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, maybe Harry goes to Vegas on a whim. He meets someone special there, like a girl who is also there for a wild adventure. They fall in love quickly and decide to get married in one of those kitschy Vegas chapels. Then they might face some challenges as they get to know each other better, like finding out they have very different lifestyles.
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.
It could be a random stranger he meets at a Vegas nightclub. Maybe she's a singer or a dancer there.
One character could be Harry, of course. The other main character could be a singer named Ava who is performing in Vegas. She's got a big heart and a wild side. There could also be a Vegas local named Jack who befriends Harry and kind of guides him through the process of getting married in Vegas, giving him local insights.
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.
One possible plot could be that Apollo marries a mortal. He might meet her in a beautiful garden where she is tending to the flowers. He is immediately smitten by her beauty and kindness. Their relationship could face many challenges, like the wrath of other gods who think Apollo is making a mistake by choosing a mortal. But Apollo's love for her is so strong that he is willing to face any consequences to be with her.
In a 'natsu gets married fanfiction', perhaps Natsu meets a new character who he falls deeply in love with at first sight. This new person might be from a different land. Natsu has to learn about her culture and traditions in order to marry her. His friends from the guild are initially skeptical but then come to support him wholeheartedly as they see how much he cares for this person.
Well, in this fanfiction, perhaps Artemis is marrying a mortal she has fallen in love with. The story could be about how she tries to balance her life as a goddess with her new role as a wife. She might have to hide her true identity from the mortal world at first, and then as the story progresses, she reveals it, causing a lot of drama and yet also a deeper understanding between her and her new spouse.
Perhaps in this 'Harry Potter in Vegas' fanfiction, Harry accidentally apparates to Vegas instead of his intended destination. There he meets a group of American wizards who are using Muggle Vegas as a cover for a secret magic convention. Harry gets involved in a mystery where a powerful magical artifact has gone missing and he has to find it before it falls into the wrong hands.
Well, in a 'Harry Potter Marries in Vegas' fanfiction, it could start with Harry being frustrated with the wizarding world's formalities regarding relationships. He goes to Vegas for a break and gets drunk. There, he meets a girl who seems to understand his struggles. They have a wild night and end up at a wedding chapel. After the marriage, he has to figure out how to incorporate her into his life in Hogwarts or wherever he is living at that time. Maybe she has some magical abilities he doesn't know about at first.