The Most Popular Adult Fanfiction (2024 Edition)

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Adult fanfiction is popular with readers around the world. 

For just about any movie, TV show, or book, there is most likely fanfiction to be found. 

Some authors write fanfiction that is suitable for children or teens, but others venture into more mature content. 

Adult fanfiction takes the characters we know and love and places them into new and different scenarios that we wouldn’t see them in typically. 

These stories have become so popular because it is a way to consume more content of beloved characters, as well as get a taste of what might happen if they were allowed to act as real adults do. 

In each of the stories below, there is a large amount of adult content. 

Though most of this content revolves around consensual sex, there is also plenty of violence, rape, and abuse, so read these stories at your own risk. 

That said, if you are looking for some of the most popular adult fanfiction stories, check out the ones below. 

1. The Contract

Rabastan Lestrange Fanart auto-generated by Artificial Intelligence from a text prompt

In this adult fanfiction, we enter the world of Harry Potter where Harry faces the reality of an arranged marriage.

Rather, it’s more of an alternate universe that takes characters and inspiration from Harry’s world. 

In this story, we get a lot of content about Harry, of course, as well as many members of the Black family. 

The author has also incorporated many of their own original characters into this fascinating and unique story. 

We also get glimpses of many other creatures from the Wizarding World including goblins, house elves, and dragons. 

This adult fanfiction has over one million hits, making it one of the more popular stories in this genre by a long shot. 

The author began this story in 2019, and they are still updating it regularly. 

It is safe to say that this story will have you captivated from beginning to its eventual end. 

2. Harry Potter and the Shadowed Light 

Evil Dumbledore Fanart

This next adult fanfiction is another that takes place in the Harry Potter universe. 

It involves Harry, as well as many of the Black and Malloy family members. 

Don’t worry, though, there are many other beloved characters that make appearances as well. 

In this story, we get a good amount of Dumbledore content, but in this alternate universe, he is not who we know from the books or films. 

Dumbledore is an evil character in this story. 

Harry is also a much darker character, and he spends the entirety of this story seeking revenge on those who have wronged him. 

It is quite a wild ride, full of many twists and turns. 

You won’t be able to anticipate the author’s next move in this story. 

Though this story does not have as many hits as the previous one, it is still a massively popular one, and with very good reason. 

3. Choices

James Potter Fanart

In this adult fanfiction, we go back to the world of Harry Potter. 

Something about the Harry Potter universe really inspires authors to write adult fanfictions. 

This story is a different take on Harry’s world, as it features his father and his buddies at Hogwarts, the Marauders. 

There are also features from many other characters, including the Longbottoms, the Malfoys, and more. 

James is the main character of this unique story, and it is a fun take on the world that we all know and love. 

There is plenty of romance in this story, as well as a lot of sweet moments of friendship. 

The author is able to transport the reader to this magical world and remain true to what we know of it, while also giving it a personal touch. 

This story is full of tension, heartache, and sadness, but there is just as much love and fun as well. 

It is not one to miss if you are a fan of the Marauders. 

4. Embracing His True Self

Evil Harry Potter fanart

If you thought we were done with adult fanfictions that take place in the world of Harry Potter, you thought wrong. 

There are plenty of these stories to go around. 

This story goes back to Harry as the main focus

In this story, we see Harry embrace Voldemort and everything he stands for. 

Harry is tired of being the good guy, and he wants to be true to who he really thinks he is. 

If you are looking for drama, this is a great place to start. 

This is one of those stories that goes a bit beyond typical adult content. 

It includes some very sensitive subjects that the author handles with respect, but it is definitely not suitable for some readers. 

Be sure to take a look at the content warnings before diving into this one. 

This story was first published in 2014 and the author is still updating it regularly, so get ready for endless amounts of twists and turns, drama, and adventures. 

5. The Student Prince

Modern Merlin fanart

Next up, we are going to take a break from the Harry Potter world and enter a new one. 

This adult fanfiction takes place in the universe of Merlin

In this alternate-universe story, Merlin and all of his pals are sent to modern-day university, and this is where the story unfolds. 

Everything that you can expect from a bunch of magical beings as young adults away at university is included in this story. 

