Happiness:
–noun
1. The quality or state of being happy.
2. Good fortune; pleasure; contentment; joy.
3. Characterized by a spontaneous or obsessive inclination to use something.
"Describe your happiest moment, KB," Rick sat in his chair, staring wistfully at his muse.
"What?" Kate Beckett looked up from her stack of paperwork in surprise.
"Your happiest memory? What is it?" he replied. Rick moved his elbow to rest on the detective's desk and placed his chin in his hand.
"I…ah…I don't know," Kate finally stuttered out.
"Well mine is…" Castle stared off into space for a second before starting. "Grade two, my teacher and some of the parents took us to the museum. We spent the whole day there looking at the war exhibitions and the dinosaur displays. I still have the photo of my class lying on the floor in the shape of a T-rex. I was the tail."
"You are a tale," Kate sighed. "I wish we could still do those sorts of thing," she laughed, picking up her pen again.
"Who says we can't?" Castle smiled that charming smile of his and grabbed Beckett's arm. "We are going to the museum!"
"No we're not!" Beckett protested, though they both knew she wanted to go. "I have work, Castle!"
"Come on, detective," Rick and Kate both laughed as they jumped into a bright yellow taxi, pulling out into the busy streets.
"I can't believe we're doing this," Kate shook her head with a smile, walking though the antique doors.
Rick looked around the lobby. "Where to?"
The unlikely duo shared a knowing gaze. "Dinosaurs!"