Chapter Text
Every day.
Every single day, Steve is more beautiful than the last. It should be impossible, but somehow it’s not.
Bucky watches Steve’s muscles ripple and flex as the mating hormones flow through him. He turns around to put his physique on display for his alpha, so much love and oh- oh, that, that is unbelievable - in his eyes. They’re still bright blue, but won’t be for long. His pupils have been slowly dilating for awhile now. Bucky licks his lips in anticipation..
The first wave had nearly knocked Steve out when it hit mid-mission, but it’s nothing like the first time or even the second time he’d gone into heat. He has a mate now, and that’s a whole other thing. Fortunately, his physiology recognizes that he has a committed alpha and doesn’t let him get caught out in the open. Bucky was able to get Steve to safety before he could get hurt. After that, finishing off the assholes du jour was easy: knowing how vulnerable Steve was only made him fight all the harder. He’d nearly growled at anyone who came near on the flight back to the tower, and probably would’ve killed anyone who’d actually touched Steve. Especially Stark, the only other alpha on the team, had he so much as thought of challenging Bucky.
Now, though, Steve’s leading him to their shared bedroom at the tower- no time to go home- and it’s glorious . Steve looks like an angel with hair of spun sunlight, and smells even better. The best thing, though, is that he has the presence of mind this time around to actually seduce his alpha. It makes Bucky want to claim him more than ever before, which is yet another impossibility.
Steve finishes removing his clothes and lies back on the bed with the most intense expression Bucky thinks he’s ever seen.
What on earth did I do to deserve this? Bucky wonders, and pounces.
He puts a leg between Steve’s thighs, forcing them to open wide, and kisses him to within an inch of his life. Steve comes as though Bucky had commanded it, and just the thought of that makes his already hard cock strain painfully against his underwear. Somehow, he manages to get it freed from the confines of the Soldier’s uniform while never letting his lips leave Steve’s.
Steve thrusts upwards and comes all over Bucky’s dirty uniform and it occurs to him, too late, that maybe they should’ve washed up before doing this. That might’ve been impossible, though, with Steve smelling like life and light and the sun itself and Steve and pure, utter sex .
Yeah, no. There’s no way in hell he could’ve resisted even if Steve had wanted him to. Not here, behind closed doors. Hell, if Steve had asked for it, he’d have given it to Captain America right there on the damn battlefield in front of the entirety of Chicago. That image makes him huff a laugh right into Steve’s mouth.
Steve pulls back with a grin. “What’s so funny, Buck?”
Bucky glares at him as though affronted by the interruption. “Why, my sexy little omega, none of your concern. You just lie here and be pretty, you hear now?”
Steve rolls his eyes. “Drama queen-”
It’s cut off as Bucky bites his neck, hard. He lets out a rather undignified squeak as Bucky pins him with all four limbs. Steve’s eyes roll back into his head at the display of dominance. Bucky keeps his mouth on Steve; the bite will leave a mark that will still be visible tomorrow, though within three days it’ll be long gone. He figures that just means he’d better do it over and over. He wants the world to know Steve belongs to him.
As though the collar didn’t already make that clear enough.
But no, it can never be enough for him, can it? Seventy years they’d been apart, and he could spend the rest of his life within and beside Steve and it’d never be enough.
“Fuck me, Bucky, please.” Steve can hardly breathe at this point, and Bucky marvels at how wrecked he looks, how wrecked he clearly is inside. Bucky’s not showing it like Steve is, but his own need is just as strong.
“You want it like this, Stevie? Bone dry? Come on now, be a little bit patient.”
Steve, shockingly, bares his teeth. “I don’t care,” he grinds out- literally, as he comes against Bucky’s stomach again.
“You will when I put it inside you and you scream and beg.”
“I’m gonna scream and beg anyway.”
“... point taken.”
Bucky scoops up a bit of the come on Steve’s belly, slicks himself up, and pushes into him. As predicted, his omega arches up and lets out a cry more suited to the battlefield than the bedroom. Jarvis might have been alarmed had Tony not been wise enough to issue a warning, a fact for which Bucky is extremely thankful.
Steve is panting and begging senselessly, come streaking both of their bodies again. The clenching around Bucky’s dick is enough for him to go off as well, shooting inside Steve for the first time in what will be a long, glorious three days.
They lie panting together in the cool air of Stark Tower, grinning like idiots at the fact that they can finally do this again after so long. Not just fuck like bunnies, but mate . It gives Bucky a thrill that runs down his spine and makes him rock hard again within seconds.
“So, Steve,” he begins, breathless like he’s just run across wintry Siberia, “you’re gonna be good for me, aren’t you?”
“What are you talking about, Buck?” Steve looks like he has no idea what Bucky’s thinking, but the glint in his eyes gives him away. They’re wide and approaching fully blown.
Bucky just stares at him, waiting expectantly. This is the part where Steve usually loses it, even some nights without the hormones driving him crazy.
Indeed, Steve swallows audibly after a moment, and his eyes close like he’s trying to get ahold of himself. “Yes. Yes, I’m gonna be good.” He sounds a bit like he would if a HYDRA agent had caught him and put a knife to his throat… or if a predator had cornered him in the woods.
Fuck. Bucky’s gonna bust without even being touched.
He swings around off the bed and puts his feet on the floor, motioning Steve to his knees. “Suck me off. Twice.”
Steve’s eyes grow even wider as he does so with remarkable enthusiasm, not even minding the fact that Bucky’s cock had just been inside him. He licks and sucks and swallows every single inch like he was born to do it. By the end, Steve is gasping from taking Bucky’s cock so deep. Bucky’s come in record time, twice in just under three minutes; he knows because he was watching. And he’s still hard.
