Disclaimer: And not mine still.
AN: I've been inspired to write more Doctor and Donna stuff.
They've left the Ood Sphere behind them and he's taken them into the Vortex. Just drifting for now. He thinks they both need a bit to calm down.
Donna is sitting in the jump seat, feet up on the console and seems to be starring off into nothingness. He thinks she's probably thinking, which is never a good thing.
She'd been so surprised. Second Great and Bountiful Empire, etc. They were always so surprised to find their tiny little planet kept surviving. After everything; after the thousands of ways the Earth could have died before it did. And it survived them all.
"Why don't you get some sleep before our next grand adventure, yeah?" He suggests when she yawns. She stares at him, and he doesn't really think she's seeing him; just reliving the day instead. She nods slightly and totters from the room.
He takes her seat. He showed Rose the end of the world. Martha saw the end of the universe, and still the human race kept going. He wishes there was something else left to show Donna, but he can't cross his own time stream and he knows it. Not for kicks, at least.
He can't show her that when the Earth dies, it's of old age.