Tony was initially surprised when Peter didn't come through to get into their bed in the night until he realised the kid's exhaustion the day before probably stopped any dreaming. He looked over at his fiancée and smiled softly, seeing her so relaxed the past few days had been amazing, she loved being CEO but he knew how stressful it was, these few days of less work despite having to care for a toddler had done her good. Maybe he should plan a few days off for them all later in the year so they could go somewhere. Nodding to himself in agreement he got out of bed pressing a kiss to Pep's cheek as he did so before grabbing a suit and going to shower. Once he was out he stuck his head back into the bedroom to see Pep still asleep so simply left to go and make breakfast for the three of them, the smell would surely wake her up anyway. They only had just over an hour until Nat was going to come and collect Peter and they had yet to tell the boy he would be staying with them for a few hours.

He grabbed some eggs out the fridge and set about making some omelettes for the three of them, they had eaten pancakes every morning since Peter had been deaged and he fancied a change, he was sure the other two wouldn't complain. Not even ten minutes later Pepper wandered in Peter held securely on her hip and he couldn't help but grin at the sight. It didn't matter how many times he saw them like that it still made his heart melt. He pressed a kiss to both their cheeks as he served breakfast.

Pepper couldn't help but laugh as she looked at Peter, he seemed to be incapable of eating without getting covered in food. She wiped his face and hands clean before passing him to her fiancé so he could get the boy ready for the day. She loved watching the pair interact whether it was now or when Peter was his teenage self, the boy brought out a side of Tony she had never expected to see. Once the pair had left the room she put everything into the dishwasher before going to get herself dressed.

Peter was confused. He had noticed his daddy was wearing different clothes to normal which meant he was working so surely that meant he would be with mummy, but when she walked into the lounge where he was playing with his Thor action figure she was also dressed for work. He dropped his toy and pulled himself to his feet as he looked at his parents in confusion. "Mummy wowk? Daddy wowk?" He asked his bottom lip quivering.

Tony's heart broke a little as he looked down at his son, he should have known the boy would notice he was wearing different clothes. He knelt down so he could look his son in the eye and rested his hands on the tot's shoulders. "I'm sorry Petey-Pie but mummy and I have to go to work, we won't be long and will be home before dinner time okay?"

"I come?"

"No sorry baby, you can't come. It won't be very fun but Nat and Bruce are going to look after you. Remember how much fun you had yesterday? Well today will be the same just me and mummy won't be there." He had never felt like more of a monster as he tried to explain to his son why he had to leave and why the boy wasn't allowed to come as well. Just as it looked like the boy was going to burst into full on tears he heard the elevator doors open and pulled Peter onto his hip as he turned to face the newcomer.

Peter tensed when he saw Nat come into the room, he loved Nat she was really fun but he wanted to stay with Daddy! He shook his head and ignored the woman as she walked over sticking his fingers to his daddy's shirt so she couldn't take him away. "No daddy!" He kept repeating as the man tried to hand him over. Suddenly he felt a finger under his chin forcing him to move his head, he scrunched up his face but looked up at Nat anyway.

Nat understood why the boy was acting the way he was but she knew the meetings Tony and Pepper had to attend were important and both of them looked like they might cave and simply stay. Before either had the chance to say anything she looked into tot's eyes. "Peter. Come on. Stop sticking to daddy like that. You had fun with Bruce and I yesterday didn't you?" When the boy nodded she continued a smile spreading across her face. "Well we can have even more fun today, because there's someone downstairs who wants to meet you. Do you want to know who it is?"

Peter looked up at Nat in confusion, who would want to meet him? Was it worth unsticking himself from his daddy? "Who?"

Nat leaned in close her lips against the child's ear as she whispered "Thor." She knew immediately there would be no more trouble getting the boy to come with her as he tried to leap out of his dad's arms and into her own.

Tony couldn't stop the twinge of jealousy he felt when Peter seemed so eager to go and see Thor. What did Thor have that he didn't? He forced himself to smile thought when Peter looked up at him in excitement, it was better than the tears the boy had been in moments ago so he simply pushed his own feelings down as he looked at his son. "Are the tears over now Petey?" He asked smiling softly when the boy nodded. "Good boy. Now you are going to be a good boy for Nat and Bruce okay, remember to use your manners and no climbing on the walls or ceiling."

"Yes daddy. I go now?" Peter asked vibrating in excitement. He was going to see Thor, Thor wanted to see him, this was the coolest.

"See you later baby, give your mummy a hug and then you can go with Nat." He walked towards Pep passing the boy to her before letting him run to Nat and go downstairs.

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Bruce stood as soon as he heard the elevator door open and made his way to greet Peter, he wasn't quite prepared for the boy to sprint into the room and charge into his knees however and would have lost his balance if not for Nat grabbing him. "Woah, hey there buddy, what's the rush?" he asked as he patted the child on the back. Usually he was uncomfortable around children but it seemed Peter was the exception, he had a much better hold over the other guy these days but he was fairly sure even he would love the kid.

