One common theme is the struggle between good and evil. Castiel is an angel, and Meg is a demon, so there's always that conflict. Another theme is redemption. Meg might be seen as someone who could be redeemed through her relationship with Castiel. And of course, love is a major theme. Their relationship, which is so unexpected, often leads to stories of love conquering differences.
One possible plot could be that the pregnancy is a result of some sort of magical or otherworldly event. Castiel might feel a strong sense of responsibility to protect Meg and the unborn child. He could use his angelic powers to keep them safe from various threats in the Supernatural universe, like demons or other malevolent forces.
Yes, there could be. Fanfiction writers are known for their creativity and often come up with all sorts of scenarios. But it's important to note that this might be a very niche and perhaps controversial concept within the fan community. Since Castiel and Meg have a complex relationship in the original source material, some fans might be interested in exploring this extreme scenario in fanfiction.
I really like 'A Meeting of Opposites'. In this fanfiction, the author explores the idea of Castiel and Meg having to work together on a mission. It's a great read because it plays with their personalities. Castiel's naivete and Meg's cunning are both highlighted and as they interact, it creates a lot of tension and some really cool plot twists.
One popular 'Meg and Castiel fanfiction' story is 'The Unlikely Bond'. In it, Meg and Castiel are forced to work together against a common enemy, which leads to a slow - building understanding and an unexpected connection between them. Another is 'Meg's Redemption' where Meg tries to find a way to redeem herself in Castiel's eyes. It delves deep into her character's struggle and how Castiel plays a part in her journey.
There's a fanfic called 'A Twist of Fate for Castiel and Meg'. In this story, they are forced to work together in a mission that changes their perception of each other. The author does a great job of exploring their characters in-depth. Also, 'The Dance of Angels and Demons' is a fanfic that portrays their relationship in a unique way. It shows how their respective loyalties to Heaven and Hell conflict with their growing feelings for one another.
You can try Tumblr as well. There are many fanfiction writers who post their 'Meg and Castiel' stories on their blogs. Just search for relevant tags such as 'MegxCastiel fanfiction' or 'Meg and Castiel fic'. Wattpad is another platform where you might find some good stories. However, the quality can vary more on Wattpad compared to the other two, but it's still worth a look.
The fanfiction might show Meg dealing with the physical and emotional changes of pregnancy while still being her tough self. She might have to fight off those who would try to harm her because of the baby. Castiel, on the other hand, would be by her side, using his powers when necessary. It could be a story of their growth as individuals and as a couple.
Another popular theme is the power struggle between them. Meg is a powerful demon and Castiel is an angel with his own set of powers. Fanfictions sometimes focus on how they use their powers against each other, or in some cases, how they learn to combine their powers for a common goal, which makes for some really exciting action - packed stories.
Well, it would probably be a very complex and perhaps a bit out - of - the - box story. It would likely explore the reactions of other characters in their world. For example, how would Sam and Dean react to such a situation? And it would also have to deal with the nature of Castiel being an angel and Meg being a demon. There would be a lot of drama and conflict, both internally within the characters and externally in terms of how they fit into their respective worlds.