"Wait, you mean you all have my soulmark?" Tony asks.

It's movie night in the Tower, and even though they always start off watching something, most of the time it trails off into conversations and chatter. On the more notable occasions there have been fistfights, and, once, even a declaration of love. Overall, it's always a very interesting night.

"Um, I mean, this is it, right?" Steve asks, pulling down the collar of his shirt just enough for Tony to see, yup, that's his soul mark right there on Captain America's chest.

"Yeah," Tony says, playing it off as cool as possible. He's had Steve's trademark shield on his back ever since he was born, but it was one thing to be someone's soulmate and another thing to know it was reciprocated. "That's it."

"Does this mean you have mine?" Steve asks, and that's where shit hits the fan.

Tony sighs for a moment and then decides to bite the bullet. After all, what's the worst case scenario of being the soulmate of every Avenger? Forcing his brain to stop actually answering that question – it was rhetorical, goddamnit – he pulls his shirt off in one fluid motion.

"Holy shit," from Clint is the only sound from any of the others for a long moment.

Tony's torso is scarred and bruised from lab accidents and other, worse, things, but the only thing anyone's focused on are the soulmarks. Half-twisted in his seat so he can see them all, Tony doesn't know what to think of the silence. Is it good? Bad? Are they just surprised, or disgusted?

He turns around to face them, not bothering to put his shirt back on, and then Steve surprises him and follows suit, stripping off his own shirt.

Tony is momentarily shocked because there's Steve Rogers, Captain America, national icon, shirtless in front of him, but he recovers soon because not only is there his mark on Steve's torso, but there's Thor's and Clint's and Bruce's and Natasha's. There's also a red star on his left shoulder, but Tony decides to ask about that later. "Wow."

It's all he can say, all he can think for a long moment, because there it is. Proof he isn't the only strange one is spread out all over Steve's chest and back.

"I didn't have all of them before I woke up from the ice," Steve explains, and, yeah, that would make sense why the footage of Howard's experiment only showed the star.

It's silent for a moment, and then Natasha takes off her shirt and Tony momentarily loses the capacity to think.

She has just as many scars as Tony, possibly more, but the soulmarks are there too. She shares the red star with Steve, and there's the symbol of a handgun on her lower back, but all of the Avengers are represented.

Tony can't come up with anything to say. Having Steve shirtless in front of him is one thing, but Natasha too? Then Clint strips, and Tony feels sure he's died and gone to heaven. The archer is heavily muscled, and lines of definition stand out on his arms and shoulders. Steve, of course, is the quintessential male standard, but Clint isn't too hard on the eyes either.

At some point when Tony's distracted, Bruce and Thor strip as well and soon all six of them are sitting shirtless in a circle.

Thor has more marks then the rest of them, but he's been alive for longer and Tony can't muster up any more jealousy than he can for Steve, or Natasha, or Clint. He clears his throat again to speak.

"So, we're all soulmates?" It's obvious, but he can't think of anything else to say that wouldn't be either awkward or inappropriate.

"Verily," Thor answers with a nod, looking Steve up and down. With the expression the thunder god has on, Tony doesn't feel so bad, and then he sees the way America's golden boy is eyeing Natasha, and he really doesn't feel bad.

"It – it would appear so," Bruce stammers, a bit nervous.

Natasha scoots across the circle to sit between him and Clint. "Don't worry," she says, much more gently than Tony would suspect she could. "It's not a bad thing."

"Indeed it is not," Thor says. "On Asgard it is an honourable thing to be soulbound to many!"

"So, is this normal?" Steve asks, gesturing between the six of them, and it isn't just Tony's eyes following the movement of his arm.

Thor shrugs, in a manner Tony takes to mean 'maybe, maybe not' and Natasha grins.

It's not her dangerous grin, this is one that's not threatening at all, happy even, and Tony thinks it isn't a bad look on her at all. "We're soulmates," she says, and she sounds amazed and contented all at once.

Before anyone can register the motion, she's sitting in Clint's lap and they're kissing. It isn't intended to make anyone upset or awkward and after a couple seconds they stop. Natasha stays where she is, her legs in Bruce's lap and smiles at Clint. "We found our soulmates," she says to him, and Tony wonders if those are tears in the corners of her eyes.

