Hello all,

So I finally finished another story, and here it is! Since the new story options are limited, I'll put the details here.

This is an Avengers/Captain America:TWS/Amazing Spider-man crossover. The Avengers bit is just for the characters, but the events of TASM are mentioned later in the story. As for CA:TWS - this story is sort of a pre/post fic with what would/could have happened if Bucky/the Winter Soldier wasn't only hydra's puppet and cared about someone he met without any help from hydra or Steve. It'll make sense later, I promise.

Reviews/constructive criticism always welcome.

Hope you like it :) here's chapter 1.

It had taken over a year for this moment to finally be able to come to pass, and now that it was happening, Steve was so happy he was actually tongue tied. The adoption process had finally gone through and now he had 4 year old Peter Parker by the hand, leading him into the Avengers tower where he lived with his fellow teammates. He crouched down when they were in the elevator so that they were closer to the same height, and he couldn't help but marvel at just how tiny Peter was.

"Are you ready to meet the rest of my family?" he asked, and Peter looked both nervous and excited.

"Are they your real family?"

"They're family like you and me are gonna be family." he replied, and watched the glimmer of hope sparkling in the little boys eyes.

"Are they really superheroes?" was the boys next question, and Steve gave a wide smile.

"You'll have to tell me, buddy." the elevator came to a stop and he stood back up, feeling the tiny hands grab onto his pant leg. He smiled, putting his hand on Peter's head, carefully leading him into the common room. The whole team was waiting; Tony and Pepper were standing together discussing something in low voices, but the moment they walked in they looked over and smiled in greeting. Natasha and Clint were standing together at a table covered in food clearly meant to welcome them back, and Thor was standing with them, giving a broad grin when he saw them.

"My friend! Welcome! And welcome to you as well, little one. It is an honour to include you in our family." Peter stood in complete shock next to Steve and when he looked up at Steve, completely confused and unsure, Steve crouched back down to his level only to lift him up, gratified when small arms wrapped around his neck.

"Come on, I'll introduce you to everyone, and once you've said hello, we'll have some cake and then I'll show you your new room."

"I get my own room?" was the four year old's excited attempt at a whisper, so of course, everyone heard. Steve smiled serenely at the excited child in his arms.

"Of course. Right down the hall from mine. I'll show you everything later." Peter nodded and then looked far more excited to meet everyone, looking first to Thor since he'd greeted them first.

"Peter, this is Thor."

"Hello," the little boy greeted shyly, clinging to Steve, but he gave a happy little smile that soon turned sly as he asked a question. "Are you a real god of thunder?" Thor let out a booming laugh, and Tony's surprised laughter met them from behind.

"He really knows how to work these events." Tony joked, even as Thor nodded his head in assent.

"I am indeed as you say."

"Can I see?" at that, Steve laughed, giving the boy a quick squeeze of a hug.

"Maybe later, okay?" Peter pouted for another moment, but then his eyes were scanning the room, taking in all the faces. His gaze stopped on the two assassins.

"You have the bow and arrow." he said to Clint, almost a question, and so Clint nodded. "Can I see it?"

"Sure, kid." as if he'd been waiting for such a question, the bow appeared as if out of nowhere, and he held it forward as Steve obligingly set Peter down so he could cautiously hurry over.

"Wow. Do you shoot real arrows?"

"Yeah, but they're pretty sharp and Steve would kill me if you hurt yourself on one of my arrows." Peter looked sheepishly back at Steve, but there was something else there, something Steve decided to ask the boy about later. Before he could say anything though, Peter had turned to Natasha.

"You're really pretty." he said immediately, and she gave a surprisingly soft smile.

"Thank you."

"And I saw you kick the bad guys butts. It was super cool." Natasha gave a startled laugh and the smile warmed.

"When you're older, I'll teach you how to do that too." Peter gave an excited little laugh.

"Really?" then he looked at Steve, smile filled with hope. "Can I learn?"

"When you're older, just like she said." Peter's smile grew impossibly wider and he ran back over to hug Steve, little arms squeezing as hard as they could.

"Thank you, thank you, thank you." then he was off again, this time rushing over to Tony, no longer uncomfortable in the room. "Hi!" he greeted, and Tony found himself grinning right back. Luckily, Pepper didn't seem nearly so tongue-tied because she immediately cut in.

"It's so nice to finally meet you, Peter. Steve's been telling us all about you for weeks." nobody missed how Peter seemed to unconsciously gravitate closer to her.

"He did?"

"Yes, he did. He's been so excited. He couldn't wait for you to join our little family."

