Maybe they are having a deep conversation about their dreams and aspirations while sitting in the tree. For example, Ava could be telling Peter about her desire to travel the world, and Peter shares his thoughts on how to achieve those dreams. It could be a moment of self - discovery for both of them as they open up to each other in this peaceful setting.
A possible plotline could be that Peter and Ava are hiding from someone while sitting in the tree. They might be in a dangerous situation and the tree provides them a vantage point and a hiding place.
One way to find good 'Peter and Ava sitting in a tree fanfiction' is to join fan communities dedicated to the source material (if there is one). People in those communities often share and recommend their favorite fanfictions. It could be that the story is part of a larger narrative where the tree is a symbol of their relationship, like a place where they first realized they had feelings for each other or a place of comfort during tough times.
Perhaps Peter returns to Narnia and finds that time has passed differently there. His old friends have aged much more than he expected, and there are new political tensions in the land. He then has to use his leadership skills from his previous time in Narnia to help resolve these issues and bring peace back to the kingdom.
One possible plotline could be that Peter is poisoned by one of his enemies, like the Green Goblin. He then has to struggle to find an antidote while still trying to keep his identity a secret. Maybe he uses his scientific knowledge to analyze the poison and find a cure, all while fighting off the effects of the poison.
One possible plotline could be Peter's struggle to survive on the streets. He might have to face various hardships like finding food and shelter while also dealing with his past or some sort of inner conflict.
A plotline could involve Peter having a major falling out with his loved ones. For example, if he feels betrayed by his friends or Aunt May, he could turn evil. He might then use his knowledge of the superhero community to target other heroes and villains alike, causing chaos in the city. Another idea is that an outside force, like an alien symbiote or a powerful magic, could influence his mind and make him evil, leading to a series of events where he tries to reshape the world according to his now - twisted views.
In this fanfiction, perhaps Peter Parker is a huge dragon fan from a young age. One day, he somehow gets transported to a world full of dragons. There, he uses his intelligence and Spider - Man - like skills to survive. He might learn how to communicate with the dragons and ends up befriending one. This dragon could then help him get back to his own world, but not before he has to face some challenges in the dragon world, like saving the dragon eggs from poachers.
A possible plotline could be Peter deciding to break away from the Avengers or any big superhero group he's associated with. He might feel that he's not growing as much as he could on his own. So, he sets out to be a solo hero again, facing new challenges without the backup of the group.
Perhaps the gnarled tree of time is slowly dying, and the characters must embark on a quest to save it. Along the way, they learn about the history of their world and the significance of the tree in maintaining the fabric of time. They might encounter various obstacles, like ancient guardians who are protecting the tree from what they see as interference.
One interesting detail could be the wedding rings. They might be custom - made, with engravings that are special to Peter and Ava, like a line from their favorite poem or a symbol that represents a significant moment in their relationship. Another detail could be the bridesmaids' and groomsmen's outfits. They could be coordinated in a unique color scheme that reflects Peter and Ava's personalities, perhaps something like a pastel color if they are both gentle - natured.
One possible plot could be that Peter Parker and Ava Ayala have a daughter in a world where they are part of a superhero alliance. Their daughter might inherit some of their powers and struggle to find her place among the heroes while also dealing with the normal pressures of growing up.