It was a wonder that electricity was all that smelled off about Wren; he'd been hidden away and institutionalised for so long that it was a wonder the damp and dark hadn't soaked through under his skin, or the disinfectant smell of surgery and clinics. That was to say nothing of the years of fear and confusion and butchery - would you expect that to have a smell?
Wren would probably be happy that electricity was the strongest component underlying his scent and not any of the dark things he lived in the moment to forget. He'd also be fine if he knew Archie was a vampire, already having decided the man was not only a firm friend but a beloved one; he'd offer his neck up with a side salad if he thought Archie was hungry and wanted a nibble, because he cared for his friends and not just because he was stupid.
The idea of clothes going on underneath clothes - especially in this manner where it didn't seem to be layered efficiently to stay warm as in, say, a hoodie might do - baffled Wren. He tipped his head like a change of perspective would help him understand more, looking back to the underwear and back to Archie like he wasn't sure Archie was playing a joke on him.
He rarely wore anything tight enough to rub him and as for modesty... Wren just wondered who that was.
Archie pulling his jeans off nearly had Wren immersed in a dissociative episode, but the man was so quick to redress that he didn't get the chance; that and Wren was still curious about the underwear and it was that curiosity that made him able to fetch himself out of that state before it began.
He dressed himself while Archie called up the pizza place, pulling up his underwear and then the pajama bottoms which pooled at his feet, and then the tshirt, the sleeves of which hung down to his elbows, exposing his fine collarbones and dwarfing him in it - he loved it immediately, even if he didn't feel quite the same about the underwear.
"This feels funny." he said, walking over to sit before the telly like a dog with booties on for the first time.
"It looks amazing!" he assured Archie, even if the film hadn't actually started yet - just the production company animations were startling to him.