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.
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 '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.
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.
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.
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.
One possible plot twist could be that Hermione's magical abilities take on a new dimension under Narcissa's influence. Maybe she discovers a different kind of magic that the Malfoy family has secretly been practicing. Another could be that Hermione's relationship with the wizarding world at large changes. She might become more of an insider in the pure - blood society, which would cause a stir among her friends like Harry and Ron. Also, her academic pursuits could shift as Narcissa encourages her to study different areas of magic that are more in line with the Malfoy family's interests.
One idea could be that Harry discovers Narcissa has a secret mission to undermine Voldemort from within. Maybe she's been secretly helping the Order of the Phoenix all along and Harry stumbles upon this knowledge.
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.
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.