We're back with the big day for Tony and Bucky. There's nothing really triggering in here I don't think, just some good old fashioned slashy smut.

As always, all things MCU related belong to the MCU. I make no money from this story and no copyright infringement is intended.

Union

December. The month everyone felt time counting down faster than at any other point in the year. Not only was it their first Christmas as a couple but also as parents. Tony had already received several talks from Bucky to reign in his usual extravagance, Stevie was only three months old and would have zero idea what was going on, and getting her expensive presents would mean nothing to her. Instead, they should buy her things she needed, some toys and so on and save Tony's expensive present buying habits for everyone else.

Reluctantly, Tony had agreed. He knew Bucky was right and that spending tens of thousands on an infant was pretty daft, even if he did have the money. Bucky did, however, veto everyone else when they said not to get a massive tree. Decorating the usual ten to twelve foot tree together was a tradition and something that Tony loved doing with them.

So what if it meant finding pine needles for six months all over the place, they could just get a couple of Roombas to clean up. Besides, last Christmas was the time Bucky realised he was falling in love with Tony, so it was already a very special time of year for him.

Presents for Stevie had to be coordinated with the others or she would wind up getting a lot of the same things over again. Bucky drew up a list and left it on the fridge in the kitchen, anyone who wanted to get her something could just pop their name next to it, and the rest of the things Tony and Bucky would buy for her. Pepper had been over at the weekend to meet the baby and fallen instantly in love with her, congratulating them both warmly and informing them she and Happy were also expecting. Tony had been overjoyed for her and wished them well.

Tony found his fiancé and daughter playing in front of the TV, they were watching some kids channel and Bucky was singing along and clapping for her. Tony walked in just in time to see Stevie give her father her first grin and Tony's heart stuttered in his chest. Bucky pulled her to his chest and rocked her close, spying Tony watching them. "Please tell me you saw?"

Tony grinned. "I did, first ever smile!"

He got down on the floor with them both and pressed a kiss to each of their heads. He joined in with the songs and Stevie graced them with smile after smile. They talked presents and plans for Christmas, even a few wedding plans. They'd set a date of May 26th and had already booked and paid for the venue, they'd agreed not to have a theme and just go with whatever they chose, screw it if anything clashed, and they had a meeting with the registry office next week to book their ceremony and complete their notice of intent to marry.

It had been a hell of a time registering Stephanie's birth, after a very brief debate they agreed that neither of their names would be left off the birth certificate. The team agreed with them, it wouldn't be fair that one of them would have to sacrifice their place on their daughter's birth certificate and be stuck with a random name. They briefly considered naming Pepper as the mother but they quickly disregarded it. Not only would it be unfair to them but also to her. In the end, they'd made an appointment with the birth registry office and once they'd managed to explain about Loki's spell, along with photographs that had been taken, without Tony's notice, he might add, there was little to do but name Tony as Stevie's mother and Bucky her father.

Of course, it hadn't taken long for news of Stevie's birth to hit the media after that. A press conference had been held introducing Stephanie to the world and an explanation that covered the basics without going too in-depth. That brought about questions of their relationship and Bucky was borderline interrogated how he could love Tony when he'd spent over a year as a woman, then regained a male body. Bucky smirked at them, kissed Tony in a way that left no doubt as to how he felt about the genius, and made zero verbal comments on it. The media circus soon died down after that, the journalists (vultures, Bucky called them) quickly seeing that they weren't going to get anything out of any of them.

Not that they had any right knowing anything, their family, including the Avengers, was their business and no one else's. Nothing about Stevie's birth was Avengers related (okay so the spell allowed her to be created, and that had happened during Avengers business, but that was beside the point) and that meant the media had no claim on her, or them. They'd also spied Tony's ring and asked questions, to which Tony had confirmed that he and Bucky were marrying in the summer and no, it was not a public event. They had no intention of allowing the wedding to be splashed all over the papers so every guest would be someone either of the groom's knew, and the members of the Avengers.

While Bucky continued playing with Stephanie, Tony did some Christmas shopping on the StarkTab, fired an email off to May and Peter, inviting them to join them for Christmas. With May's pay being their only source of income Tony was aware that a decent Christmas celebration was hard to pull off. He paid Peter for his 'internship' and he knew the kid helped out a lot with the bills but May was stubborn and would often push back on this, citing the money was earned by Peter.

