Been looking for months for this fic I read. It's bugging me I can't find it. So, please help if you can. Here we go: Kirk and Spock don't exactly like each other, and on a mission something happens and they are in pain when they don't touch and then must have sex, which will last a few weeks and it fades away in the story. Spock/Uhura in the beginning. Uhura agrees to it, though pissed, but implements a no kissing rule due to intimacy. Not a Pon Farr fic. I'm hoping you or someone can find it.
Hello there, friend! As soon as I read your ask, it rang a bell for me. The circumstances aren’t exactly as you described, but after searching around thoroughly (and I promise I did, I googled extensively and checked the fic finder community on LJ, to see if there was another fic like it), I’m positive it must be this AOS* fic:
Eye of the Storm by littlebirdtold
Post-ST XI. Three months into the five-year mission, Spock is still with Uhura, and Spock and Jim are at each other's throats when the Enterprise is sent to investigate another lightning storm in space. They encounter a Vulcan ship, commanded by Captain Spock and his very illogical First Officer Jim Kirk who, to everyone's shock, are happily married and in love with each other. The other Kirk disapproves of the fact that his counterpart is letting Uhura have what should be 'rightfully his' and is determined to 'set things right,' but the problem is, no one appreciates his meddling.
If it’s not this fic, then I’m sorry, I hope you find it! But I’m sure it must be? It matches so well.
*We’re a TOS rec blog, and will continue to only rec TOS fics, but if the fic someone comes searching for is AOS, then I’ll happily find it for them if I can! I read TOS and AOS (though AOS to a lesser extent) and I know the frustration of remembering a fic so clearly, but not being able to FIND it. Just wanted to clarify that!