It is a lot of fun to read, even if you are not a fan of the show. 

It offers a lot of humorous moments, as well as moments that will break your heart. 

The author is a fantastic writer, and this story is a great one. 

The dialogue is witty and fun, and the storyline is just as engaging. 

6. The Heir to the House of Prince

Hermione fanart

We are headed back to the world of Harry Potter for this next adult fanfiction. 

This story introduces some original characters that the author has created. 

They add a lot of depth and fun to the story, and they are just as dynamic and interesting as the characters who already existed in the world. 

This story contains a large amount of violence, but it is otherwise a really pleasant story to read. 

All of our favorite main characters from the series make appearances in this story, including Harry, Ron, and Hermione. 

The majority of the Weasley family is in this story, as are Draco Malloy and his cronies. 

In this story, Harry is discovering things about himself that he never knew possible. 

He must make some hard decisions, and they may not always be the right ones. 

Harry becomes a very morally grey character in this story, which gives him a new and interesting dynamic. 

7. The Ladybugs and the Bees

Miraculous Ladybug Fanart

We are venturing into a new universe with this story, and that is the world of Miraculous: Tales of Ladybug and Cat Noir. 

If you are unfamiliar with this show, it is about two teenagers who transform into superheroes to protect Paris from villains. 

The author of this adult fanfiction has given us a great coming-of-age story that is lighthearted and a lot of fun. 

The teenagers in this story get into trouble doing a lot of typical teenager things.

It is so well written and fun to read that you don’t even need to be familiar with the show to enjoy it. 

The author gives these characters life and personality that jumps right off the page. 

If you are looking to dive into some harmless and fun adult fanfiction, this would be a great place to start. 

8. Consuming Shadows

Lily Potter Fanart

This next adult fanfiction finds us back in the world of Harry Potter. 

There are a number of original characters in this story, but many of our favorites from the series are here, as well. 

In this alternate universe, we see what may have happened if Lily Potter was able to escape Voldemort on the night that he came to kill Harry. 

Lily and Harry travel to France, where they spend many years together. 

Lily trains Harry to come back to Britain and fight Voldemort, which presents many dark challenges. 

If the plot of this story itself doesn’t draw you in, then you should know that we get to see a much different side of many of the characters we know and love. 

The author does a great job of giving them a lot of unique personalities and traits that completely change who they are, while at the same time keeping their characterization quite true to what we know. 

There is a lot of manipulation and abuse in this story that is sometimes hard to read, but it just makes it all the more entertaining. 

9. The Train to Nowhere

Voldemort fanart

We are once again visiting the world of Harry Potter with this adult fanficion, but this one is quite different than many of the others. 

This story uses elements of horror and fear alongside a fascinating plot to give us a unique and captivating story. 

In this alternate universe, Voldemort was victorious in the first wizarding war and we get to see how this victory affects the entire world. 

Racism and inequality is the norm in this world, and no one is doing anything to change it, at least for now. 

If you think this sounds a bit dark and heavy, you are absolutely right. 

Don’t worry though, there are plenty of moments of humor and love within the pages of this story. 

Without spoiling too much, this story also has a happy ending, so that is something to look forward to throughout all of the hardships. 

10. Let the Dark In

Hermione fanfiction fanart

Our final adult fanfiction to look at is a rather new story, but it has gained popularity quite quickly. 

This story once again takes place in the world of Harry Potter, but it features a few different characters that we have not seen much of yet. 

Hermione Granger and Draco Malfoy are the main focus of this story, and fans of this pairing will not want to miss this one. 

This story exists in a world in which Voldemort does not exist. 

That does not mean that there are no problems, however.

There is just as much drama, tension, and action as any other story, it just comes in different forms. 

Draco is a student at Durmstrang instead of Hogwarts, and the Triwizard Tournament brings him to the attention of Hermione. 

Though this story is new, it is already quite lengthy, so it takes a bit of commitment to work through, but it is absolutely worth the effort. 

Adult Fanfiction: Conclusion

I hope this article has helped you find some popular adult fanfics to read!

And if you have questions about this topic, feel free to leave a message in the comments below!

Lastly, if you want to read more about fanfiction on this blog, check out:

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