Ultimatealien Stories

Jaune Arc lost everything. Pyrrha his partner betrayed him, his family disowned him, most of his friends left him in the dust. Only after he disappears, do his former fr...

Everyone's heard of the story and legend of Ben Tennyson and on how he saved the universe countless of times. But what if there was another? Another Hero. What if there...

Ben is driving a while after the final battle in Ultimate Alien and ends up in a portal to another world. Ben doesn't get the new Omnitrix due to Azimuth not finishing i...

set 4 years after Gwen 10 classic. since the ending of Gwen 10 classic gwen has taken off the omnitrix, and has returned to a normal life. However when her grandpa max f...

ITS HERO TIME.. or is it Deja Vu Time? After a tussle with the mysterious contestant of the Radiant War known as Shi Jian, aka the Time Traveler, Ben starts to suddenly...

After defeating Vilgax the Conquerer, Izuku Midoriya continues on his journey to master the secrets of the Omnitrix and become the next No.1 hero in the world. He'll hav...

After the aftermath of his last great battle- he had finally gotten rid of Vilgax, his greatest ever enemy for good, but at what cost? Since that day, Ben 10, the infamo...

A book of various one shots and scenarios involving Charmcaster from Ben 10 and the male reader.

Ben Tennyson is in a world filled with superheros and it's up to him to save the day. Watch as he encounters psychic sisters, kung fu masters, cyborgs, and villains you...

(A Loud house x Ben 10 Ultimate Alien crossover) Ben fights an unknown being who then causes a DNA rupture in the Ultimatrix, Sending a massive wave to transform half of...

Earth.. Water... Fire... Air... My grandmother used to tell me the tales of a long lost civilization from long ago, from before even the First Avatar, that existed witho...

A year after rescuing his parents from the clutches of Amanda Waller and The Suicide Squad, Ben Tennyson once again finds himself running back to where he was running aw...

After a long first year of classes at UA, All Might has invited Deku and Uraraka to an early access event of the annual hero expo on I-Island where the latest in hero ge...

(Takes place in the Tv series) Whats better then a kid with the powers of a Spider? A kid with a watch that can transform into aliens that helps the kid with spider powe...

[Ben 10 x Marvel x Nakano Quintuplets OC Crossover!] You may know Ben Tennyson aka Ben 10, right? The Omni Heroes of the multiverse, right? But what if Ben found his suc...

Enjoy

RJ Tennyson is the younger twin of Ben Tennyson and is the only cousin Gwen likes but that doesn't mean he doesn't get along with ben in fact bens really over protective...

Ben Tennyson, after defeating the Daigon powered Vilgax, had been split in two. The second Ben had been sent to another universe, now having become part of Team Dai Gurr...

After Ben Tennyson loses everything precious to him to Vilgax. Ben ends up being sent to the Totally Spies Universe. Where he ends up joining W.O.O.H.P. along with Sam...

[Male Reader] A teenager finds a watch that allows him to transform into powerful beings. Now, he finds himself in the midst of a group of superpowered teenagers fightin...