Electric Impulses – iam93percentstardust
Bucky/Steve/Tony
16,426 words
All children, even genius ones, deserve a friend and when one of Tony Stark’s friends destroys his favorite toy, he decides that the friends he creates are better than the ones he meets. Inspired by his father’s stories about the Howling Commandos, he creates holographic versions of his childhood heroes. As he grows up, peerless and lonely, Tony continues to upgrade his holograms until they become fully-fledged AI, capable of moving around the tower and offering advice and above all, loving him.
This shouldn’t be a problem and it isn’t–until the Avengers move in.
canon divergence, tw: child abuse
Four’s a Crowd – RosaleenBan
Bucky/Steve/Tony
46,023 words
In an alternate universe, Tony Stark never came out as Iron Man, even to his teammates. Sometime after CA:WS, Bucky comes to the tower, regains his memory, and rekindles his relationship with Steve.
A year later, Steve and Bucky realize neither of them have ever had sex with anyone else, and they probably won’t if they keep their relationship monogamous. When they decide they want to explore, Bucky decides to ask Tony for a one night stand, and Steve decides to ask Iron Man. Both of them bite off more than they can chew, as they both discover that they’re in love with their extracurricular lover - while still being madly in love with each other. Tony just hopes it’s all worth it, because if they ever find out it was him with both of them, he’s pretty sure they’ll never want to see him again.
canon divergence, friends to lovers, hurt/comfort, panic attacks, secret identities
From Winter’s Cold – 27dragons
Bucky/Steve/Tony
64,370 words
Fucking Asgardians.
Thanks to one of Thor's crazy stalkers, Tony finds himself stranded in the past. If he significantly changes the course of history, he might never get home again. The choice, when it appears, turns out to be not nearly as difficult as he might have expected.
canon divergence, time travel
Imagine You and You (and You) and Me – RomancebyFaye
Bucky/Steve/Tony
36,749 words
Steve and Bucky both have two soulmates. When Bucky falls, Steve goes into the ice not long after. He wakes up decades in the future and has a rough introduction to his other soulmate, Tony Stark.
Neither man seem too enthused about the revelation, and Steve is slightly surprised when Tony makes no demands of him or even uncovers his soulwords. Turns out, Stark doesn't think too highly of soulbonds. Still, they manage to work together and Steve comes to realize he might have misjudged Tony.
He's working up the nerve to try and make this more than a friendship when Bucky turns out to be alive. And not quite alone.
Or, Steve is jealous of cuddles and bed sharing, Tony has no expectations of his soulmates because his soulwords are extra crappy, Bucky is sharing his psyche with the Asset, and all of them are on a converging path to falling in love.
au: soulmates/soulmarks, canon divergence, domesticity, PTSD
Love of Ours – emeraldine087
Bucky/Steve/Tony
253,827 words
Tony Stark REALLY hates magic with a passion. He knows it's got something to do with how his memories aren't quite as he remembers them. He knows Steve screwed him over and sent him that shitty apology with an even shittier phone. And he is pissed supposedly with no end in sight and no resolution to be had. And yet, he also has this other set of memories - One where he is madly in love with Steve...
Steve Rogers REALLY feels like things with Tony could've gone a lot better. So he stubbornly stays in the Avengers compound to try to set things to rights, vowing to repair his Avengers family and his friendship with Tony. And yet, his endgame is still to help Bucky get rid of the Winter Soldier programming - Help his first and the one true love of his life to find himself again...
Bucky Barnes REALLY loathes having to rely on others to tell him about his life. Steve is a big help, but sometimes, Bucky feels like Steve's after helping him for the benefit of the person he used to be rather than the person he is. Unlike Steve, Tony doesn't give a shit about him. And yet, it's with Tony that he feels like he can be or do anything - Like fall in love with the man he had orphaned all those years ago...
canon divergence, dimension hopping
They Never Went Further, They Never Went Back – EachPeachPearPlum
Steve/Bucky/Tony
26,893 words
The vigilante Iron Man is in the habit of showing up at a fight and disappearing again when it's done, whether the Avengers want his help or not. Steve has had more than enough of it, which is why, when Bucky finally manages to get him with a tracker before he flies off, Steve isn't going to let little things like a broken leg, an overprotective boyfriend, and a mysterious satellite deadzone get in the way of tracking him down.
