Definitely not. Such content violates the moral and ethical standards that should be maintained in the fan community. It can also make the original work seem vulgarized.
Well, a perfect lionheart story should have a clear goal for the main character to strive for. Include supporting characters that add depth and complexity. And don't forget a satisfying conclusion that leaves the readers feeling inspired.
The 'naruto lionheart fanfiction' is unique because it takes the well - known Naruto character and adds a whole new dimension to him. The 'lionheart' can represent courage, leadership, and strength in a different way than what's in the original Naruto story. It allows for new storylines and character developments that can be really exciting for fans. For example, Naruto might have to face challenges where he has to rely more on his 'lionheart' qualities rather than just his ninja skills.
Fanfiction should focus on positive aspects like character development, new plotlines within the boundaries of legality and ethics, rather than sexual content. So, I don't recommend seeking such sex - related fanfiction.
One popular 'naruto lionheart fanfiction' might be 'Naruto: The Lionheart's Adventure'. It often has Naruto in new and exciting scenarios with elements of the 'lionheart' concept added to his character development.
I'm not sure specifically who the authors of 'Eugene Black' stories are. There could be many independent or emerging authors with such works, or it might be a relatively niche or regional set of stories not widely known in the mainstream.