One plot idea could be that Stan and Wendy face the challenges of teen pregnancy together. They might struggle with telling their parents and friends, and deal with the changes in their school and social lives. For example, Wendy could be worried about her future academic prospects while Stan tries to find a part - time job to support their upcoming family.
A third plot could involve the reactions of their friends. Cartman could be his usual self and make fun of them, while Kyle and Kenny try to be more supportive. The fanfiction could explore how Stan and Wendy deal with the mixed reactions from their peers, and how it affects their relationship not just with each other but also with the whole group.
Another idea is that it's a what - if scenario in an alternate universe. Maybe in this fanfiction, Wendy discovers she's pregnant right before a big event in their lives, like a concert they were both looking forward to. This could cause a rift between them as they have different priorities now, but eventually they come to terms with the situation and support each other.
Perhaps they discover that the baby has some special abilities. This could lead to a journey where they try to understand and control these powers. They might also have to hide the pregnancy from certain people in Neverland at first to keep the baby safe.
One plot idea could be that Wendy and Romeo face challenges from their families. Their families might have different expectations or be against their relationship at first. Another idea is that they deal with the unexpected pregnancy while also trying to pursue their own dreams. Maybe Wendy wants to continue her studies or Romeo has a career goal he's worried about achieving now.
One plot idea could be that it's a magical or science - fiction scenario where they are accidentally exposed to a strange substance that causes this. For example, a wacky scientist's experiment gone wrong in South Park. Another could be a body - swap situation where they end up in female bodies and then have to deal with the unexpected pregnancy.
One idea is that there's a magical carnival that comes to Gravity Falls. Dipper and younger Wendy go there together. They enter a funhouse that turns out to be a portal to a parallel dimension. In this dimension, everything is opposite, and they have to find their way back. Along the way, they rely on each other's strengths. Dipper's knowledge of the supernatural helps them understand the strange rules of this dimension, and Wendy's bravery gets them through dangerous situations. Their bond becomes stronger as they face these challenges.
Another plot could be that Casper and Wendy get into trouble when they accidentally break a major rule in the ghost world. They then have to find a way to fix it before the Ghost Council punishes them. They might seek the help of some of Casper's friendly uncles, who are more experienced in dealing with such situations.
A possible plot is that Wendy gets lost in a previously unexplored part of Neverland. Peter Pan and the Lost Boys go on a frantic search for her. While lost, Wendy discovers a hidden tribe of magical creatures that are shy and have been avoiding contact with the Lost Boys. Wendy befriends them and they help her find her way back. This could lead to a new alliance between the Lost Boys and these creatures.
A possible plot could be set in a parallel universe where Wendy is not a villain. She and Luigi meet at a grand Mushroom Kingdom festival. They both share a love for a particular type of mushroom - based food that is rare at the festival. As they search for this food together, they face various challenges like competing with other characters for the last piece, and through these shared experiences, they fall in love.
One plot idea could be that the Avengers find Stan Lee's old unpublished comic scripts during an adventure. They then use the ideas in the scripts to defeat a new, powerful villain who is immune to their usual tactics. Another could be that Stan Lee, as a spirit, visits the Avengers to give them moral support and some secret wisdom before a big battle.
Well, a plot might involve Cartman and Wendy accidentally swapping personalities. This would lead to all kinds of chaos and hilarity in South Park. For example, Cartman - in Wendy's body - would have to deal with girl - related issues, and Wendy - in Cartman's body - would have to handle Cartman's friends. Or perhaps they find a mysterious object that gives them shared dreams, and they have to figure out what the dreams mean and how to stop a bad event from happening in those dreams.
One idea could be that Peter and Wendy discover a hidden island full of magical creatures that are neither fairy nor human. Another could be that they have to face a new villain who has the power to manipulate time, causing chaos in Neverland. Maybe Wendy tries to teach the Lost Boys some proper manners from her own world, which leads to humorous situations.