One possible fanfiction could be set in their early days. Jiraiya, with his brash and confident self, tries to court Tsunade in his own clumsy way. Tsunade, initially resistant, starts to see his true heart beneath the bravado. They could go on adventures together, and during a dangerous moment, Jiraiya's protection of Tsunade makes her realize her deeper feelings for him.
Another aspect is Jiraiya's sense of humor. He can make Tsunade laugh even in the darkest of times. His jokes and light - hearted nature can break through Tsunade's tough exterior and make her feel more at ease around him, which is a first step towards falling in love in the context of these fanfictions.
One possible scenario in this fanfiction could be that Naruto grows up with a more balanced upbringing. Tsunade might teach him medical ninjutsu and how to control his emotions better. Jiraiya, on the other hand, would surely train him in powerful combat techniques and in the ways of the sage. Naruto would probably be more mature and well - rounded at an earlier age, with a combination of Tsunade's tough love and Jiraiya's adventurous spirit guiding him.
A fanfiction could depict their married life as a blend of adventure and domesticity. They could go on missions together, using their combined skills to defeat enemies. At home, they would enjoy simple pleasures like cooking together (even if Jiraiya is not a very good cook) and sharing stories of their day. Their relationship would be a balance of their individual personalities and the love they have for each other.
Tsunade and Jiraiya had a complex relationship. They grew up together as comrades in the Hidden Leaf Village. Jiraiya had deep feelings for Tsunade. However, Tsunade was often hesitant. Jiraiya was a bit of a free - spirited and adventurous type, while Tsunade was more reserved and burdened with her past traumas. Their love was more of an unspoken and underlying current in their relationship, often overshadowed by their duties and the chaos in the ninja world.
A great element is the contrast between their personalities. Jiraiya is more carefree and adventurous while Tsunade is serious and responsible. This contrast can create interesting dynamics in their relationship. For example, Jiraiya might drag Tsunade into some wild escapades which she initially resents but later enjoys.
In Tsunade and Jiraiya love fanfiction, it often shows Tsunade's vulnerability. Usually seen as a strong and tough leader, when it comes to her feelings for Jiraiya, she can be shy and hesitant. For example, she might blush when Jiraiya compliments her, which is a side of her not often shown in the original series. This shows a different dimension of her character.
One great example could be a fanfiction where Tsunade and Jiraiya are on a mission together and during the mission, they start to realize their long - hidden feelings for each other. They might have a moment of danger where Jiraiya saves Tsunade, and that act of heroism makes Tsunade see him in a new light.
In this fanfiction, their relationship would be transformed. They would be like a married couple in a way, but without the formalities. Jiraiya would probably tone down his womanizing ways as he has a family to think about now. Tsunade would be more open and less prickly around Jiraiya. They would bicker less and cooperate more. Their relationship would be centered around Naruto, and as he grows, they would grow together as a family unit, with their bond getting stronger over time.
I really like the fanfiction 'Love's Unlikely Start'. In this story, it begins with an accidental encounter that forces Tsunade and Jiraiya to work together closely. Through this, Tsunade starts to see Jiraiya in a new light, and the chemistry between them builds up in a very natural way.