"You ok?" Castle asked Beckett as he approached her, standing by the swing, with a distant look on her face.

Kate reached out and lightly touched the chains on the swing. Smiling, she spoke in a low voice.

"My mom used to take me to the park"

Castle stood, listening to her, waiting for her to continue.

"We would walk around for a bit. Sometimes we would go and feed the ducks by the pond" She paused as a wider smile spread across her tired face. "She loved the swings".

Castle smiled. "Alexis loved them. Said it made her feel like she was flying".

Kate looked up at him with a soft smile as she whispered, "My mom used to say the same thing".

They both stared at each other for a while, lost in their own memories. Kate noticed that Castle looked a bit thinner. The last couple of months had been hard on both of them. He was still as handsome as she remembered, but she also took note of the fact that his usual child-like twinkle in his eyes had faded. It was still there, but only in the far distance of his blue orbs.

Kate broke the contact and looked over at the nearly abandoned old swing. She sat down, her back facing Castle.

She started swinging, almost subconsciously, until she felt a pressure pulling her back.

"What are you doing?" she asked Castle and she craned her neck to look at him.

"When was the last time you were on a swing?" Castle asked, now gently pushing her forward before bringing her to him.

"I-" Kate paused for a second. "A couple of years before my mom died" she finally whispered.

Castle continued to gently sway her back and forth. Kate let him. She let him push her on the swings, letting him take control of the situation. Letting him just be there.

"Having fun?" Castle smirked, bringing his face down to whisper against her ear.

She was giggling.

"A little" Kate grinned wider. "A lot".

Castle's smile grew.

He pushed her for few more minutes before slowing down the pace.

"I broke up with Josh" Kate said in a low voice.

Castle stopped pushing her for a moment. Kate turned around to see his face take over an almost unrecognizable expression. Sadness? Relief?

"I- I'm sorry" Castle said. What else was he supposed to say?

Kate smiled softly at him. "Don't be. It was- inevitable".

They were silent for a moment. Once again, staring at each other, forgetting the world around them.

Kate turned around, a silent invitation for Castle to continue pushing her on the swings.

He did.

No more words were spoken. They were just content to be there, together. Enjoying each other's company.

Kate smiled, hanging on as Castle started pushing her a bit more.

She felt like she was flying.