One common theme is probably the power dynamic between them. Given their characters, there could be a lot of back - and - forth in terms of who is in control in the relationship.
Often, themes of loyalty and trust are explored. Since they are from the same fictional universe, their relationship in yaoi fanfiction might be built on how they trust each other in different situations. For example, they might have to rely on each other during a difficult mission or when facing a common enemy. Another theme could be the discovery of their feelings for each other. It could start as a rivalry or just a friendship, and then slowly turn into something more romantic. This theme of the evolution of their relationship is quite common in such fanfictions.
Another theme is growth. Both characters usually grow and change as they interact with each other. For example, they might learn to understand and accept each other's quirks better. Also, adventure is a theme sometimes. They could go on adventures together and face difficulties side by side, which helps to strengthen their relationship.
One common theme could be the relationship development between Dino and Hibari. Since it's mpreg, there might also be themes related to the challenges and joys of pregnancy, such as how Hibari copes with the physical and emotional changes. Another theme could be how their friends and the surrounding community react to this unexpected situation.
Friendship turning into something more is also a common theme. They start off as acquaintances or even rivals, and then through various events in the fanfic, their relationship deepens into a more romantic or deeply platonic bond. For example, in some fanfics, they are forced to work together on a mission which leads to a new understanding of each other.
Yes, there are quite a few. You can start by looking on some popular fanfiction websites like Archive of Our Own. Just search for 'dino x hibari yaoi' and you'll likely find a variety of stories with different themes and writing styles.
AO3 is probably the best bet. It has a tagging system that makes it relatively easy to find the specific type of fanfiction you're looking for. But don't limit yourself to just the big platforms. Sometimes, individual fan blogs or websites might also host unique dino x hibari yaoi fanfictions. You can find these by doing a general web search, but again, be cautious of the source and make sure it's a legitimate and safe site.
Power dynamics is often a theme. Dino being more experienced or having more power in some aspects, and Tsuna growing into his own power. This power play can be an interesting aspect in their relationship in the fanfiction. Also, loyalty and trust between them is a big theme. As they face various challenges together, their loyalty to each other is tested and strengthened, which is often explored in these stories.
Friendship or a deeper relationship development is also common. Since they are from the same anime universe, writers often explore how they might become closer, whether it's through shared battles or just spending time together. Maybe they start off as rivals and slowly become friends or something more.
Well, aside from the big fanfiction platforms, you might also want to join some relevant fandom groups on social media. There, fans often share their favorite fanfictions or even write their own and post snippets. They can give you some great leads on hibari x dino yaoi fanfiction. It's also a good place to discuss what you like or dislike about different interpretations of their relationship in fanfiction.
A plot might involve Dino being sent to observe Hibari's unique way of maintaining order in the school. As Dino tries to get closer to Hibari to learn more, Hibari is initially very defensive. However, Dino's persistence pays off when he helps Hibari deal with a group of unruly students who have a connection to Dino's past. This event starts to change Hibari's view of Dino, and they start to develop a bond over their shared sense of justice.
Typically, in such fanfic, you can expect to see a unique relationship dynamic between Hibari and Dino. There might be a lot of character - specific dialogue that showcases their personalities. The 'lemon' aspect might imply some romantic or more adult - themed interactions, but it could also just be used to denote a spicier, more intense relationship development.