One possible storyline could be Ben and Julie going on an adventure together to a new planet. They encounter strange alien creatures and have to use Ben's alien forms and Julie's martial arts skills to survive. Another could be a story where they face a powerful villain who is threatening their hometown, and they must work together to stop the villain and protect their loved ones.
A great fanfic storyline could be that Julie discovers a new power within herself that is somehow connected to Ben's alien forms. They then embark on a journey to understand this new power and how it can be used for good. Along the way, they face challenges from other alien species who are interested in this new power. Ben has to use his existing alien forms in new and creative ways to protect Julie and help her master her power.
Well, a storyline might involve Ben losing his Omnitrix temporarily. Julie then has to take on a more protective role, using her knowledge of Ben's powers and her own combat abilities to keep him safe while they search for a way to get the Omnitrix back. Or perhaps they get transported to an alternate dimension where their relationship is different, and they have to figure out how to get back to their own dimension while also dealing with the changes in their relationship.
A really interesting plot could involve a time - traveling aspect. Ben and Julie accidentally travel back in time to when Ben first got the Omnitrix. They have to be careful not to disrupt the timeline while also trying to find a way back to their own time. Along the way, they could meet younger versions of characters they know and have some really fun and emotional interactions. This could also lead to Ben learning some important lessons about his powers from his past self.
One possible storyline could be that Ben accidentally swaps bodies with an alien species and has to deal with the new physical form while also trying to reverse the swap to save the day. Another could be that there is a villain who causes body swaps among the main characters for their own devious plans, leading to a lot of chaos and character development as they adapt to their new bodies.
One interesting storyline could be Ben and Gwen having to face a new, powerful alien threat that they've never encountered before. They might have to combine their unique skills and powers to defeat it.
One possible storyline could be that they discover the pregnancy unexpectedly. Maybe they are in the middle of some sort of adventure or struggle against a common enemy, and this new development completely changes their priorities and how they interact with each other. They might start to plan for a more stable future, away from the chaos they were previously in.
One possible storyline could be an adventure where Ben 10 and Female Albedo have to team up against a common enemy. Maybe an alien threat that is endangering the Earth. They start off as reluctant allies due to their differences but gradually learn to trust and rely on each other.
A good Ben 10 x Julie fanfic should have well - developed characters. For example, it should show Julie's strong - willed and independent nature, as well as Ben's sense of adventure and heroism. The relationship between them should also be explored in depth, whether it's a friendship or a romantic relationship.
The chemistry between Ben and Julie. If the fanfic can convey their unique connection and how the kiss is a natural progression of their relationship, it makes it interesting.
One popular 'Ben and Julie Kiss Fanfic' is 'A Moment of Tenderness'. It beautifully captures the emotions between Ben and Julie during their kiss. The author does a great job of building up the tension before the kiss and then making it a really sweet moment.
One popular 'Ben 10 Julie' fanfic could be one where Julie discovers a new alien form that Ben has never encountered before and they have to work together to defeat a powerful new enemy. It might focus on their relationship growth during this adventure.
A great way to develop their relationship further is to introduce a third party, like an alien who has a special connection to Ben's powers. This alien could be jealous of Julie or try to drive a wedge between them. But in the end, Ben and Julie's love and trust for each other overcomes the obstacle. Also, they could go on a long journey across different planets to find a cure for an illness that affects Julie, and during this journey, they share many intimate moments and really understand each other on a whole new level.