A/N: Well, this is the end, you guys!
The ending may seem out of character for our Vulcan, but I believe in order to make Kirk laugh, Spock had to be a little out of character.

Look onto part five at my last note for the prompt request, which will help me write my next fic! Thanks for reading!

Kirk felt like his whole world was coming down on him, to be overly and unnecessarily dramatic. He felt as if all of life experiences with joking and being the humorous one in the group was going to waste. He had friends who would laugh at him, yes, but that one, singular soul who did not was completely ruining his morale. For the next couple of days following the Chekov incident, he was mopey and totally out of it. When someone asked him what needed to be done on the bridge, he would stare off into nothing for a few moments before answering with a shake of his head. He had forgotten to go to the mess hall to eat lunch twice, instead sitting in his Captain's chair like he had actual work do to. Which he didn't.

He just didn't get it. He had spent hours searching through Vulcan cultural manuals and anatomy books to find a reasoning behind Spock's refusal to laugh. Behing half human, surely he had the capability, at least. Thus, Spock was just doing it to piss Kirk off. That had to be the reasoning for all of this nonsense. He wanted Kirk to get so mad that he flipped his shit in front of everyone and made a fool out of himself. That asshole!

No. That couldn't have been the reason. Spock had always controlled his emotions so carefully. This time wasn't different. However, one would think that because Kirk had tried so many times, Spock would begin to cave. No such luck. It was killing the Captain on the inside, eating at him like a bout of guilt. It shouldn't have been, but it was. There was so escaping this feeling. He had to do something about it, and it had to be done now.

He found the Vulcan standing near a wall mounted computer, punching in some jargon that made absolutely no sense to the Captain, but was probably cake to him. Jim felt like going up and decking him in the face was a proper response, but he quickly changed his plans, and instead whipped the Commander around to face him. Hands still on both upper arms, he shook him slightly. "What. Is. With. You?" He punctuated each word with a slight shake. Spock looked at him with an arched brow, clearly confused as to what the Captain was on about now. "...I'm not sure I--" he began, but was quickly cut off. "Oh, don't play coy with me, you green blooded hobgoblin! You're trying to piss me off by making my jokes look shitty and embarrassing me in front of my crew, aren't you!?" Spock blinked a couple of times before shaking his head. "I..I must admit that I have no inclination as to what you're upset about, Jim."

Kirk let out a sarcastic laugh and let go of Spock, shaking his head. "Oh, you never do. I've been trying for weeks to get even the slightest chuckle out of you, Spock. There must be something physically wrong with you! Are you going to try and tell me that you're incapable of laughter? Of finding anything at all funny!? What is WRONG with you?" He was in a frenzy over this, his eyes almost bloodshot from all the yelling. He felt beads of sweat forming on his forehead, his body coming undone under all of the built up stress. Anymore of this and it's likely he'd start having flu or cold symptoms.

Spock seemed genuinely concerned for his friend. Something was upsetting the Captain to the highest degree and he wasn't sure if he should believe the reasoning that young man had for it. Really? He was angry because one out of dozens of people didn't laugh at his jokes? This had to be a joke in itself...

Kirk finally let go of Spock, breathing heavily and staring at him with slightly widened eyes. "....I give up, Spock. I give up trying to make you laugh. In fact, I'm never going to try and make you laugh ever again. It's pointless." He slid down the wall next to the computer and sat on the floor, his legs outstretched.

Just then, a cadet with blonde hair and big green eyes, and rather large...assets, walked past the both of them on her way to a control room. Kirk only glanced, his female senses going off as usual. Spock stared.

"....that woman had to have the absolute largest rack I have ever seen."

It wasn't Kirk who had said it. It was Spock. The typically unemotional Vulcan had just made a lewd comment about a girl. Kirk couldn't contain his laughter for a good five minutes or so. He tried multiple times to stop to breathe, but with no avail.

There was hope for them yet.