"Ain't no sunshine when she's gone..." Daniel sang softly, smiling at Natalie as she sat beside him.

"It's not warm when she's away... Ain't no sunshine when she's gone, and she's always gone too long, anytime she goes away..."

Closing his eyes, fingers caressing the piano, Daniel swelled with the song. Music had always been a source of comfort for him, proof that orderly chaos could exist.

"That's lovely," Natalie said with a small smile.

Daniel laughed. "I've had a lot of time to pract-"

"Why don't you play for Kate?"

Daniel gaped at her. "What?"

"Why don't you play for Kate sometime?" Natalie repeated evenly. "You said so yourself: You've had a lot of time to practice. I think she would appreciate seeing this side of you, a side that isn't so-"

"Stark-raving mad?" Daniel finished bitterly, already withdrawing into himself.

"A side of you that isn't so gruff and stand-offish, a side of you that doesn't hide behind your diagnosis," Natalie chastised him. "You know Kate doesn't believe you're crazy. And neither do you, somewhere deep down."

"How would you know?"

"Because I've seen the way she looks at you. And I am your 'deep down.'"

Making a face at his conscience, Daniel asked, "What would I even play?"

"Please," Natalie scoffed. "I've heard those songs you sing. I know they're for her."

After only a moment's pause, Daniel turned back to the piano and hovered over the keys.

"For you, there'll be no more crying. For you, the sun will be shining. And I feel that when I'm with you, it's alright, I know it's right..."

"That's beautiful," said a voice.

With a laugh, Daniel said, "Please, Nat, don't sound so surpri-" He stopped short, opening his eyes to see Kate standing in the doorway of his living room, leaning against the frame with an odd expression on her face. It almost seemed like... understanding?

Daniel felt his face redden. She couldn't know that he was singing about her, could she?

But she did. He could see it in her eyes. He braced himself as she slowly stepped into the room, cautiously meeting his gaze. She opened her mouth to speak.

"Can you finish it?" she asked. Daniel was surprised; he hadn't expected this. Clearing his throat, he nodded silently and, still blushing, began to play once again.

"And the songbirds are singing, like they know the score..."

Daniel gave a start; as he began the final line of the verse, Kate joined him, her voice mingling with his a beautiful harmony. He had had no idea she could sing. They sang together,

"And I love you, I love you, I love you, like never before..."