Best McSpirk Polyamory Fanfics

by ladydragyn

The Falutero created by Leonard, M'Benga and their team is a medical miracle bringing hope to the hopeless. It is probably the most important invention to the galaxy. Too bad some people want it and its creators destroyed.

by thymevamp

It's rare for Jim, Spock, and McCoy to get to go on a vacation together, when it does happen the three know how to take full advantage of it. By actually relaxing! There's nothing like bathing in each other's company.

by killingthetime

Pon farr hits Spock hard and sudden.Jim promised he would be there—no matter how rough, how violent, how much it hurt.He keeps that promise.Every thrust, every bruise, every drop of blood is proof that Spock is alive and still his. ***Violence, sex and redemption***

by chuubit

because the internet is kinda going to shit and i need somewhere to store thesemight add specfic pairing tags/general tags in the chapter notes

by daytimedrinking (josukesfever)

"Doctor," Spock spoke, his voice carefully steady, and McCoy was vindicated at the thought that Spock was just as affected by the situation as he was, "if the captain has not been poisoned, what is causing him to act in such a manner?" "Elevated heart rate and body temperature, rapid breathing, exce

by ladypolyester

After being captured on a hostile planet, Dr. Leonard McCoy finds himself alone in a cold, damp cell, battling pain, hypothermia, and his own chaotic thoughts. As his mind wanders between memories of his life in Georgia and his intense first ten months aboard the Enterprise, he realizes how much he

by PoorLeno89

Spock could sense the Captain's worry radiating from somewhere to his left and several decks above him, as well as the doctor’s, only a room away, which was excessively potent from the closer proximity (and due to McCoy's natural caring tendencies). Try as he did to rationalize it, to tell himself t

by Calliecatt93

A mission gone wrong leads to Spock being taken hostage by a terrorist group. Now, Kirk and McCoy must rescue him.

by EdosianOrchids901

“Kirk wanted a nap. But when he stepped into his quarters, Spock trailing him, McCoy stood inside already.”

by Kyra

Jim is watching Spock intently. "How do you know about established scientific consensus?" he asks. "From my place of origin," Spock answers, as if that explains anything. "Which is…?" McCoy prompts. "You may have heard of it," says Spock. "I began my existence in the third sub-basement of the Vulcan

by Dreaming_of_the_stars42

Spock has always had a difficult time negotiating between his human and vulcan half. This sometimes leads to complex, and rather illogical, emotions that he cannot control despite his training. Jim is rather in tune with his vulcan but finds it hard to bring up his concerns leading to a huge misunde

by Great_Pretender

So a lot has happened since my last nsfw work, I picked up a new software, got some proper HD models, and now I’m here :D Same old same old, the first chapter is an index on what you’ll find within. Don’t look at what you don’t like, I don’t. THESE AREN’T MY MODELS! You can find them pretty easily I

by sapphic_starlight9

Spock was a Vulcan. He wasn't supposed to have a soulmate. He certainly wasn't supposed to have two. Tell that to the anatomical drawings and quickly scribbled notes on his wrists. Or Spock has never drawn on his skin, leaving Jim and Bones not knowing they have another soulmate besides each other.

by T_Bar

Starvation, in any of its forms, was a condition requiring patient treatment. This was a fact Jim was painfully familiar with. No matter how much someone wanted to gorge themselves on the suddenly abundant resources that they were previously denied, doing so would leave them even worse off than befo

by LuxaLucifer

When Healer McCoy and Captain Kirk find a strange man in a strange place, their ship might not be big enough for the three of them. Emotionally Illiterate McKirk to Slightly Less Emotionally Eilliterate McSpirk fantasy AU.

by Viperfang254

Three journeys, three separate missions: Save, Preserve, Explore. Doctor Ryland Grace and Rocky have found the solution to saving the stars, and just need to get it to Erid. The Convict, Simon, nearly died preserving the Black Box, and now that the mission is over, he doesn’t know what to do with hi

by YaynessForGayness

After their most recent shore leave following their not-so-pleasant encounter with Nazis, Spock runs into an old Starfleet Academy classmate who transferred onto the Enterprise to work near him. Their presence sends him spiralling and all they seem to want to do is make his life worse.

by Gun Roswell (GunRoswall)

They’re his.

by the_northwind

Spock is a uniquely frustrating Vulcan.  McCoy has known this since the day they first met, and yet, the hobgoblin still manages to find new, inventive ways of irritating him.  Today, he is lying in a crumpled heap on the ground, insisting that he and Kirk leave him behind. McCoy very well may have

by Jayfeatherlover69

This is a compellation of Star Trek short stories I have written before. They will have faint hints of Spirk but none directly said. --I wrote these a few years ago and have not edited them since--