"Why do you have a swingset?" Donna asked.

The Doctor followed her into the TARDIS's garden, a confused look on his face. "Do I? I don't remember one being in here." But there it was, off to one side.

Donna walked over to it, taking the chain of one of the swings in her hand. She pulled hard on the swing, looking back at the Doctor. "Do you think it's safe?"

"Should be. I don't think the TARDIS would leave it here otherwise."

Donna sat down on the swing, wrapping her hands around the chain. She closed her eyes against the memories that flooded her. She was seven years old again, on the playground with her friends, laughing as they soared higher and higher. When she opened her eyes again she found the Doctor sitting in the swing next to hers, looking at her intently. "Memories," she said. "There was a set just like this near the house when I was a kid."

The Doctor smiled. "I can see you as a little girl, ginger pigtails, skinned knees."

"That was me. Always in trouble for getting my clothes dirty." The chains creaked a little as she swung lightly back and forth, keeping her feet on the ground. She could feel him still looking at her, but didn't look at him.

"Do you ever think about having kids?" he asked.

She chuckled, " 'Course I do. I thought I'd be married with two kids by now. Funny how things work out differently than you planned."

"You're still young, it could still happen for you," he said. "You'd make a great mother."

She shook her head. "Too late now. Anyway, I've made my choice." She looked at him, but he didn't seem to be listening. He stood up and came around in front of her, grasping the chains of the swing to hold her still in front of him, leaning down over her. Her breath caught, because he wasn't looking into her eyes, but at her lips.

"Sometimes choices don't lead where we thought they would." He said, softly.

"What does that mean?" she asked, just as softly.

"I mean, sometimes we don't know what we want." He pushed a strand of her hair behind her ear.

"You're not making sense," she whispered.

His eyes finally met hers, and he seemed to come back to himself, looking a bit guilty. The same look as he had had in the kitchen, after the detox. He straightened, letting go of the swing, and flashed his usual grin. "Want a push?"

He didn't wait for her to answer, but went around behind her, placing his hands on her back. She lifted her feet off the ground, and let him set the swing in motion. She felt her stomach drop at the top of the swing, where gravity seemed to drop away for a second, then felt his hands, reassuring on her back, every time she swung back. She wished he had kissed her. But there was plenty of time for that.