A/N: I watched the first three episodes of Avengers Assemble, and may I just say that never has a show given me OTP feels in the first five minutes before.

(Also I apologize for how long it's been since the last chapter. I blame tumblr.)

"NATASHA ROMANOV, GET BACK HERE!"

Thor, Clint and Peter all cringed when they heard Pepper shout from down the hall. Over the time that they had lived there, each had learned that an angry Pepper was like an angry Bruce: Something to be avoided at all costs. Suddenly, the ventilation grate over the tv opened with a clang, and Natasha crawled out, diving under the table.

"If she asks, I was never here!"

Clint gave his fiancee a bemused look. "Honey, what did you-?"

"Where is she?!" Pepper interrupted as she stormed into the living room.

"Who, Pepper?" Peter asked innocently.

"Natasha!" She rolled her eyes in exasperation. "I've been trying to catch her all morning! Have you seen her?"

"Nope!"

"Sorry, haven't seen her!"

"Yes, she is certainly not underneath the table!" Thor stated with forced cheerfulness, causing the other two men to flinch.

"Thor! The idea is to NOT reveal Natasha's location!" Peter hissed.

Pepper arched an eyebrow, then got to her knees and looked under the table. "You know, I always thought spies were supposed to be good at remaining unnoticeable."

"One, I was short on time, I had to improvise! And two, I seem to remember fooling you and your entire company only a couple of years ago."

Pepper gave her a withering look. "Natasha, come on. It's just a dress."

"Exactly!" She shouted as she got out from under the table. "It's just a dress! I have plenty of dresses! I don't see why I need another one!"

"Because it's your wedding dress! Your wedding day! It's a day that you'll probably only have once!"

"Wait, why did you say 'probably'?!" Clint protested.

Natasha ignored him. "Pepper, we're having a small ceremony at city hall. This isn't exactly the wedding of the century."

Pepper gave her another look, then pulled her phone out of her pocket, tapping it a few times before showing it to her. "There are over fifty people on the guest list!"

"What?!" Natasha snatched the phone out of her hands. "Wh- But- I only planned to invite a few people! How-!" Her eyes narrowed. "Clint!"

The archer shrunk back in his chair. "Heh-heh... I... may have accidently invited a few of our co-workers to the wedding..."

"Fifty of them?!"

"No! I only invited, like, five people at the most!"

"Well, who invited the rest of them?!"

"Fury." Coulson replied casually as he strolled into the kitchen. "Oh, and they aren't technically guests, they're security. We've been receiving threats from A.I.M as of late, and Fury prefers not to take any chances."

"So there's going to be a plethora of armed guards surrounding City Hall?"

"Well, that certainly won't cause suspicion." Peter dead-panned.

"They won't be distinguishable from the rest of the guests," Coulson replied distractedly as he glanced down at his phone. "Also, we've moved the wedding to Central Park."

"WHAT?!"

Coulson smirked at her. "Have fun dress shopping!" He called as he left the room.

Natasha stared after him, rendered speechless with rage for a moment before letting out a shrill scream.

"What's all the yelling about?" Tony asked sleepily as he entered the kitchen. No one spoke for a minute as they stared at him in shock.

"What?"

"Dad, have you by chance looked in a mirror today?"

Tony gave his son a confused look before picking up the toaster.

"Hey! He said mirror, not toaster!"

"Well, would you look at that? I haven't looked like this since I was twenty-five!" He stated happily, ignoring the machine's protests. Tony then froze, his eyes widening in realization as he dropped the toaster.

"Ow!"

"I... I'm twenty-five again." A huge grin spread over his face. "I'm twenty-five again!"

"I... think we've established that, Dad."

"Do you know what this means?!"

"You're old enough to drive?"

"You can pilot the armor correctly?"

"Rhodey will stop laughing at you?"

"No! Well, yes, that's all true, but the main thing is that I," He started proudly, gesturing grandly to himself, "am done with puberty again!"

Peter gave him a withering look.

"Oh, sorry, kiddo."

"Remind me again why we're here?"

"Because Pepper is forcing Natasha to buy a wedding dress, duh."

"No," Clint said lowly, "That's why they're at the bridal shoppe! I want to know why we're being forced to get new clothes!"

"Because I refuse to let you wear a tshirt and jeans at the altar, genius." Tony replied as he glanced around the store.

"I already own a suit!"

"No, you own a sport jacket and some vaguely matching slacks."

Clint glared at him. "Hey, not all of us are billionaires, pal!"

"Uh, Tony?" Bruce interjected. "I get that Clint should look nice on his wedding. I even get that the rest of us should make an effort too. What I don't get is why you dragged us to Milan."