"Yeah, we did," he says back.

Tony's wondering what do now – is there a precedent for six soulmates all finding each other by stripping? – when Thor leans over from where he's sitting next to Steve and kisses the super-soldier.

No one says anything, but everyone's staring at the two of them. Tony can't quite believe what he's seeing – this is Captain America kissing Thor – and neither can anyone else, judging by the silence.

It's a gentle kiss and not rushed and both Thor and Steve are smiling when they pull away. Clint is the first to find his voice.

"Is this a thing, then?" he asks, gesturing between the two of them. "Because I don't care if it is, but, damn is it hot!"

Natasha smacks him on the arm, and he makes a face. "Come on, Nat, it's true!"

"Nay," Thor answers, putting his arm around Steve's shoulders. "I harbor no previous affection for Steven Rogers; only the short typically shown for soulmates."

And there it is. Tony's pretty sure Bruce is going to faint, and from the heat in his own face, he's turning an interesting shade of red. He won't deny that the possibility was there, but he never imagined it would just be stated out in the open like that. Though, if anyone would, it would be Thor.

"Well," Bruce begins, "this is an atypical situation – "

Natasha cuts him off by climbing out of Clint's lap and kissing the scientist straight on the mouth. "Our whole lives have been atypical," she says after a minute, looking around the circle and daring anyone to disagree.

Tony is very aware, suddenly, of the effect all this kissing is having on his body, and he clears his throat. "So, is anyone going to say what I think we're all thinking…" he says, letting the sentence trail off.

"Orgy," Clint states, smiling wickedly at Tony.

Bruce makes a surprised noise, but Natasha starts kissing him again and he doesn't complain. Clint watches the display get more heated, one hand slipping into his jeans.

"Is that what you were thinking?" Steve asks, an inch from Tony's ear, and Tony jumps.

"Um, what?" he asks, his train of thought completely derailed by Steve's nearness.

"Tell me if you want me to stop," Steve murmurs and then he's kissing Tony.

It's both nothing like what Tony expected and everything like it all at once. Steve is fairly experienced, which Tony wasn't expecting from someone who grew up in the forties. He tilts his mouth against Tony's, asking permission and Tony opens his mouth just a little bit. Steve takes the invitation, slipping his tongue inside and then it's all heat and passion and metaphorical fireworks.

Tony didn't think he'd ever find someone that could make his mind shut off, but when Steve pulls away, his lips slightly puffy and red, Tony realizes he hasn't been aware of anything that's been going on. "Damn," he mutters, staring up at Steve.

"Yeah," Steve grins, suddenly shy again, rubbing the back of his neck. "That's usually the response I get."

Normally, a sentence like that would be worth expanding on, but Tony's pants are getting really uncomfortable, and he has a feeling Steve's are too, if the tent he's showing is any indication. "You want any help with that?" he asks seductively.

Steve grins, his eyes already half-lidded with desire and reaches out to palm Tony. "You think you can take me?" he asks, the words almost a challenge.

Tony gives him a sharp, short laugh and pulls his head down for another kiss. This is one is hot and heavy, all of the desire and frustration Tony's felt ever since his met Steve poured into it. Steve breaks it off and nips at Tony's collarbone, hands going to the button of his pants.

As Steve slips his hands into Tony's jeans, the engineer starts to see stars. He never thought something as simple as a handjob would be able to get him off, but, damn, he's seconds from coming and they haven't even gotten to the good stuff.

Over Steve's shoulder he sees Natasha kneeling on the floor with Clint inside her from behind; one of her hands on her clit and the other one tangled in Bruce's hair. Bruce doesn't seem to mind, his normally placid demeanor abandoned in favour of gasping and moaning for more of Thor as the thunder god pounds into him.

"Faster," Natasha gasps as Clint's hands wrap around to play with her breasts, then, "Fuck, yes, there!"

"Hey, eyes on me," Steve says and Tony can't tell whether it's dominating or not, but he obeys anyway.

It almost feels weird, taking orders from the super-soldier after he made such a big deal of it when they first met, but Tony barely starts to think about it before his pants are down and Steve's hand is closing over his cock and then there's nothing but sensation.

