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Chapter 1:

A knock came at the door of number 4 Privet Drive one early Saturday morning. Harry and his Aunt, Petunia were the only one's awake in the house. Petunia sipping a coffee, while Harry made breakfast and set the table.

"Boy, get the door" Petunia snapped, wondering who on earth would knock so early on a weekend.

"Yes ma'am" Harry said, turning off the stove so the food didn't burn and made his way to the front of the house.

Upon opening the door, Harry could only blink at the strange sight before him. A huge blonde man with soft blue eyes stood with his hands behind his back, and next to him was a red haired woman with sharp green eyes and one hand on her hip, and the other carrying a briefcase.

"Hello, young man, may we speak with your guardians please?" The man asked, a soft smile and gentle look as he looked at Harry.

Harry nodded in awe, staring up at the man. No one had ever looked at him like that. Usually people ignored him or frowned at him. Harry pushed the thoughts aside as he turned to go and get his aunt.

"Aunt Petunia, they want to talk to you"

"Oh very well" Petunia huffed as she got up, "Finish breakfast. Vernon and Dudley will be up soon"

"Yes ma'am"

Harry continued breakfast as normal, but paused when he heard raised voices. Creeping to the door, Harry peered around the corner, seeing his aunt red faced and clenching her fists. The man and woman at the door looked angry too. He wondered what was going on.

"Boy! Get here now"

Harry jumped, and scrambled as quickly as he could to his aunt, stopping just out of range of her. She tended to slap him round the head when she got angry.

"Yes ma'am?" Harry asked, head down, eyes on the floor. He didn't want to anger her any more.

"You are going with these people. Now. Get out of my house" And with that, she shoved him out the door and slammed it shut.

Harry stood frozen. His aunt had just kicked him out. He was now homeless. His Uncle had threatened to kick him out so many times, and now his aunt had done it. Harry's lip trembled as he tried to keep in his tears.

"Hey buddy, it's ok. Everything's going to be ok" The blonde man kneeled down in front of him, "We are going to take you to our plane, then we'll tell you where we are going, ok?"

Harry nodded, wiping his eyes with the back of his hand, and took the hand being held out to him.

A short walk later, once they were in a large playing field, they stopped, and the lady touched her ear announcing they were here. Harry jumped and stared as a plane appeared out of nowhere and lowed the back door. Harry had to be tugged into the plane by the blonde man. He was lead to a seat and sat down.

"We're good to go Clint" the lady called to the front as she walked past him. The blonde man sat down next to him, which meant he could now the see the rest of the plane. There were actually several more people in the plane. A man was sat opposite him, nervously wringing his hands as he looked at him. There was another man pacing around and tapping on a tablet. And the last man was sat at the front of the plane, flying it. He hadn't even felt it move!

"Harry?" the blonde asked, "My name is Steve, that's Bruce, Tony's pacing around, Clint's flying the jet, and the lady is Natasha".

"Hi" Harry whispered, too scared to say much else. He didn't know what was going on and didn't know what was going to happen.

"It's ok Bud, your safe with us" Steve smiled "I need to explain why we came to get you"

"He doesn't know? You were meant to tell him when you got him!" Tony half shouted, as he turned on Steve.

"We didn't have a chance. That woman kicked him out as soon as we told her. I thought it would be best here, rather than on the street" Steve argued back.

"Yeah, I guess so. I just didn't want the crying and screaming fits"

"Tony! Please!"

"Alright, alright" Tony waved, and turned away.

"Right, well, Harry, have you heard of the Avengers?" Steve asked

"Yeah. They are on the telly a lot"

"Ok, well, we are the Avengers. I'm Captain America, Bruce becomes The Hulk, Tony is Ironman, Clint is Hawkeye, and Natasha is Black Widow"

"What about Thor?"

"Thor is on Asgard visiting his family. You will get to meet him later"

"Ok. Um... was I bad?"

"What?"

"You get the bad guys. Was I bad?" Harry asked, lip wobbling as the thought of being in trouble.

