There could be a really interesting fanfiction where Harry Potter, Vegeta from Dragon Ball Z, and Piccolo end up in a stadium. Maybe they are forced to compete in some sort of magical - martial arts tournament. Harry could use his magic skills, like the Patronus charm to fend off attacks, while Vegeta and Piccolo show off their powerful energy blasts and combat techniques. The stadium would be filled with excited fans from all their respective universes, creating a really chaotic but exciting scenario.
One way is to have a magical accident. Maybe a wizard in the Harry Potter universe was experimenting with interdimensional travel and accidentally brought Vegeta and Piccolo to the stadium in the wizarding world. Then they all have to figure out how to get back to their own worlds while dealing with the chaos that ensues in the stadium, like angry fans or other magical creatures that are attracted to the strange energy.
I haven't actually read this specific 'piccolo and gohan lemon fanfiction', but generally, in fanfictions involving these two characters, it might explore their relationship in unique ways. It could be about their friendship evolving, or perhaps their teamwork in new and unimagined scenarios within the Dragon Ball universe.
A major theme is identity. Since she is a female version of Piccolo, she has to come to terms with who she is compared to the original Piccolo. Family also plays a role. In some fanfictions, she might be searching for her family or creating a new family of her own. Additionally, the theme of good vs. evil is common, as she battles against various villains.
I'm not that familiar with the specific 'Brian Piccolo Thanksgiving Day story'. Maybe it could be about how he spent the Thanksgiving Day with his family, sharing a big meal and giving thanks. It might also involve some special traditions he had on that day.
I'm not entirely sure which specific 'piccolo x gohan lemon fanfic' you're referring to. But generally, if it's a fan - made story, it might explore unique relationships and character developments. It could potentially show how Piccolo and Gohan interact in a different way than in the original series, perhaps delving into their friendship or a more complex emotional bond.