"Thow Bwuce, where's Thow?" Peter asked the scientist as he looked up at him still keeping a hold of his legs.

Bruce held a hand out for the boy to grab and led him into the lounge where he had left Thor on the couch. He wasn't too sure how well they would get on, Thor was obviously the boy's favourite but the man himself could be rather intimidating and he wasn't always aware of his own strength. As soon as he entered the room Thor got to his feet and he could feel Peter shrinking against him as he hid behind his legs.

Thor stood when Banner walked into the room, he had been told of this boy months ago but had not realised until that morning he was Stark's son and also the man of Spiders? He was only here now because he was able to get the antidote for the boy's situation, he would have liked to have visited before but getting his people settled in Norway was his first priority. He was nervous though, Nat and Banner had told him things he could and could not do with the child, he had never been in contact with a Midgardian child before and he wasn't sure what to do. When he saw the boy hide he knelt down in front of Banner, everyone was tiny to him so he was sure he was probably giant to a young boy. "Hello man of Spiders, I am Thor God of Thunder. I hear you have heard of me?"

Peter giggled slightly, Thor spoke funny! He peered around Bruce's knees and loosened his hold on the man's pant leg. "Hello," he mumbled shyly peeking up at the god. "I have a toy Thow." He stated "he's my favourite."

Thor smiled at the boy's words. "And you are my favourite Peter Starkson. I have a gift for you."

At those words Peter moved towards Thor and away from Bruce. He loved presents. He reached out eagerly for the bag in Thor's hand. "T'ank you."

Nat smiled widely as she watched the boy open his present, his expressions were adorable as he saw his own Thor costume. "Let me help Pete." She said as the boy stood stock still staring at Thor like he had hung the moon. She opened the box and helped the kid put on the armour, cape and arm bands. She snapped a quick photo of the boy before letting him run back towards Thor with a face splitting grin.

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Peter loved his Thor costume, he had spent all morning running around pretending to be the god of thunder with the man himself and listened in admiration as Thor told him about his adventures. Thor was the coolest.

"Peter, it's time for lunch kid." Nat told the boy before sending him to wash up. He had been well behaved all morning despite all the excitement. She was thankful for Thor though, Bruce had to keep nipping down to his lab to check on the antidote, they hoped to administer it tonight after all and she didn't think she had the energy to look after the kid herself. It was good Thor's energy seemed never-ending and the man was as excited as the three-year-old to play God of Thunder.

Peter ran back into the kitchen still dressed in his Thor costume and climbed up onto a chair thanking Nat as she placed a plate of PB and J sandwiches in front of him as well as a bowl of carrots and celery. "I want all of that gone before you leave the table kid."

Nat watched out of the corner of her eye as Peter at his lunch, he seemed to be pointedly ignoring the celery. "Peter, eat your celery, at least try a bit you might like it. Your mummy and daddy won't be happy if you don't finish your lunch."

"I don't wike it." He told her as he crossed her arms.

Nat was about to respond when Thor cut her off. "Do you not like celery man of spiders?" The god asked while eating some of his own. "A god need's celery to be big and strong."

Peter looked up at Thor dubiously for a moment. Did he need to eat celery? He did want to be big and strong. And he would probably be in trouble if he didn't. Sighing he picked up a piece and crunched on it. His eyes widened in surprise, it was good!

Nat relaxed and mouthed a thank you to Thor, it could be easy to write the man off as stupid but that clearly wasn't the case. "Good boy Peter." Once everyone had finished she gave Peter the gift herself and Bruce had bought him, earning herself a tight hug when the boy saw the Lego Avenger's tower.

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Tony blinked when he walked Nat and Bruce's apartment. He knew Thor was visiting but he hadn't expected to find the man sitting criss cross on the floor wearing his full armour with his tongue between his teeth as he built Lego opposite his own son dressed in the same manner.

Peter looked up and grinned when he saw his daddy. He jumped to his feet and laughed when the man caught him and swung him up onto his hip. "Hello daddy. Look what Thow got me." He said pointing at his clothes.

"It's very nice Petey-pie. Is that Lego new as well? I see Bruce and Nat have been spoiling you," he teased as he looked at his science bro and his deadly superspy girlfriend.

"Yeah, I showed Thow how to Lego, he never used Lego daddy. Why don't they have Lego in space? Lego is the best."

Tony just grinned and held his boy close. He knew his meetings had been essential and they had got a lot done but still he was glad to be home, also he had received a message earlier from Bruce to tell him they could cure Peter tonight so he was eager to spend a few more hours with his toddler son.

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Several hours later Tony was sat in his son's bedroom, they had eaten dinner and watched a movie as a family before he dressed the kid in one of his nerdy t-shirt and put him in bed. He ran his free hand through his hair as he sat on a chair next to Peter's bed the other was stroking the kid's curls. The boy's normal bed was back.

