Their relationship could start off as a reluctant alliance. The Dragonborn might initially be wary of Ingun due to her association with the Black - Briar family. But as they face common enemies and challenges, they begin to trust each other more. For example, when they are both targeted by a group of necromancers, they have to rely on each other's skills to survive.
If the fanfiction takes a more romantic turn, their relationship could develop slowly. They might share small, intimate moments during their travels, like watching a sunset over a beautiful landscape. Little by little, they realize their feelings for each other. However, they would have to overcome obstacles such as Ingun's family's disapproval and the Dragonborn's own quest - related responsibilities.
They could start off as strangers. Maybe the Dragonborn is passing through and sees Ingun in trouble, like being harassed by some ruffians. He steps in to save her, and she thanks him with the gift of the special lemon. This small encounter starts their relationship, and as they talk more, they find out they have common goals, like protecting Skyrim from a new threat. This shared purpose brings them closer together.
One idea could be that the Dragonborn and Ingun Black - Briar team up to expose the dark secrets of the Black - Briar family. They might start by investigating the skooma trade that the family is rumored to be involved in. The Dragonborn's skills in combat and persuasion, combined with Ingun's knowledge of the family's inner workings, could make for an exciting adventure.
One idea could be that the Dragonborn and Ingun Black - Briar team up to solve a mystery in Skyrim that involves a powerful magic lemon. Maybe this lemon has the power to either heal the land or cause great destruction, and they must figure out how to control it. Another plot could be a love triangle between the Dragonborn, Ingun, and someone else who is also after the secrets of the Black - Briar family and the special lemon.
Another way is through a shared enemy. There could be a group or a creature that is causing trouble specifically related to the lemons, like a bandit group stealing lemon shipments or a magical being that is corrupting the lemon groves. The Dragonborn and Maven have to put aside their differences and join forces. As they fight together, they get to know each other better. The Dragonborn might see Maven's shrewdness as a useful trait, and Maven might see the Dragonborn's power as an asset for her future plans.
The relationship development could be quite complex. In the beginning, they may not think of each other romantically. The Dragonborn is focused on his main quests, and Aela is dedicated to the ways of the Companions. However, during a particularly tough battle, say against a dragon priest, the Dragonborn is injured and Aela nurses him back to health. This act of kindness makes the Dragonborn see Aela in a new light. They start spending more time together outside of combat, like sharing a meal at the Bannered Mare in Whiterun. As they get to know each other better, they realize they have a strong connection, and this eventually leads to marriage. After that, they face the challenges of married life together, such as how to balance their individual duties and their life as a couple.
Add depth to the setting. Riften is a city full of seedy characters and hidden agendas. Describe the city in detail, from the sewers where thieves lurk to the mead halls where Maven holds court. This will make the story more immersive and help the reader better understand the context in which the dragonborn and Maven interact.
There could be a fanfiction where the dragonborn is in a romantic relationship with Maven Black - Briar. However, this relationship is full of challenges as the dragonborn's heroic nature often clashes with Maven's more self - serving and sometimes underhanded ways. They constantly struggle to find common ground while dealing with the various threats to Riften.
It could develop in a more mysterious way. For example, the female Dragonborn might start having dreams where Alduin is guiding her to discover some hidden dragon knowledge. This would lead to a sense of indebtedness on her part and a strange bond would form between them.
Their relationship could start off rocky. Quake might be a bit wary of Black Widow's past as an assassin. But as they face challenges together, like fighting a common enemy, they start to respect each other's skills. Slowly, they might become friends and rely on one another in tough situations.
A more humorous plot could be that the Dragonborn accidentally turns Maven Black - Briar into a lemon. Now, the Dragonborn has to find a way to reverse the spell while dealing with the chaos that ensues in Riften without its powerful leader. Along the way, they learn more about Maven's true nature and the importance of lemons in some of the local rituals that Maven was secretly involved in.