When the TMNT turn into dragons, their relationships could shift in various ways. Their usual dynamic of being a team of mutant turtles would be disrupted. Maybe Mikey would be the most excited about their new forms and try to get his brothers to embrace the dragon - like qualities more. Raphael might struggle with the change and become more withdrawn, causing the others to reach out to him more. Their relationships would be a mix of adjusting to the new physical forms and the emotions that come with it.
One possible plot twist could be that the TMNT turn into dragons not because of some magic spell gone wrong, but because it's an ancient prophecy. They are the only ones who can save the city in their dragon forms from a powerful, otherworldly threat. As dragons, they have new powers like breathing fire or flying at supersonic speeds, which they use to fight the enemy.
I recommend the book "Primordial Dragon", which tells the story of White Crown transmigrating to another world and becoming a dragon. In the Otherworld, Bai Mian needed to assist the princess to ascend to the throne, but he did not have the inherited memories necessary for the dragon race. He needed to learn how to be a dragon in a short period of time. The story was full of mystery and fantasy, and it was very interesting. I hope you like this fairy's recommendation. Muah ~๐
Obviously, the three purple dragons are main characters. Spyro himself is also a key character as he is likely to be involved in any story related to the purple dragons in the Spyro universe.
A more in - depth fanfiction could focus on the relationships between the three purple dragons. Perhaps there are power struggles or alliances within their group. You could also explore how their existence affects the world of Spyro. Are they seen as a threat? Or are they misunderstood creatures? This kind of fanfiction could delve into the politics and social structure of the Spyro universe.
In this fanfiction, the three purple dragons could be exiled from their original homeland due to some misdeeds. They end up in Spyro's world and try to make a new start. However, old habits die hard and they gradually fall back into their bad ways. Spyro has to team up with some of his friends to either rehabilitate them or drive them out of his world. This could lead to some interesting character development for both Spyro and the purple dragons as they interact and face different challenges together.
Create a compelling plot. It could be a mystery, like trying to figure out the true purpose of the purple dragons. Or a journey where they are searching for something important. Also, make sure to have good pacing, not too slow or too fast.
In the traditional TMNT universe, male turtles like Leo getting pregnant goes against the biological norms of the franchise. However, in fanfiction, anything can be reimagined. Some fanfiction might use magic or some out - of - the - box concepts to make such a situation possible, but it's not part of the official TMNT lore.
In this fanfiction, the TMNT might escape by first observing their captors' routines. If the Shredder has minions guarding them, they could wait for a shift change or a moment of inattention. Donatello might be able to hack into any security systems if there are any. Also, they could use their knowledge of the sewers to find a way out. Maybe there's a hidden passage that the Shredder doesn't know about. And of course, their ninja skills would come in handy for sneaking past guards and making a quick getaway.