Steve’s eyes are glassed over as he looks up at Bucky like he created the fucking universe. He’s at the point where Bucky’s not even sure he can ask to be fucked, so Bucky stands up, pulling his Stevie with him, and practically throws him against the wall, entering Steve as he sinks his teeth into Steve’s neck. He pounds him against the wall like it’s the last time he’ll ever fuck his omega.
Steve gets off three times before Bucky’s done, painting the wall in amounts the Home Depot mixer would envy and pleading after each one for a reprieve for his overstimulated prostate, but Bucky’s not having it. He doesn’t even let up on the bite until he’s come deep within Steve once more, and his mouth is red with Steve’s blood.
The omega sinks to his knees in front of him and stares, wide-eyed, at the mess around Bucky’s lips. Bucky makes sure Steve is watching as he licks them. It only makes him feel more feral. The edges of the world are starting to dim; both men are losing their grip on reality a little bit at a time.
Bucky feels a little bit like the Winter Soldier in that moment before he really lets go, staring down his target. Only this is a different kind of target, and a better kind of violence than the Soldier was ever allowed to know. And the only reason he can have it is because of Stevie- his precious Stevie.
Two and a half days later, sweaty, panting, and exhausted, Bucky holds his omega close to his heart. He can hear the thump of Steve’s heartbeat, soft and strong and true. He remembers being so afraid that Steve wouldn’t make it through the winter, that his wonderful little heart would just give up. Every year, he’d go through that, not just feeling the fear, but trying to hide it from the stubborn little guy that captured his own heart the moment they’d met. He’ll never have that fear again, and he thanks his lucky stars for that- among many other things.
Steve stirs against him. Bucky runs his hand along Steve’s stomach and kisses the back of his neck, pulling him closer.
“God, I love you.”
“Mmm. Good morning… morning? Buck.”
Bucky lets out a soft laugh. “You back to earth yet, Captain?”
“Ugh, don’t call me that, Soldier. ”
“Hey, unlike you, I’ve made peace with my uniform. And if I recall, you once told me you find it incredibly sexy. In fact, I don’t hear you complain when the Soldier’s eyes fall on you.” He nibbles at the fading bruises on Steve’s neck.
Steve shivers. “Hey, that’s… not the same thing.”
“Hmm.”
His omega sighs, leaning back against him. “Do we really have to get up?”
“C’mon, babydoll, the world needs us. You of all people should know that.”
He starts to get off the bed, but a hand stops him and pulls him back down. “Y’know, I was thinking…”
“Oh my god, stop the press! Steve’s thinking! The world must be ending!”
Steve groans. “Bucky, my god you’re a mess. Stop.”
“I’m sorry, your highness. Please continue.”
Steve’s glare is only half-hearted. Uh-oh, this must be serious.
“I was thinking… what if I, uh… gave up the uniform?”
“And what, got a different one?”
This time, Steve rolls his eyes. “Aren’t you supposed to be the smart one?”
“Uh, I’m not sure about that.”
“Well, let me just say it plainly then: what if I was no longer Captain America?”
“You mean… retired?”
“Yeah. Like if I just, I don’t know. Was your house husband. You could go off on your little adventures with the Avengers, and I’d be here waiting for you when you got back.”
“I didn’t realize you were considering that, Steve.”
“I finished the mission I started so long ago, when I first found you at Azzano. I finally saved you. The rest? I don’t know how important it is anymore, ya know?”
Bucky looks at Steve, an expression of awe crossing his features. “Steve…”
“No, hush. You’re worth it, all of it. I have been thinking about it, Buck. I have to consider what’s really important in my life, and if I’m out on an op by myself for three weeks, and then I come home and you go out for three more… I don’t know how much I can stand being without you. Bad enough if one of us has to do it.”
“Huh. Well, that’s your choice to make, but it’d be tough out there, not having you to watch my back.”
“Maybe you could take a piece of me with you. Become Captain America.”
Bucky laughs harder than he can remember ever doing before. He laughs so hard he nearly throws up.
Fat fucking chance, Rogers.
Out loud, he replies, “I’m the Winter Soldier, babe. I fight with Captain America, but I’m not him. Yin doesn’t magically become yang, you know?”
Steve gives him that sad hope face, and Bucky grins, full and bright and exactly what he longed to feel again when he’d been the Asset, as the Soldier. What he’d never thought his face could even do anymore.
“Steve, baby. I’m happy with who and what I am, now that I have you here. I support you no matter what you decide, okay?” He nuzzles the omega’s hair, breathing in the scent that is still just as sexy even after the heat is over.
Bucky has something he wants to say, but he hesitates. There’s no way to predict how Steve will take this, but it’s something he’s been thinking for awhile.
Here goes.
“Y’know… sometimes I do wish you could have a baby, as crazy as that sounds.”
Silence. His heart pounds. Did that just go too far?
“Sorry, I know that’s probably creepy as hell.”
Steve remains silent for another moment, but it turns out to be a ponderous one rather than one of disgust or anger, and for that, Bucky is glad.
“Nah, when those hormones come… it’s like… you can’t help but want it. It’s a mess, I mean, I’m not made for that and it’s weird as hell to imagine a man being able to, but… I guess I can’t say I’m sorry about it, even when it comes with that strangeness. It brought me to you, after all.”
Bucky smiles against his neck. “Well, maybe one day we could adopt? When we’re done with… all this.”
“I’d love that, Buck. Let’s see if I’m even able to quit first, though.”
“... that’s a good point. Never could stay out of trouble, could you?”
He runs his fingers fondly through Steve’s golden hair. It’s doubtful Steve can stay out of trouble, that’s true, but no matter what happens, Bucky will be there to get him out of it. It was his very first mission, after all.