Wart could also be an antagonist. He might try to take over the Mushroom Kingdom where Baby Mario and Baby Peach live. He could send his minions to stop the two from getting help or finding special items that can defeat him.
It could be about various things. Maybe it's a fictional story that features Baby Mario and Baby Peach going on adventures together in the Mushroom Kingdom. They might face challenges like dealing with Bowser's minions or finding power - ups.
One idea could be that Baby Mario and Baby Peach go on a magical adventure through the Mushroom Kingdom, encountering new and strange creatures along the way. They might have to work together to solve puzzles to reach a special power - up that can save the kingdom from a new threat.
There could be a new, unknown villain. Maybe a dark force from a far - off land that senses the power of Mario and Peach's baby and wants to use it for its own dark deeds. This villain could bring in new elements to the fanfiction, like different types of magic or strange creatures that the Mario characters have to face to protect their baby.
One idea could be that Mario and Peach's baby has special powers inherited from both of them. For example, the baby could have Mario's jumping ability and Peach's ability to communicate with nature. This would lead to all sorts of adventures as the baby discovers its powers while growing up in the Mushroom Kingdom.
Well, the story could be about the joys of raising their baby in the Mushroom Kingdom. It might show Mario teaching the baby how to jump over obstacles, just like he does in his adventures. And Peach could be teaching the baby about kindness and ruling the kingdom someday.
A common theme is adventure. Since the Mario franchise is known for its action - packed adventures, fan fictions often send Mario and Baby Peach on quests. Another theme is friendship, showing how they support each other in different situations.
Some of the other characters in the Mushroom Kingdom, like Yoshi, could become like an older brother or protector to the baby. Yoshi might give the baby rides and teach it about the different areas of the kingdom. The Koopa Troopas, on the other hand, might be a bit more wary. They might see the baby as a future threat to their more chaotic ways, but at the same time, they could also be curious about this new addition to the Mushroom Kingdom.
There is also fan fiction where Mario and Baby Peach are depicted as having a really close friendship. For example, in a story, Mario could be teaching Baby Peach how to navigate the dangerous parts of the Mushroom Kingdom. He shows her all the secret passages and warns her about the various enemies. This type of fan fiction focuses on their relationship and character development.