Normally Tony is the one giving, fucking into his partner until they're begging for more, but this time he's the one crying for more from Steve, asking and asking, even as he kisses him again and again, on the mouth, on the shoulder, on any skin he can reach.

He falls forward as he comes all over Steve's hand, suddenly boneless. "Fuck," is all he can say for a moment, gathering his breath. He sits up and Steve makes eye contact with him suddenly and then, deliberately, licks his hand clean one finger at a time.

It's the hottest thing Tony's ever seen, even if he isn't sure why and then he's kneeling in front of Steve, undoing his pants. "Damn, the serum worked," is all he can think to mutter.

Steve laughs, his voice low, and he runs his hand through Tony's hair. "What are you waiting for?" he asks, and Tony's heart skips a beat.

He isn't sure why – it might be the soulbond – but this is the most meaningful sex he's ever had, he's sure of it. There's a cry from across the room, low and feminine, and he registers Natasha faintly in the back of his mind, and then all that he can think about is Steve's cock.

He's in the middle of giving the best blowjob he can while Steve's hand in circling through his hair and all he wants to do is spread his legs and beg for Steve the way Bruce is begging for Thor, when suddenly another hand reaches from behind him and starts to stroke him off.

He almost chokes, and there's a laugh as Natasha apologizes. Her strokes are firm and smooth, and Tony nearly comes in the middle of trying to make Steve come. There's a muffled curse from above Tony and Steve's hand stutters to a stop and clenches in Tony's hair.

It's oddly hot – Tony's never been into the whole hair-pulling thing before, but this would have brought him to his knees if he wasn't already on them – and then Thor's voice reaches him from somewhere above Steve's head. "Relax," the Asgardian instructs, and then Steve's keening low in his throat and coming in Tony's mouth.

Natasha speeds up and then Tony's slumping forward onto Steve's chest, his second orgasm ripping through him. This one is just as strong and mind-blowing and he's absolutely convinced it's the soulbond, because, as his head touches his own soulmark on Steve's chest, a tingling sensation runs through him from head to toe. "Fuck," he whispers again.

Across the room, Bruce is also coming and so is Clint from the sound of it. "This is amazing," the archer gasps, and Bruce gasps in agreement.

Tony sits back in Natasha's lap, and she presses an oddly tender kiss to his hairline. "Moy malen'kiy kotenok," she whispers, and under other circumstances Tony would have been upset at being called a kitten, but it's an apt comparison right now, so he closes his eyes and lets her run her hands through his hair.

"I love you," he murmurs, and he doesn't know who he's talking to – if it's all of them or one of them in particular – but he doesn't care either.

"I love you too," Natasha says back, and this is a side of the notorious Black Widow few have ever seen and lived to tell about.

Bruce walks over on shaky legs and collapses against Natasha's side, his head on her shoulder. She takes one hand out of Tony's hair and tilts Bruce's head up to kiss him on the lips. It's reminiscent of the kiss between Steve and Thor that started everything, a soft, kind give and take with no expectations attached.

Clint sits down on Natasha's other side, and then all four of them sit in a pile watching Steve and Thor in front of them. Both the demigod and the super-soldier have extreme stamina, but it's still Steve who comes first. Thor follows him soon after, fingers digging so deeply into Steve's hips that Tony suspects there will be bruises in the morning.

Tony's refractory period is almost over, though, and he's starting get hard again. Clint notices, and looks over at Tony before getting up and kneeling in front of him. Tony moves down until only his head is still resting in Natasha's lap. "It's okay," she says, even though they both know Tony wants this.

Clint starts slow, inserting one finger into Tony and rubbing in a slow circle as he captures Tony's mouth in a kiss that's somewhere between domineering and crushingly soft. His lips are velvety and his tongue is almost as gentle as his fingers.

Tony whines, moving his hips up to meet Clint's finger, and the archer obligingly adds a second. Tony isn't a stranger to male-on-male liaisons, and while Steve is Adonis, Clint is the type of effortless sexy that makes it look like he's never trying too hard, even when he is.