Their - okay, fine, Steve's - truck breaking down on them might be a bit more of an obstacle, but at least the mechanic they've found, a guy called Tony, is nice enough to put them up - or should that be put up with them? - for a few nights while he works on repairing it.
ace character, canon divergence, established relationship, secret identities
(Far From) The Optimal Response – newtypeshadow
Bucky/Steve/Tony
8,849 words
Although rescuing his soulmates, Steve and Bucky, isn’t new, Tony never planned for them to find out he's the one helping them, much less catch him in the act.
He certainly didn't expect them to ever want him back.
au: a/b/o, au: soulmates/soulmarks, canon divergence, getting together, kidnapping, mutual pining
My Normal Approach is Useless Here – windsweptfic
Bucky/Steve/Tony
11,582 words
Tony finds Bucky frozen in the Alps and brings him back, thinking it'll help Steve adjust to modern life if he's not alone. Unfortunately, he finds it has the side-effect of him becoming irrationally jealous.
canon divergence, enemies to friends to lovers, getting together, hurt/comfort, injury recovery
Old married couple – Bill_Longbow
Bucky/Steve/Tony
576 words
One of these days Clint will have to do something drastic, like stage an intervention, today he just watches the fools at their breakfast ritual.
canon divergence, fluff, mutual pining
Penny Candy and Sparklers – StrivingArtist
Bucky/Steve/Tony
13,677 words
James Buchanan Barnes: formerly the Winter Soldier, formerly Captain America’s right-hand man, formerly a sergeant, formerly a dock worker, formerly Stevie’s best friend.... currently a glorified prisoner of Prince T’Challa.... had trouble wrapping his head around all those former selves. He spent too much time thinking about all the bits of him that he kept gluing back together to pretend he was a person anyone would want to keep. He spent even more time picking at the cracks, pointing the flaws out to himself. Only thing he did more than that was make sure no one else noticed how far he was from human.
So, James Buchanan Barnes, who didn’t know what to call himself, who didn’t know how to go forwards, agreed, and moved back into the tower where his best friend lived with a husband orphaned by the Winter Soldier.
canon divergence, hurt/comfort, texting, tw: suicidal thoughts/reference
Sunshine and Grey Skies – InsaneJuliann
Bucky/Steve/Tony
10,048 words
Inspired by a tumblr prompt from months ago that asked me for "AU with Captain Bucky and Winter Steve?" and OT3 feels.
This… this was the original Captain America. From Project Rebirth. The one Howard had always spoken of highly, compared Tony to, wanted to find.
Tony found himself glad Howard never had.
The Soldier shifted the gun, so that it pointed right at the eye of the suit.
Tony considered his options. This wasn’t the first time they’d found the Soldier. Tony had been thinking for a while now that the Soldier was keeping tabs on them. On Bucky.
“Aren’t you tired of this?” Tony asked.
canon divergence
the chariots of angels are colliding – deathsweetqueen
Steve/Bucky/Tony
5,141 words
Tony takes his time padding over to the hut.
Each step feels like he’s barely moving a fraction of an inch, but he forces himself to keep going.
The hut is empty when he peers inside.
“Hi.”
Tony startles, an odd little noise escaping him. When he turns around, Barnes is standing behind him.
“Hi,” Tony returns, his voice rough.
He looks different, Barnes, hair longer, beard thicker, eyes clearer, sharper, more vivid, less haunted, less hungry.
Barnes swallows thickly. “Are you here to kill me?” he asks.
Tony shakes his head. “No, I’m not.”
canon divergence, enemies to friends to lovers
This Might Just Work – Odsbodkins
Steve/Bucky/Tony
16,253 words
Bucky Barnes is unwillingly dragged along when Nick Fury goes to talk to Tony Stark about the Avenger Initiative, as a little demonstration of the bigger universe Tony's just joined.
canon divergence, fluff, getting together