At the start, their interaction might be filled with misunderstandings. Ralph's big and loud personality might scare Penelope a bit. But as they get to know each other, they would start to see the good in each other. Ralph would show Penelope that sometimes it's okay to be a bit reckless and have fun, while Penelope would teach Ralph the importance of planning and thinking ahead. Their relationship would grow as they face challenges together, like when they have to save a game from being deleted or deal with a bully in the arcade.
One possible plot could be that Penelope, with her intelligence and resourcefulness, gets transported into the world of Wreck - It Ralph. She teams up with Ralph to solve a new threat in the arcade world. Maybe a new virus is attacking the games and they have to use their combined skills to stop it.
First, really understand the characters. Ralph is complex, with his insecurities and his longing for acceptance. Vanellope is spunky and independent. Make sure your story stays true to their personalities.
One interesting 'Wreck - it Ralph' fanfiction could be about Ralph and Vanellope exploring new game worlds outside of their arcade. Maybe they find a long - lost arcade game with unique characters and challenges.
One possibility is that Ralph and Shank could go on an adventure through different video games together. They might encounter various challenges and have to use their unique skills to overcome them. Ralph's strength and Shank's street - smart nature could make them a great team.
I'm not sure if there is specific 'Wreck - It Ralph and Vanellope pregnant' fanfiction. Fanfiction can cover a wide range of ideas, but this particular concept might be a bit unusual and not as common. You could try searching on major fanfiction websites like Archive of Our Own or FanFiction.net to see if any such stories exist.
A popular theme is redemption. Some fanfictions might focus on a character who has made mistakes in the game world and is trying to redeem themselves. This could be a minor character who was mean to Ralph or Vanellope at some point. And of course, the theme of the power of hope and believing in oneself, which is inspired by the characters' growth in the original movie.
One interesting 'Wreck - It Ralph' fanfic could be one where Ralph and Vanellope explore new game worlds outside of their arcade. It's exciting to see how they adapt to different gaming environments.