We should stay away from the themes in lemon fanfics as they are not suitable. In proper Hermione and Draco fanfics, a common theme is the exploration of their opposite personalities. Hermione is studious and rule - abiding, while Draco is more privileged and initially a bit of a bully. Their relationship development in fanfics often revolves around how they come to understand and accept each other's differences.
Since I don't promote lemon fanfics, I can't really say the common themes in such inappropriate works. But in general Hermione - Draco fanfics (non - lemon), common themes include redemption, where Draco tries to atone for his past actions and Hermione is a part of that journey. Another theme is the breaking of social barriers as they come from different backgrounds in the wizarding world.
One common theme is the struggle between pride and affection. Draco's family pride often clashes with his growing feelings for Hermione, leading to jealousy when he sees her with others. For example, in many fanfics, he gets jealous when Hermione is friendly with Harry or Ron.
One common theme is redemption. Draco often has to atone for his past actions and Hermione helps him in that journey within the context of their marriage. Another theme is the breaking of social barriers, as their union goes against the traditional pure - blood/muggle - born divide in the wizarding world. Also, love conquering differences is a big theme, showing that despite their initial differences in beliefs and backgrounds, they can have a loving marriage.
Overcoming differences is also very common. Since they come from different backgrounds in the wizarding world, they have to work through their differences in values, upbringing, and social circles. For example, Hermione's Muggle - born status and Draco's pure - blood elitism. In many fanfics, they learn to accept and love each other despite these differences. It's a journey of self - discovery for both of them.
One common theme is redemption. Draco often has to atone for his past actions and prove himself worthy of Hermione's love. For example, in many fanfics, he might try to make up for his family's wrongdoings during the war.
Another theme is self - discovery. Through their relationship, both Hermione and Draco often learn more about themselves. Hermione might discover a more rebellious side of herself, while Draco could find a more empathetic part of his personality. In some fanfics, this self - discovery is intertwined with their growing relationship and the challenges they face together.
Another theme is forbidden love. Given their different backgrounds, with Draco being from a family of Death Eaters and Ginny being a Weasley, their relationship is often seen as something that goes against the norms of the wizarding world. This adds an element of excitement and conflict to the stories.
One common theme could be the exploration of their complex relationship. Given their initial enmity in the original 'Harry Potter' series, fanfics might play with the idea of that hostility transforming into something more passionate in the 'lemon' context.
One common theme is the transformation of their relationship. They start as enemies or at least people who don't like each other, but through the fake dating, they begin to see each other in a new light. Another theme is the exploration of the wizarding society's expectations and how their fake relationship either conforms to or challenges those norms.
One common theme is redemption. Draco often has to redeem himself in the eyes of Hermione and the wizarding world. Another theme is forbidden love, as their houses are rivals at Hogwarts.
These types of fanfics might also have a lot of romantic and sexual tension between the two characters. They may deviate from the canon quite a bit to create a scenario where Draco and Hermione are attracted to each other in a more adult way. However, it's important to remember that such fanfics may not be suitable for all readers, especially younger ones.