Five years.
Five years ago on this very day, their love had made a miracle and brought the wandering people of Earth home at long last.
In all that time, they had not faltered. There had been stumbles, of course. Fights, arguments, differences. All were faced and resolved, however, no matter what shape or size they came in.
And then, one day, it happened.
They did not expect it to happen. No one did. No one could have, because by all rights, it shouldn't have. It had never happened before. Nothing like it had EVER happened before.
Their heads had pressed together. THAT had happened before, many times. That warm, loving arc of electricity flowed between them. That had happened before too. But as that light...that warmth...continued to pass between them...as he felt her power flow inside of him and she his, something...sparked. They both saw it. A vision...an image...
They showed it to the Captain through the Memory Module. He showed it to the Scientists. And the best they could come up with was an answer that didn't make a whole lot of sense, but was ultimately the only conclusion they could reach: it was a design, a blueprint of sorts created by an exchange of data between the two robots.
The pair did not know quite what to feel about that. This was something they had created, together...something that could be brought out into the world, something that they would have to care for. Were they ready for that? Did they want that?
He thought about it as he wheeled around the city, taking trash and crushing it into cubes for ease of recycling. She thought about it as she patrolled the borders, keeping an eye out for signs of danger. They both thought about it as they performed their daily duties. For days and nights, they thought and thought and thought, and all their thoughts kept coming back to that image.
It was so small...so frail. An egg-like oval, nestled between two treadwheels...on either side, fin-like arms that could move along thin paths that looped through the sides...and binocular eyes with shimmering LED pupils. That was the part they thought about most...looking into those eyes. What would they see inside of them? Would they see anything?
Finally, one night, when they were readying themselves for sleep, she took his hand in hers and held it tight. She placed her head upon his once again, and gave a soft crackle to let him know: she was ready. She wanted this...to see their creation become real. And knowing that, he was ready too.
The design was printed from the module, and the scientists set about working it into a functional blueprint. It took time. Months. All the while, the pair waited anxiously. And then, at last...she entered into their lives. Wheeling Excavations Nano-Droid. WEN-D. They held her in their arms, and showed her their home, and looked into her eyes and saw something wonderful. Curiosity, confusion...love. They knew then what was needed of them...because now they knew for sure what it was they had created.
WALL-E and EVE had a child.