Author's Note:
The following events take place during the first Avengers movie.
Most of the movie's events remain the same unless otherwise stated, though I may reorder some of the chronology for the sake of pacing. I jump around through the story so this works better if you remember the movies well.
Of course, Marvel owns all the rights to these characters, and there will be spoilers for the films involved.
********
"There's not many people that can sneak up on me," Loki said, turning to face her with that devious grin of his.
"But you figured I'd come," Black Widow replied, knowing he was just as likely bluffing.
"After. After whatever tortures Fury can concoct, you would appear as a friend, as a balm. And I would cooperate."
"I'm not here on anyone's orders."
Stone-faced, the agent pulled out her phone and tapped away for a moment. With a final swipe of her finger, all the CCTV in the room powered down. Spotting the cameras droop down and point at the floor, their red lights flickering off, Loki looked pleasantly surprised.
"S.H.I.E.L.D. has all the best apps," she quipped, though she knew he likely didn't know the meaning of the word. "Now - I wanna know what you've done to Agent Barton."
"I'd say I've expanded his mind."
"And once you've won. Once you're king of the mountain. What happens to his mind?
"Is this love, Agent Romanoff?"
"Love is for children. I owe him a debt."
"Tell me," Loki said, sitting down.
She knew he would take the bait. If he thought he could exploit their weaknesses, she'd give him one to distract him. He'd be toying with her, never knowing he was being manipulated. So she pulled up a chair and told him a story, or at least the cliff's notes version.
"What will you do if I vow to spare him?" Loki asked.
"Not let you out..."
"Ah, no. But I like this," he laughed. "Your world in the balance, and you bargain for one man."
"Regimes fall every day. I tend not to weep over that, I'm Russian... or was."
"You're not nearly as strong as you believe, there are cracks in your armour. It was helpful knowing someone close to... point them out for me."
Natasha knew these words were coming, but they hit home all the same. Her defenses were weakened, she had seen too many... unexpected situations lately. She felt off-kilter.
"What, did he tell you about my first time? Not as romantic as I'd hoped."
"Your relentless dedication to sarcasm is admirable, but you are closer than you might think, stumbling in the dark as you are. I know what the archer knows, and he knows more than he lets on. His polite reserve is not one I share."
"What are you getting at?"
"Did you really think you wouldn't have been monitored by your own agency during your first missions? Barton watched and listened to your every move, even the ones you thought were private."
Natasha's stomach dropped, her eyes widening for a moment before she controlled her demeanour.
"S.H.I.E.L.D. remembers the Budapest mission one way, but there are plenty of details only the pair of you share. I'm sure your target was pleased to sodomise a real virgin. A virgin of sorts, I suppose... I've got to say, from his descriptions - you handled the situation marvellously."
Natasha took a deep breath. 'So this is where this is going,' she thought to herself, trying not to think back to the night he was referring to. She would interrupt, but she needed him to take charge of the conversation if he was going to give her anything.
"I know that you've slept with many during your adventures - using all the assets at your disposal. I don't doubt your wares would serve you well during Thurseblot. We used to have the most extravagant of revelries, with all the women - or men - you could ever dream of having. We used to visit Midgard to-"
"Are we really talking about some Asgardian banquet right now? I don't think you're invited to those things anymore," her patience fading as he got off topic, "what with all the throne-usurping, death-faking, world domination attempting..."
Loki paused, a glimmer of anger flying over his face, before that deadly smile appeared once more. Maybe that was a mistake.
"Yes. Where was I?"
"I came here for a -"
"It was a warm summer evening, August, when he entered you from behind, taking your tightest orifice for the first time. The archer felt sorry for you, for a fleeting moment. It didn't take long for your pain to transform, with an arms dealer you hated no less, into something more... pleasurable."
Natasha was growing bored of his lyrical recounting of her own past, but couldn't help but think back to the moment he's talking about. The situation wasn't ideal, the partner neither, there was discomfort... but there was also a feeling of taboo, like she was getting away with something.
***
As her virgin asshole began to relax and better accommodate his hard member, she let herself go a little to make the whole thing go a little faster. She wasn't Natasha, or Natalia, or anyone real - right now she was playing a role, and didn't feel judged at all for letting the feeling rise. It was a new feeling, unlike anything she had ever felt before. He thrust into her once more and she let out an involuntarily moan, the first she hadn't faked since he first penetrated her.
