Well, perhaps a '50 Shades Wedding' in fanfiction could feature a very private and exclusive ceremony. Only their closest friends and family are invited, and it takes place in a secluded, luxurious location like a private island. The bride could wear a dress that has a touch of mystery, maybe with some lace details that are both elegant and a bit edgy, similar to the style of the series.
One idea could be a wedding that combines the opulence shown in the '50 Shades' series. For example, a grand venue filled with red roses everywhere, just like Christian Grey's love for grand gestures. Another could be a wedding where the couple exchanges unique and personalized vows that reflect their complex relationship, much like Ana and Christian's relationship in the books.
A wedding in Camp Half - Blood would also be great. They could incorporate elements of Greek mythology in the decor, like having statues of the gods and goddesses around. Their friends from the camp could all be part of the celebration, making it a big, fun event.
One idea could be exploring Christian and Ana's life after they have a child. Maybe the challenges of raising a baby while still maintaining their unique relationship. Another could be a story from the perspective of one of their friends, observing how their relationship has changed over time.
A cool concept would be a double wedding in the fanfiction. Maybe Levy and Gajeel along with Mirajane and Laxus getting married at the same time. The guild would be split into two teams to help with the preparations. There would be a lot of friendly competition between the two groups to make their respective weddings the best, with lots of magical touches added by the mages of Fairy Tail.
One idea could be a long - lost relative showing up at the wedding and causing chaos. Maybe they claim to have a right to some family heirloom that was supposed to be part of the wedding decor. Another could be a sudden storm during the outdoor wedding, and the Gallaghers have to quickly move the ceremony indoors, with all the hilarity and chaos that comes with it.
Another plot could be that one of the main characters has a pre - wedding jitters dream where everything goes wrong at the wedding. But then they realize that it's just their fears getting the best of them, and it actually strengthens their resolve to have a perfect wedding. This can also show the support of their friends and family as they help the character through their doubts.
One interesting plot idea could be exploring Christian's past in more depth. Maybe his early relationships or how his family influenced his behavior.
One idea could be that Bella is forced into the wedding with Demetri due to some vampire politics. But as time goes on, she discovers a softer side to Demetri that she didn't expect. Another could be a time - travel plot where Bella from the future comes back to stop the wedding but ends up falling in love with Demetri in the past. Or perhaps there's a mix - up where Bella thinks she's marrying Edward but it turns out to be Demetri at the altar, and then they have to figure out their relationship from there.
A really interesting plot could be that right before the wedding, a dark wizard from Ron's past tries to disrupt it. Hermione and Ron, along with their friends, have to fight off the threat while still making sure the wedding goes on as planned. It would add a lot of action and adventure to the fanfiction.
A great plot for Harry and Hermione's wedding fanfiction could be that they face some sort of dark magic threat right before the wedding. They have to use their combined skills and the help of their friends to overcome it. Then, the wedding becomes not just a celebration of their love but also a victory over evil. For the actual wedding, Hermione could wear a dress that has some magical properties, like changing colors to match her mood, and Harry could have a special wand that he uses to create a unique display of magic during the ceremony.
One idea could be that Merlin has to hide his magic even on his wedding day to Arthur. Maybe there are some old enemies who try to disrupt the wedding, and Merlin uses his magic subtly to protect everyone without being detected. Another plot could involve Arthur trying to incorporate some of Merlin's commoner traditions into the grand royal wedding, causing some comical and heartwarming moments among the nobility.