Love and connection are perhaps the most prominent themes. The stories usually explore the unique connection between a human (the reader) and the female Lucario. It can be a platonic love at first, but often evolves into a deeper, more romantic kind of love. There are also themes related to the Lucario's unique abilities and how they are used to protect or help the reader in different situations.
One popular female Lucario x reader fanfic might be 'A Bond Beyond Words'. It focuses on the deep connection that forms between the reader and the female Lucario. The story often has elements of adventure as they journey together through different terrains.
First, do some research on Lucario's characteristics. Know how it moves, behaves, and its general nature. Then, think about the plot. You could start with how the Lucario gets pregnant, whether it's a natural occurrence in the Pokémon world or something special. For example, it could be a result of a special bond with another Pokémon.
I'm not sure specifically as there could be many interpretations. It might be a fan - created fictional story where Ash from Pokémon has some sort of adventure or relationship involving a Lucario.
One common theme is friendship. Despite their differences, Lucario and Zoroark often form a bond in these fanfics. Another theme is adventure. They usually embark on some sort of journey or quest. For example, they might be looking for a special item or trying to save a particular place.
A common theme is friendship. The male trainer and Lucario form a strong bond that helps them through various challenges. Another theme could be growth, both for the trainer in terms of becoming a better Pokémon trainer and for Lucario in evolving its skills.
There's a fanfic titled 'Lucario and Zoroark: A New Alliance'. In this story, Lucario and Zoroark find themselves in a new region where they form an alliance to protect the local pokemon from a group of poachers. The story is really exciting as it shows how their different abilities complement each other. Also, 'The Journey of Lucario and Zoroark' is a fanfic that takes you on a journey through different terrains as they search for a legendary pokemon.
I'm not aware of a specific fanfic that features female Lucario that I can recommend right off the bat. However, you can check out popular Pokémon fanfic websites like FanFiction.net or Archive of Our Own. Use the search function and look for stories with 'female Lucario' in the tags. Then, skim through the summaries to find ones that seem family - friendly and not focused on inappropriate topics.
I'm not sure if there is a specific non - adult fanfic focused solely on that. Lucario is a popular Pokémon, but creating or seeking fanfic based on body features in a non - appropriate way isn't very common in the mainstream Pokémon fan community. You might have better luck looking for general adventure or character - development - based fanfics involving female Lucario.