Takes place a few months after Thanos is defeated and people have returned.

Tony was in the middle of his lab looking at multiple screens when he heard someone clear their throat loudly. He turned around to see his angry fiancée tapping her foot and shaking her head.

"Tony? Its 4 in the morning, you need to sleep at some point. I thought once Thanos was defeated your sleeping pattern would go back to somewhat normal?"

Tony winced at the name and got up to walk over to Pepper.

"Pep, I'm sorry if I woke you up but it's not because of that purple raisin that I can't sleep." He clenched his jaw not wanting to say the next words.

"I keep seeing him die Pep, alright? I keep seeing Peter die before my eyes and being helpless to stop it. I keep hearing his last words, his goddamn last words were 'I don't wanna go' and I keep thinking that it's my fault he died." Tony was near tears when he finished talking. He couldn't breathe.

Pepper also had tears in her eyes as she held Tony tight before she spoke,

"Tony, breathe okay? Peter is healthy and sleeping right upstairs, and him disappearing was not your fault. You love that boy as if he was your own child even before Thanos, you did everything you could to protect him."

"Then why couldn't I save him then?" Tony said without looking at her.

Pepper pulled away and spoke calmly but firmly.

"Tony you were the one who brought him back, you were the one who made him feel safe after months of uncertainty, you were the one who hugged him and did not let him go when he was saved, you were the one who got him back to his aunt, you were the one who gave him a second home and finally, Tony you were the one who gave a father when he needed it most."

Tony pulled her into a tight embrace and after what felt like hours, Pepper heard a hoarse voice say "Thank you for everything."

It took a few moments to break the embrace but Pepper finally got Tony out of the lab and dragged him up to bed for some much needed sleep. Tony stopped once to check on Peter and make sure he was alright. Once Tony felt confident that Peter was alive and breathing, he followed her into their room.

Peter stayed out til' about midnight on patrol so when he got back to the penthouse he was exhausted and totally crashed. He knew Tony didn't mind him patrolling that late since it was the weekend, Aunt May was another story entirely. He woke up from a nightmare about Titan and even thinking about it now made his skin crawl. He turned and saw that it was just 4 am and he was sweating. F.R.I.D.A.Y asked him if he wanted to alert Tony but Peter knew Tony rarely slept since Thanos so he told F.R.I.D.A.Y. not to worry him. After a few minutes, Peter attempted to try to sleep again. His ears prickled as he heard footsteps by his door.

"Pep, I'll be right in. I just got to make sure he's okay, I need this okay?"

"Okay."

Peter heard his door open as he kept his eyes closed but he knew Tony was watching him sleep. He felt Tony touch his arm and Peter opened his eyes slightly to peek and he could tell that just touching Peter relieved Tony so much. Peter thought to himself that Tony must have had a nightmare. Tony sat on the end of Peter's bed for a minute before finally getting the confidence he needed and got up and walked to the door, but before he walked out, he looked back at Peter's 'sleeping' form, smiled then left. Peter instantly felt safe and had no problems sleeping for the rest of the night.

When Peter woke up the next morning, he felt happy. He got up to go to the kitchen and saw Pepper already dressed for office and looking down at her Stark Tablet but when she noticed him, she put it on the table and smiled.

"Good morning Peter, how's your sleep?"

"Good, how about you Ms. Potts?"

"Well the usual half a night with Tony, I should be blessed, and how many times have I told you to call me Pepper?"

"Oh sorry Ms.- I mean Pepper, Tony still having nightmares about Thanos?"

"Not my story to tell Peter. I wish he'd open up more, that would avoid a lot more of these issues." Saying the last part under her breath with Peter giving her a questioning look.
"Where is Tony?"

"Here I am" Tony walked in with his signature smile. He gave Pepper a kiss on the cheek as she left and poured himself some coffee.

"What's up kid? Nice pjs" Tony said grinning.

Peter's cheeks went red as he was wearing the Hello Kitty pj pants without realizing it. He went back to his cereal.

"Uh I didn't even realize I had these on" he simply stated.

"Pete relax, I think it's funny you're so embarrassed to wear them at home when that's when they're supposed to be worn. And since I'm the one who technically bought them for you, I think it's special that you're wearing them in my presence" Tony said while giggling.

Peter was still red when he decided to speak again.

"I totally forgot you were the one who bought me these. " Probably picked hello kitty to make it more of a punishment" he said laughing.

"Well, you're not wrong there. You had to be seen in public in those, that's punishment enough. But let's not talk about that again, I still regret it."

Peter was slightly puzzled but let it slide.

"Okay? Can we work on my suit then? I think I have some upgrade ideas."

"Kid get your butt changed then we will." He said with a chuckle.

"Okay, be back in a sec." Peter said as he rushed out kitchen.

Tony couldn't help but smile.

Later in the lab, they had fixed up Peter's suit so he asked to help Tony with an Iron Man suit.

"Wait Tony, I don't remember seeing this programming yesterday. When did you do this? I was in the lab with you until I went out on patrol."

Tony rubbed his face and stopped working and said hesitantly "around 2 in the morning."

Peter stared at him for a second. He knew Tony hadn't been sleeping but to make more extreme programming in his suits concerned him. Tony really needs to talk to someone.

"Why are you not sleeping Tony? Are you having nightmares about Thanos? Is that why you're constantly down here?"

Tony quietly stared at Peter and tried to control his breathing and when he finally spoke, it came out as a whisper.

"They're not about him, they're about you."

Peter's eyes flew open. He was so shocked he didn't know what to say. Tony wasn't dreaming about Thanos these past months, his nightmares were about him so that explains why he came into his room last night, he wanted to make sure he was actually back. He knew Tony's simple presence made his nightmares disappear for the night, maybe he could help him with his.

"Tony, you know you can always talk to me. You don't have to go through it alone. And so you know, you're not the only one who gets nightmares from Titan." He ended in a whisper.

Tony said in a shaky breath "I keep hearing and seeing you die and I keep thinking it's my fault." Tony was near tears.

Peter immediately got up and hugged him and felt Tony tense at the contact.

"Tony breathe please, you're here and I'm here, we're both okay. You brought me home, and before you even think of saying why didn't you stop me from going to space, you tried, I just ignored you and even if I was still on the bus, Thanos's snap still would have included me. What's important is you brought me back and afterwards, you cared for me. You were always there for me like any Dad is, so don't say otherwise. Okay?"

Tony Literally had no words to say. The other Avengers and Pepper had commented on their relationship being like father and son but Tony mostly shrugged them off but this was the first time Peter himself had called him Dad and it made him proud. Tony hugged Peter tighter and finally said "Dad?"

Peter got nervous at this point "well, not exactly, I mean- I guess? Mentor?"

Tony stopped him "Pete, thank you for considering me as your dad. You do know that I love you like a son right?"

Peter was in awe and went back to hugging Tony. Once they finished the suit, they went upstairs to watch Star Wars since Peter was obsessed with them. Tony fell asleep half way through the movie but Peter was just happy to see him sleeping peacefully. Peter was out not much later.

"So that's how I get him to sleep, just turn on Star Wars?"

Pepper had just gotten home to see her boys sleeping soundly on the couch with Peter's head on Tony's lap. She couldn't help but smile.