Steve wouldn't commit adultery, especially with Tony
So Tony is a king about to enter into a political marriage. Steve doesn't want to be his piece on the side, so he gets married first. Tony shows up and says his marriage is political and doesn't mean anything. Steve disagrees. Tony then claims he's there to invoke his right of prima nocta, which he joked about in Age of Ultron. (Basically a king's right to rape a newlywed on their wedding night.) And despite the insult to his new husband, Steve eagerly goes along with it because Tony.
Personally, I don't think Steve is the type to commit adultery. (Or be attracted to a bully like Tony Stark.) What could possibly happen in this scenario?
Note: The original author punished Steve by having him marry Alexander Pierce. That's not going to happen here. I don't know what Emma Frost and her father are like in canon, but here they're not evil.
***
Tony lifted the bottle of wine and took another gulp. He was sitting in one of two chairs that sat before the fireplace. He looked around the honeymoon bedchamber--part of a private suite at the top of a tower on the estate grounds--then glared at the wedding tunic laid on a chest at the foot of the bed.
Steve should have been wearing it right now at his wedding feast. SIR Steve had apparently decided to ignore a pre-wedding gift from the king.
Maybe it was a little obnoxious to dress Steve in King Tony's scarlet-and-gold when Steve was marrying Baron Pierce. That was the point.
Which made Tony feel smug about sneaking onto Pierce's estate with Rhodey and a handful of guards instead of the usual royal parade. Rhodey and the guys would keep Pierce from enjoying his first night with his new husband while TONY claimed it for himself. Prima Nocta. It was good to be the king.
He sat up as the door to the dressing chamber opened, then slouched down as Sir Steve stepped through. Dressed in dark blue embroidered with silver. He stopped short in the open doorway.
Tony waved his bottle and said, "You don't need to be on your knees just yet."
Steve asked, "Ton--Sire, what are you doing here? I didn't see you at the ceremony or feast."
Tony smirked and sprawled back as he said, "I brought a little wedding gift--me."
Then he frowned and continued, "I see you didn't bother to wear my pre-wedding gift."
Steve replied, "No, I didn't."
Then he glanced around the room and said, "I don't understand--where is my husband?"
Tony said, "No need to worry. He's just a little busy right now."
Steve frowned, then said, "I'm sure he would agree we're honored that you...graced us with your presence. But..."
Tony raised his brows and said, "But why am I in your bedroom?"
Steve nodded and said, "Why are you here at all? Especially with your own wedding set for next week..."
Tony set the bottle on a nearby table and said, "I wanted to make sure you were this stupid. You really think marrying the first old man to ask was a good idea?"
Steve's chin lifted as he replied, "I thought an offer of MARRIAGE was the best offer I was going to get."
Tony shot to his feet and said, "I TOLD you I needed Baron Frost to agree to put more workers in his mines. I NEED that metal for my experiments. And the only way to get it was to agree to marry that Ice Queen Emma."
He frowned and continued, "It's a political thing--it would have been the perfect cover so we could finally be together. It doesn't MEAN anything."
Steve looked shocked as he said, "Maybe marriage doesn't mean anything to you. But it does to me."
He moved toward the fireplace and asked, "Why are you here?"
Tony snorted and said, "Obviously not to toast the happy couple."
He stared at the too-perfect Sir Steven. Remembered the little brat had been born to Healer Sarah--and the late Sir Joseph--when Tony was 15.
King Howard and Queen Maria had spent WAY too much time with the sickly, scrawny boy, leaving Tony free to do whatever he wanted.
But then the king and queen had died when Steve was 8 years old and Tony was 23. King Tony hadn't wanted the brat around. So Tony sent Steve and Sarah to assist Erskine, an old healer at the edge of the kingdom.
And then forgot about them. Until years later, when Tony found out that Squire Steve had saved dozens of Tony's knights from certain death.
So Tony found himself giving Sir Steven a knighthood. And being shocked at the strong, handsome young man Steve had grown up into.