"No, no, of course not. You haven't done anything bad. You're not in trouble"

"Ok" Harry nodded, looking at his hands.

Steve sighed and rubbed a hand down his face. This was harder than he thought.

"Harry. The reason we came to get you is because we recently found out that a bad man took our DNA; DNA is inside everyone, it's what makes us, us. They took our DNA and made a baby. The baby was kidnapped and got adopted by a man and woman, but they died a year later, and the baby went to the lady's family. The person who kidnapped the baby died recently and sent us the information so we could find the baby. This all happened 6 years ago, so the baby is 5 years old now"

Harry stared up at Steve with a frown. What did this have to do with him? Did they want him to be this other kid's friend? He didn't know how to be a friend. He had never had one before. The kids at school didn't like him.

"Harry? Do you understand?"

"You... Want me to be his friend?" There was a snort from Tony and a muttered, "he clearly didn't get my brain", which made Harry blush red and look down.

"Ignore him. He's in a bad mood. Harry, you're the baby I was talking about"

Harry frowned and thought about it. Steve said a baby was 'made' by a bad man who stole everyone's DNA. He didn't understand what DNA was. But the baby was taken and a mummy and daddy adopted it, but they died when the baby was a year old. Harry's parents had died when he was a year old and he had been sent to his mother's family like the baby. So, maybe, he was the baby. But that would mean...

"You're my daddy?" Harry looked up at Steve, wide eyed.

Steve smiled at the boy, "Yeah, Bud, I'm your daddy, and so is Bruce, Tony, Clint and Thor. And Natasha's your mommy"

Harry leaned forward to look at Natasha, who was helping Clint pilot the jet, and just stared in awe. He had a mummy. He always wanted a mummy to cuddle and kiss him, and tuck him into bed and read him stories, like aunt Petunia had done for Dudley. He, of course, had always wanted a daddy too, but a mummy was like an angel that made everything better.

Soon after Harry was given some food and told it would be a long flight home. So he curled up in his seat and dozed off. He had had a late night. He hadn't finished his chores until past 10, when Uncle Vernon and Aunt Petunia went to bed.

Once Harry fell asleep, Tony stopped pacing and slumped into the seat next to Bruce. "What the fuck are we doing? He'd be safer where he was. Do we even want this? I know I never wanted to be a dad"

"Whether you acknowledge him as your son or not, he is still my son, and I won't just abandon him. I have always wanted children, but when I became Captain America, I thought it would never happen, and now I get that chance, so I'm not letting him go"

"I'm just worried about the other guy. How will he react to Harry if he comes out? And what if it's affected him? What if he has something like the Hulk too?" Bruce added, clearly nervous about the whole situation.

"We'll cross that bridge if it happens. Just give him a chance"

"Yeah, guys, kids aren't that bad" Clint said, turning his chair around, having put the jet on auto.

"That's easy coming from you, family man" Tony shot back

"Hey, you love my kids, Uncle Tony" Clint smirked

"What about you Natasha? Will you give it a go?"

"No. Children are something I got over. We should send him to Laura and the kids. He'd have a good life there" Clint gave her a sad look and sighed.

"Laura would be fine with taking him, if that's what we decide"

"No! That's not happening. Of course, it would be good to be around Cooper, Lila and Nathaniel, but he's our son. Our son. He belongs with us. He can have the room next to mine. No one uses that room"

"Fine, he can stay, but he's your responsibility. I didn't want this. I didn't ask for this"

The rest of the journey was silent. Harry had woken after a few hours, but had sensed the tension, and hadn't made a noise. He really needed a wee, but was too scared to ask. His daddy's and mommy all looked upset and he didn't want to bother them. Harry discreetly squeezed his legs together, closed his eyes and preyed they would land soon. He really didn't want to have an accident. He wanted to be a good boy. He wanted his daddy's and mommy to love him.

Harry whimpered when he felt himself release. He sniffed and hot tears of shame rolled down his face.

"Heya, little man, what's wrong?" came a new voice.

