What are the common tropes in punishing sub Draco fanfiction?

I'm not sure which specific 'punishing sub Draco fanfiction' is available. You could try searching on popular fanfiction websites like Archive of Our Own. They have a wide range of Harry Potter - related fanfictions, and you might be able to find something that fits this theme there.

One common trope is the 'enemies - to - lovers' arc. Since they start as enemies in the original series, fanfiction often takes this route. Another trope is the 'forced proximity'. Maybe they are locked in a room together in Hogwarts, which forces them to talk and understand each other. There's also the 'redemption' trope for Draco. He is often shown as trying to atone for his past actions and Hermione helps him in this journey, which in turn leads to their closer relationship.

One common trope is the 'enemies - to - lovers' dynamic. Since Draco and Hermione were initially at odds in the original series, in fanfiction, their flirting often starts as a form of sparring or challenging each other, which gradually turns into something more affectionate. For example, they might trade sarcastic remarks that slowly become flirty banter.

I'm not entirely sure as 'diaper fanfiction' is a rather strange and niche genre. It might involve some sort of fictional scenario where a character named Draco is being punished in a context related to diapers, but this is not a common or mainstream concept.

Most likely not. The concept of diaper - related scenarios in fanfiction, especially when combined with punishment, seems rather inappropriate and not in line with general standards of good taste.

There are several tropes. Firstly, the 'slow - burn' trope is quite common. It takes time for Hermione and Draco to develop feelings for each other. The 'secret relationship' trope also appears frequently. They have to keep their relationship hidden from their friends and families. Also, the 'character growth' trope is present. Through their relationship, both Hermione and Draco grow and change, learning from each other's differences.

One common trope is the 'enemies - to - lovers'. At first, Draco and his arranged partner might dislike each other because of their different backgrounds or past interactions. But as the story progresses, they fall in love. Another is the 'hidden feelings' trope, where Draco might have some secret feelings for the other person even before the arranged marriage is announced.

The 'fish - out - of - water' trope can also be present. For example, if fem Harry is the one pregnant, she might struggle with the physical and emotional changes in a world that is still male - dominated in many ways. And Draco might be out of his element in dealing with a pregnant Harry, especially if it goes against his family's expectations. There could also be a 'found family' trope as they navigate this new situation together and form a new kind of family unit.

A popular trope could be the 'forbidden love' aspect. Since Hermione is from a different side (the more 'good - natured' side in the original story) and Draco is from the Malfoy family, there could be stories of forbidden relationships within the family tree. It could be that Hermione's family had some sort of relationship with the Malfoys that was frowned upon in the wizarding society, but it led to the connection between her and Draco in this fanfiction - created family relationship.

One common trope is jealousy. Draco often gets jealous easily when other characters show interest in the reader. For example, if a Gryffindor boy talks to the reader, Draco will quickly step in. Another trope is over - protection. He'll try to keep the reader out of dangerous situations, even if it means going against school rules. And there's also the 'mine' trope, where he'll openly declare the reader as his in a very possessive way.