Another option is to simply do a Google search with the keywords 'Blackfire loves Robin fanfiction'. This may lead you to some individual blogs or websites that host such fan - made stories. However, be cautious of the sources and make sure they are reliable and legal.
You can try looking on fanfiction websites such as Archive of Our Own (AO3) or FanFiction.net. They usually have a wide range of fanfictions including ones about Blackfire loving Robin.
There could also be themes of sacrifice. For example, Blackfire might have to sacrifice her own goals or allegiances in order to be with Robin. Or Robin might have to make difficult choices regarding his relationship with Blackfire and his duties as a hero.
Well, there are several places. First, of course, is AO3 as it's very popular among fanfiction writers and readers. There, you can use the search function and type in 'luffy loves robin' to narrow down the results. Also, some smaller One Piece fan communities might have their own collections or links to such fanfictions. You could try searching for One Piece fan forums and see if they have any recommendations or hosting of these types of stories.
Some smaller, more niche fanfic communities might also have what you're looking for. For example, certain Discord servers dedicated to the fandom of the characters. But to access these, you usually need to find an invite link. You can try looking for them on Reddit, in the relevant sub -reddits. There might be people sharing links to such Discord servers where you can find fanfics about Blackfire having a crush on Robin.
Well, typically in such fanfiction (assuming it's not adult - related), you might expect a more intense and perhaps angsty relationship exploration between Robin and Blackfire. It could involve their different personalities clashing or meshing in unique ways. Maybe there will be a focus on how they deal with their respective powers and how those play into their relationship.
You can start by looking at FanFiction.net. It has a large collection of fanfictions, including those about Starfire and Blackfire. Another great place is Archive of Our Own (AO3). It has a well - organized tagging system, making it easier to find specific types of stories related to these characters.
I'm not sure specifically about 'robin and blackfire lemon fanfiction' as it might involve adult - oriented scenarios which are not suitable for general discussion. But if you just want to read about Robin and Blackfire's interactions, you can try some mainstream fanfiction sites. Some stories might focus on their adventures together, or how they deal with each other in different situations, like facing a common enemy or working towards a shared goal.
You can try Archive of Our Own (AO3). It has a large collection of fanfictions, including many 'Robin x Robin' ones. Just use the search bar and type in 'Robin x Robin' and you'll get a bunch of results.
It can start with a common goal. For example, they both want to stop a certain group of criminals. Working towards this goal makes them interact more, leading to the development of their relationship.
One common theme is the clash of different cultures. Robin is from Earth and Blackfire is from another planet, so their cultural differences often play a big role. Another theme is the idea of forbidden love, as they are often on opposite sides at first. For example, Blackfire has been an antagonist in some cases.
Finding 'blackfire lemon fanfic' can be a bit tricky. You could start by looking on popular fanfic websites like Archive of Our Own (AO3) or FanFiction.net. But keep in mind that if it contains inappropriate content, it may not be allowed on all platforms or may be restricted to certain age - gated areas.