Harry looked up into a different pair of blue eyes. These were darker than Steve's baby blues.

"I'm sorry" Harry whispered to Clint, hoping he could somehow hide his shame.

"What's wrong Kiddo?"

"I, I, I had an accident. I'm sorry. I didn't want to bother anyone. Everyone's upset" Harry trembled, now cold as his wee had cooled down.

"Hey, it's ok. Accidents happen. We have a bathroom over there with a shower, and we have clean clothes, though, they'll be big on you. Want me to help?" Clint smiled, pointing to a door nearby.

"N-no thank you, I can manage"

"Ok, I'll sort you out some clothes" Clint Helped Harry stand and gently pushed him towards the door, then turned to pull out some clothes.

"Great, he's not even toilet trained. I am not cleaning up his piss"

"Tony! He's 5, and everything's been turned upside down. He's going to have accidents. Would it kill you to be nice to him? He's a child" Clint glared at the genius, turning back to the clothes. He found the smallest size jogging bottoms, socks and t-shirt, along with digging out some scissors. He'd cut the legs off so he didn't trip.

Harry sniffed as he turned away from the door to the shower. The walls weren't sound proof at all. He now knew that at least Tony didn't want him. He vowed to be the best son possible, so that they would all want him. He would cook his best food yet and keep everything clean and tidy, and he would do his best at school and get top grades. He wouldn't cry any more or bother them at all.

Harry quickly stripped and jumped into the shower, having a quick but thorough wash, before shutting it off and getting dry. He folded his dirty clothes, careful not to touch any wet patches, and made his way to the door, towel wrapped around him. Clint was waiting outside with some clothes in hand.

"Here we go, you put those on, and I'll put these in the bin. We'll get you some nice new clothes to wear" Clint said, swapping the clothes pile.

Harry turned back to the bathroom and quickly dressed, tucking the top into the bottoms, and folding the top of the socks a few times so they wouldn't fall off. Leaving the bathroom, Harry found his seat clean, so quietly took his seat.

After a minute, Clint come back over with scissors and kneeled down, "I'm going to cut the legs off, so you don't trip. When we get back to the tower, there should be some clothes your size waiting". Clint cut around his ankles, "There, all done. You should be ok now"

"Thank you" Harry smiled

"It's fine, Kiddo, don't worry. One of us should have told you where the toilet was"

At that moment, Steve made his way over from the front of the jet, "We'll be landing soon. Once we're there, we'll have lunch, and show you your room"

"Ok" Harry smiled up at the two men.

Within half an hour, Harry found himself sat between Steve and Clint, with a large plate of pasta set in front of him. He wasn't sure how he was going to eat it all, but he wanted to be a good boy, so would try his best.

"So, Harry, do you like school?" Steve asked, trying to break the awkward silence that had settled over the room.

"?N-not really" Harry mumbled, staring at his plate.

"Oh? What don't you like?" Clint asked, smiling at Harry, trying to ease his nerves.

"The o-other kids aren't very n-nice" Harry flushed, embarrassed to admit he was bullied.

"That's ok Bud, you won't be going back to that school again. We'll find you a new school here and I bet you'll make lots of friends" Steve reassured him.

"Really? You think so?" Harry stared up at his new daddy wide eyed.

"I know so" Steve ruffled the messy mop of hair, enjoying how soft it was. His son clearly got his hair colour from Tony, and the messiness from Bruce.

"Want to see your room, Buddy?"

"Yes please" Harry chirped. He was getting his own room! He'd only ever had his cupboard before. His new parents were the best, ever!

"Right this way then, Kiddo" Clint said, picking the tiny boy up and placing him on a hip.

Harry froze for a brief minute, before melting into the warm embrace. He couldn't ever remember being held before, and it felt amazing. He wanted this all the time. Harry was in such bliss that he didn't even notice dropping off on the strong broad shoulder below his head. And certainly wasn't aware when he was tucked into a cloud of blankets and two warm kisses placed on his head.

Hope you enjoyed x

Edit: 14/02/18