Even though she was fully aware of him being Spider-Man and that the payment for the 'internship' was a cover, she would still refuse to take Peter's money unless she was absolutely desperate. Tony had considered just sending money to her but he knew that she was a proud woman and she would not welcome the help. It was nice seeing her more often since the incident with Phil Coulson but it was clear she had taken a hit and didn't bother dating anymore.

He was looking forward to having everyone home for Christmas and with the addition of Stevie it was set to be the best one yet. In Tony's mind, last Christmas had been the best one but when he found out he was pregnant with Stevie and she was born he knew every holiday thereafter was going to be amazing. Wedding planning took up a large portion of his time as well but this was an event he took joy in sorting things for. Bucky had been a whirlwind of ideas and what his love wanted, he would get.

X - X

Christmas shopping done, tree decorated, everything wrapped, baking done and Tony could finally take a breath to finalise some wedding details. The meeting with the registrar had gone smoothly, their ceremony was booked and paid, vows put in and now it was smaller details like the cake, photographer and so on. It was two in the morning on Christmas Day and as per usual, Tony was unable to sleep. Instead he was flicking through wedding cake ideas, tasting sessions for flavours and finding nothing he liked. He did bookmark some ones he thought Bucky might like, though he wasn't sure why because if he didn't like it, Bucky wouldn't pick it.

Shuffling from behind him caught his attention and Tony was surprised when it wasn't Bucky he found but Steve, cradling a guzzling Stephanie. "Sorry, Cap, I didn't hear her crying."

Steve sat down and smiled. "I was walking past the room when I heard her fussing, she didn't get chance to make it to crying. Bucky stirred but I told him to go back to sleep. Why are you awake at this time?"

Laying the StarkTab down Tony ran his hand over Stevie's downy head. "I can never sleep on Christmas Eve. I was looking through wedding cakes but none match what I want. I think either we're gonna have to settle on something or possibly come up with something new."

Bottle finished, Steve hefted Stephanie over his shoulder and rubbed her back until she gave an almighty burp. "That's my girl," he chuckled. "Well, you are an engineer, Tony, designing is something you're very talented at. You must have something in mind if nothing matches what you're thinking of."

Tony hummed in agreement. He did have an idea of what he wanted. "I'll run it past Bucky, thanks Steve."

The super soldier handed Stevie to Tony and kissed her head. "Happy to help. Get some sleep, Tony."

Cap left and Tony settled Stevie back in her basket in the penthouse, climbed between the sheets with Bucky and closed his eyes. Sleep continued to evade him but instead of getting up he grabbed a notepad and pen, scratching out his idea for their wedding cake until dawn peeked over the horizon and Bucky woke for his usual morning run. He kissed Tony good morning and made a comment over what Tony had drawn and he knew that Steve's idea had been a good one.

X - X

Since Pepper and Happy were not joining them until later in the day the team decided to do the group meal later instead of breakfast and do presents first, after Stevie had managed to drain her breakfast. Bucky did the feed, walking around and talking to his daughter as she steadily drank. Tony divided presents into piles as he always did and slipped in the extra one he'd arranged for Bucky.

The team gathered around the tree and Tony designated himself as hander out of presents. He and Bucky took turns opening Stephanie's presents from everyone and the infant was going to want for nothing even if one of her parent's was a billionaire. The team had bought everything from a bouncing chair to play mats, hampers of creams, teething gels and toys, a bedside crib, plus a vast array of sensory toys.

Tony's present from Bucky was a framed picture of Stevie's tiny hand and foot prints, with Bucky's script saying 'I love my Daddy more than milk'. Tony laughed and swallowed down the lump in his throat, handed Bucky his present and grinned sheepishly at his fiancé. Apparently they'd both had the same idea except Tony's said 'I love my Daddy more than nap time'.

The Christmas dinner was done to perfection with the combined culinary skills of Bucky and Nat. Pepper and Happy arrived with gifts for Stephanie, Tony and Bucky. Tony had already said they needed nothing, just something for Stevie would be lovely but he was warmed that she'd gotten Bucky something too. Rhodey arrived with Carol Danvers, which Tony raised an eyebrow at and received a death glare from both of them so refrained from commenting.