The last five days would stay with him forever and made him somehow love Peter more than he had before. He had taken hundreds of photos of the boy: covered in flour after an attempt at baking, swimming with Pepper, asleep in his dinner, at the park, everywhere he could get a photo he did. He even had a photo of Peter in floods of tears stuck to the wall as a result of seeing a spider…sure Pepper had scolded him something fierce for not helping the boy immediately but it was going to be perfect blackmail material for teenage Peter.

Pepper looked down at Peter, he looked tiny in the large bed and scared. "Peter there's no need to worry, we will be here when you wake up, you'll be able to go back to school tomorrow and see Ned and MJ." Her words seemed to have some effect as Peter's lips quirked upwards but he still looked nervous. Pepper got herself into the bed next to Peter and pulled his head into her lap taking Tony's place running her fingers through his hair to soothe him. She hated seeing him so scared but he needed to get back to his regular life. She was slightly worried he wouldn't remember being a toddler as he didn't seem to have many memories from being a teenager right now, but she supposed they would just cope whatever the outcome.

When Bruce entered the room he couldn't help himself and snapped a final photo of the family with young Peter. Pepper was sitting with the boy's head on her lap soothing him as Tony sat on a chair next to the bed holding his son's hand. Bruce knew Peter was afraid of needles but there was nothing he could do, the only way to administer the antidote was through a shot. "Hey Pete, I need you to be a brave boy for me can you do that?" he asked the clearly scared boy. "It'll only feel funny for a second then you'll fall straight to sleep"

Peter looked up at Bruce. He was scared and really didn't want a shot but he wanted to go back to school more. He wanted to see Ned and MJ and go back down to the labs with the other interns, he wanted to go out as Spiderman again. With those thoughts at the forefront of his mind he nodded.

Tony unconsciously rubbed his thumb over the back of Peter's hand to soothe him. Bruce had just injected him and the boy would fall asleep soon. He was afraid. Would Peter remember the five days they had had together? Would he still call him Dad or would he go back to Tony? Could he bear going back to Tony? He was startled from his thoughts by mumbled words from the boy in the bed "Love you mummy, love you daddy."

"Love you too Pete" the two reply almost in unison as they look down at their child, love in their eyes.

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Peter felt strange when he woke up. His whole body ached, he supposed that was unsurprising though, he did age twelve years overnight after all. He gave himself a second to centre himself before he opened his eyes. He was definitely on a bed but his head was not resting on a pillow, he could also feel a weight at the bottom of the bed next to his feet. Opening his eyes he immediately saw Pepper above him, asleep. Her back was resting against his headboard and her hand was still in his hair, he was afraid to move in case he woke her so just moved his eyes to see what the weight at his feet was. He gasped slightly at the sight, logically he should have known it was Tony, the man had hardly left his side when he had the flu, so he was unlikely to leave him when he was being aged twelve years in as many hours.

"Tony."

Tony's head whipped up at his name. He had been dozing but was not fully asleep and his eyes lit up as Peter spoke. He slid off the bed and sat on the chair he had been on previously as he pressed his hand to his son's forehead. "How do you feel? Headache? Should I get Bruce? I'll call Bruce anyway." He asked frantically as his eyes raked over the teen to see if he appeared hurt in any way.

"Tony…Tony" Peter tried to interrupt the man's babbling. "Tony…Dad!" Tony fell silent at the name and Peter blushed. "Dad, I'm fine, I feel fine honest. Well my legs hurt a little but that's all, probably just growing pains."

Tony snorted "you told me you were fine when you had that concussion." Peter opened his mouth to argue but the man powered on "and that time you broke your arm. Your version of fine couldn't be further from mine son." He watched as Peter's face lit up at the endearment his eyes wide with wonder. "Pete. I would be honoured if you called me dad and Pep feels the same, but you don't have to. I know May spoke to you about this but it's up to you. Don't feel pressured, take it at your pace kiddo."

Peter nodded his head "Dad feels right."

"I'm glad." Tony told the boy, he knew he probably looked like a total sap with a huge grin across his face but in that moment he couldn't care less.

Pepper was woken sometime later by her boy's voices. Their murmured conversation drew her from sleep slowly and she felt Peter tense then immediately relax as she began running her fingers through his hair once more. "Peter." She said still not opening her eyes "leave your hair natural more often, I prefer the curls."

"Yes mom"

Her eyes shot open at his words and were met with two grinning faces. "I assume Bruce has already seen you?" she asked the boy and receiving a nod she continued going straight into mom mode. "Okay then, Tony go make breakfast, pancakes good for both of you? While he does that Peter you get in the shower then you young man are going to school, there's plenty of time for you to make it there. You have missed enough school with the flu then the whole de-aging thing, we don't want your grades to fall."

Peter opened his mouth in indignation fully prepared to argue and get at least one day off but was met with a raised eyebrow from the woman above him, he swallowed his words. "Of course mom."

"Good boy," she said and ruffled his hair just as she had when he was a toddler. He thought he should feel embarrassed and too old for such a gesture but he leaned into the touch regardless.