Ultimatealien Stories

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

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...

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 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...

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...

The story of a young man born quirkless in a world of heroes, who for all his life was told he could never becone a pro hero... but when he was ten years old he found so...

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...

After defeating the Dagon and saving the world, Ben, Kevin and Gwen each goes their sperate paths. Ben remained in Bellwood to fight crimes while his cousin Gwen went of...

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...

[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...

Ben wasn't the only one who received a mysterious alien watch. A boy by the name Y/n L/n also had one we he found it while taking a late night walk in his hometown Bellw...

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...

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 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...

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...

(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...

Y/N L/N the World Famous Superhero who can transform into different Aliens is now transferring to Japan as the only male student in IS Academy. What will happen when he...

"Never thought my life was going to get so strange, but one summer road trip with my Best Friend, His Cousin, and His Grandpa changed my life forever either good or...