The unique relationship between Lilo and Stitch in the original work is a big factor. Transforming it into a love story in fanfics gives it a new and interesting dimension.
One idea could be about Stitch learning new Hawaiian traditions with Lilo and her family. For example, they could be preparing for a big luau together, and Stitch has to master a particular dance or cooking technique.
It is highly inappropriate. 'Lilo and Stitch' has a positive image and is loved by many for its innocent and heartwarming story. Fanfiction should be in line with the general spirit of the original work, and sexual content has no place in relation to this particular franchise.
Friendship is a very common theme. Lilo and Stitch have a special bond, and fanfics often explore how they support each other through different situations. Another theme is family. Since Lilo has her own family situation and Stitch becomes part of that family, it's often written about. For example, how Stitch adjusts to family life and the family's reaction to him.
Friendship is a very common theme. The original characters often form deep bonds with Lilo and Stitch, just like how Lilo and Stitch are friends. For example, in many fanfics, the OC might help Stitch when he gets into trouble with Jumba or other aliens.
There are fanfics that focus on the relationship between Lilo and Stitch in different scenarios. For example, a story where they get separated due to some intergalactic event and have to find their way back to each other. Stitch might meet some old 'cousins' of his during this time who either help or hinder his journey back to Lilo.
There are fanfics where they go on adventures together and during those adventures, their relationship deepens into a loving one. These often include elements of Hawaiian culture as it was in the original movie, which adds a lot of charm to the love story being told.
The theme of transformation is also prevalent. Stitch changes from a wild creature to a more loving and gentle being because of Lilo's love. Fanfictions often play with this idea, showing how their relationship has a positive impact on both of them and how they both grow as characters in the context of their love for each other.
One common theme is the idea of acceptance. Lilo accepts Stitch despite his oddities, and this is often explored further in fanfiction, like how their acceptance of each other deepens into love.
One common theme is the idea of acceptance. Lilo accepts Stitch despite his differences, and this is often explored more deeply in love fanfictions, like how their love grows from that initial acceptance.