Tony scoffed. "Please. You really think I would let my closest pals and my precious son just wear any old suits?" He turned away from the other men, yelling something in Italian. Within seconds, a sharply dressed man appeared, greeting Tony happily before engaging in what appeared to be a serious discussion.

"What are they saying?" Steve asked Clint in a hushed voice.

"How should I know? I don't speak Italian!"

The other men stared at him doubtfully.

"What? I don't!"

"They're talking about suits." Peter said distractedly while typing on his phone. When they didn't respond, he looked up. Upon seeing the bewildered expressions on their faces, he sighed.

"Dad took me to Italy for a few weeks when I was eleven. It was kind of necessary to learn some of the language."

Just then, Tony turned back to them, a huge grin on his face. "Okay! My good friend Americo here has generously agreed to create some formalwear for you guys!" He gestured towards a hall to the side. "Follow me..."

Steve swallowed nervously as looked in the giant mirror outside the hall of dressing rooms, loosening and tightening the deep red tie repeatedly before sighing and taking it off, undoing the top two buttons of his shirt and looking back in the mirror. He furrowed his brow, then attempted to slick back his hair.

"Heh, I look like Tony..." He grinned slyly as an idea came to him. "Hey there, I'm Tony Stark, genius billionaire playboy philanthropist. I don't play by the rules, babe! Also, I think driving Fury crazy is fun!" He mimicked, forming a gun with his free hand and cocking it.

"First of all, I haven't called someone 'babe' since college," Steve whipped his head around, letting his hair fall in front of his eyes. Tony smirked at him, closing the door behind him. "Secondly, driving Fury crazy is fun. It's one of the few things Birdbrain and I agree on."

Steve swallowed nervously once more, flushing in embarrassment. "U-Uh... I-!"

"Relax, Rogers, I can handle a little mocking. I wouldn't have made it through Peter's 'comedian phase' if I couldn't."

"Peter wanted to be a comedian?"

"He was thirteen. We don't like to talk about it." Tony strolled over to Steve, cradling his chin in thought. "You know, I'm not sure you really can pull off this look." He mused as he buttoned the shirt back up. "But the tie's not really your color, either. Hmm... give me a minute." He called as he ran back out the door.

Steve stared after him bemusedly, then sighed again, turning towards the mirror to look at himself. He screwed up his face, lamenting how out-of-place he looked in the suit.

"I still don't understand why I couldn't wear my old suit..."

"Uh, because it's from the 40's and wasn't preserved like it's owner?"

Steve jumped. "Stop doing that!" He scolded, causing the billionaire to chuckle. Tony strolled over to him again, handing him a new tie, this one a deep azure color.

"Here. Try this one."

Steve obliging took it, fumbling around nervously with the tie until he had fashioned it into a semi-decent knot. "How... How do I look?"

Tony couldn't help but snicker. "I think you might've messed up on the tie, Cap." He replied as he undid the knot, retying it so that it didn't look like it was tied by a nervous sixth grader ten minutes before his first school dance. "There. That's much... uh..."

How had Steve gotten so close to him without him noticing?

They stared at each other for what felt like hours, neither able to speak or break eye contact. Tony swallowed hard, hoping that his face wasn't as flushed as it felt. He also wished that Steve's eyes weren't so blue, or that his lips didn't look so soft, and wow was it his imagination or was Steve getting closer-?

Tony's eyes widened as he felt the other man's lips press gently press against his, his mind going blank momentarily before he thought that Steve's lips were as soft as they looked, not to mention warm. It occurred to him that he should kiss the soldier back, but Steve moved away before Tony could act on that thought.

They remained silent, both unsure of what to say.

Steve was the color of an overripe tomato. "I... I, uh... Tony-"

Suddenly, Tony grabbed him by the collar, smashing his lips against the soldier's. Steve's eyes widened in shock, but after a few seconds he closed them, leaning into Tony and placing his hands on the small of the genius's back, who hummed appreciatively in response.

"Hey, Dad? Thor is having trouble with his tie ag- uh..."

Tony yelped in surprise, pushing Steve away from him and turning to face the newcomer. "P-Peter! Haven't- Haven't you ever heard of knocking?!"

The teen's eyebrow rose, looking back and forth between the two of them. "Uh... am... am I interrupting something?"

"No, no of course not! You said something about Thor needing help, right? Okay bye then Steve!"

"Tony-!" Steve called after him, sighing when he realized that the genius was out of earshot.

Peter looked up at him, then pointed two of his fingers at his eyes and then at Steve. "I'm watching you..." He stated darkly as he backed out of the room, leaving behind a very confused soldier.

