A collection of mature oneshots for the Ben 10 series, rated M for a reason, read at your own risk

It started when an alien device did what it did. And now Ben Tennyson can transform into any alien species he chooses. With these new powers, Ben becomes the hero, Ultra 10. Can Ben protect the world from threats from outer space? Or is the earth be destroyed by alien invaders? Note: Ben and Gwen ARE NOT cousins in this story

He was not fully human and such. She was trying to corrupt him. Rated T for violence. Doesn't entirely follow reboot.

We take a look into Ben and Gwen's relationship after there first summer read trip together. Bwen fanfic don't like it don't read.

They never see him anymore. Never call, never visit. Not special enough for his family's lofty universe saving careers, he supposed. He hadn't been planning on visiting, but he was going to take advantage of the opportunity before him. Ken Tennyson has a secret now, one he won't let his family discover. Or Ken has a voice in his head and is slowly spiraling into insanity.

Years after Vilgax and the other villains Ben faced were defeated and the universe is saved, Ben's grandson Akiren Romeo Lownethal Tennyson has recently gained a hold of a Supermatrix from his grandpa as a gift for entering DJW Academy. However, he also had to deal with school and other daily activities. Meanwhile, aliens like Megatraxx are threatening earth. Can Aki balance out hi

"Su vida había cambiado demasiado. Si le hubiesen dicho hace unos años que su mayor preocupación sería la prima de Ben Tennyson, se hubiese echado a reír. ¿Dónde estaba aquel chico que desaparecía de la nada y que no tenía que darle explicaciones a nadie? Pues echando de menos a su novia, ni más ni menos" Gwevin

After their secret is revealed, Ben and Jen are moving on to new adventures with their new Ultimatrixes providing tons of new possibilities. Certainly going to be a help with the many dangerous trials awaiting for them.

Being an Anodite has become part of Ben's life about as much as being a hero has been. But he knows there's more for him to learn. And has to do it all while dealing with brand new threats and a fame that's more of a hinderance than a help. The only thing to be done is to make the most of it. Sequel to Another Anodite. Ben/Gwen pairing

It started when an alien device did what it did and stuck itself upon a wrist with secrets that it hid. But this isn't the story of some ordinary kid. Whose wrist does the alien device find itself upon? How will the device allow itself to be used? And what will become of it and its user? (A Ben 10 CYOA; Cross-Posted On AO3)

This is ideas for the sequel of Ben 10 Omniverse

This is my first ever attempt at Ben 10 fanfiction. I had this idea for a while and thought that i'd just put it out there and see what people think, so any mistakes you notice or advice for future story' will also be much appreciated. This story is about a 17 year old Ben Tennyson getting a new Omnitrix, on his journey he learns more about himself and faces a powerful new villain

A new threat has emerged in the galaxy, a new powerful alien warlord has shown up after destroying numerous planets and wiping races from existence. It's up to Ben to stop them before more innocent life is taken but he ends up finding himself taken prisoner and enslaved by the warlord. Now Ben needs to fight to get free before the warlord breaks him in more ways then one.

Professor Paradox, a popular character involved with the stories of one of Earth's pioneering heroes in space. But few know some of his own adventures. So here we see the man who walks through time and space to help make it better in many ways. He is enigmatic and optimistic, trolling everyone and everything to a ludicrous degree, with occasional guest starring from Hugo.

Just as young Ben Tennyson felt like he was about to have a boring summer vacation with his grandpa and cousin Gwen, a mysterious alien device fell into his life! Now, armed with the power of 10 aliens at his disposal, he and his family are ready to fight off evil from Earth and space while traveling the country and enjoying their vacation. It's hero time! Updates on Wednesday.

There are an infinite number of universes in the vast omniverse, each one more different then the last. This is a story about one universe where the heroic Lucky Girl faces off against her greatest foe, the evil mage Charmcaster

Polly Kingston Pocket is a clever and curious inventor who's always looking for fun adventures. She inherits a magical locket called the Pocket Locket from her grandmother, giving her the ability to shrink to 4 inches tall and before Polly turns into the new locket bearer, she found a mysterious alien watch called the Omnitrix

In this timeline, the Omnitrix enters the life of an average man looking to survive in the world Can he become the hero that he was meant to be?

When a viral outbreak spreads across the planet, turning humans and aliens into regenerating zombies, it is up to Ben and his friends to fight through the horde of zombies in order to find a cure to end thus undead nightmare

Five years after Ben took off the Omnitrix, he begins putting it on again after he found that his grandpa is missing and the secret Highbreed Invasion. Once the Alien Force is formed, they will defend the Earth's peace from the Higbreed and other threats. Ben 10 belongs to Cartoon Network and Man of Action. The cover belongs to DeviantArt user TheHawkDown.

The conflict left the world and it's inhabitants broken. The group splits onto their own path. Ben is left trying to hold himself together; he finds solace in Hope, who guides him away from the ledge. With her experience of overcoming prior trauma, will she be able to bring back the ones she considered family? (A short fic following Ben 10: Defeat of An Empire.)

Lad reborn in an alternate version of Ben Tennyson, in which the summer journey begins when Ben and Gwen are 15. The main character knows the canon very well and will use his knowledge. - I don't know English at all, so I use Google Translate for translation. I hope it won't be that bad - My patreon - /zeckyll11

Ben tried, he tried so hard to stop the Universe from being destroyed. he even had to use other powers of his most powerful alien. It proved to not be enough to stop the device that could bring an end to the universe. Now he has to find his way back to the world he knows or let things be what he knows now. As they say, the more things stay the same, the more things change.

It started with an alien device that did what it did. It stuck itself upon his wrist with secrets that it hid. Now he's got super powers, he's no ordinary kid. He's Ben 10! My retelling of the Ben 10 series, with various changes throughout the story, including: mild cursing, some mild violence, skipped and altered episodes, etc.

His car used to be his number one priority. Not anymore.