Yours Again
Optimus flew down the Well. He saw the faint glow of a revived Primus, and the AllSpark pinged madly for its creator. The Matrix also greeted Primus, sending out a band of light to guide Optimus, even though the Well only led one place and it was near impossible to lose his way. He felt his spark ache, though, as he was leaving his family behind. Perhaps...perhaps he would see them again. It would be a welcome relief to see his family again, and he promised he would embrace them as soon as he could.
Primus drew nearer, and Optimus gave a shout of delight. He was returning to the mech he ran away from all those years ago to save himself from the Decepticons. "I am sorry you lost me," Optimus cried out. "Or did I lose you?"
Either way, he was coming back and he would be with Primus again.
Primus pulsed a greeting. The AllSpark wailed and the Matrix went mad, flashing memories of its long journey to the Core. He almost thought he heard Primus chuckle in his audio, and he imagined the bright bands of light emerging from Primus as arms to embrace him, to welcome him back into the light of Primus.
He was overwhelmed, and his servos shook. He kept flying, even though he wanted to take a moment and just marvel at Primus. The last time he saw the Creator was when he was sick and dying, leaking purple and rasping through gasps.
Today, however, Primus was alert and focused, greating Optimus with a voice that threatened to shatter his audios.
WELCOME BACK, MY PRIME.
He wailed and flew straight into the blinding blue light and he felt the AllSpark in his spark separate into a thousand individual lights, shooting up through the Well in a spray of celebration. He wished he could see it...
WELCOME!
The shout this time was from twelve gathered forms and they dropped to one knee. Twelve pairs of blue optics studied him. The Matrix in his chest separated and merged with Primus, who gave a longing sigh.
"He has missed it," one of the beings said and it rose, running at him and hugging him tight. "Welcome back...brother."
Optimus' arms clamped hard around this being he only kind of remembered, and he smiled into its shoulder as the hug became one for a group. Arms of all shapes and sizes wrapped around them and voices, high and low and rough and smooth, were in his audios, talking and laughing and sighing.
Names for faces came to him and he threw his arms out, wrapping as many bodies of his siblings as he could in his embrace.
"TILL ALL ARE ONE!"
"ALL ARE ONE," the Twelve returned.