There is no such thing as a good 'drinking piss first time story'. It is a very bad idea and not at all a positive experience. Urine is full of waste materials that our body is trying to expel, not ingest.
I seriously doubt there is a legitimate 'Harry Petunia Piss Drink Fanfic'. Fanfic communities generally focus on positive and creative interpretations of the original works. This idea goes against the norms of good taste and the general spirit of fanfiction, which is to expand on the story in a meaningful and respectful way.
Drinking piss is not a normal or acceptable practice, so I don't have such a story. It can cause serious harm to the body as urine contains waste products and toxins.
No, in no mainstream culture is drinking urine considered acceptable or having any positive significance. It goes against basic principles of health and hygiene.
No. This kind of description involves vulgar and inappropriate content which has no place in proper fanfiction or general discussion related to Harry Potter.
One common story is trying alcohol at a celebration. For example, at a New Year's party. People are in a festive mood and might be encouraged to try a glass of champagne. It's often a small step into the world of drinking, with the fizzy and slightly sweet taste being a new experience.
I hope not. 'Harry Potter' is a family - friendly franchise, and creating fanfics with such inappropriate and vulgar content goes against the spirit of the original work. J.K. Rowling has created a magical world full of positive values, and we should focus on positive and creative fan - made works.
I think it's completely unacceptable. Harry Potter is a beloved franchise, and Petunia is an important character in it. To have such a grotesque idea like this associated with them is not only disrespectful to the source material but also to the fans who love the series for its magical and positive elements. It has no place in the world of fanfiction.
It's a really messed up situation. Such parents can cause serious emotional and psychological harm to their kids, affecting their self-esteem and sense of security.