At first, they might be at odds. Rhaegar may initially view Fem Jon Snow as a threat to the Targaryen legacy, while she sees him as part of the old regime. But as they get to know each other better, they realize they have common goals, like protecting the realm from the impending threats. This could lead to a deep bond, perhaps even a romantic one. They would support each other in their respective quests, with Rhaegar using his knowledge and influence, and Fem Jon Snow her unique skills and perspective from the North.
It could develop in a very complex way. Given that Fem Jon Snow is from a different time and has different values compared to Rhaegar. Maybe they meet in a magical realm where they are forced to work together. At first, there is tension because of their differences. But as they face challenges together, they start to respect each other. Rhaegar begins to admire Fem Jon Snow's tenacity and her sense of justice, and she starts to understand the weight of Rhaegar's responsibilities in his time. Over time, their relationship could grow into a strong friendship or something more, depending on how the story unfolds.
Their relationship could develop into a very strong father - son bond. Rhaegar, having lost so much, could pour all his hopes and dreams into Jon. Jon, on the other hand, could look up to Rhaegar as the father he never had. They might travel together, facing various challenges and growing closer through shared experiences, like fighting off enemies or dealing with political intrigue in Westeros.
A plot could involve Fem Jon Snow being trained in the ways of the dragon by Rhaegar's spirit. Since Rhaegar was known for his connection to dragons, he could guide her to discover her own dormant dragon - riding abilities. This could lead to her uniting the remaining Targaryen forces and reclaiming the Iron Throne. Or perhaps they meet in a dreamscape where Rhaegar reveals the true purpose of her existence, which is to bring peace between the North and the Targaryen - ruled South.
Well, their relationship development could be a complex journey. Maybe Rhaella is initially in a position of power and Jon is a nobody in her eyes. But as events unfold, Jon shows his courage and leadership skills. Rhaella starts to respect him and realizes that he could be an important figure in the future of the Targaryen dynasty. They could start to collaborate on plans to strengthen the Targaryen claim to the Iron Throne. Their relationship would be filled with political intrigue, personal growth, and a growing sense of loyalty towards each other as they face various challenges together.
Their relationship could start off rocky. Jon, being a man of the North and having grown up as a bastard, might be skeptical of Aegon, who was raised with a sense of Targaryen royalty. However, as they face common enemies and challenges, they would gradually start to understand each other. For example, when they are both targeted by the Lannisters, they have to rely on each other's skills. Jon's combat expertise and Aegon's diplomatic knowledge could complement each other, leading to a grudging respect that over time turns into a deep friendship.
One possible scenario could be that Rhaegar recognizes Jon Snow as his son immediately. He might be filled with a mix of emotions, pride and regret perhaps. He could then start to train Jon in the ways of the Targaryens, sharing secrets about their family's past and the power of dragons.
They might have a love - hate relationship at first. Fem Harry Potter could be seen as an outsider by Rhaegar, and he might be suspicious of her magic. But as they get to know each other, the hate turns into love. Harry could be attracted to Rhaegar's noble and chivalrous nature, while Rhaegar could be drawn to Harry's strength and unique abilities.
There could also be a mentor - mentee relationship. If Aegon is more experienced in the ways of court and politics, he could mentor Female Jon Snow. And in return, she could teach him about the values of the North, like loyalty and honor. This relationship would be one of growth for both of them, with each learning valuable lessons from the other as they navigate the complex world of Westeros.
The kiss can make their relationship more complex. It might lead to them becoming more protective of each other. For example, after the kiss, Jon could be more determined to keep Daenerys safe from her enemies.
If Jon meets Rhaegar, it could change the story drastically. For one, Jon might gain a new understanding of his Targaryen heritage. He could learn secrets about his family that were lost over time. This new knowledge could influence his decisions regarding the Iron Throne and his relationships with other characters.
Perhaps in the fanfiction, Fem Harry Potter is a descendant of an ancient Targaryen who was sent to the world of Harry Potter for safety. When she returns to the world of Westeros, she meets Rhaegar. They could bond over their shared sense of duty. Rhaegar might be intrigued by her different kind of magic and her unique perspective on the world, and together they could work towards a more just Westeros.