Perhaps Myrcella is sent to the Wall as part of a political maneuver. There she meets Jon Snow. At first, they are at odds, but as they get to know each other, they find common ground. They learn of a conspiracy that threatens both the North and the South of Westeros. Together, they embark on a journey to expose the conspiracy and save the kingdoms. This would involve them facing many obstacles, including distrust from their own people and powerful enemies who want to keep the conspiracy hidden.
A fanfiction could revolve around Myrcella being a key figure in helping Jon Snow claim his rightful place in the Seven Kingdoms. Since she has been exposed to the politics of King's Landing, she could use her knowledge and influence to support Jon, who has his own claim through his Targaryen heritage. Their story could be about uniting different factions and bringing a new era of peace to Westeros.
A plot could be that Robert Baratheon, in his later years, starts to question the legitimacy of the current power structure. He meets Jon Snow, who has a mysterious allure about him. They start to exchange ideas about honor and leadership. Robert realizes that Jon has a different kind of wisdom, born from his experiences at the Wall. This leads to a journey together where they try to find a new way to rule the Seven Kingdoms that is more just and inclusive.
They might interact with a sense of mutual respect at first. Jon, knowing Myrcella's position as a princess, shows her due courtesy, while Myrcella is intrigued by Jon's different upbringing and his skills. They could exchange stories about their lives, like Jon telling Myrcella about the Wall and the wildlings, and Myrcella sharing tales of the Red Keep.
One idea could be a story where Robert Baratheon discovers Jon Snow's true parentage earlier. This could lead to a complex relationship where he sees Jon as a potential heir or a powerful ally. He might take Jon under his wing, train him in the ways of leadership and warfare, much like he did with Ned Stark's other children.
In some fanfiction, Jon Snow and Myrcella could form an alliance to bring peace between the North and the South. Myrcella, being a princess, has the influence in the South, and Jon has the loyalty of the North. They work together to end the feuds and power struggles, and along the way, they develop a deep friendship that might turn into something more romantic.
Character - wise, Myrcella in this kind of fanfiction may be objectified due to the sexual nature of the 'lemon' genre. Her storylines might deviate significantly from what was presented in the official 'Game of Thrones' narrative. Instead of focusing on her political significance or her family ties as in the original, it may center around sexual encounters or relationships, which is not in the spirit of the original work's more complex and multi - faceted storytelling.
Another plot might involve a journey that Robert and Myrcella embark on together. It could be a quest to find a long - lost relic or to seek the aid of a powerful ally. Along the way, they face various challenges that test their relationship and force them to rely on each other.
One possible plot could be that Jon Snow uses his military skills learned from the Night's Watch and his newfound alliances. He might start by uniting the North completely, including the wildlings. Then, he could gradually move south, facing challenges from different Houses. His claim to the Iron Throne could be based on his Targaryen heritage, which he may reveal at a crucial moment to gain more support.
One possible plot could be that after some political upheaval in Westeros, Jon Snow, in an effort to unite the North and the Riverlands more firmly, marries a Frey. They might initially face resistance from both sides due to the past enmity between the Starks and the Freys. But as they get to know each other, they discover common goals and start to build a relationship based on mutual respect. Their union could also lead to new alliances and power dynamics in the Seven Kingdoms.
Well, it could be about Jon Snow leading his men into a great battle against the White Walkers. Maybe he discovers new strategies or forms unexpected alliances during the war.