There are some fanfictions that explore a romantic relationship between Black Widow and Black Panther. However, this often takes a lot of creativity as they come from different parts of the Marvel universe. For example, a story might have them meet during an Avengers - related event and gradually develop feelings for each other over the course of several adventures together.
A great fanfiction concept could be a story set in an alternate universe where Black Widow is a Wakandan spy and Black Panther is her mentor. This would flip their normal dynamic and allow for a whole new set of interactions and character development. They could face internal Wakandan threats together and Black Widow could learn about Wakandan culture from Black Panther.
Yes, there might be some out there. You can start by looking on fanfiction websites like Archive of Our Own. However, keep in mind that such crossovers are quite creative and might not follow the official Marvel storylines very strictly.
I really liked 'Green and Black'. In this fanfic, it shows a scenario where Black Widow has to protect the Hulk when he's in a vulnerable state. It's full of action and also some really tender moments between the two characters as they learn more about each other.
One great 'Black Panther' fanfiction is 'The New Wakanda' which explores a Wakanda that has to face a new, unseen threat. It has great character development for T'Challa and his sister Shuri.
One great Gravity Falls Black Widow fanfiction is 'The Black Widow in Gravity Falls' on FanFiction.net. It has an interesting plot where Black Widow somehow ends up in the Gravity Falls universe and teams up with the twins to solve the mysteries there. The character interactions are well - written and it keeps the essence of both the Gravity Falls world and Black Widow's character.
One great fanfiction is 'The Bond Between Black Widow and Hawkeye'. It delves deep into their relationship, showing how they became such close comrades in the Avengers. It has some really cool action scenes that are in line with their characters in the MCU.
A theme that has been growing in popularity is redemption. Suppose Black Widow has a past mistake or Black Panther faces a situation where he needs to make amends. Fanfiction writers might create a scenario where they help each other find redemption. It could be something like Black Widow helping Black Panther deal with a political fallout in Wakanda due to a decision he made, or Black Panther guiding Black Widow to atone for something she did during her time in the Red Room.
One interesting storyline could be a mission where Black Panther and Black Widow have to team up to take down a powerful international arms dealer. They could combine their unique skills, with Black Panther's enhanced strength and agility from the heart - shaped herb and Black Widow's spy training and combat expertise. Another could be a story set in Wakanda where Black Widow is sent on a diplomatic mission and she and Black Panther develop a mutual respect and friendship as they deal with political intrigue within Wakanda and threats from outside forces.
A frequent theme might be the idea of two strong, independent characters coming together. Both Black Panther and Black Widow are powerful in their own right. In fanfiction, they might learn from each other's strengths and overcome their individual weaknesses while falling in love. Also, themes of trust and betrayal could be explored, considering Black Widow's history as a spy.
One great Mara Jade and Black Widow fanfiction is 'Alliance of Shadows'. It combines their skills in an exciting way, showing how they could team up in a dangerous mission. The author does a wonderful job of portraying their personalities.
One popular 'Harry x Black Widow' fanfic could be 'Cross - Dimensional Allies'. It explores an interesting scenario where Harry's magical world collides with Natasha Romanoff's spy - filled universe. The characters' interactions are well - written, showing how their different skills and backgrounds play off each other.