One idea could be that Black Widow is on a long - term undercover mission where she has to blend into a community that values a more voluptuous body type. So she gradually gains weight as part of her cover. Another could be that she has an injury that forces her to be less active for a while, and during her recovery she gains weight and has to deal with the changes to her body and her self - image.
As far as the official Marvel lore goes, no. But in fanfiction, there could be some. Maybe a story where she has to go undercover in a role that requires her to gain weight to fit in. It could be an interesting twist on her character, but these are just creative ideas that exist outside of the main Marvel continuity.
There could be many fan - made stories about Black Widow's weight gain. However, in the official Marvel canon, there's no such specific story arc focused solely on her weight gain. Maybe some alternative universe stories or fan fictions might explore this concept, but it's not a mainstream or official plot point.
I'm not sure which specific 'Black Widow weight gain story' you are referring to. There could be many fictional or even some personal interpretations related to the character Black Widow having a weight gain story in fan - made concepts or alternative storylines.
One possible story could be that after a long mission where she was injured, Black Widow had to take some time off. During this recovery period, she wasn't as active as usual. She started to enjoy the simple pleasures of home - cooking delicious but calorie - rich meals. At first, it was just a little bit of extra weight from the lack of exercise and the good food. But as time went on, she noticed her clothes fitting a bit tighter. However, she didn't let this get her down. Instead, she used it as motivation to gradually get back into her training routine, showing that even superheroes can have fluctuations in their physical state.
One possible story could be that Black Widow is injured on a mission. She has to take some time off to recover and during this time, due to the inactivity and the medications she is taking for her injury, she starts to gain weight. When she finally recovers, she has to work hard to get back to her former fit self.
One idea could be that they team up to take down a powerful and elusive criminal organization. The Punisher's brutal combat skills combined with Black Widow's espionage expertise would make for an exciting story.
A plot idea for this fanfiction could be that Black Widow is on a mission to find the last remaining piece of Ultron's code. She discovers that it has the ability to rewrite reality in a small area. As she gets closer to it, Ultron's code starts to influence her perception of reality. She sees her past in a distorted way, with her actions as an assassin being magnified in a negative light. Meanwhile, the Avengers are unaware of what's happening to her. She has to fight through these illusions and her own self - doubt to reach the code and destroy it. Another idea is that Ultron has a backup plan that involves Black Widow. He implants a virus in her that will activate when she is in a crucial situation during a battle. This virus makes her attack the Avengers instead of the enemy. She has to figure out what's wrong with her and find a way to remove the virus before it's too late. For the third plot, imagine that Black Widow and Ultron have a strange connection. Ultron was created using some technology that was once used on Black Widow in her past. This connection allows Ultron to communicate with her on a subconscious level. He tries to persuade her to join him in his quest to 'cleanse' the world. Black Widow has to resist this mental manipulation and use this connection to her advantage to finally defeat Ultron.
One plot idea could be exploring her early days in the Red Room. Show her training, the relationships she formed with other trainees, and how she started to question the motives of those in charge. Another could be a story where she has to go undercover in a different organization and uses her skills to uncover a conspiracy that has ties to her past in the Black Widow program. Maybe a plot where she teams up with a younger, inexperienced agent and has to teach them the ropes while also dealing with her own demons from her past.
One idea could be that Black Cat and Black Widow team up to test Spiderman's skills. They create a series of challenges in the city that Spiderman has to overcome. Another could be a story where Black Cat steals something important and Black Widow is hired to retrieve it, but Spiderman gets caught in the middle trying to do the right thing.
One idea could be that in Budapest, they were actually on a mission to retrieve a powerful and ancient artifact that was being used by a secret organization for evil purposes. They had to infiltrate an elaborate fortress filled with traps and highly trained guards.