On a journey cross country, Ben finds a device that becomes a companion and gives companions as well. Ben is 18 during this time.

After his failure costs the lives of hundreds, an 18 year old Ben Tennyson sets out to master the Omnitrix. But when a new foe begins gathering his greatest enemies, Ben must return from his training to stop them before it is too late. With the help of some of his closest allies, plus an old flame, can Ben stop the threat? Or will he fail once more?

Spanner had been wrong, or so it seemed like it. While dealing with a break-up, Ben is assigned an interesting mission, and not long after, another old foe comes to him seeking help. How will he cope with all of this at once?

Imprisoned in her own bag, Charmcaster has been left forgotten, slowly losing her sanity, haunted by illusions of her past actions and failures. When Ben unexpectedly frees her, he aims to rectify their past and offers her a second chance at redemption. Charmcaster must confront her own demons and decide if she truly wants to change and if Ben is the hero that will save her soul.

In another universe, Azmuth had some "different" priorities when crafting his masterpiece. Not that it matters as it ended up in the hands of an oblivious, superhero worshiping kid named Ben Tennyson. And he's going to use it to become the hero he's always dreamed of being. Chaquetrix AU. No Smut. Concept was created by Trix(@TrixTheAlien). (crack fic treated mostly seriously)

Join 10-year-old Ben Tennyson and his cousin Gwen and Grandpa Max as they embark on a cross-country road trip that gets wild when Ben discovers a strange device that turns him into 10 different alien species with amazing powers. Ben will learn how to become a true hero with his new powers as he faces off against all sorts of evil from Earth or space, itself.

The consequences of past mistakes, a lifechanging summer and one adventure too much set Ben and Gwen on a collision course with each other and so much more. (Starts and begins to diverge from just before the end of Secret of the Omnitrix, only the OS is relevant as far as canon goes)

I never would have believed you if you had told me that I would be embedded in a watch from a cartoon that allows the user to transform into any kind of alien. Well, might as well see if I can make a difference and prevent the ten year old that is wearing me not to make the same stupid mistakes he made in canon. Or maybe I'll just become even crazier than he is. Let's find out.

Ben Tennyson has been Isekaied. He has woken in a forest on another world of magic monsters and Fantasy, with an evil order planning to kill all that aren't human. Meaning time to hero up.

Ever since Gwen got that watch, Ben was always overshadowed. But maybe, now things will be different. He'll show everyone that he is a true hero. This is the story of Ben Tennyson, not just a sorcerer but more.

Years after the defeat of Maltruant, life as a Plumber got better for Ben. But after a devastating fight, he must be better as a person. With his friends and relationships, he will navigate the universe to save it from the tentacles of Vilgax.

Ally is a normal 13 year old girl, until a strange device came down to earth; merged with her and allowed her to battle evil using a variety of different alien species!

Remake of the first Cold Winter's Night story. In this version, Ben has to tangle with the Omnitrix, super hero antics, and his upcoming young adult life. But what happens when he's reunited with his cousin, Gwen, and romantic feelings eventually begin to blossom between the two? Rated M for adult themes, violent situations and action.

What started out as the worst summer ever turned into a strange adventure when a pod shows up carrying a weird girl and an even weirder watch. Now with the Omnitrix stuck to Ben's wrist and being hunted by Vilgax and his lethal 'children', this was definitely going to be an interesting summer.

With each branch representing a timeline, it gets to the point where things become radically different yet the same. A world where Alex Mathers, a teenage trouble maker gains the Omnitrix, willing to take anything and anyone head on.

A collection of random scenarios containing Gwevin, each less than 1000 words.

Vanessa Cunningham was expecting to go on a normal summer vacation with her childhood best friend and his family, but that all changed when an alien space pod crashes down on their campsite while carrying a pair of strange devices called 'The Biomnitrix'. Now Ben and Vanessa go on epic adventures of fighting supervillains, monsters, sorcerers, aliens, and all sorts of other things.

Ben and Kai have a very frank conversation outside of a Mr Smoothys in New Mexico.

There's something about being a superhero's son that's so fascinating, even more so when you yourself inherit the mantel.

A retelling of the Ben 10 series, with several changes throughout the story, including: mild cursing, some violence, skipped and altered episodes, etc. At the age of 10, Benjamin Kirby Tennyson discovers an alien device called the Omnitrix while exploring the forest. This incredible artifact grants him the ability to transform into different alien species, each with unique powers

It all began with the screams, followed by the relentless nightmares. The fear in his eyes was truly heartbreaking as he transformed into something he wasn't. It was clear that the goofball I once knew was slowly fading, turning into the man we saw in that bleak future. Future Me did nothing but I couldn't just stand there and watch my dear friend, My Doofus lose himself.(Bwen fic)

Ben and Gwen are in a secret relationship hiding it from grandpa Max as the two cousins been in a sexual affair together for months. How long will their relationship last so they won't get caught?

(ONE-SHOT) What would happen if Ben had the extra aliens he unlocked throughout the original series instead of the initial ten?

This is a story about Gwen tapping into witchcraft. It explores a magic system that treats 'magic' as a measurable physical thing that you can use, lose (misplace), or sell. Gwen training to measure up to Ben, discovering a special ability and its associated risks. I wrote it years ago, so before posting I'll edit each chapter. Hope you enjoy it!

Gwendolyn's parents died when she was only nine years old. As the only adult figures left in her life, Ben's parents adopt her. He has never seen his cousin like this, so utterly 'quiet'. The doctor determines that she might never be able to speak again. (AU – Different First Meeting) Cover Art by me.