I Can't Do Everything (But I'll Do Anything For You) (слэш)

Steve Rogers cares about a lot of things, but dating isn’t one of them – much to his fellow Avengers’ bemusement. It’s just never been very high on his list of priorities, falling somewhere behind his work, his friends, his hobbies, and that excellent pepperoni pizza from Vinnie’s on Flatbush Ave.
That is until one night, Natasha drags Steve out to a charity music concert by some hotshot singer that Steve has never actually heard of (which would surprise exactly no one, seeing as Steve is still partial to his records and his radio plays). And as soon as Steve lays eyes on Grammy-award winning musician and international heartthrob James Barnes for the very first time, suddenly he wonders if maybe dating wouldn’t be so bad after all. Dating James Barnes, specifically, that is. The question is just: how does one go about that? Especially one like Steve, who’s never wooed anybody in his century-long life, let alone a man. Let alone a man with long, dark hair, tattoos all over his arms, and a fanbase that rivals Steve’s own.
It’s not like he can just go up to him and say something like, "You and me babe, how about it?"