Alien hero of echo creek (Star vs the forces of evil x Male antitrix reader)

You were a cousin of Ben and you had many adventures with him. But when you and your family move to a new town and school, you meet Marco, who Is a friend of star butterfly, a princess and from another dimension. What they don't know yet, is that you have a watch known as the antitrix, capable of turning the user into different aliens. Now you, star and Marco go on a adventure of a life time as you take on bad guys and save the world from the forces of evil. Disney channel and Disney xd characters belong to Disney, cartoon network characters belong to cartoon network, marvel characters belong to marvel, DC characters belong to DC, Nickelodeon characters belong to Nickelodeon, rwby characters belong to rooster teeth, fairy tail belongs to funimation, scooby doo belongs to Warner brothers, as you belong to yourself. I am now making this into a multi crossover story.