One way is to put them in life - threatening situations that force them to rely on each other completely. This could be like being trapped in an enemy base during the Age of Ultron chaos. They have to depend on each other's skills to escape. As they do, they start to open up more about their feelings, and their relationship grows deeper. Also, adding some emotional conflict, like Natasha being afraid to get close to Clint because of her past, and Clint trying to break down those barriers can further develop their relationship.
One idea could be exploring Clint and Natasha's past missions more in - depth. Maybe there were some unspoken feelings that emerged during a particularly dangerous mission before the events of Age of Ultron. Another could be a fanfic where they get separated during the chaos in Age of Ultron and their journey to find each other again, facing new enemies and challenges along the way.
Their relationship could develop through shared experiences. For example, fighting side by side against Ultron's forces would build trust. Steve might admire Natasha's skills and her ability to adapt, while Natasha could be drawn to Steve's unwavering sense of justice.
In fanfiction, their relationship could be developed by introducing external factors that test it. For instance, if a new villain targets them specifically because of their relationship. This would force them to fight together and protect each other even more. Another aspect could be their relationship with the other Avengers. If some of the Avengers are suspicious of their motives, Wanda and Pietro would have to rely on each other for support. Also, exploring how they handle Pietro's sometimes over - eager nature and Wanda's more cautious approach. They could learn from each other and grow closer as a result.
In fanfiction, their relationship can be a vehicle for exploring different themes. Their friendship, which is laced with a sense of camaraderie from their time in S.H.I.E.L.D., can be used to explore loyalty and sacrifice. Maybe in a story, Natasha has to make a difficult choice that could put Clint in danger, but she does it for the greater good, and Clint later forgives her because of their deep bond. This kind of exploration gives readers a better understanding of the values that these characters hold dear.
Another storyline could be about their growing feelings for each other in the backdrop of the chaos of Age of Ultron. Maybe Natasha is injured during a battle, and Steve is forced to confront his true feelings as he takes care of her. This could lead to some tender moments between them and a deeper exploration of their connection.
No. Fanfiction that involves sexual content is not appropriate as it goes against the ethical and moral standards. Such content objectifies the characters and is not in line with the positive and respectful portrayal that should be associated with fictional characters.
One common theme is loyalty. Their loyalty to each other, whether in the face of danger or difficult decisions, is often explored. For example, in many fanfics, they will stand by each other no matter what the cost.
Writing such 'fanfic' involving sexual content is inappropriate and goes against ethical and moral standards. Fanfiction should focus on positive aspects like friendship, adventure, or character development within the framework of the original work's themes.
Trust is a big theme. Their relationship is built on trust in fanfic, and many stories revolve around how they maintain that trust even in difficult situations. Also, the theme of sacrifice often comes up, as they are both willing to sacrifice for each other.
One idea could be a story where Clint and Natasha are forced to go into hiding during their pregnancy because of some threat from their past enemies. They have to rely on each other more than ever, learning new things about their relationship as they prepare for the arrival of their baby.