May and Peter turned up with sparkling apple juice since Tony was teetotal and an impressive box of chocolates for them. Plus May had splashed out on a beautiful dress for their daughter and Tony insisted on changing her into it immediately. Photos were snapped of the infant in her dress and Tony promised to send them to Peter so May could print out any she wanted to keep.

Peter quietly slipped Tony a separate gift and since it was done on the sly Tony simply pocketed it with a murmur he would open it later. Beaming, Peter sat at the table and made grabby hands for Stevie, content to eat one handed so he could hold the sleeping infant. The day was spent with cheer and joy in a way that made Tony's heart burst with happiness, his fingers linked with Bucky's under the table, eating left-handed, and never had he felt so content as he did then.

X - X

As soon as Christmas and New Year were done time seemed to fly by after that. Tony ran through his idea for the wedding cake with Bucky and he loved the idea, leaving them with little to do but find someone who could do it. Tony remembered a bakery not too far from the Tower where his mother would take him on Sunday mornings when they were in New York for business. The family ran bakery had been going for decades and he recalled seeing many cakes in the windows that had been beautifully decorated.

Tony fired an email off to them with a sketch of his design and offered to meet with them to discuss details or any changes that would make the cake possible if the design was too fiddly or awkward. Finding a photographer willing to sign an NDA had been difficult as neither of them had wanted their wedding photos splashed across the New York Times or any other newspaper, Facebook page, Instagram and so on. The NDA had been watertight, going so far as to have SI legal go over the document to ensure there were no loopholes that could be exploited.

In the end, it had been a photographer who specialises in celebrity weddings and had easily signed the NDA with no hesitations. The young lady was courteous, asked no questions at all about Stephanie, Iron Man, the Winter Soldier or anything Avengers related. Bucky had taken a shine to her straight away when Stevie had started to fuss and she'd whipped out a thermos of warm water and offered it to the couple so they could feed her, stating she too had a baby just a little older than Stevie and knew how easy it was to forget something like hot water. They'd expressed their desire to not have stuffy, posed photos where everyone looked uncomfortable. Instead, they wanted more candid shots, relaxed and easy.

Tony's suit was in his closet, well hidden from his fiancé, and all that remained was for the big day to arrive. Wanda had begged to be allowed to sort out Stevie's dress and neither man had been able to deny her. As such, neither of them knew what she would be wearing and it left a little surprise for the day. Bucky got dragged off by Steve for his bachelor party and few of the others, while Tony stayed home with Rhodey. Bucky had balked at the idea of going out when Tony wouldn't be but as the genius had explained, he was a recovering alcoholic and even the tamest of nights out would have wound up with him drinking.

So, as it stood, Tony and Rhodey were reminiscing their MIT days and all the shit Tony had gotten up to. Between the pranks, the stream of men and women Tony had brought back to their dorm, failed projects and Tony's theft of DUM-E there had been no loss of conversation.

"You feeling nervous yet?" Rhodey asked after Stevie had been settled down from her midnight feed.

Tony sat on the sofa and shook his head. "Nope," he said, popping the 'P'. "Zero nerves."

His oldest friend chuckled and sipped his non-alcoholic beer. "I gotta say, Tones, this is not what I pegged life would have in store for you."

"What do you mean, Rhodey?"

"Come on, man, you've always been the wild card. The last thing I ever expected was you getting married and having a kid. It's not a bad look on you, Tones, just unexpected."

The genius chuckled. "I know, unexpected but not unwelcome. You know, when Bucky was first brought into the team I think everyone expected me to lose it. Flyers would randomly appear for AA meetings, everyone kept a really close eye on me and if it hadn't been J pointing out that they were concerned I'd have found it annoying. But, it actually made me feel more at home. I know they didn't always show they cared and I guess the whole Loki incident kinda pointed that out to them but they're good people, and Bucky is by far the best of them. I couldn't ask for a better husband, platypus."

"I'm genuinely happy for you, Tony. I know we used to joke that if we hadn't found anyone by the time we were forty we'd just marry each other, but you seriously hit the jackpot. How many people do you know could go through an unplanned sex change and still fall in love with them?"

"Well, you did, minus the falling in love part, of course," Tony said. "There was no hesitation or uncertainty from you, Rhodey. I wanted help and you gave it."

"Like I said, how many chances was I gonna get to say I'd fucked Tony Stark and them not realise I was being serious."

