Like, Peter just shows up to earth one day and says he’s gonna stay for a bit as a vacation. Unfortunately he knows very little about earth anymore and SOMEONE has to look after this full grown idiot.

So the heroes throw him into Scott Lang’s corner since Scott is living alone and not handling post-blip as well as he could be. Captain Sam Wilson insists it might be a good idea to give Scott company outside of his bestie Luis and his ?kinda? girlfriend Hope, both who are busy with their own life’s post-blip (Luis found a pretty waitress down the street and they move fast). Cassie visits but she’s so used to being without Scott that she finds it hard to incorporate him back into it now that’s she’s grown up. Scott understands, even if it hurts. A lot of his friends and family moved on without him to cope and survive the travesty.

So Peter ends up being Scott’s new roomie. And Scott’s glad to have the company, really, but he’s tired. He missed so much after being stuck in the quantum realm. He’s, to put it bluntly, stuck in a big old heaping shit pile of depression. His episode is hitting hard now that there’s nothing impending to fix. He feels alone.

And Peter’s not all that good with pep talks. He’s a blunt guy verging into asshole territory most days. So he figures if Scott won’t get up and seize the day himself, he’ll make him. Peter makes him breakfast in the mornings and forces him to shower and drags him along to a bunch of tourist sites and complains and marvels about all the changes that have happened since he left.

And Scott actually does start to feel better. He starts to feel fond of Peter after a bit too. Peter has that spark of child-like energy and wonder that reminds Scott of Cassie as a kid, but still holds up a decent adult conversation with Scott. He’s like a mix of all the good people in his life who were left behind for five years after he disappeared and Scott just latches onto Peter.

And Peter? Peter is living the dream. He’s drinking in the attention and this new friendship he’s created. He feels accomplished after getting Scott to open back up. Plus, the guy has good taste in “nostalgia music” with him only being a bit older than Peter. He gets a guide for his new earth he once called home and gets a constant figure in his life who isn’t all that bad in the long run.

They trade secrets dead in the night like star crossed lovers, they create inside jokes like best friends, and they pick at each other like siblings. Scott hugs him like a son and Peter tucks his head under his chin like he’s a young boy again.

They become practically soulmates, even if they don’t light a flame inside each other like Hope does to Scott or Gamora (and half the galaxy lets be honest) did to Peter.

And eventually Peter has to leave earth. They both cry a little (read: a lot) when they say goodbye, and Peter leaves Scott something to contact him with while he’s gone. Peter is noticeably bummed when he leaves earth with his crew, and Rocket might tease him for being sentimental, but he’s not cruel about it. And when Peter gets the first message from Scott after only 24 hours, his mood shifts into that of a content, almost happy one.

They send messages back and forth over the course a year before Peter returns to earth for a short visit. And Scott is the first to run up to him and welcome “Peter, my boy, my man!” back, with a crushing hug.

Peter gets teased plenty by his crew mates about it and Cassie is there too, all suited up like her father, and cracking a few jokes of her own.