powers interact can be interesting. For example, does Hermione's intelligence intimidate Draco or does he learn to respect it? Another theme is the idea of forbidden love. Because of their past as rivals and the differences in their social standings, their relationship is often seen as forbidden. This can lead to a lot of emotional turmoil and drama in the fanfiction.
One common theme is the power imbalance. In many of these fanfictions, the abuser might hold a position of power over Draco, like being in a higher social rank in the wizarding world. This power is often misused to control and manipulate him.
One common theme is redemption. Draco often needs to be redeemed in these stories, as he has done some not - so - nice things in the original series. Another theme is the breaking down of class barriers, as Harry is more of an outsider in the wizarding elite world compared to Draco. And of course, there's the theme of forbidden love, as they start off as enemies.
One common theme is self - discovery. When Draco is scared, he often has to look within himself to find the strength to overcome his fears. This process also makes him realize his true feelings for Hermione. For example, in many fanfictions, his fear of the unknown future with Hermione leads him to understand how much she means to him.