He had kept Steve close, and found himself VERY interested. But Steve never took any of Tony's hints. Sarah had taught Steve to wait for the right partner.
But apparently after Tony had signed the marriage contract with Emma Frost, the right partner was that old windbag Baron Pierce.
Tony frowned. Well, he may not be able to keep Steve at the royal castle anymore, but he could definitely make sure Pierce knew exactly who'd gotten to his virginal bridegroom first.
He stepped closer to Steve and said, "I've been far too lenient with you. Letting you ignore what your king wanted because you weren't giving it up for anyone else. But that stops tonight."
Steve's eyes widened as he asked, "What do you mean?"
Tony smirked and said, "Prima Nocta. Haven't you heard? The king gets first crack at the bride on her wedding night--or the groom, in your case."
Steve took a step back and shook his head. He said, "What are you talking about? I'm married--"
Tony interrupted to say, "Exactly. I think I'm going to want you on your knees, first."
Steve said, "But--but you can't--I've never--my hus--"
He took a deep breath and said, "You can't do this. It's--it's not right."
Tony said, "It is MY right. And considering Pierce may not be able to actually get it up, it may be your only chance at a good time. Since marriage means so much to you."
Steve frowned and said, "What about what YOUR marriage means? You signed the contract with Lady Frost. You pledged to forsake all others from that day forward, even before your wedding."
Tony shrugged and said, "What the Lady Frost doesn't know won't hurt me. Or make any difference, really."
Steve looked at Tony a moment, then said, "You gave Lady Frost your word. So your word means nothing?"
Tony's fists clenched as he said, "The word of the king is whatever he says it is. The king's word is law. And your king is invoking his right of Prima Nocta. So GET ON YOUR KNEES."
Steve straightened and moved toward the still-open door. He said, "I don't think so."
He looked into the dressing chamber and asked, "Lady Frost? Barons?"
Tony's jaw dropped as a dozen of his barons and a few other people walked into the room, following his fiancee. Who looked ready to kill.
He gulped and wondered where Rhodey was.
Lady Frost looked at her father as she said, "This was enough for me. I have NO desire to be married to this pig. After everything we've found out, he's not fit to be king."
Baron Frost nodded and said, "I agree. Between the lies and vile deeds of his stewards and Stark's complete inability to care for this kingdom, it's time for a change."
As the other men nodded and talked among themselves, Tony backed toward the fireplace. Then he felt the point of a knife against his back.
He looked over his shoulder to see a red-headed woman with a dangerous smile.
The woman said, "It was so convenient of you to bring just a few guards on your secret trip."
She looked at Steve and said, "I told you this was the perfect trap."
Steve nodded and said, "I didn't believe it, but you were right."
The woman quickly made sure Tony had nothing on him as others took everything metal or useful out of the room.
Baron Frost said, "The reign of the Starks is over."
Tony shook his head and said, "You can't. I'm KING."
Another Baron--Tony never bothered to learn his name, maybe Sang or Rang or something--said, "We're getting rid of all of your cronies. And I don't think the people will be bringing pitchforks or torches to get you out."
The redhead said, "Especially when you haven't given a crap about them since you were crowned. And of course, because they don't know this is where you're being held."
An archer kept his arrow pointed at Tony's heart as the redhead moved away.
Lady Frost smiled and said, "Our wedding feast is now going to be the new king's coronation."
Tony said, "Who's going to replace me?"
He pointed at Steve and said, "Him? He just MARRIED one of my cronies."
Steve smiled and said, "Oh, didn't I mention? Baron Pierce was the first one to go, so we could get everything ready for you."
He held out a hand to the gathered men and said, "Let me introduce you to my husband."
A handsome black man with a gap-toothed smile walked over and joined hands with Steve. He said to Tony, "Baron Wilson, not at your service. Soon to be Prince Consort Wilson. I hope you enjoy your stay."
As everyone turned to leave, Wilson looked back and said, "Sorry to go, but Steve and I have a honeymoon to start."
He waggled his brows and said, "And don't you worry--Steve will have a VERY good time."