Fireflies – Owl City
"You're doing it WRONG." Leonard huffed, with all the exasperation that he could summon in his eight year old body. Jim, sitting on the ground, rolled his eyes, but handed the toy communicator over to the other boy.
"You're bossy." He complained, "This is meant to be FUN."
"It would be more fun if it worked. Logically." Spock contributed, from where he was perched on the tree stump nearby, "How can you have fun with an incomplete and unassembled toy?"
"Hey guys!" Uhura chirped, running over from the house, dark hair streaming out behind her, and dark eyes shining, "What're you doing?"
"Nyota." Spock said, sitting up even straighter and even smiling a tiny bit, "We are..."
"Sorry," Jim interrupted, rudely in Leonard's opinion, "No girls allowed."
Scotty, who was looking after them, just sighed when Jim staggered inside with a bloody nose, while an innocent looking Nyota stood nearby.
"Girls don't hit like that..." Jim grumbled later on that night, sitting on Leonard's bed. "She cheated."
"You tried to stop her from playin' with us. I woulda hit you too."
"No you wouldn't. You're always stopping me from getting hurt."
Leonard sighed, well that was true enough.
"Hey Leo?"
"Yeah Jim?"
"We're going to be best friends forever right?"
"You got that right. Ain't anyone else I would trust lookin' after you."
Jim nodded, as though this was exactly what he had hoped for and expected. And so when he fell asleep on Leonard's bed, several hours later, Leonard didn't kick him off. Instead he just wrapped his arms around him protectively and fell asleep too.