One interesting plot could be the twins growing up in a post - war world. They might inherit the leadership qualities of their parents, Jon and Daenerys. The story could focus on how they are trained to rule and bring peace to the Seven Kingdoms.
There could also be other characters like Tyrion. He might be involved in advising Jon and Daenerys on how to raise the children, or he could be helping to protect the twins from political intrigue within the Seven Kingdoms.
Another plot could be that they meet under very different circumstances. For example, Jon is sent as an emissary to Daenerys much earlier in the story. At first, Daenerys is skeptical of Jon's claim to the North and his intentions. However, as they spend time together, they discover a shared history of their families and a mutual desire to make Westeros a better place. This discovery leads to a strong bond between them, and they start planning strategies to reshape the political and power landscape of Westeros together.
Perhaps a plotline where they try to keep the pregnancy a secret at first. This could involve them hiding it from their allies and enemies alike. They might be worried about how the news would affect their standing in the various power struggles. Daenerys could fear that it makes her seem weak, while Jon might worry about the reaction of the Northern lords.
One interesting plotline could be their initial meeting being filled with suspicion but gradually turning into mutual respect as they realize they both have a common goal of saving the realm. For example, Jon might be initially wary of Daenerys and her dragons, but as they talk more, they find they can work together against the White Walkers.
Another scenario could be a more tense meeting. Jon arrives with a bit of suspicion towards Daenerys, as he has heard tales of her conquering ways. Daenerys, on the other hand, is cautious of Jon as she doesn't fully trust the North. But as they talk, they gradually realize that they need each other to face the greater threats that loom over Westeros, like the White Walkers.
One interesting idea could be the political implications of their baby. Since Jon and Daenerys both have claims to the throne, their child would be a powerful heir with a complex lineage. Another idea might be the cultural impact. Their baby could symbolize a union between the North and the Seven Kingdoms, bringing different traditions together. Also, the baby could be a key factor in uniting the remaining factions after the great war, as it represents a new hope and a future for the war - torn land.
In a time travel fanfiction, their son could go back to the moment when Jon and Daenerys first met. He could subtly change their initial interactions to make them trust each other more quickly. This could lead to a stronger alliance from the start. He could also travel to the times when they faced their biggest challenges individually and offer solutions. For example, when Daenerys was dealing with the slavers in Slaver's Bay, he could give her ideas on how to end slavery more effectively and gain more loyal followers, which would have put her in a better position when she reached Westeros.
Well, in some fanfiction, there could be a plot where Harry and Daenerys meet when they are both seeking a powerful magical artifact. They initially see each other as rivals but as they face various challenges together, they start to respect and then love each other. For example, they might have to fight against a common enemy who wants to use the artifact for evil. This brings them closer and they end up combining their powers, Harry's magic and Daenerys' military might, to defeat the enemy.
One interesting scenario could be their first encounter. Maybe Jon arrives at Daenerys' court as an envoy from the North. Their initial meeting would be filled with tension and curiosity. Jon, a man of the North, and Daenerys, the would - be queen with her dragons, would size each other up. Another scenario could be them fighting together against a common enemy, like the White Walkers. They would combine their forces, Jon with his knowledge of the North and Daenerys with her powerful dragons and army. And a third scenario might be a more personal one, where they gradually fall in love during their journey together, sharing their dreams and fears.
There might be a fanfiction where Dark Jon Snow and Daenerys meet in a different scenario, like on a diplomatic mission. Jon, with his changed personality, tries to manipulate Daenerys for his own ends. However, Daenerys is no fool and she sees through his games. This leads to a power struggle between them that is full of political intrigue and personal drama.