In a fanfiction scenario, they could also form a deep friendship. Picture them sharing stories about their pasts - Gamora about her family and her struggles against Thanos, and Black Widow about her time in the Red Room. This mutual understanding could lead to a strong bond between them, and they could end up being a powerful duo in future adventures.
In the 'izuku meets black widow fanfiction', perhaps they would team up to fight against a common enemy. Izuku's unique quirk combined with Black Widow's combat expertise could make for an interesting dynamic. They could also exchange their life stories, with Izuku talking about his journey to become a hero in his world and Black Widow sharing her experiences in the dangerous world of espionage.
On an emotional level, Gamora has a lot of pent - up anger towards Thanos. Black Widow has her own emotional baggage from her past. They could either clash because of these intense emotions or bond over their shared experiences of dealing with difficult pasts. If they clash, it could be a major obstacle in their relationship, but if they bond, it could make their connection even deeper and more meaningful.
She might be kidnapped by a supervillain who wants to use her skills for his own evil plans. For example, he could force her to break into a highly secure facility to steal some dangerous weapon or technology.
In a 'Captasha captain meets black widow' fanfiction, the plot might involve Captasha being a new hero in the Marvel universe. Black Widow is sent to assess if Captasha can be trusted. They meet in a secret S.H.I.E.L.D. location. At first, Black Widow is skeptical, but as they train together, they develop a mutual respect and end up working together to stop a terrorist organization that has stolen dangerous technology.
Well, in such a story, the black widow could be made to forget its natural instincts. For example, it usually builds webs and hunts for prey. But when hypnotized, it might not do any of these things. It could be led to a different place, like a meadow, where it has never been before, and just stay there calmly as if it's in a different world.
In a fanfiction where Black Widow and Hawkeye meet, they might start by reminiscing about their past missions together. They could be in a dangerous situation, like being hunted by a new enemy. Their skills would complement each other, with Black Widow's stealth and Hawkeye's marksmanship. They might also have some deep conversations about their lives outside of the Avengers, and how they deal with the traumas they've faced in their line of work.
A good antagonist could be a rogue S.H.I.E.L.D. agent who has his own plans for power. He might see Captasha and Black Widow as threats to his scheme. This agent could have access to some high - tech weapons and a group of loyal but misled followers.
One possible plot could be that Captain America and Black Widow are on a mission to retrieve a powerful and dangerous artifact. Along the way, they face numerous enemies and have to rely on each other's skills. Cap's super strength and leadership combined with Black Widow's stealth and combat skills make them a formidable team. They also start to understand each other on a deeper level, sharing stories from their pasts and building a stronger bond as comrades.
One possible plotline could be that Izuku is somehow transported to Black Widow's universe. There, he has to adapt to a world without quirks and learn to use more traditional combat methods.
She might find herself in a strange hotel room, surrounded by the glitz and chaos of Vegas. Maybe she has no memory of how she got there.