A big theme is the discovery of self - reliance. Harry, who is used to having some support at Hogwarts, now has to rely on his own instincts and Sirius' guidance. Also, the theme of secrecy plays a part. They need to keep their presence on the streets a secret from certain people in the wizarding world who might try to use their situation against them. This adds an element of mystery and danger to the story.
I recall a fanfic named 'Streetside with Sirius and Harry'. It's a short but sweet one. It focuses more on the emotional connection between Harry and Sirius during their time on the streets. There are some really heart - warming scenes that show their unbreakable bond.
Perhaps there could be a plot where Sirius and Harry team up to uncover secrets about the Dark Arts that are hidden in the Black family home. As they explore the old rooms and artifacts, they might stumble upon a powerful and dangerous object that the Death Eaters are also after. This would lead to a race against time to either destroy or protect the object while also fending off the Death Eaters.
One possible plot could be Percy's struggle for survival on the streets. He might have to find food and shelter daily, facing challenges from other street - dwellers or the elements. For example, he could be constantly looking for a warm place to sleep at night during the cold winter months.
Maybe there is a social worker named Mrs. Johnson who is trying to help the homeless in the area. She tries to reach out to Percy, but he is initially hesitant because he has trust issues. These characters can all interact with Percy and shape his story while he lives on the streets.
One possible storyline could be that Hermione has lost her memory and ends up on the streets. She has to rely on her wits and some latent magic skills to survive. Maybe she befriends some muggles who are also homeless and they form an unlikely community, all while she gradually regains her memories and tries to find her way back to the wizarding world.
Well, one possible plot could be Percy having lost his memory. He's living on the streets, trying to figure out who he is. Maybe he has these strange dreams about a sword and a camp, but he can't quite make sense of them. As he survives on the streets, he starts to discover he has some strange abilities, like being able to control water from the puddles during rainstorms.
One possible plot could be that Peter has lost his home due to some financial difficulties or perhaps after a villain attack destroys his place. He has to use his Spider - Man skills to survive on the streets. He might start by finding safe places to sleep at night, like on rooftops where he can also keep an eye out for trouble. Maybe he befriends some street kids and protects them from local thugs, all while trying to keep his identity a secret.
Their relationship would likely become very close. Harry, who has always longed for a family, would finally have someone who truly cares about him like family. Sirius, on the other hand, would get to be the father - figure Harry needs. They would probably have a lot of heart - to - heart talks, sharing their joys and sorrows.
Well, 'harry mpreg on the streets fanfiction' could be about Harry in a very different and often AU (alternate universe) setting. Maybe in this fanfic, the streets are a central location. Harry could be part of a community on the streets where he discovers he's pregnant in a male - capable way. It might deal with how he copes with this, his relationships with other characters, and how the street - life environment affects his situation. For example, he might face discrimination or find unexpected support.