"Fair point," Tony conceded. "No one better to stand up there on Monday with me than you, Rhodey."

"I forgot to ask, what did the kid give you for Christmas?"

A frown marred Tony's face. "Huh? Oh! You mean Peter?" Rhodey nodded. "Apparently he spoke to May about our wedding rings and asked if he could gift us hers. She still had Peter's Uncle Ben's ring and didn't wear her own anymore. I wasn't too sure at first, felt weird taking rings that don't belong to us, but Bucky said it was the sentiment behind them. Yes, Ben died violently but he and May had been teenage sweethearts and Peter is certain if he'd still been alive they would have been married still. I mean, we had to get Bucky's enlarged because his hands are fucking mallets but, yeah, in hindsight it's a really sweet idea."

Rhodey clinked her beer bottle with Tony's. "No one I'd rather be best man for than you, knucklehead. And, absolutely, the sentiment is wonderful. That kid has a heart of gold, how the life he's had hasn't screwed him up is beyond me. If there was any other couple on this planet who are literally until death, it's you and Bucky."

When Steve and Bucky returned that night the latter was completely wasted. As far as Tony knew it was impossible for the super soldiers to get drunk but one look at Thor told Tony everything he needed to know. "Have fun on Asgard?"

Thor gave him a sheepish grin. "It was most entertaining. Though, I am not too sure the young maiden who danced for him was impressed that your betrothed believed you danced better."

It took Tony all of point three seconds to realise Thor meant the Asgardian version of a stripper and started howling with laughter. "This junk in the trunk moves well," Tony cackled, slapping his own ass.

"Probably a good job we did this today and not tomorrow, I'm not too sure if we can get hangovers but if we can, Buck's gonna be suffering tomorrow," Steve said, holding his friend up.

Tony helped get the man up to bed and snuggled in at his side. Bucky gave him a drunken kiss and promptly passed out, mumbling in his sleep that Tony's ass was better than anyone's. The genius fell asleep with the sound of his own snickering in his ears.

X - X

Steve had been right and Bucky suffered with one hell of a hangover on Sunday. As soon as Stevie started to fuss Tony took her out of their room and down to the kitchen for a feed, finding most of the team already there and making breakfast. Nat asked if she could do the feed and Tony was happy to hand his daughter over so he could down a cup of coffee and wake up some more.

There were no plans for the day other than the groom's to make sure they had everything ready and Tony would be staying with Rhodey that night. Both men had agreed to keep at least that tradition and since Rhodey was the only person who still had their own home outside the Tower it made sense, besides, he was Tony's best man and arriving together was pretty much standard. Wanda would be having Stevie overnight so neither of them would see her dress and she'd jazzed up a harness so they could scatter flower petals together.

Steve was Bucky's best man and ring bearer for them, he'd promised no pre-wedding shenanigans and would make sure the man was ready and waiting for Tony to arrive. The debate over who would be doing the walk down the aisle had been short lived. Bucky cited that Tony was by far the more stunning of the two of them (Tony did not agree with this statement) and that he should be the one to make the grand entrance. King T'Challa had flown in a few nights ago and gifted Bucky with a new arm, made of Vibranium and inlaid with gold. The limb was stunning and Tony was not ashamed to admit that he had drooled over the new appendage. He'd also gifted Tony a large supply of Vibranium and he already had plans to make it into a suit if he could get the nanites built out of it. Naturally, the king had preened over his extremely generous gifts and the team had laughed long and hard over it.

When the evening rolled around Tony kissed his almost husband goodbye along with his daughter and let Rhodey drive them to his place. The house sat an hour's drive from the Tower and was much larger than his friend's former home in Malibu. Being an Avenger came with a generous pay packet that allowed Rhodey to afford something more secure and spacious. Tony hadn't been since Rhodey had done a complete remodel of the place and when they arrived the genius was impressed with what the Colonel had done with the place. It was decorated tastefully but with it all matching Rhodey completely. Much to Tony's delight, Rhodey had built a workshop in the garage and they tinkered together until late into the night, talking, laughing, much like Tony's bachelor night. For old times' sake they crawled into bed together and for once Tony was able to fall asleep easily. In a matter of hours he was going to be a married man and not a single part of him was scared.