Two weeks later...

"Clint, come on!"

"I said no, Stark! No bachelor parties!"

Tony frowned, looking up at Clint and squinting. He never could understand why Clint felt that it was necessary to build a lookout on top of the tower, especially since he had a perfectly good bedroom on the top floor, but since the only answer he had gotten when he asked was a glare, he had decided to just let the man do his own thing. "Why not?

"Because I know you, and I'm fairly sure that if I let you throw me a bachelor party, I'm fairly sure that I'll end up missing while you, Steve, and Thor wake up in a hotel room in Vegas with a stolen tiger."

"Wh- That's the plot of The Hangover!"

"Fine. Then we'll all wake up scattered around the tower, with Peter and Coulson looking at us with very amused faces. You and Steve will probably be all awkward because more likely than not you two will have made out, and there will still be a stolen tiger."

Tony flushed violently. "Wh- Why on earth would Steve and I make out?!"

Clint sighed and jumped down from his perch. "Uh, because you two totally have the hots for each other? It's kinda obvious, dude."

The genius folded his arms and furrowed his brow indignantly. "I-I don't know what you mean by that."

"Oh, please, Stark, don't play dumb, it's not your strong suit." Clint chastised as he flicked Tony on the forehead. "Literally and figuratively."

Tony simply scowled at him in response.

"Don't give me that. We've all seen how you two look at each other. We'd have to be blind not to."

The brunet snickered, causing Clint to give him a bemused look.

"What's so funny?"

"Nothing, I just... A blind superhero? Who'd ever believe that?"

Clint rolled his eyes as he clapped Tony on the shoulder. "Here's an idea: Ask him to the wedding."

Tony flushed again. "Wh-What?! No!"

"Well, who else are you gonna ask? Pepper?"

"No!" Tony looked away. "I asked her this morning. She's going with Happy."

More eye-rolling, then a sigh. "Just... ask him. What's the worst that could happen?"

Tony opened his mouth to speak, but Clint stopped him.

"That was rhetorical."

"Just set that down over there, thanks!" Pepper called out, checking another thing off of her list. The conservatory garden area of Central Park was absolutely swarming with SHIELD agents who were helping to finish up setting up the wedding, the planning of which Pepper had taken into her own hands. Why they wanted to have the wedding so soon, she had no clue, but whatever.

Someone tapped her on the shoulder, making her look up from her StarkPad and whip her head around, smiling when she saw who it was. "Oh, hello, Steve. Just putting the final touches on the weddi- HEY! Careful with that, it's breakable!"

Steve smiled nervously. "Uh, okay... I was, um, hoping I could ask you for some advice?"

Pepper blinked. "Uh, okay... why me, exactly?"

The soldier rubbed the back of his neck apprehensively. "Er, well, it's... it's kind of about Tony, and since you seem to know Tony better than anyone..."

Pepper sighed, rolling her eyes. "What did Tony do this time?"

"Nothing, nothing, he just..." He mumbled something under his breath.

"Sorry, I didn't quite catch that- Sweetie, while I appreciate the ingenuity, the napkins are supposed to be folded into swans, not katanas."

"Tony k..." He mumbled again.

Pepper sighed, turning to face the blonde man. "Steve, if you don't speak up, I can't-"

"Tony kissed me!" Steve blurted out, his face reddening.

Pepper stared at him, rendered both slack-jawed and speechless by shock. Behind her, one SHIELD agent reluctantly handed a twenty dollar bill to a significantly happier agent on her left.

"Tony kissed you?!" The redhead asked incredulously once she regained the ability to speak.

"Er, well, technically I kissed him first."

The bill was reluctantly handed back to its previous owner.

"Why?!"

"I don't know!" Steve cried out. "I didn't really think about it before I did it!"

Pepper sighed, pinching the bridge of her nose. "Well, do you have... feelings for Tony?" She asked, not quite believing that she was having this conversation with Steve of all people.

"No!" Steve replied indignantly before flushing and shrugging defeatedly. "Yes. I don't know!"

Pepper opened her mouth to reply, but then stopped, looking around her. "One second, sweetie." She said warmly as she turned away from him. "What are you people doing just standing around?! The wedding is in two hours! Get to work!"

The agents scattered around the garden immediately, and Steve had the weirdest sense of deja vu. Pepper turned back to him, sighing once more.

"Look, take it from someone who used to date Tony: He is terrible at feelings, like, seriously horrible with them. He's basically the most emotionally constipated man I know. When exactly did this kiss take place?"

"Uh... about two weeks ago, when Tony dragged us all to Italy to get suits."

