This series took over my life for two days. It kept me up til ridiculous o’clock because I could not put it down. It’s a long one and takes a little while to get into their relationship and their stories, but I quite like that. We see Jim as others see him at first, and as he and Bones grow to know and trust each other we peel back the layers. As is obvious from the summary, Joanna features prominently in this fic and she is just a cutie-pie. I loved her in it. Anyway, I recommend this one highly.

With thanks to winchesterassbut for the rec!

AO3

Author’s Summary

Leonard McCoy moves his life and his daughter across the country to San Francisco for a job opportunity that will allow him to pursue his research and raise Joanna. Fully immersed in his life as a single father, he’s not looking for, nor expecting, the interest and attention from his daughter’s kindergarten teacher, Jim Kirk. Jim offers Leonard a connection he’d been missing, and helps Joanna realize her potential. Together, they learn more about themselves and each other, developing and changing personally and as a couple, and over the course of their relationship their concept of “family” evolves.

Approx 351,000 words

This may well be the best McKirk AU that I have read. It’s certainly a must read for all. It’s well-written with a tight plot, great characterisation and I was just swept away by it; I couldn’t put it down!

One thing I really loved was the author’s explanations of procedures and the mechanics of a fire and, indeed, firefighting. Fascinating stuff which made for some very informative author’s notes. If you’re someone who usually skips them, please make an exception this time and read the end notes of each chapter.

Please be advised that it is about firefighters and paramedics and whilst not too graphic, it obviously contains scenes of accidents, fires and the situations and injuries that go with them.

AO3

Author’s Summary

21st Century fire department AU. Paramedic Leonard McCoy flees a disastrous break-up in Savannah and ends up working at a fire department in Iowa.

Approx. 137,000 words

How have I not recced this yet?? It was one of the first I read in this fandom and it continues to be awesome. Are you a fan of a certain grumpy, straight-talking doctor? Are you a fan of BAMF!Bones? McKirk shipper? Then you have absolutely no excuse. Go. Read it now. Now! I mean it!

AO3 (links to the first and main story)
Series link

Author’s Summary

Why ever would Leonard want a boring day with nothing worse but a case of the sniffles to treat, when he could crawl through the maintenance shafts of a space station filled with Klingons instead? It’s an odd chain of events that lead him to this point, but when push comes to shove (and Klingons come knocking), someone’s gotta take charge and make sure they all survive until help arrives.

Main story approx 91,000 words
Series approx 135,000 words

I now have tears running down my cheeks from the end of this great little story. It’s got an original plot, nothing like anything I’ve seen before and it hits you right in the feels. Love it.

FF

Author’s Summary

What started out as leverage turns into an unexpected bond. Gen. Protective!Khan. Sorta Deaged!Kirk.

Inspired by this prompt by laidbacktionist at the star trek kink meme: I don’t care in what context/event but I’d love to see a fic in which Khan protects Kirk. Either bodily or emotionally or anything really. Either Khan did it all the time or if this is the first time he did it for Jim. It’s all up to the filler!

Warning: Minor spoilers for Star Trek Into Darkness.

Premise: Carol and Scotty are beamed back to the Enterprise but Khan keeps Kirk on the Vengeance until he can confirm his crew is intact. He is furious when he discovers the torpedoes are empty. A struggle ensues and Kirk manages to sabotage the ship, sending them both to the surface in a controlled but fiery crash.

I don’t know why, but I do have a bit of a soft spot for some McCoy/Chekov on occasion. Sweet fic about how Kirk might interfere to make the jackass realise he ought to do something.

FF

Author’s Summary

“After an away mission Jim confronts Bones about his feelings about Chekov. When the ensign comes to his sick bay that night will Bones finally give into his desire for the young ensign? Written for blackholesofsymmetry on tumblr.”

Approx 2000 words

Short Kirk tells Bones about Tarsus fic, but with a twist. It’s not Tarsus he’s trying to explain, it’s where he got the badly carved wooden dinosaur that he’s playing with.

AO3

Author’s Summary

“Jim tells Bones about a Christmas past.”

Approx. 2000 words

Oh how I love this story, and pretty much anything by this author really.

AO3

Author’s Summary

Slow-developing K/M, beginning right after the shuttle ride and showing what happens the first year at the Academy. Told from McCoy’s POV.

KIRK: I know the feeling of being picked on very well. I had it at the Academy. An upperclassman there. One practical joke after another, and always on me. My own personal devil, a guy by the name of Finnegan… You never knew where he’d strike next.

FINNEGAN: You never know when I’m going to strike, huh, Jim? (hits him on the jaw) How’s this?

–From the TOS episode “Shore Leave”

If you don’t know where you’re going, any road will take you there.

–Lewis Carroll

approx 65,000 words