X - X

Holy shit he was getting married! Tony pulled on his suit and tried not to hyperventilate as all manner of horrible thoughts drifted through his mind. What if Bucky didn't want to get married? What if Bucky realised he could do better than Tony? What if something happened to Bucky? What if there was a call to Assemble and they had to postpone? Okay that last one wasn't terrible but still! He checked himself in the mirror and knew he looked good but couldn't help but worry he wouldn't look good enough.

"Tony, stop it. I can hear you thinking and panicking from here," Rhodey said, suited up and looking great.

"Fuck, Rhodey, I can't help it!"

His friend grabbed his shaking hands and squeezed. "Listen, everything is going to go perfectly. That man loves you more than anything in the world, besides Stevie, of course. Come on, we gotta get a move on."

The nerves continued right up until the car pulled up and suddenly Tony knew he was okay. All the awful thoughts disappeared and a wave of calm washed over him. He glanced at the doorway to the venue and smiled when he saw Wanda, fingertips glowing red and knew she'd helped to calm his racing thoughts just long enough to get his bearings. Vision handed Stevie to her and Tony had to remember how to breathe when he saw the stunning red and gold dress she was wearing, chubby legs encased in white tights and shiny black shoes on her tiny feet.

The two girls preceded him down the aisle and he walked down with Rhodey's arm overlapping his hand. Wanda moved out of sight and Tony caught sight of Bucky, his body in a suit that left Tony completely breathless and very hard in an instant. Coughing awkwardly, Rhodey pinched his side and Tony reigned it in. Bucky looked gorgeous in a charcoal suit with starched white shirt, black waistcoat, and shoes he just knew were so shiny he'd be able to see his reflection in them.

Guess you could take the boy outta the army but not the army outta the boy. His hair had been pulled back into a loose bun that left tendrils around his face, accentuating his features and left his storm cloud eyes unobscured. Eyes that were completely focused on him and shone with nothing but adoration and happiness.

Rhodey took Tony's hand, brushed his lips over the knuckles and placed the hand in Bucky's outstretched one. "Take care of him, Sergeant."

Bucky nodded once, sharply. "With my life, Colonel."

The two men faced their registrar and listened to him speak, casting glances at one another. They repeated the necessary words in the right places, eyes never leaving one another. They spoke their own vows, soft words of endearment causing tears and some laughter. Tony had expected to feel odd with the ring on his finger but it just felt like home, like a phantom feeling of something that should have always been there but wasn't - until now. Bucky's face seemed to reflect his own thoughts on the matter and they shared a sweet kiss when directed to do so.

The registrar introduced them to their guests as Mr. and Mr. Stark-Barnes. Tony had wanted to take Bucky's name but Bucky had wanted them to have bother their names – just the same as Stephanie did. Now all three of them matched.

They'd forgone a wedding breakfast in favour of a buffet so people could eat as they chose which left the cutting of the cake. The cake had been kept secret from all except Tony and Bucky and when it was revealed, there was a round of chuckles. Tony had been toying with the idea of a multitude of layers, each one having a symbol of their team. They cut it together, feeding one another bites.

Tony had let Bucky choose their first dance song and the soft but smoky voice of Etta James flowed through. At Last played and they danced together easily, their bodies well in tune with one another to move smoothly, twirling one another with abandon and laughing. When the final note played another song started and the rest of the guests joined them on the dancefloor. From the corner of his eye he caught the photographer from time to time, the young lady so unobtrusive Tony sometimes forgot they'd even hired her.

Once the day turned to dusk photos were taken outside, both men wanting the mixed colours of the sky in the backdrop, casting orange and red across their features. The dusky sky set off Stephanie's dress perfectly and the three of them looked stunning in every shot taken.

When they finally retired for the night in a hotel Tony had booked on the sly, Bucky was stripping out of his suit when Tony wrapped his arms around the man's waist from behind and kissed between his shoulder blades.

"I love you, Buck."

Bucky placed his larger hand over Tony's two on his stomach. "I love you, Tony."

Bucky's shirt and waistcoat hung open at his sides, Tony fingers idly played with the sparse hair on his stomach. "Something wrong, doll?" He asked his newly wed husband.

He didn't see it but he felt Tony shake his head. "No, I'm just...soaking it all in."

"Whaddya mean?"

