OMG YES! I mean, it's no secret that I love the yellow jumper, why else would I have one like that as well? But I have it in my head that Eddie just steals it at one point, snags it away to have something of Steve and when it's cold at night, he sleeps in it, so when he opens the door to Steve the next morning, 'cause he's picking Eddie up - and of course he overslept and doesn't think about the fact that Steve is supposed to pick him up - Steve just looks at him for a moment before he says "That's mine. I've been missing that one!" And Eddie gets all flustered, because he can hardly admit that he stole it, right? So he makes something up about Steve probably leaving it here after a movie night, or that he forgot it in Eddie's van or it somehow ended up among Eddie's belongings, and he didn't pick up on the fact that he didn't really possess a jumper like that. Because admitting that he took it to have something of Steve with him would really be telling something. Then again... Steve still has that denim vest and hasn't given that back, so they're evenl.
And as much as I love seeing Steve in Eddie's clothes, be it his vest, band shirts or whatever, Eddie even dressing him up so that he won't stand out when he accompanies Eddie to a concert (because Eddie would drag him along to show him really good music), I just adore when Eddie wears some of Steve's clothes. The more conservative kind of stuff, the simple shirts and whatnot. Because on the one hand it's a contrast to what he usually wears, but it's perfectly fine, because it belongs to Steve, and he likes wearing Steve's stuff.