Right in the feels, this one’s a beautiful angst fest. Awesome use of non-source material. Music by Message To Bears.
(Source: https://www.youtube.com/)
Tag: Pairing: Steve Rogers/Bucky Barnes
Salt, Sweat, Sugar, by RockSaltAndRoll
Bucky knew instantly that this was the guy he’d been waiting for – the kid definitely didn’t look old enough to get into the bar, so it was damn lucky that the company paid the place well enough to put its younger models on the guest list so they can walk straight through the doors. He was small and slight, barely five-foot-five inches tall and very slim – Bucky would bet his left arm that if he took Steve’s shirt off, his ribs would be visible. He was blond and his eyes were so blue and big that Bucky could see them clearly from across the room and when he got closer Bucky could see the dark, thick eyelashes that framed them. God, the kid was beautiful. Very young, but very beautiful.
Adult, pornstar AU. This is just plain sexyfuntimes. Also, hawt, because those boys have chemistry, no matter in which universe they meet. 
Vid: Crave You, by Howland Bird
Short – but it’s a Steve/Bucky AU starring pre-serum!Steve, need I say more? 
Music: Crave You feat. Giselle, by Flight Facilities.
(Source: https://www.youtube.com/)
Vid: Gone Gone Gone, by Lucy’s Heart
I surrender honestly. You’ve always done the same for me. […] I’ll love you long after you’re gone.
This song is perfection, and the vid matches it beautifully. Music by Phillip Phillips.
(Source: https://www.youtube.com/)
What Would Have Happened, by DevBasaa
But, try as he might, Bucky couldn’t sleep. He could only think of the previous dream, and of the pain he’d likely have felt while standing up at the altar with Steve as he married Peggy. He wished Steve hadn’t found the thought of their respective marriages so endearing.
After a moment, though, Steve closed the book again. He rested it on his lap and said. “But I don’t think that would have been it.”
Adult, post-WS. Love this peek at what might have been if Bucky hadn’t fallen and Steve hadn’t crashed – and since it’s a dream, there’s no icky cheating issue. The stand-alone companion piece about Paris is awesome, too.
Day 4: Bondage, by hannahrhen
Steve knew he could escape the cuffs, but the Winter Soldier didn’t.
Adult, PWP. The Winter Soldier has Steve just where he wants him to – and Steve doesn’t really want to be anywhere else, either. This is hot like burning.
Filk: Some BUCKY I Used to Know, by The Right Stuff
Bucky or Bucky/Steve feels aren’t anything to laugh over as a rule, but this song parody of Gotye’s seriously over-vidded song is awesome.
(Source: https://www.youtube.com/)
Vid: Dust and Light, by Loki
This manages to hit some different notes as well as an awesome monologue by SebStan. Music by Twelve Titans Music.
(Source: https://www.youtube.com/)
We Require Certain Skills, by trinityofone
Bucky was all loose-limbed and languid, laughing as he flipped a square of chocolate into his mouth with a small flick of his tongue. “How else am I supposed to grow big and strong like you?”
Steve felt himself flush. He concentrated on hanging his jacket on its peg and fought the way Bucky’s laughter tugged at him as it changed from something light to a low, dark chuckle.
Adult, comic!verse. Bucky is underage, Steve isn’t much older, but still feels guilty (of course). Reading Brubaker’s Captain America, I must admit, something like this did cross my mind… Love this take on comic!Bucky in the War!
Left And Slow, by Salmon_Pink
He’ll accept every part of Bucky, old and new.
Adult, post-WS. Fisting. Emotionally satisfying fisting. Guh.