Tony huffed a soft breath that sounded like a chuckle. "I was so calm in the lead up to the wedding, nothing phased me, not even worst case scenarios. But this morning I had a complete breakdown, almost convinced myself I was dreaming and you were gonna wake up at any second and realise you were making a huge mistake."

Gently prising Tony's fingers open, Bucky turned in his embrace and cupped Tony's cheek with the palm of his flesh hand. "Baby, I told you from day one that I loved you, all of you, and this is absolutely what I want. Our family is complete, I feel complete."

Tony shuffled his feet awkwardly. "I was afraid you'd miss the...other me."

"You mean the female body? It was nice, I enjoyed it, but I love you as you are now, Tony. You're gorgeous, there's nothing I love more than watching the muscles in your forearms as you work, or the way you roll your shirtsleeves up after you've finished meetings for the day, tie loose and crooked, and don't even get me started on having you in my mouth, doll, cause I could come just from sucking you off."

Tony's knees buckled and Bucky took the opportunity to unbuckle his belt and drop his dress pants. His cock throbbed in his boxers, every little movement all day had driven him insane. The boxers followed and Bucky leant over the chair to pull his socks off and knew from the sharp inhale he heard that Tony had seen the shiny silver base of the plug in his ass.

He looked over his shoulder at his husband and smirked. "Something caught your fancy, baby?"

"Is that...has that...have you been wearing that all day?" Tony croaked.

He stood up straight and winked at Tony. "Since I woke up, baby. I know there's never been any rush for me to be ready but I've always been ready, Tony. I think...maybe...maybe you were the one who wasn't ready?"

Brown eyes widened and looked away, guilt filling them. "It's not how you think."

Bucky moved over to him and pressed his lips to Tony's forehead. "Oh, I know, baby. I get that you're afraid this is all gonna go away somehow, that the minute we change our roles and you top that I'm gonna bow out but nothing will change."

"I'm sorry, Buck. I don't mean to project like that."

"Listen, it's our wedding night, and all I want right now is for my husband to fuck me six ways to Sunday. I am always gonna love you, baby. Topping me ain't gonna change that."

Tony stripped out of his suit faster than Bucky had ever seen him move and he couldn't help but chuckle. Finally he'd reached something inside the man that let him know that things were good and having Tony top him wasn't about to send him running for the hills. Bucky had wanted Tony before he'd gone through the accidental sex change, had literally drooled over him, and was not ashamed to admit that he'd wanked in the showers to thoughts of Tony, his name falling from Bucky's lips every time he'd come.

The super soldier let himself be led to the bed, Tony's smaller hands pushing at his chest, pupils dilated in his desire, the irises only a thin band of brown but filled with love and lust. Bucky fell backwards onto the soft mattress, the spongy material moulding around his body as if he were laid on a marshmallow. Tony climbed onto the huge bed and crawled up Bucky's body, his lips pressing kisses to any part of the man he could reach.

A warm tongue swirled his nipples and he bucked his hips, desperate to have something touch his dick, his nipples a direct line to his cock. Straddling his hips, Tony leaned down and devoured Bucky's mouth with fervour. His kisses were met with equal passion and when Bucky's tongue slid into his mouth, Tony couldn't resist giving the muscle a slight nip. An honest to god growl worked out of Bucky and before Tony could register what was happening, he found himself on his back and two-hundred and fifty plus pounds of pure muscle straddling his hips and grinding down on him. The metal base of the plug dragged along his dick and Tony's brain short-circuited for a moment.

He spied Bucky snaking a hand back to no doubt wiggle the plug out but Tony clamped his hand around the wrist in a vice-like grip. "If anyone's doing that it's me," he said, a smirk on his lips.

He reached around and tapped a little harder than necessary on the base of the plug and his smirk widened with every jolt of Bucky's body above him. "Tony!" He whined, cheeks flushed.

"What, baby? Too much?"

Bucky whipped his head side to side, hair flying about his face. "Not enough!"

He contemplated letting Bucky bottom from the top, let him control the pace and depth but he recalled his husband's words: he wanted fucking six ways to Sunday and that was exactly what he was going to get. "Alright, baby, I got you."