***
Natasha focused, her mind having wandered off for a moment, back to a different time altogether. That was then, this was now - a less fun mission, but a mission all the same. She had no shame to bear about what she did, even with Loki knowing - but Clint? All their conversations and work they had done together, all that time and he had known what she looked like with a dick deep inside her ass?
For a moment, the agent was perplexed to feel a tingling sensation, but not in the same place she had been experiencing it lately. It was anticipation, as if she was back in that hotel room once again. And when her eyes opened, she was.
***
Natasha found herself naked, on all fours, in the warmth of that climate. Her bewilderment gave her pause, but only a moment's pause, as she was reminded exactly what year, what day, what hotel room she was in.
Fingers slid through her red locks, much longer back then, and gripped tightly. Her hair was pulled back, and as her neck arched and her ass was pulled backwards, she felt his hardness against her entrance. With a sudden, forceful thrust, his full length was inside her, all the way to the hilt.
***
Natasha stumbled forward, now standing, fully-clothed outside the chamber. She gasped, almost falling over in her disorientation, but soon centred herself once more. Loki beamed down at her, glad to have surprised her.
"What the hell?"
Her eyes, angry and confused, stared him down.
"Oh, sorry about that. Just a little link still between us - even without my sceptre. It's truly an intuitive tool for my quest."
Natasha knew that something had been up, but now she knew for sure that he had been messing with her head - and still was. But now wasn't the time to worry how much control he had - besides, if he had her betwitched like he had Clint - wouldn't he have her help him escape?
"It is you making my life hell today then?"
"I wouldn't call it hell with this much pleasure, wench. And I can't take all the credit, anyway. I can't do much without my staff in hand, but I can point you in a certain direction, maybe open some doors for you to wander through. You thought of the time you were first entered in the back passage, and I gave you a window into the memory - one you constructed. You stumbled through, I never pushed. And as for earlier, I just led you to confront your own urges and... underlying desires."
"I think you are underselling your role, Odinson," Natasha said, hoping to get a rise out of the fallen prince by reminding him of his family name - and swiftly moving away from the topic at hand.
Loki's demeanour cracked for a split-second, but he stopped himself from correcting her over his lineage. Instead, he took a deep breath, and smirked at the red-headed agent before him. 'Funny,' she thought to herself, 'his smile is as much a shield as it is a spear.'
"What exactly is it... that you want?"
"It's really not that complicated," Natasha replied, taking control of the conversation back, mixing a little truth with her performance. "I've got red in my ledger, I'd like to wipe it out."
"Can you? Can you wipe out that much red? Drakov's daughter? Sao Paulo? The hospital fire? Barton told me everything. Your ledger is dripping, it's gushing red, and you think saving a man no more virtuous than yourself will change anything?"
Loki stood, his patience shattered. No one spoke to him the way this woman had.
"This is the basest sentimentality. This is a child at prayer... PATHETIC!" In anger he spat out his words, enraged at a mortal trying to make a deal with someone so clearly superior - with such disrespect, too.
"You lie and kill in the service of liars and killers. You pretend to be separate, to have your own code, something that makes up for the horrors. But they are a part of you, and they will never go away!"
Loki slammed his fist into the cell's enforced glass window, making Natasha flinch from the sudden impact. But it was too late for Loki, he was already running his mouth, and the next words would send him over the edge, spilling secrets as easily as any mark who believed himself to be in a position of power.
"I won't give you Barton, nor release him from my will. I'll make him fuck you - slowly, intimately, in every way he knows you love. And just when he's brought you to that peak of pleasure you've waited years for him to give, he'll pull out and leave you begging for him to enter you once again.
"This is my bargain, you mewling quim."
As Loki spat these words out Natasha found it difficult to retain her composure. She knew he'd attack her verbally, but not that he'd be so crude. She turned away, choking back fake tears.
"You're a monster" she whispered.
Laughing, Loki replied, "Oh no. You brought the monster."
Natasha instantly composed herself, turned to face him and said with a face free of emotion, "So: Banner. That's your play."
"What?"
