Their initial plan might have been to keep their distance, but Steve kind of figured that was out the window, now that the Capitol thought they were sleeping together. Which meant he didn't see the harm in stopping over at Bucky's to check in on him, make sure everything was okay. Maybe give him a hard time for disparaging his cooking skills to Peggy.
When he'd rapped softly at the Barnes' front door, it was Becca who had answered, and she'd been quick enough to let him in - something approving in her gaze at the prospect of Steve visiting. Steve had seen her around the District often enough to know she was absolutely bristling at the way things currently were; she was fiery and furious and as much as Steve approved, when he looked at her the only thing he could see was the young woman who'd been killed at Stark's demonstration. He'd found out her name after the fact - Clara, a surprisingly old-fashioned name for someone so young.
"You be careful," Steve said once they'd finished exchanging pleasantries and small talk, something almost stern in the words. "And be nice to your brother, okay?" He gave her shoulder a squeeze, then headed upstairs, where Becca had said Bucky was hanging out in his room. It was a different house than the one the Barnes had lived in before Bucky's Games, obviously, but it still gave Steve a flashback to when they'd been kids. They'd been in and out of each other's houses all the time, never asking permission, just showing up and barging in.
As Steve neared the room Becca had described as Bucky's, he heard the faint murmur of voices and - laughter? - and his steps slowed. Becca hadn't said her brother had company, and Steve was suddenly unsure whether he should interrupt. He could always come back later - or else text Bucky and check to see when would be a good time.
Bucky's voice rang out, deeply amused as he said something about a bird, but the thing that grabbed Steve's attention was the "when you're screwing" part of that sentence. It made him flush, uncomfortable, because he could guess easily enough what Bucky was discussing. And maybe it was good or healthy, the fact that Bucky could laugh about this, but it just made Steve's stomach knot up. And who the hell was Bucky discussing this with anyway?
Predictably, his curiosity got the better of him, and he gave the door two sharp taps with his knuckle before pushing it open, only to pull up short at the sight of Bucky and Clint, of all people. Steve wasn't even sure if they were still fighting or not - they'd left things in such an awkward place, tempers strained on either side.
"Hey," Steve said, the greeting falling out of his mouth before his brain had really begun to process the scene in front of him. The two men also looked happy - far happier than Steve would have expected, given recent events. "I, uh - sorry for interrupting - your sister let me in, Buck. I just... wanted to stop by. Say hello." Check in, but he didn't think Bucky would appreciate that very much.