One plot idea could be that Narcissa teaches Hermione about the hidden secrets of the pure - blood families in the wizarding world. This could involve ancient spells, family heirlooms, and the unspoken rules among the old wizarding families. Another idea is that Narcissa, seeing Hermione's thirst for knowledge, decides to teach her some advanced potions techniques that are not taught at Hogwarts, perhaps ones passed down in the Malfoy family.
Perhaps Narcissa teaches Hermione how to navigate the complex social politics of the wizarding world. Given Narcissa's experience in high - society wizarding circles, she could give Hermione tips on dealing with the likes of the Ministry officials, other pure - blood families, and how to use her intelligence to gain influence. This could lead to Hermione becoming more of a political force within the wizarding community.
One plot idea could be that they marry in secret to bring peace between the Muggle - born and pure - blood wizarding communities. They face opposition from both sides at first, but their love and determination gradually change people's minds. Another idea is that they are brought together by a magical accident that binds their fates, and as they get to know each other during the process of trying to reverse it, they actually fall in love and decide to stay married. A third idea could be that in a post - war world where everything is in chaos, their marriage is a symbol of hope and a new beginning for the wizarding world.
One idea could be a story that focuses on Draco's early childhood and how Lucius and Narcissa are trying to shape him into a proper pure - blood heir. For example, they might start teaching him about the importance of family heritage and magic lineage from a very young age.
Another plot could be a time - travel fanfiction. James Potter somehow travels to a time when Narcissa is young and in a difficult situation. He decides to help her, and in the process, they form an unexpected bond. This bond then has consequences for the future as James returns to his own time.
A possible plot for 'Narcissa Malfoy Pregnant Fanfiction' could be the magical aspects of her pregnancy. In the wizarding world, there could be special potions or spells related to pregnancy. Perhaps she discovers an ancient spell that can ensure a healthy and powerful baby, but there are risks involved. And how she navigates these risks while also dealing with the social and family pressures around her pregnancy.
One idea could be a story where Bellatrix and Narcissa are forced to work with Harry Potter due to some dark magic that binds them, and a lemon tree (represented by 'lemon' in a symbolic way perhaps) holds the key to breaking the spell. Another could be a tale set in an alternate universe where they all have to protect a magical lemon that has the power to save the wizarding world.
Well, a plot could involve Harry being raised by Narcissa Black in a world where the wizarding world is more divided than ever. Harry, influenced by Narcissa, has a different view on blood purity. He could be trained in dark arts defenses in a more Slytherin - like way. This would make his battles against Voldemort very different. He might also have a closer relationship with Draco from the start, and they could end up as allies rather than rivals. Plus, Narcissa's influence could lead Harry to have a more nuanced understanding of the Death Eaters, which would add a lot of complexity to the story.
A plot could revolve around Narcissa and Sirius in their Hogwarts days. They could be involved in a mystery within the school, like a series of strange disappearances of students. Since they are both from the Black family, they might have some inside knowledge that helps them solve the mystery, and in the process, form an unexpected bond.
Perhaps they travel back to a time in Hogwarts' history. Harry could interact with his parents as a student, and Narcissa could see a different side of the school. They might end up changing the way certain relationships develop. For instance, Harry could influence his father to be less of a bully, which in turn could have a huge impact on the future friendships and enmities at Hogwarts.
I'm not entirely sure as I haven't read that particular fanfiction. But generally, in such a concept, there could be a plot where Hermione, being in this strange position of being Narcissa's pet, has to navigate through the power dynamics and prejudices of the wizarding world. It could involve Hermione using her intelligence to either resist or find a new way to co - exist in this odd setup.
A possible plot for a Narcissa pregnant fanfiction is focusing on her pregnancy cravings and how she tries to satisfy them in the magical world. This could lead to some humorous encounters, like asking the house - elves to create strange magical - ingredient - filled dishes. Also, it could show her bonding with other pregnant witches or those who have had children, sharing experiences and advice, which gives an insight into the motherly side of Narcissa that we might not have seen much of in the original story.