He tapped Bucky's shoulder and rolled, hoping his husband got the message because there was no way he would be able to actually shove him over. Bucky did roll and Tony landed between his thick thighs easily. His cock throbbed painfully, Bucky's red and weeping and no doubt feeling equally desperate for release. He swiped his thumb over the head and licked the small drop of precum off it, the slightly bitter taste making his mouth water. Tony climbed off long enough to rummage through their luggage and locate a small bottle of lube. He all but ran back to the huge bed and quickly resumed his place between Bucky's legs.

"Does your earlier request still stand?" He asked, flipping the lid of lube open with one hand.

Bucky's grey eyes were completely glazed over and Tony hadn't really done much to him. "Yeah, Tony, I wanna still feel you tomorrow."

His dick gave an extremely interested twitch and a drop of precum dribbled down his length. "Jesus, Bucky, what the fuck did I do to deserve you?"

The super soldier managed a grin, his body so completely pliant that if Tony didn't know better he would have assumed the man had taken something recreational to get that loose and relaxed. He squirted some of the lube onto his fingers and started stroking himself, pleasure sparkling along his spine so deliciously that with one well-timed twist of his wrist he knew he'd come – hard.

He shuffled back with the intention of sucking Bucky off for a bit but the soldier stopped him and shook his head. "No, the only way I want to come is with you inside me."

Convinced Bucky was trying to put him in an early grave Tony damn near bit his tongue in half and grabbed the base of his cock before he could shoot off. "Fuck."

It took some wiggling but he managed to get his fingertips under the base of the plug and gently moved it back and forth until it started to give and slide out. Tony's eyes widened when the shiny metal just kept on going, widening before it eventually tapered to a point and left Bucky's body. The gaping hole of Bucky's ass clenched on empty air and Tony wasted no time in slicking his cock up again and sliding inside, the warm heat of Bucky's body welcoming him easily.

Tony got all of point-three seconds of patience before he was unable to ignore the screaming in his brain to move. He pulled back and slammed forward, his ears ringing with the sound of Bucky's cries of pleasure, face flushed, brow sweaty and eyes fully focused on Tony. He lost himself in that soul-searching gaze, his body working purely on instinct now, his hands holding Bucky's hips with a grip that would be bruising to a regular man, pulling him back onto his cock and all the while, their eyes never left one another.

The earlier sparks of pleasure evolved into a heated pool that gathered in his gut and base of his spine. "Fuck, baby, I can't last much longer."

Bucky managed a dopey grin and nodded. "Gimme everything you got."

Using his body as a weight, he pinned Bucky's legs back, planted his hands either side of his husband's head and snapped his hips quickly. The new angle must have been what Bucky needed because his cries quickly changed to outright screams until suddenly every muscle in the super soldier's body stood out and he roared, his dick pulsing, coming completely untouched and coating his own stomach in sticky semen.

Watching Bucky come so fiercely and feeling the way his ass clamped down on Tony's cock ripped his own orgasm from him and he yelled Bucky's name, his vision going white and collapsing on Bucky's chest, uncaring that his own stomach would now be covered in the sticky white fluid. They trembled, the after effects of the orgasms still present and managing soft, lazy, little kisses until their brains managed to re-engage and coherency became a thing again.

Bucky's flesh hand cupped Tony's cheek and he brushed his lips over Tony's plumper ones. "You know," he croaked. "When I said fuck me six ways to Sunday I was exaggerating. I actually don't think I could move for several days."

Laughing breathily, Tony nodded. "Probably a good job that Stephanie has like a dozen aunts and uncles that would be glad to have her for a night or two."

Unfortunately, they had to pull apart and clean up otherwise they were both going to end up with dried cum sticking their belly hairs together and no one needed that level of discomfort after such mind-blowing sex. They clambered beneath the sheets and Tony settled his head on Bucky's chest. "Any regrets?"

A hand carded through his thick hair. "None," Bucky said. "Falling in love with you, having our daughter, and marrying you are the easiest things I have ever done in my life. I told you, Tony, it doesn't matter what body you're in, I know you anywhere, in any form, and I love you endlessly. Stop second guessing yourself, I promise you, there is nothing that could make me happier right now than what we already have."

Tony sheepishly ducked his head and pressed a kiss over Bucky's heart. "Sorry, didn't mean to sour the moment. I love you, Bucky. More than life itself."

The solider chuckled. "As I love you, Tony. Come on, get some sleep, and don't think for one moment I won't be returning the favour in the morning."