"Ok, and have you two talked much since then?"

"Not... really." Steve admitted, thinking back to all the awkward conversations about the weather at breakfast and the purely professional communications during missions.

Pepper gave him a tight-lipped smile and clapped him on the shoulder. "Congratulations, Steve, Tony has feelings for you!"

"Wh- How can you tell?"

"Because if he didn't like you, he'd either act like nothing happened, or make rude jokes about it, because he is a huge dick. Just... give him a little time, alright? If I know Tony, and I do, he'll want to make the next move."

Steve smiled at her gratefully. "Thanks, Pepper." He turned around, heading towards the entrance. "I'll see you at the-"

"Oh, no," Pepper said as she grabbed the collar of Steve's shirt, "No way, soldier boy. I just gave you romantic advice on my ex-boyfriend, the least you can do is stay and help out."

"Dearly beloved, we are gathered here today..."

Clint and Natasha glanced furtively at each other, both grinning hugely. Despite all the obstacles and difficulties leading up to this moment, now that it was finally here neither of them could say that it all wasn't worth it. There was no doubt in either of their minds that this was right, that this was how it was supposed to be, with them up on the altar surrounded by their friends and teammates.

"If anyone has a reason as to why these two should not be wed, speak now, or forever hold your-"

Suddenly, a huge rustling came from beyond the trees, followed by a deafening roar.

"The fuck...?" Tony started, ignoring the disapproving glance from his fellow groomsmen (mainly Steve). That didn't last long, though, because barely a second later a scream was heard at the back of the seating area, followed by Fury shouting and guns being fired as the Lizard tore down the aisle.

"Why?!" Clint demanded, throwing his hands up in the air angrily.

"Clint, we can question this later," Steve yelled over the gunfire as he ran down the steps, retrieving his shield from what had been designated as a weapons pile. "Right now, we have to make sure that thing doesn't get out of here!"

Clint simply stared in shock at the scaly beast, prompting Natasha to roll her eyes and drag him over to the weapons. "Come on, Clint!"

"Aren't you even a little bit upset about this?!" Clint shouted as he picked up his bow and arrow and fired it directly into the monster's open mouth, where it proceeded to explode and cause the Lizard to roar in pain. "I mean, he kinda just ruined our wedding!"

"Well, yeah, but there's just one thing: I happen to like being alive!" Natasha called as she grabbed Peter's arm and pulled him off to the side, leading him through the trees into an enclosed space. "Get going, webhead, I'll cover for you," She whispered through gritted teeth. The teen grinned at her, running off and ducking behind a bush. The bride rolled her eyes with a grin on her face, kicking off her shoes as she ran back to the battle, glad once again of her choice to have a simple, flowy gown.

"Natasha! Have you seen Peter?" Tony asked worriedly as he landed next to her.

"He's fine, I got him to safety!" Natasha yelled cooly. Technically it wasn't a lie; Peter was safe at the moment, after all.

"Good." A blood-curdling scream came from where the Lizard was standing. "Because his girlfriend is kinda in peril."

"Let me go, you giant... scaly... thing!" Gwen demanded from her place in the monster's giant claw, kicking as hard as she could. Suddenly, the monster's face was covered in web, causing him to roar in panic, anger and confusion.

"Hey! Get your claws off of her, you damn dirty reptile!" Peter quipped as he swung towards the monster, kicking him right between the eyes. The beast howled in pain, releasing his captive involuntarily. The webhead shot another line of web onto the Lizard's now- raised arm, catching his girlfriend before she could hit the ground.

"Well, hello there, gorgeous." Peter said as they landed.

Gwen's eyebrow rose as she gave him an unamused look. "Really?"

"No?"

"No." She affirmed.

"Sorry. I'm not very good at talking to pretty girls."

"I've noticed," Gwen replied, grinning.

"Hey! Webhead! Quit flirting with my son's girlfriend and help already!" Tony called out before blasting the beast with a laser.

"Oh, um, right! You guys keep doing what you're doing, I'll get the civilians to safety!" Peter yelled back, grabbing Gwen and swinging away.

"Okay, that's- Wait a second..."

"Where are the other civilians?" Gwen asked when they had landed on a nearby building.

"Oh, they all left before I got here." Peter replied. "There really weren't that many of them; most everybody at the wedding was a SHIELD agent or superhero."

"Ah." Gwen folded her arms. "So... your dad?"

Peter rubbed the back of his head sheepishly. "Y-Yeah... I haven't... exactly-"

"Told him? I can tell."