"Really?" the vulnerability behind the question was missed on nobody, and Steve felt his heart swell at the hope in his voice.

"Really. In fact, we heard you're pretty clever for your age, and Tony was really excited to show you some of the things he's invented. He thought you'd like to help, isn't that right, Tony?" she looked over to him, passing him the subject when it was more in his area, and Tony rolled with it.

"It's true! See I've got this plan for a new water gun because Thor accidentally broke the last one, and-" Steve tuned out the rest of the words since he knew Pepper would keep the subject safe and he couldn't really understand any of the references to technical stuff anyways. Instead, he marvelled at how well Peter already seemed to be adapting, and how excited he seemed, shooting little glances back at Steve every once in a while, as if checking to make sure he was still there. Steve just smiled at him each and every time, and Peter would flash a smile in return before turning his attention back to Tony who he listened to with rapt attention. That was when Steve noticed that their little group was missing someone.

"Where's Bruce?" he asked no one in particular, though he looked towards the two assassins so as not to disturb the conversation between Peter and Tony which had become very animated and now included the two of them huddling over a tablet while Tony made wide gestures to express himself. Peter's motions weren't as large, more reserved, but Steve could only imagine that that would change once Peter was fully confident around the other adult. Natasha just nodded towards Peter.

"He was nervous." Steve frowned but he knew he couldn't leave with the way Peter kept shooting glances at him. Obviously sensing his dilemma, Natasha pushed off the table. "I'll get him." she slipped out of the room without Peter even noticing and moments later, the elevator doors swished open, Natasha strolling out, Bruce on her heels, nervously fixing his glasses.

"Steve." he nodded, coming to stand next to him, fidgeting as his eyes zeroed in on Peter, giving a nervous smile when he saw the boy's attention had focused on him as a newcomer. Steve watched Peter lean in to ask Tony a question, saw Tony glance towards him and Bruce and then whisper back. Whatever he said had Peter's face softening all over, and he gave the sweetest smile before carefully making his way over to them. Though everyone was talking amongst themselves, Steve could feel their attention was focused on what was happening with Peter and Bruce.

"Hello. Mr. Stark told me that you're a doctor and that you do-" he looked back at Tony, a look of bewilderment on his face as he was shooed on by the genius and turned back to Bruce, face scrunching up as he tried to repeat the sentence word for word. "Really awesome science stuff." he managed to repeat, and then beamed up at Bruce who just looked back down in his with a bemused smile on his face.

"I am a scientist, yes." Peter was immediately bouncing on the balls of his feet, a happy smile in place, as if this admission meant that the doctor was comfortable around him.

"I want to be a scientist when I grow up!" he proclaimed excitedly, eyes shining. "My dad was a scientist." he went immediately pale, looking at Steve, but before Steve could even react, Bruce was speaking.

"It takes a lot of work to become a scientist. Are you excited to be starting school in the fall? I hear you and Steve went to see schools together. Did you have a favourite?" Peter nodded excitedly, though he still glanced nervously at Steve.

"We did! And we got ice cream!" the boy blushed, obviously realizing that hadn't been Bruce's question, but the doctor just laughed.

"I bet that was the most exciting part of the trip. Most of the schools probably seemed the same, didn't they? They don't really get exciting until college or university." the doctor admitted, and Peter nodded sagely, eyes wide as if he understood, clearly hanging off every word.

"If you're a scientist, why do they call you a doctor?" Peter asked, honestly curious, and Bruce was obviously quite charmed by the boy because he answered with an easy smile.

"You know, Peter? I don't really know why everyone ends up being a doctor if they reach my level of education. But when I find out, I'll let you know." Peter gave a pleased smile and then looked towards the table.

"Do you want some cake?" Peter asked, and Bruce blinked in surprise. "I bet it's really yummy." Bruce just gave the boy a warm smile in response to his hopeful one.

"I would love some. Would you like a piece as well?" Peter nodded so hard it looked like his head could come off, and just like that, he darted forward to take Bruce's hand and tugged him towards the table. Again, the boy surprised him, but Bruce just gave another smile, obviously as gone on the boy as the rest of them were. When they were at the table, Peter ran back to get Steve, tugging him to the table as well.

"Can you cut the cake?" he asked, beaming up at him, and Steve gave in, knowing he would probably end up giving in more than he should, but remembering how pale the boy had gone when he'd accidentally mentioned his biological parents, he thought that was probably okay.

By the time the welcome party was over, Steve was carrying Peter downstairs, the boy fast asleep in his arms. He was worrying about whether or not he should put the boy in his own room or not, since no matter where he was, it would be somewhere unfamiliar, but the question was taken out of his hands when Peter stirred with the sound of the elevator. He went tense first, and then his eyes fell on Steve and he immediately, and unconsciously relaxed.

