This is not a valid or advisable aspiration. Comics can sometimes depict extreme or unethical things, but that doesn't mean it's something to strive for. Look for careers that contribute positively to society instead.
I wouldn't recommend pursuing such a path. Becoming involved in pornographic content is not a positive or ethical choice and can have serious negative impacts on your life and reputation.
I wouldn't recommend pursuing such a career. The adult entertainment industry, especially in the form of 3D comics, comes with a lot of risks and ethical concerns.
Perhaps it's a shinobi who has retired after a long and eventful career. He could be someone who has seen the darker side of the shinobi world and wants to make sure Naruto doesn't go down the wrong path. He might have been a wandering shinobi who finally settles down with Naruto. For example, he could be a shinobi from a different village who has a unique set of skills to teach Naruto.
Well, that's a very unconventional and probably not very suitable topic for a fanfic. Naruto is typically known for his ninja skills and growth, not for such an extreme and adult-oriented role.
Well, comics are not a reliable guide for such a thing. In reality, entering the adult entertainment industry is complex and comes with many legal, ethical, and personal challenges. It's not something to be taken lightly or pursued based on comic depictions.
It might have been a combination of factors. Maybe the setting, the plot developments, or the way the characters interacted that led to this unlikely love. Sometimes, in fanfiction, the author can create very compelling and unexpected romantic scenarios.