Ben 10 Multiversal adventures (Ben10X Mega multicrossover)

Prolouge

Ben Tennyson sat at a table in a Mister Smoothies sipping on a smoothie relaxing and enjoying his time while Rook his partner had to go back to his planet to attend to family business. The day had just began and he decided to a smoothie for breakfast  "Today is unusually calm, why do I feel like something is about to change that?" Ben said to himself before he heard a voice behind him. "Well you probably jinxed it now doofus." Gwendolyn Tennyson Ben's cousin said as she walked up. "Hey Gwen long time no see." Ben said as he turned around to face his cousin. "Yeah it has been. So how have you been?" Gwendolyn asked as she sat next to him. "Pretty good Rooks back on his home planet to do some family business... He didn't tell me what though." Ben replied as he took another sip of his smoothie. "Yeah Kevin had something else to do to and he wouldn't tell me what."Gwen said.

Meanwhile at the Bellwood plumber base.

"Alright I think we got everything." Kevin Levin, Ben's enemy turned best friend, said as he dumped a bunch of tools and other things onto a table. "Are you sure we have everything?" Rook, Ben's Alien friend and partner in the plumbers, asked. "I'm pretty sure.... Wait do we have anything to make my car immune to magic?" Kevin asked Rook. "No I do not believe we do." Rook responded. "Also before we begin why did we have to lie to Ben and Gwendolyn?" Rook asked. "I want it to be a surprise when they see i made the car alien proof." Kevin said as he began to gather all of his tools. "Well all right then. So how are we gonna make your car immune to Aliens while also keeping it secret cause Ben only has one day off?" Rook questioned. "Don't worry i'll take care of it." Kevin responded.

Back at Mr. Smoothies.

"So how have things been going at college?" Ben asked as he took another sip of his smoothie. "Pretty good for the most part although keeping an entire magic library clean is a lot of work." Gwen replied. "I can imagine what that would be like especially after Charm Caster came in and blasted through it." Ben said recalling the time he helped fight Charm Caster at Gwen's school. "Well that's not the rough part... the rough part is having to a librarian and lucky girl at the same time while trying to keep it a secret." Gwen said. Suddenly Ben and Gwen heard a sound behind them and then heard a voice. "Well I hope i'm not interrupting anything." the old sounding voice said. When Ben and Gwen turned around they saw a small, grey, frog-like alien in a green outfit.

"Azmuth what are you doing here?" Ben asked confused on why the creator of the omnitrix had come to see him. "I have something to tell you Ben but i'm gonna wait until the others get here." Azmuth responded. "Others... What others?" Gwen asked just then a blinding blue light appeared and when it died down Kevin, Rook, and Ben and Gwen's grandpa Max showed up with a man with a white lab coat who had a pair of goggles hanging around his neck and a pocket watch in his hand this was Professor Paradox a time walker who had helped ben multiple times in the past. "Grandpa, Rook, Kevin what are you guys doing here?" Ben asked as looked at the group. " We do not know The Professor said that Azmuth and Magister Tennyson had something to tell you that we should also know." Rook said as he took a seat at a table next to Ben's. "That's right Benjamin there is information that should've been told to you when you were ten but Azmuth kept putting it off until now." Paradox said as he walked up to Azmuth.

The rest of the group gathered around Azmuth as he prepared to talk. "As all of you know the know the Omnitrix was my greatest creation the item meant to bring the universe closer together." Azmuth said and the other nodded. "But I never told you all about what the Omnitrix actually is..." Azmuth stopped and the others had confused expressions on their faces. "... Do you want to be the one to tell him?" Azmuth asked as he looked up at Ben's Grandpa Max. "Yes I do." Max said as he turned to Ben and started talking. "You see me and Azmuth had met before you found the omnitrix... Years before and in our first meeting he told me about the Omnitrix project... He told his plan was to create a singal being capable of bringing the entire universe together when he told me that he asked me for blood sample he said that with my DNA he could create a being, as Azmuth put it, as selfless as I am and I accepted and around a month later your parents called me telling me that Sandra was pregnant and after that Azmuth came up to me and told me that the Omnitrix was the baby, The Omnitrix WAS you it IS you Ben... We had kept it from you because we were unsure how you would react to hearing it but we had to tell you know because of something that Paradox was about to happen." Max finished and everyone had shocked looks on there faces. 

"Wait so your telling us that Ben was originally a science experiment." Gwen said still trying to process all the information that she just learned. "Yes that was the original plan just to study him and see if anything bad happened with him in case he didn't survive." Azmuth replied. "What do you mean incase he didn't survive'" Kevin asked. "You see Ben was originally the prototype omnitrix the one I was to study incase there were any fatal errors.... but I grew attached to Ben the more I got to know him and eventually saw that he wasn't a science experiment he was an actual person." Azmuth finished as looked at Ben who had his head hanging for a long time until he got turned around and said "I need some air." After he said that he brought up his watch and shifted threw different holograms of different aliens until he came to one then in a flash of green light Ben changed to be a blue and black Velociraptor  like alien with two claws and orb like object on his feet. This was XLR8 Ben's fastest form. After he transformed he sped off.