The 'mentor - mentee' trope is also common. Rainbow Dash, with her confident and adventurous nature, can be seen as a mentor to Spike, teaching him about courage and loyalty. It can lead to some really heartwarming stories as Spike grows under her guidance.
Another trope is the 'adventure together' one. They might embark on a quest to save Equestria or find a magical item. In these fanfictions, their combined skills - Spike's knowledge and Rainbow Dash's flying abilities - are put to good use, and it usually involves a lot of action and excitement as they face various challenges along the way.
You can try fanfiction websites like Fimfiction. There are a large number of MLP - related fanfictions there, including ones about Spike and Rainbow Dash. Just use the search function and type in their names.
The 'team - up against a common enemy' trope is also popular. They might face a villain who is trying to disrupt the harmony of Ponyville. Rarity uses her wits and Rainbow Dash uses her speed and strength. In the process, they discover new sides of each other and their friendship deepens.
One popular trope is the 'Training Session' where Rainbow Dash helps the reader character improve in some skill, like flying if the reader is also a pony in the story. It's a great way to build a connection between the two characters.
Some fanfictions also explore the theme of self - discovery. Both Spike and Rainbow Dash might discover new things about themselves through their interactions. For example, Rainbow Dash might learn to be more patient, while Spike might find out that he has more courage than he thought. These themes add depth to their relationship in the fanfiction world.
One popular trope is the 'fish - out - of - water' for Spike. Since he's in a harem situation, which is quite different from his normal MLP experiences, he might feel out of place at first. Another is the 'love triangle' or 'love polygon' among the harem members vying for Spike's attention.
One popular Rainbow Dash x Spike fanfiction is 'The Sky and the Dragon'. It explores their unique friendship and how they support each other through various challenges in Ponyville. Another great one could be 'Dash and Spike's Adventures' which takes them on an exciting journey filled with magic and mystery.
The theme of acceptance is also quite prevalent. Since they are different species in the My Little Pony universe, there could be challenges in their relationship in terms of how others perceive them. So, in many fanfictions, they have to deal with acceptance from their friends and the community around them while exploring their love for each other. This can lead to some really interesting and heart - warming storylines.
The Wonderbolts themselves are also quite alluring. They represent the pinnacle of flying skill in the MLP universe. Fanfics about them often involve exciting aerial displays, secret training techniques, and a sense of camaraderie among the team members. When combined with Rainbow Dash's character, it creates a dynamic that fans enjoy reading about. For example, a fanfic might show Rainbow Dash learning a new flying maneuver from one of the Wonderbolts, which not only showcases her growth but also gives insights into the Wonderbolts' expertise.
In MLP fanfiction, Rainbow Dash being pregnant can be significant as it can show a different side of her. Usually, she's all about speed and adventure, but pregnancy can make her more vulnerable and caring.
One aspect could be how her friends in the MLP world react to her pregnancy. They might be super supportive, like Fluttershy bringing her some special herbal teas to ease any discomfort. And Twilight could be helping her with any magical or knowledge - related aspects of pregnancy. It's a chance to show the strong bond of friendship in this fictional scenario.