“Ah…” Bucky thought of a way to explain.
“I SAID, what is this!?” Steve shoved the hand between his legs again, two fingers opening him up. Shoving the hand in front of his friend’s face, watching the fluid string between his fingers and roll down his hand. He looked close to crying. The blonde’s expression was hurt, angry, betrayed…… the type of passionate expression that happened right before he started one of his infamous fights. Just….he couldn’t believe this was happening with his best friend.

Bucky decided to tell him the truth. He couldn’t lie to him.
“I’ve been messing around with the guys from the docks,” He swallowed, shakily doing his best to hold the other’s gaze.
Steve leapt at him, invading his space, grabbing his shoulders, “Why!?
“It doesn’t mean anything. I only love you, Stevie,”
Steve silently fumed, his disapproval apparent.

“It started before we started. A man has needs, and I didn’t know you’d ever be okay with going this far,”
Steve pulled him upright so he was sitting on the bed.

“I keep em because they give me what you can’t, and I get a bit of money on the side from it.”

“Are you saying I’m not good enough! You’re a whore, Bucky!”
“No! No, Steve! I love what we have! It’s just, with your health issues an all, and at first we didn’t do it all that much! I’ll stop I swear!” That sounded bad, but he hopes Steve knew what he meant.
“Aren’t you worried about danger! Getting found out! Killed!”
“They’re decent guys just trying to blow off some steam, and you know I can hold my own in a fight. I can tell ‘em I have a steady partner now and stop,” Bucky placed his hands on Steve’s face, pleading.
Steve shoved his hands away, throwing Bucky backwards. “What can they give that I can’t give you!”
Bucky whined, “……I just……like to be used by multiple men. But at the end of the day, I know I’m yours,”
“That’s right you are,” Steve pinned him by the hair, “Are you still up for tonight so I can reclaim my territory?”
“Yes, take me back. Use me, I’m yours,”
Steve captured his mouth in a rough kiss, biting his lip and tongue. “I don’t even need to prep you, do I? You’re so loose and wet, you must be pretty resilient, I’ve been fucking you all this time thinking you were a virgin,”
“Oh Steve, you knew I wasn’t a virgin,”
“You told me it was a woman’s fingers, not some man’s cock. There’s a difference.” He plunged in, jerking his hips abruptly, bottoming out.
“Mmm…. Feels weird,”
“It’s pre-lubricated….. Just for you,” He pulled Steve into a kiss as the other tries not to lose himself abruptly at the thought. “Do you like it?”
“Mnnhnn, Yes….” Fiery rage replaced with lust, the smaller began slamming in abruptly, causing the brunette to jerk and moan. A small hand found his hair and wrenched his head to the side.
“But you’re mine, always come home to me,”
“Yeessss….” Bucky slung a leg over the other’s shoulder for a better angle, last of the other man’s contents leaking out as the new member stirred his insides.
“You’re such a slut”
“Yeah?” Bucky’s mind was hazy, “Do you want to watch sometime? I think it’d be fun to take someone else’s dick and get you all riled up. There’s a couple of them. I know four guys at the dock who will do me,”
Steve choked, “You’d never come back from that,”
“It’d be glorious. Four in a row? Can you imagine?”
“Yeah, I can!” Steve pounded into him harder,
“You’re my little spitfire,”
......................

Part 1 done! I've had a lot of time today. Might skip over part 2 (consensual gangbang) for now, because I feel their dirty talk gives a pretty good idea what's to come and I really wanna rape Bucky now.

Onto the trash party! I want to make him forget all his fun and games by getting dicked and abused by a bunch of hydra agents. Whump yes.

How many do you think he can take? And what yummy sick things can they do with his healing factor? Poor Steve just looks on and screams.