Reply to Capral90: Ooh, I see! (Thank you.) I'm not adding the NYC shirt specifically, but definitely something Tony. (Also, is there a reason that I can't PM you?)
Ned, for his part, knows about Peter wearing other people's clothes.
"If it helps you with your PTSD," he shrugs, smiling encouragingly at Peter, "Then I don't really see the problem."
Peter takes this as a go, of course, and after a spectacular sleepover a week or so later, playing Mario Kart and LEGOS and watching the Princess Bride (which they spend most of the time quoting at each other and flirting horribly), Peter steals Ned's Nightwing hoodie and wears it to class a week later.
Flash, obviously, teases him about how it's too big for him and talks about how it hangs past his knees and how Peter has to roll up the sleeves, but Peter can't really care, not when it smells like Ned, with the scent of plastic and pizza and cardboard boxes clinging to the sweater.
"Dude!" Ned exclaims, scowling when he notices, and Peter thinks for a moment that he's messed up, that Ned's seriously mad and he shouldn't have done that, but all Ned says is, "Give me some warning, would you? I've been bugging my mom all week about taking it for so long and not washing it, and it turns out you had it all along." He shakes his head and laughs. "Letting my mom be the scapegoat, that's just evil."
Then Ned laughs again, and Peter laughs too, and it's nice and comfortable and good.
Ned's clothes are nice in a way that May and Ben's can't be, in that they're big and warm and soft and when he wraps them around him, they can cover his whole body, head to toe, whereas May's and Ben's are mostly long sleeves and slightly loose.
He doesn't wear Ned's as often (he doesn't need to, he sees Ned at school, then afterwards he's in his spidey gear and at home he likes to sleep in Ben's old shirts), partially because he doesn't have as much opportunity to get it, anyways.
Sometimes, if it's really bad, and he can't stand wearing his own clothes (because part of him is trying), they'll go to gym class and when they leave, he'll take Ned's jacket and Ned will be stuck with just a t-shirt until the end of school (or Peter's episode).
There are a lot of times where Ned will catch Peter curled up in some corner or frozen on the ceiling and walls, breathing but not breathing and trying so hard but the air just won't come out and his head is dizzy and his breath is catching and his chest is thrumming and he can hear everything but hear nothing, and Ned knows that he can't touch Peter so he just pulls off his sweater and stretches his arm out, quiet and accepting and patient (and sometimes Peter thinks that Ned's too good for him, but he never says it out loud because he knows that Ned will just roll his eyes and make an argument strong enough that it will somehow prove him wrong and make him laugh).
Then Peter will sling it over his shoulders, too thin for the wide shirts that Ned wears but taking comfort in them all the same, arms slipping through sleeves and burying his face in the collar and just breathing it in, feeling it, warm and soft and Ned, and while it doesn't make everything perfect, it helps.
Ned'll tell him to breath, slow and steady and his voice just cutting through the overwhelming haze that's the world, and Peter will listen, follow his instructions, in, out, in, out, just focus on my voice...
And when it's all over and done, Peter laughs and says that the sweater smells like chips and asks, acting wounded, why Ned didn't share, and Ned knows that Peter just uses humor as a front at those times but he accepts it and goes along with the farce (because if he doesn't, Peter won't quite know what to do) and ribs Peter back (though sometime's he's a bit too shaken and promises in the sappiest voice ever that Peter can have some next time, for sure, and Peter will just sort of stand there and do that thing where he tries not to cry and fails miserably).
"You know, you can't get rid of me." Ned grins, wide and comforting and utterly familiar. "I'll always be in your head, as your guy in the chair."
And Peter knows, understands intellectually, and they're working on it mentally, bit by bit, as he smiles back, tired but comforted and agrees, soft and sappy, "Yeah."
Ned, for his part, knows that Peter's not quite ready to stop wearing his clothes.
(So if he keeps an extra shirt in his locker, then, well, who can judge him?)