During the story, Lilo could develop a stronger sense of family. With the new addition coming, she realizes the importance of family even more. She might start reaching out to her extended family and friends for support. Stitch, on the other hand, could develop a sense of self - sacrifice. He's willing to put himself in danger to protect Lilo and the unborn child, which is a big change from his more self - centered beginnings.
First, stay true to the characters. Lilo is a strong - willed and kind - hearted girl, and Stitch is chaotic but lovable. Make sure their personalities are recognizable. For example, Stitch should still have his love for 'ohana' at the core of his actions.
The characters can interact in various ways. For instance, Harry could teach Lilo some basic spells. Stitch, being curious, might follow Ron around Hogwarts. Hermione could study Stitch's unique physiology. Another way is that the Weasley twins could try to use Stitch in their pranks. And Dumbledore could offer his wisdom to Lilo when she faces difficulties with Stitch.
Rose could develop by becoming more in tune with her emotions. The pregnancy hormones might make her more sensitive, but she could also learn to use this to her advantage in communicating with Christian. Christian may develop a deeper sense of purpose. Before the pregnancy, he might have been just drifting through life, but now he has a family to care for. He could start taking on extra jobs or learning new skills to better provide for his future family, and this would show his growth as a character in the fanfiction.
Billy could develop by becoming more responsible. He might start thinking about the future more seriously instead of just his usual carefree self. For instance, he could learn to save money for the baby or start looking for a proper place to live. Mandy, on the other hand, might show a softer side. Usually tough, she could become more nurturing and protective, showing that there's more to her than her intimidating exterior.
Perhaps the pregnancy is a result of some sort of alien experiment gone wrong. Lilo and Stitch then have to find a way to reverse it if they don't think they're ready for a baby. But as time goes on, they start to warm up to the idea and decide to keep the baby, facing all the difficulties and joys that come with it.
Naruto would likely be very excited to meet Stitch. He loves making new friends and Stitch's unique abilities would surely amaze him. He would probably try to get Stitch to do some ninja - like training with him. As for Lilo, Naruto would be kind and protective towards her. He might see her as a little sister figure. Lilo would be curious about Naruto's world and his powers, and would ask a lot of questions. Stitch would initially be a bit wary of Naruto, but once he realizes Naruto is friendly, he would start to have fun with him, like playing pranks or having friendly competitions.
Obviously, Stitch and Lilo are the main characters. Stitch, with his mischievous yet endearing nature, and Lilo, a strong - willed girl.
Erza could develop more maternal instincts. She might become softer in her approach to things outside of combat. Jellal, on the other hand, could become more confident in his role as a future father. He might start taking on more responsibilities in their relationship.
One great 'Lilo & Stitch' fanfiction is 'Stitch's New Adventure'. It takes the characters on a journey to a new planet where they encounter strange and friendly aliens. The author does a wonderful job of keeping the spirit of the original show, with Stitch getting into all sorts of comical and heart - warming situations.
There's also a fanfiction where Lilo and Stitch time - travel. They end up in the future and have to deal with advanced technology while still being their unique selves. It's really interesting as it combines the charm of the original characters with a futuristic setting. In this story, Stitch's adaptability is put to the test in a whole new way.