Well, perhaps a plot where they get married in a secret ghost - friendly ceremony. Then, they embark on a journey to find a way to make the Ghost Zone and the human world co - exist peacefully. This could involve many adventures and meeting different kinds of spirits along the way. They also have to deal with the reactions of their friends and family to their new life goals.
A possible plot is that Danny and Sam get married in a rush due to some unforeseen circumstances in the Ghost Zone. After that, they struggle to balance their normal human lives, like their jobs or studies, with their new responsibilities in the supernatural world. There could be comical moments where Danny accidentally uses his powers at inappropriate times, and Sam has to cover for him while they try to build their married life.
A plot could be that a magical spell gone wrong makes Sam and Danny age down to babies. Tucker discovers that there's a time limit to reverse the spell. Meanwhile, the two babies are exploring the world in a very different way, seeing things from a new perspective. This could lead to some heartwarming and funny interactions with their families and friends as they all try to solve the mystery of the spell.
One plot idea could be that Sam and Bella are married but have to keep it a secret from their families for some reason. They then have to navigate their relationship while hiding it. Another could be that they get married quickly and then have to learn about each other's quirks and habits in their married life.
One idea could be that Danny and Sam travel back to the founding of Amity Park and accidentally change something small that has huge consequences in the present. For example, they might stop the first settler from building in a certain spot, which then changes the layout of the whole town and where ghosts can enter from in modern times.
One idea could be that Danny and Sam accidentally travel back to the age of dinosaurs. They have to figure out how to survive among the giant creatures while also trying to find a way back home. Maybe they discover a time - traveling dinosaur that helps them in some way.
A really cool plot could be that Sam is given a rare plant seed by a mysterious figure. When she plants it, it grows into a giant, sentient plant. Danny at first is wary of it, but they soon find out that the plant is actually friendly and has some knowledge about Danny's ghost powers. Together, they use the plant's abilities to fight off a powerful ghost that is threatening their city.
One idea could be that they face challenges in their new married life while preparing for the baby. For example, they might struggle with financial issues as they get ready for the new addition to the family. Another plot could be that they have different ideas about how to raise the child, like Sam being more laid - back and Freddie being overly cautious.
One idea could be that Sam and Freddie start a wacky business together after getting married. They might use their combined skills from the iCarly days to create something unique, like an online show that combines cooking (Sam's love for food) and tech gadgets (Freddie's area of expertise).
One plot idea could be that they have to deal with the challenges of being young and pregnant while also facing Danny's ghost - fighting duties. Maybe they have to keep it a secret from their families and friends at first, adding a layer of mystery and stress. Another idea is that there could be some sort of ghostly influence on the pregnancy, either positive or negative, which leads to unexpected developments in the story.
Well, perhaps in the fanfiction, Danny and Sam have been through a lot together, like countless battles with powerful ghosts. One day, Danny decides it's time to propose to Sam in a very special way. He takes her to their favorite haunt (pun intended), a place where they first discovered a powerful ghost artifact. There, he gets down on one knee and asks her to marry him. And of course, she says yes.
One idea could be that Danny and Sam have kids in the future and their kids inherit Danny's ghost powers. The story could focus on how they learn to control their powers while also dealing with normal kid stuff like school and making friends. It would be interesting to see how Sam, as a mom, guides them through this.