Well, perhaps in the fanfiction, the pool party is a secret gathering organized by Lucy. She invites all her Fairy Tail friends, and at the party, they discover a magical portal in the pool that leads to a hidden water - themed world. There, they have to face challenges together and find their way back, all while enjoying the pool party atmosphere.
One interesting plot could be that the Fairy Tail members hold a pool party to celebrate a big victory. During the party, there are various fun competitions like the best pool trick competition. Gray might accidentally freeze part of the pool, causing chaos but also lots of laughter.
In some 'Fairy Tail Pool Party Fanfiction', it could be about a pool party thrown by the guild master as a way to boost morale. Natsu might challenge everyone to a fire - resistant pool race, where he uses his Fire Dragon Slayer magic in a creative way to move through the water without burning it all up. This leads to an exciting and comical race among the members.
You could have a 'Magic Swap' party. In this party, the Fairy Tail members temporarily swap their magic abilities with each other. This would lead to some really funny and interesting situations. Natsu trying to use Gray's ice magic and constantly slipping on his own ice creations, or Erza using Lucy's celestial magic and trying to summon spirits in a very Erza - like strict way.
Happy, Natsu's sidekick, is almost always present in these fanfictions. His ability to fly can add an extra element of fun to the pool party, like dropping water balloons from above. And of course, the guild master Makarov might be involved, either as the organizer or as an observer, adding his wisdom and humor to the whole pool party scenario.
Perhaps a plot where an older member of Fairy Tail is bullied by a group of younger, misbehaving members. This could explore themes of respect and growth. The older member could teach the younger ones a valuable lesson about unity and kindness through their own actions, despite the bullying they endured.
One interesting plot could be a hot dog vendor in the Fairy Tail world who has a magical hot dog that gives special powers to those who eat it. For example, it might give the ability to fly for a short time. Another plot could involve the Fairy Tail guild having a hot dog eating contest as a part of a festival, with hilarious and unexpected outcomes. And perhaps a hot dog could be the key to unlocking a hidden treasure in the Fairy Tail universe, with the characters going on a wild adventure to find it.
Well, one interesting plot could be the dragon slayers teaming up against an ancient and powerful dragon that was thought to be a myth. They might have to discover new magic powers within themselves to stand a chance.
In a love potion fanfiction, there could be a plot where a character creates a love potion to win the heart of their crush. But things go wrong when the potion has side - effects that make the whole guild act crazy in love. The story could then be about the main character trying to reverse the effects and learning a valuable lesson about true love not being forced.
One interesting plot could be that Thor somehow ends up in the Fairy Tail world. He might mistake the Fairy Tail mages for powerful Asgardian-like warriors and try to team up with them. Maybe he could help them in a battle against a really strong dark guild using his thunder powers, which would be a spectacular sight combined with the Fairy Tail magic.
One interesting plot could be Ultear from Fairy Tail ending up in a different magical realm. She could use her time - magic skills to try and find a way back while getting involved in the local politics and magic disputes there. For example, she might help a group of oppressed mages against a tyrannical magic council.
Maybe a story where a character discovers a hidden bloodline within Fairy Tail that is connected to a powerful and ancient magic. This discovery then leads to a new love interest who is also related to this special bloodline. They have to navigate through the guild's politics and the mystery of their blood connection.
Maybe a plot where Kamika gets into some trouble with a dark guild, and Natsu comes to her rescue. This could lead to the development of their relationship as Natsu shows his loyalty and Kamika realizes she can trust him. They then team up to take down the dark guild and protect the town or city they are in.