The character of Aku could be developed in a 'pregnant Aku in Samurai Jack fanfiction' by exploring how he interacts with the world around him differently. He may become more reclusive as he doesn't want others to see his 'weak' state. Or he could become more aggressive in trying to protect his pregnancy, which would be a new aspect of his character. Also, his relationship with his own power might change. Maybe he has to find new ways to use his magic that don't harm the unborn, which would force him to grow and adapt in ways he hasn't before.
One main theme is leadership. For example, in stories about Sundiata, his leadership skills in uniting the Mali people are a central focus. Another theme is cultural heritage. Mali has a rich cultural history, and in historical fiction, elements like music, oral traditions, and family values are often explored. Also, the theme of trade is common as Mali was an important trading center in Africa.
One idea could be a crossover where Aku accidentally opens a portal to the Naruto universe. Naruto, being the curious and brave ninja he is, decides to explore Aku's world. They could start off as enemies, but gradually come to understand each other's motives and end up teaming up against a greater evil that threatens both of their worlds.
Sundiata is the most important character. He is the hero of the story. His mother, Sogolon Kedjou, is also important as she plays a crucial role in his upbringing. Then there are his enemies like Soumaoro Kante, the cruel king that Sundiata has to defeat.
Well, the themes in 'Sundiata: An Epic of Old Mali Story' include leadership. Sundiata emerges as a strong leader who can lead his people to prosperity. Family is also a key theme. His family's situation, like his mother's support, is important. And there's the theme of destiny. Sundiata is fated to achieve great things and restore his family's honor.
One great Mali historical fiction book is 'The Epic of Sundiata'. It tells the story of the founder of the Mali Empire, Sundiata Keita. It's full of adventure, battles, and the rise of a great leader. Another is 'The Fortunes of Wangrin' which gives insights into the social and economic aspects of Mali's history through the character of Wangrin, a wily and complex figure.
I'm not sure who Aku specifically is in this context. However, 'sexy bedtime stories' could potentially be fictional tales with elements of romance or allure, but without more context, it's hard to say exactly what they're about.