This is my first Star Trek fic, so please be kind! Changing some things, Bones goes to the radiation place in time to see Spock cry.

Kirk watched Spock as the Vulcan left.

"Was it just me, or did he smile?" Kirk asked and Bones smiled.

"Wouldn't be surprised if he did."

Kirk glanced at his friend in surprise.

"Bones? Is there something you're not telling me?"

McCoy hesitated.

"Ah hell, you should know the whole truth."

"Which is?" Kirk pressed.

"Spock kind of went off the deep end when you died."

Kirk arched his eyebrows in shock.

"Spock? The emotionless and logical one? You've got to be kidding me."

Bones shook his head.

"We were wrong, about him not feeling things, Jim. Way wrong. I..." He paused. "Being there, where you died...seeing his rage afterwards..."

"Rage?" Kirk felt even more stunned, and overwhelmed with a new sense of bond towards that Vulcan.

"Oh yes, more rage than I've ever seen anyone have before. I've never seen anyone so...ruthless and angry. He scared me."

Kirk let that settle.

"I just have a hard time picturing him like that."

"He would have killed Khan if we hadn't told him Khan could save you."

"But he's not a fighter-"

"Oh he was this time, he went on a revenge hunt."

That was when Kirk scoffed and rolled his eyes.

"Vulcan's DON'T go on revenge hunts, Bones. It's illogical."

"Spock wasn't logical at that moment. When you died he responded to his human half. All he felt was grief,mixed in with a type of rage I can't even describe. He just wanted revenge. If you had remained dead he would have killed Khan, that is if I hadn't gotten to him first." McCoy smiled at that but Kirk just laid there, stunned with that news.

"I couldn't imagine watching Spock feel those things, seeing him cry..."

Bones nodded.

"It was difficult to watch. Not as difficult as seeing your dead body, of course...but it was difficult. I respect him more, now I see the type of emotions he has to keep locked away. No wonder he doesn't like to feel, he can't control himself when he does."

Kirk laid there, deep in thought.

The next time he saw Spock it was in his office.

Spock stood in front of his desk, waiting for orders.

"I want to say something to you, before we start," said Kirk quietly. Spock looked perplexed. "I've said it before, but I want to say it again." Kirk looked at his best friend with earnest eyes. "Thank you."

Spock frowned.

"You are welcome," he said. Kirk swallowed.

"All right, let's got on with it."

And as he stood next to his first officer he realized he couldn't get a better friend, or first officer, then Commander Spock.

Short, but I hope it wasn't horrible!