They were separated once again
But came a portal which became the only link to their worlds
Running fast as fast as they can
But neither have a plan
To catch up to the portal that exploded in front of their faces
Losing the chance to see the other forever
But suddenly they saw each other never to sever
They looked around to see what's never been seen before
The beings that have appeared were not human
But appeared in a world that used to be normal
Now it's more than normal with humans and nonhumans living in one world
Their worlds have been merged
As they stared into each other's eyes
They were together at last
And it's quite worth it
Author's Note: I must admit that the final episode of Star vs. the Forces of Evil is quite interesting, especially with its ending where Earth and Mewni merged.