The webhead sighed. "I know, I know, I should tell him, but... I've had a lot of stuff going on lately! What with my mentor turning out to be the Lizard, and school, and..." He paused, noticing the disapproval on his girlfriend's face. "And you're not going to accept any of my excuses, are you?"

"Nope." Gwen replied, shaking her head.

Peter sighed again. "Fine, I'll tell him. Tonight," He promised.

Gwen smiled. "You better get back there." She walked over to him briskly, pulling up the mask over his nose and kissing him quickly. "Good luck."

"Thanks." Peter said, grinning from ear to ear as he pulled his mask back down.

As he swung away, he wasn't aware that they had been seen.

"Oh, no..." Tony whispered, incredulous at what he'd just seen.

"Peter?" Tony called out tentatively when he got home later, already dreading what he had to tell his son.

The teen peeked into the living area, his stomach turning nervously. "H-Hey, Dad! Glad to see that the Lizard didn't get you!"

Tony looked at him, confused. "The... Lizard?"

"You know, the scaly guy! The... media calls him that?"

"Oh." Tony rubbed the back of his neck while Peter looked at the floor.

"There's something I need to tell you." Both said simultaneously, each surprising the other.

"Y-You go first." Peter said, gesturing with his hands.

"Okay, um..." Tony blew air through his lips, then inhaled deeply. "There's no easy way to say this, but... Peter, Gwen's cheating on you."

Peter's eyes widened in shock as he felt his heart drop into his stomach. "Wh... What?" He managed a bit breathlessly, feeling winded.

"Earlier today, when the Lizard attacked the wedding, I saw her with Spiderman," His father explained, placing a hand on his son's shoulder in sympathy. "I'm so sorry, Pete."

Peter breathed a sigh of relief. "Oh, I knew I should've gone first."

Tony gave him another confused look. "Come again?"

"I... I probably should've told you this a while ago, but..." Peter took a deep breath. "Dad, I'm-"

Suddenly, Peter's phone rang, interrupting his big confession.

"Uh... one second." He said as he fished his phone out of his pocket. "Hello?"

"H... Hi, Peter." Gwen said in a shaky, hushed voice.

"Hey. Listen, I can't really talk right now, I'm kind of in the middle of something-"

"Yeah, um, so am I. Sort of why I'm calling, actually."

Peter furrowed his brow in confusion. "What are you-?" He froze mid-sentence as he heard a low growl. "Gwen. What was that?"

"The Lizard."

"WHAT?!" Peter shouted, startling Tony. He turned to his father, giving him a weak thumbs up. "Where are you?"

"I'm in the lab at Oscorp. Seems Doctor Connors came back for his-!" A huge roar came from the other end, followed by Gwen screaming and the sound of something being fired, which in turn was followed by a pained growl.

"What the hell was that?!" Peter cried out.

"Laser gun. He got too close, I panicked!"

"Wait, you fired a laser gun?"

"Y-Yeah?"

"... That's pretty hot, actually."

He could almost hear Gwen roll her eyes. "Peter, I think he's planning something. You remember that antidote you asked me to make?"

"Yeah?"

"It's finished, but I can't get to it from where I am, and I think he's getting ready to do that thing with the lizard DNA. I need you to get over here and distract him so I can get to the antidote."

Peter nodded fervently. "Okay. Just... hang tight, and try not to get caught."

"Okay. Hurry."

Peter hung up, turning to his dad. "I've got to go. Gwen's in trouble, and-"

"Peter, what's going on?" Tony interrupted in a demanding voice, grabbing his son's arm.

The teen grit his teeth. "Dad. Let go."

"No, no, not until you tell me what's going on!"

"Dad," Peter repeated, trying to keep a level tone. "I'm not asking."

"Neither am I. Tell me what's going on or so help me-!"

Peter broke away from him, pushing his father into the wall and shooting enough webbing to trap him there.

"What the-?!"

"I'm sorry!" Peter cried out, holding his hands up. "I'll explain everything later, but right now Gwen needs me!" With that, he dove behind the couch, changing into his costume frantically.

"Peter Benjamin Parker, you tell me what the fuck is going on right now or I swear I'll... I'll..." Tony's angry tirade faded away as Peter got out from behind the couch, pulling his mask on.

"Jarvis, open the window." Peter demanded coolly as he approached the glass. As it opened, Peter turned back to his father, who had the most shocked look on his face that Peter had ever seen.

"P... P-Peter..." Tony stammered. "P-Peter, what-?"

Peter turned away, looking out the open window. "I'm sorry, Dad." He whispered as he shot a line of webbing out, latching on to a nearby building and swinging away.

"... Spiderman?"

A/N: Hooo boy. Not exactly to plan, huh?

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