Well, one thing that could happen is a really chaotic wedding. Maybe all his wizard friends show up in Vegas not quite understanding the Muggle ways. For example, Hermione might be constantly trying to figure out how all the Vegas magic tricks are done, thinking they're some kind of new wizardry. And Ron would probably be more interested in the food and drinks at the casino. Harry, on the other hand, might be a bit overwhelmed by the whole flashy Vegas atmosphere but still be happy to be getting married in such an unusual place.
In this scenario, there could be some interesting cultural clashes. Vegas is known for its over - the - top shows and entertainment. So, the wedding might end up being part of a big show. Harry and his bride could be serenaded by Elvis impersonators during the ceremony. And after the wedding, instead of a traditional wizarding feast, they might have a Vegas - style buffet with all kinds of strange Muggle foods that the wizards and witches have never tasted before. It would be a really unique and fun take on a Harry Potter story.
Since it's in Vegas, there might be some unexpected guests. Maybe some of the Vegas magicians mistake Harry for one of their own and try to include him in their act during the wedding. The wedding cake could be a multi - tiered monstrosity, with each tier having a different magical or Muggle - inspired decoration. For example, one tier could have Hogwarts castle made out of icing, and another could have the Vegas skyline. It would be a wedding that combines the best (and maybe the silliest) of both the wizarding and Muggle worlds.
In this fanfiction, it might be that Harry is in Vegas for a bachelor party or just a solo trip. He stumbles into a situation where he meets a girl. There's a lot of fun and chaos in Vegas, like partying at the casinos. Amid all this, they fall in love quickly and get married. After that, they have to figure out if their relationship can work outside of the Vegas bubble.
Well, perhaps Harry and his friends could visit the famous Vegas shows. They might be amazed by the magic tricks there, thinking they're similar to the spells they know. And they could explore the glittering casinos, but of course, not for gambling in a proper 'Harry Potter' way. Maybe Hermione would be interested in the libraries in Vegas, if there are any special ones.
Maybe Harry Potter uses his magic to create some amazing illusions on the Vegas Strip, and Supergirl is both amazed and a bit concerned about the chaos it might cause. She helps him keep things under control while also having fun with the new magical experiences.
It could be a random stranger he meets at a Vegas nightclub. Maybe she's a singer or a dancer there.
Another possibility is that Harry ends up married to a Muggle he meets in Vegas. This would be really interesting as he has to navigate the differences between the wizarding world and the Muggle world while being married to someone who has no idea about magic at first. It would be a story of discovery and adjustment for both Harry and his new spouse.
Well, in fanfiction, it could be really interesting. Harry might first try to figure out where he is. Since he's in Vegas, he could encounter all sorts of muggle things like slot machines and big shows. He might use his magic by accident and cause a stir among the muggles. And then he'd probably start looking for a way to get back to his own world, either by trying to find some kind of magical object or by using his own magic in a new and creative way.
Well, it would be a really wild and interesting scenario. In fanfiction, anything can happen. Harry Potter brings his wizarding world knowledge and magic, while Supergirl has her super - powers. They might have a very unique wedding ceremony in Vegas. Maybe Harry would use magic to create some amazing effects during the wedding, and Supergirl could fly around showing off her powers. Their life together would be full of adventures, like fighting bad guys with a combination of magic and super - strength.
Harry and Luna could get married in Vegas. Luna, with her unique and dreamy personality, might be drawn to the eccentric and fun - filled atmosphere of Vegas. They could have a wedding ceremony under the neon lights, with magical creatures as their witnesses.
Well, Harry could marry one of the veelas. Given their beauty and allure, it would add an interesting dynamic to the story. Their relationship could involve Harry having to deal with the jealousy of other wizards and also the cultural differences of the veelas. Or he could marry a descendant of one of the founders of Hogwarts. This would tie in a lot of Hogwarts history into their relationship, and their wedding could be a grand event that unites different factions within the wizarding community who have ties to the founders.