One common theme could be Deku's growth. In many fan fictions, even those with unique concepts like 'hung deku', Deku's journey to become a stronger hero is often explored. It might show how he overcomes new challenges and develops his powers further.
Another theme could be growth. Deku is constantly growing as a character. In these fan fictions, his relationship with Bakugo's mom might contribute to his emotional or personal growth. Maybe she offers him advice or support that he doesn't get from other characters. And also, there could be themes of unexpected relationships. It's an unusual pairing, so exploring how such a relationship forms and what it means for the characters involved is likely to be a theme.
I'm not sure about specific 'hung deku fan fiction' stories as there are so many fan fictions out there. You could try searching on popular fan fiction websites like Archive of Our Own. They usually have a wide range of My Hero Academia - related fan fictions which might include what you're looking for.
One common theme is friendship. Their relationship starts as friends in the 'My Hero Academia' universe, and many fanfics explore how that friendship evolves. Another theme is growth. Both characters are on a journey of becoming heroes, and fanfics often show how they grow together and support each other in that process.
One common theme is friendship. Despite their initial rivalry, fanfics often explore how Bakugo and Deku form a deep bond. Another theme is growth. They both grow as heroes and as people in these stories. For example, Bakugo learning to control his temper and Deku getting stronger.
In 'villain deku fanfiction', a frequent theme is the subversion of expectations. Since Deku was initially seen as a pure - hearted hero, seeing him as a villain completely turns that on its head. Another theme is the power struggle. He has to fight against the heroes he once called allies. The theme of identity crisis is also there. He is no longer the Deku everyone knew, and he has to redefine himself as a villain. There's also the theme of the dark side of heroism, showing that the very qualities that could have made him a great hero can be twisted into making him a terrifying villain.
One common theme is their mutual growth. They both are on the journey to become great heroes, and fanfics often explore how they inspire and help each other to grow. For example, in many fanfics, Uraraka's positive attitude helps Deku when he's feeling down about his progress.
One common theme is empowerment. Female Deku is often shown as a strong and capable hero, breaking gender barriers in the My Hero Academia universe.
Well, a frequent theme in 'agent deku fanfic' is the balance between his hero life and his agent duties. He has to figure out how to be a hero in the public eye and an agent behind the scenes. Also, friendship is a theme. His friends might not know about his agent work, but they still support him in other ways, and sometimes he has to protect them without revealing his true role. There's also the theme of facing greater and more complex threats compared to his normal hero work as an agent.
Often, there is the theme of inspiration. Deku is very inspiring in the original story, and in fanfiction, he can inspire Shoto to be a better hero. Also, self - discovery. They both are on a journey to discover more about themselves, their powers, and their place in the hero world. In fanfiction, this journey can be elaborated on in different and interesting ways.
One common theme is the development of relationships. Since it's a harem concept, it focuses on how Deku forms connections with multiple characters. Another theme is often growth, not just for Deku as a character but also for the members of his harem. They all grow together in different ways.