You can also develop their relationship through shared interests. If your OC is into technology, they can bond over Penny's robotic nature. They could work on small projects together, which would strengthen their bond. Also, throw in some challenges. Maybe some people at school don't trust the OC and Penny has to defend them, which would deepen their friendship.
Maybe the OC has a special power that only Penny can understand or help control. For example, if the OC can manipulate time in small bursts, Penny's robotic nature might be able to analyze it and they could use this power to save the day during a Grimm attack.
One popular 'RWBY Penny x Fanfiction' story is 'Penny's New Beginnings'. It explores Penny's character development in a post - war scenario. Another great one could be 'Penny and the Lost Artifact' which takes her on an adventure to retrieve a powerful relic. And there's also 'Penny's Friendship Bonds' that focuses on her relationships with the other RWBY characters in a very heart - warming way.
One common theme is friendship. Since they are both characters in the RWBY world, many fanfictions explore how they become friends and support each other. For example, Penny might help Ciel with her training, or Ciel might stand up for Penny when others misunderstand her.
One popular 'rwby ruby x penny fanfiction' might be those that focus on their friendship. For example, stories where they go on adventures together in the world of Remnant, facing Grimm side by side. They could be exploring new areas and learning more about each other's abilities.
You can start by looking on fanfiction websites such as Archive of Our Own (AO3). It has a large collection of RWBY - related fanfictions, including ones about Ruby and Penny. Just use the search function and type in 'rwby ruby x penny' and you'll likely find a good number of results.
Well, this kind of fanfiction often explores unique concepts. It might involve the character from RWBY being reborn as Penny. Maybe it'll show how the character adapts to Penny's life, her abilities and relationships. It could also bring in new storylines that are different from the original RWBY plot.
Another important aspect is to make the OC have their own unique personality traits that complement or contrast with Penny's. If Penny is outgoing and the OC is more reserved but has a great sense of humor that Penny discovers, it can create an interesting dynamic. Also, showing how they communicate, like the OC being a good listener when Penny vents about her acting career problems, can build a believable relationship.
First, you need to really understand Penny's character. Study her traits, like her innocence, her loyalty, and her unique abilities. Then, come up with an interesting plot. It could be something like Penny going on a solo mission to a new area in Remnant. Next, create some conflict. Maybe she has to face an enemy that challenges her beliefs or her skills. Also, don't forget to add in some interactions with other RWBY characters to make it more engaging.
Well, Archive of Our Own (AO3) is also a great place to look for rwby penny x ciel fanfiction. It has a large collection. You can filter the results by tags such as 'Penny', 'Ciel' and 'RWBY' to narrow down your search and find the stories that really interest you. Some stories might involve them going on adventures together or having deep conversations that strengthen their bond.