"It's usually your line," she agreed, giving him a smile of her own. Finally, at least, it was genuine. "But you're on my turf now. For once, I'm the one who knows what they're doing." Which never got old. Sometimes she looked in the mirror and didn't even recognize herself. She wasn't the simple shop girl any longer. She was a woman now. A successful business woman, running her own non-profit. A student who was doing quite well and would soon have a degree in business. A skilled Hunter who had taken out her share of demons, and nearly been taken out by a few. She'd grown up so much in the last several years and it had a great deal to do with him.
So she gave his hand and guided him down the halls of the TARDIS. Now and then she would rest her free hand against the sentient machine's walls, mentally asking the beautiful machine to guide her to the room. It was well hidden and even she didn't know every inch of the TARDIS, not the way the man beside her did. But her loyal friend didn't pull her occasional trick of moving rooms and shifting hallways and finally, Rose found herself in front of the door.
"I don't even know if you knew she had this feature. I've found one of the other ones, too, but... This is my favorite." She eased the door open on the archived console room, the one Ten had found so long ago. The one where he'd haphazardly and awkwardly asked her to marry him. Her stomach dropped at the thought, but she turned her focus to her friend to watch his face as he took in the sight.
She loved the TARDIS as she was now. Eleven's TARDIS, all steampunk and gadgets and gears and glass flooring. But this... This one would always be home to her. With its glowing green center and its jumpseat and the wire grating on the floors.
It was theirs. And she was more happy than she could say to be able to share it with him.