"Where are we?"

"This is our floor. Where we live in the tower. We've got the whole floor to ourselves."

"Awesome." Peter said, excited and exhausted, eyes already drooping again.

"Are you ready to see your room?" Peter didn't answer right away, but when he finally nodded, Steve pushed the door open to the room he'd had Pepper help him design.

"Wow, this is my room?" the boy asked, looking around in sleepy wonder, and Steve nodded.

"It is." then he stepped out of the room and pointed down the hall. "And see that door? That's my room." he moved back into Peter's room, settling him down on the bed and pulling off his shoes and helping him get his jeans off. "Do you want to put pyjamas on or just sleep like this?"

"What kind of pyjamas?" was the response instead, and Steve moved over to the dresser, checking the drawers. He knew he shouldn't have expected anything else when he saw the Captain America pyjamas and just knew that Tony had had his hand in this.

"There's only these." he said, pulling them out, flushing in embarrassment. "Tony probably thought it would be funny. We can get you new ones tomorrow." Peter just stumbled over and grabbed at the Captain America pyjamas, holding them close.

"No! I love them." he said, clutching them close, and Steve couldn't help the wave of affection.

"Alright, don't worry. You can keep them if you really want to. Come on, let's get them on." together, they managed to get Peter into the pyjamas, and the boy immediately curled up under the blankets, eyes already closing. Though he waited a moment, the eyes didn't open again, and so Steve got up and went to his own room, putting on his own blue pyjama pants and a white t-shirt to sleep in, picking up his book to read before he fell asleep.

It was the middle of the night and he'd been fast asleep until something snapped him awake. He looked around, eyes sharp and ready for anything, until they fell on the small, fidgeting shape of Peter in the doorway.

"Peter?" at the sound of his name, the little boy immediately took a few steps closer, but not close enough to reach. "Peter, what's wrong?"

"I couldn't sleep." and the voice caught just enough for Steve to know there were tears.

"Hey, it's okay." he sat up, pushing back the covers so he could stand when Peter spoke again, words rushing out so quickly they were nearly strung together as all one word.

"Can-I-sleep-in-here-with-you?" he asked, voice high pitched and nervous, clearly fearing rejection. Steve could only feel more affection.

"Of course. Climb in." Peter all but fell over his own feet in his rush to get there, and he immediately climbed into Steve's bed, settling down right next to Steve, curled up against his side.

"Promise you won't leave?" was the small question that followed when Steve lied back down, and this time, the words brought an ache.

"Hey, I'll always be here when you need me. No matter what."

"Promise?"

"I promise." there was silence and Steve thought Peter might have actually fallen asleep when Peter spoke again.

"What am I supposed to call you now?" was the next question, and it was one Steve had spent many days thinking over too.

"That's really up to you, Peter. Just as long as you don't call me Mr. Rogers. That makes me feel old." that got a giggle out of the boy.

"But you are old." Steve couldn't help but laugh, but Peter was fidgeting again, and he waited to see what the boy would say if only so he could ease his discomfort. "You're not my dad." were the soft words that followed, heartbroken words, and they broke Steve's heart as well.

"No, I'm not. He was a very special person, and I could never replace him."

"I miss him. And my mom." there were the tears again, and Steve wrapped his arms around the tiny body of the four year old, lending all the comfort he could.

"I know, I know you do." Peter sniffled a few times before he finally returned to the originally question at hand.

"You aren't my real dad, but you're my new dad. My friends don't call their dad's by there names." It was in that moment that Steve realized never once had Peter called him by name, and when other people had he'd given an odd look. He wondered if this was why.

"You know, when I was a kid, my best friend called his dad 'papa'." there was silence and Steve was about to backtrack when Peter spoke up.

"Can I call you Papa?"

"I would be honoured." Peter finally relaxed, and that told Steve just how much this had clearly been bothering the boy. Peter didn't say another word, and so neither did Steve, instead he closed his eyes, intent on going back to sleep.

"Papa?" Steve couldn't deny the thrill it gave him to have his now legally adopted son calling him that.

"Yes?"

"I love you." it was said with the pure innocent adoration that only small children could have, and the warmth in Steve's chest nearly wanted to burst out through his ribcage.

"I love you too, Peter." he replied softly, and then on instinct, bent to press a kiss to the messy curls of hair on the top of the boy's head. "Now get some sleep, okay?" Peter gave a small nod, and then together, they drifted off to sleep.