Since 'lemon' content is inappropriate, let's consider their general characteristics. Kovu is often depicted as a strong and determined character. He has to deal with his past and his place in the Pride Lands. Simba is the noble king, with a sense of responsibility. In proper fanfiction, their interactions might show Kovu learning from Simba's wisdom and Simba coming to accept Kovu as part of the pride.
As I don't know what 'kovu' is, I can't say what the story is about. It could be about anything from a personal journey if 'kovu' is a person, to the history of a brand if it's a product name.
I really wish I could tell you the 'kovu full story', but without more information about 'kovu', it's impossible. 'kovu' could be a made - up term in a specific genre like a fictional story, or it could be a very niche thing. If you can explain what 'kovu' is, for example, if it's a person, a place, or an event, then I can give you a proper story.
I'm not entirely sure if there is a specific 'kovu and kiara pregnant fanfiction' out there. It depends on the creativity of the fanfic writers in the community. Some might find the idea of them having a family an interesting plot point and have written about it, while others may not have explored this aspect yet. You could also check some specialized Lion King fanfiction groups or forums to see if anyone knows of such a story.
One common theme is the struggle against the odds. Since they are from different backgrounds in the original story, fanfiction often explores how they overcome the barriers between them.
There could also be a plotline where there is some sort of danger threatening the Pride Lands. Kovu and Mufasa, despite their differences, team up to face this threat. Kovu brings his unique skills and knowledge from his pride, and Mufasa uses his wisdom and leadership. As they work together, they develop a mutual respect for each other that was not there before.
Well, in the 'Lion King 2 Kovu Story', first, Kovu is introduced as a young lion being groomed for revenge by the Outsiders. Then, when he meets Kiara while she is on an adventure outside the Pride Lands, it sets in motion a series of events. As they interact more, there is growing suspicion from Simba towards Kovu. But the biggest event is probably when Kovu decides to go against the Outsiders' original plan and instead work towards peace. This decision ultimately leads to the resolution of the conflict between the two lion groups.
One common theme could be redemption. Kovu has a complex past and his relationship with Simba can be a vehicle for exploring how he can redeem himself in Simba's eyes or in the eyes of the pride.
The main characters are clearly Kiara and Kovu. Kiara, being pregnant, is at the center of the story. Kovu, as her mate, is also a very important character as he will be involved in all the events related to Kiara's pregnancy, like taking care of her and preparing for their cubs.
One possible plot could be about how Kiara and Kovu deal with the upcoming arrival of their cubs. They might face challenges like finding a safe place to raise their family in the pride lands. There could also be excitement among the other animals in the pride as they await the new arrivals.