Character development is crucial. Spike might grow more confident in his relationship with Limestone, and Limestone could become more open - minded. Additionally, conflict is often an element. It could be external, like a threat to their town that they have to face together, or internal, such as their own insecurities about their relationship.
I'm not sure how many you've already read, but 'Spike and Limestone's Shared Secrets' is a fanfic that delves into their private conversations and the things they only share with each other. It gives a really in - depth look at their relationship. There's also 'The Growing Bond of Spike and Limestone' which shows their relationship evolving over time in a very natural and engaging way.
One key element is their contrasting personalities. Rainbow Dash is brash and adventurous while Spike is more reserved. Their interactions based on these differences are interesting. For example, in many fanfics, Rainbow Dash will drag Spike into her wild adventures.
One key element is the relationship development between them. Whether it's a growing friendship or a mentorship of sorts. Another is the setting. If it's set in the familiar Equestria, how the environment affects their story. Also, the plot. It could be about them helping other ponies or facing a common threat.
The plot usually involves some sort of crossover event that brings them together. It could be a magical anomaly or a common enemy. And then, how they navigate this new situation together, with their different powers (if any are carried over from their respective universes) and personalities, forms the bulk of the story. There's also often a lot of exploration of the different vampire lore from both universes.
Often, a key element is their different personalities. Spike is young and eager, while Shining Armor is more experienced. Their interactions based on these differences are interesting. For example, Spike might look up to Shining Armor.
Since the 'old boy spike lee story' is not clearly defined, one possible key element could be Spike Lee's creative vision. He is known for his distinct style, so if it's related to a project like 'Old Boy', his creative input would be crucial.
Another key element is how this relationship affects the whole group. The other characters' reactions to Twilight being Spike's mother - figure can range from surprise to support. It can also lead to new storylines like group adventures where Twilight's motherly instincts come into play for the benefit of the whole group.
Character growth is another important element. Spike might learn to be more assertive from Ember, while Ember could learn about friendship and loyalty from Spike. These changes in their characters over the course of the fanfic make the relationship more believable and engaging.
Spike MLP Fanfic is a type of fan - made literature that focuses on Spike in the context of My Little Pony. Fans write these stories for a variety of reasons. Some might be huge Spike fans and want to give him more spotlight. Others might want to explore different storylines that could have happened in the MLP world involving Spike. It can range from humorous tales where Spike gets into comical situations to more serious and emotional stories about his place in Equestria and his relationships with those around him.
He could meet other dragons. Since he is a dragon himself, it would be natural for him to encounter some of his own kind during his runaway journey. They might teach him about dragon culture and traditions that he doesn't know much about.