Natasha recognizes it, and looks at Clint with undisguised lust before turning her head and kissing Bruce again. She isn't going easy on him, and Bruce doesn't seem to mind from the way his cock is hardening.

Tony manages to take in the details, even though his vision is almost whiting out with the way Clint is so close to hitting his prostate. "Fuck," he gasps, the only word he's been able to conjure for a while.

Clint smirks. "As you wish," and then he's no longer kissing, instead inside Tony and wow if Tony hadn't known he was here in the Tower with his head in Natasha's lap and Clint's hands on his waist, he would have thought he'd died and gone to heaven. If Steve's handjob was fireworks, this is bombs going off inside his skull.

He's able to hold it off for long enough to Clint's orgasm to hit, and then he's spilling all over his own stomach, painting Bruce's soulmark white.

"I love you," he mutters again, but now there's no mistaking who he's talking about from the way he's staring at Clint. He pushes himself up on shaking arms and kisses Clint again.

Both Steve and Thor look like they're ready for another round, and from the expression on Natasha's face, so is she. Standing up, she walks over to them. Thor kneels in front of her and starts eating her out with enthusiasm, while Steve moves behind her.

Tony wouldn't have pinned Steve as a guy who knows why anal is, much less double penetration, but, before this evening, he didn't think Mr. I-Grew-Up-in-the-Forties even knew how to kiss a guy, much less be good at it. Chalking it up to life being full of surprises, he moves Clint to Bruce and brings the scientist in for a kiss.

Bruce's lips are drier than Clint's, and he's also shyer than the archer, but he makes up for it in the way his hands skim feather-light over Tony's skin. Bruce runs his fingers over Tony's scars, both the old ones from Howard and the new ones from Afghanistan and after. He stops at a few He of them, but Tony shakes his head and slips his tongue forward a little.

Behind them, Clint moans, apparently enjoying the scene, and Tony pushes forward towards Bruce. He takes Bruce's cock in his hand and begins to stroke, bringing him to full hardness in only a few minutes. Tony hasn't figured out whether the quick refractory periods that they all seem to share are the soulmate bonds or not, but he doesn't really care.

Clint comes with a gasping curse a few minutes later, and so does Natasha, rocking forward into Thor's gasp. Steve moves with her, crying her name in what Tony assumes to be Gaelic as he comes too. It's beautiful, and Tony allows himself a moment to enjoy the sight while he kisses Bruce again.

"Ready for round two?" Clint whispers into Tony's ear, and Tony nods desperately, because who is he to turn down sex with his soulmate? Bruce comes on his hand as Clint pushes into him in a moment of synchronization Tony wishes he could fully appreciate. Instead, he gives in to his urge and comes all over himself and Bruce.

Natasha, who's giving an excellent blowjob to Steve while Thor is pushing into him from behind, winks at Clint and signs something that makes him start to curse and then bury his teeth in Tony's shoulder as he comes.

Like the hair-pulling, it's not something Tony's usually into, but everything this night is just so fucking hot he can't stop himself from winding his hand through Bruce's hair and pulling him for another kiss.

Apparently Tony's been too busy to realize it, but when Thor comes, it's with a clap of thunder that shakes the Tower windows and a bolt of lightning that streaks across the otherwise clear black sky. He sits ungracefully, pulling Steve and Natasha down with him and all three of them are sitting on the floor when Steve comes for the last time.

It's the last orgasm of the night, as, apparently everyone is too sexed-out to handle any more. They stare at each other, hands resting on bodies and in hair and hands, just enjoying the company. Something has changed in the room; they can all feel that the tension has dissipated and now there's a sense of togetherness.

Steve's the one to break the silence finally, his hands carding through Natasha's hair from where he's sitting on Thor's lap. "I suppose we can tell Fury we're an actual team now."

"Don't tell him how," Clint drawls, laying on the ground with one hand on Tony's thigh. "He'll probably ask to join."

There's a startled silence, and then Natasha starts laughing so hard she can hardly breathe. It sends Thor and then Clint into gales of laughter after her, and from there it spreads to the rest of the Avengers. It's wonderful, Tony registers somewhere in the back of his mind. If this is what being a team is like, he never wants to give it up.