"A Quintesson." Optimus repeats gravely. "I suppose it was too much to hope that the Quintessons would cease to be a problem after defeating them in our own timeline."

It would be easy to fall into a long conversation about this, to talk on and on about the grave things that make up our world, but, for once, Optimus wants to put that aside for now.

"Perhaps we can discuss this later." Optimus says, pulling his husband close so that he can gently press his forehead to his. "I missed you. Even when I returned to a timeline where I did not remember what happened here, I missed you. I hope we are not parted again."