Archive of Our Own ^beta

It was yet another pack night.

Peter had expected everything to go according to Stiles’ well-thought plan— especially after watching the younger run back and forth throughout the entire loft just to find more pillows and blankets for their puppy pile nest.

No one had arrived yet and they weren’t supposed to for at least another 2 hours, but his nephew’s boyfriend was still rushing to get everything done. Meanwhile, he could hear his nephew looking through drawers upstairs and Peter could only assume Derek was looking for the worn-out shirt Stiles was wearing; more specifically, Derek’s worn-out shirt.

“Dear nephew, is everything okay?” Peter asked with a smirk, just loud enough that Derek would pick up on it but not loud enough for Stiles to pay attention to. The young man was still on a search for more soft materials and Peter wasn’t going to distract him from it. That didn’t stop him from watching Stiles’ every move, however.

“I just can’t find my favourite shirt.”

Peter wondered just how often Stiles was borrowing clothes that it got a point where Derek wouldn’t realise what his lover was wearing anymore. The two were attached at the hip, so it wasn’t big of a surprise but Peter’s smirk widened at the fact that Derek and Stiles were just that comfortable to not pick up on things like that anymore.

“I wonder where it is…” Teased Peter, ignoring the growl that followed. He was almost tempted to leave the staircase and go upstairs to properly tease him but someone had to make sure Stiles was okay. The young man had already tripped a few times in his blanket-finding quest, someone needed to make sure he wasn’t going to break his neck while at it. “Hey Stiles, what about the bedroom? I’m sure Derek has some spare blankets there.”

“But I don’t—”

Stiles thanked Peter on the way up, touching his shoulder in gratitude as he made his way past the older wolf. His wolf couldn’t help but purr at the obvious scenting where the hand only touched the bare skin; Stiles was always one to know who needed touch and who didn’t after all. But Peter couldn’t let himself be distracted, he wanted to see just how his nephew would react.

And oh boy, it did not disappoint.

“Stiles, you’ve been wearing it the entire time? Come on, it needs to be washed. I was wearing it yesterday.”

Oh, what a turn of events. Peter wanted to see that up-close.

“I don’t care, it’s not like the pack doesn’t know we are together.” The closer Peter got to their room, the more obvious the smell on the shirt was; a smell Peter failed to recognise just minutes before. Peter could tell right away what had transpired the day before : Derek had most likely worked out in the shirt before the two of them ended up doing a completely different kind of workout while Derek was still wearing it. Peter could even smell a certain bodily fluid on it. Considering he never got a sniff of that before, Peter assumed it was their very first time connecting like that. “You want your sweater back?” Peter opted for watching from their doorway. Derek took a second to snarl at him but he simply smirked. “Ask for it properly and I just might give it to you.”

“Can I please have my sweater back?”

“Can I have my virginity back?”

Derek didn’t blush— well, his cheeks didn’t. But the tips of his ears did and Peter burst out into a laugh.

“Can’t argue with that, nephew!”