The angle of that slash is a bear, and leaves Steve needing to brace himself against Zerxus' chest with his forearm to get to it.

Still getting it done, needle biting in, thread pulling through (which Steve can almost hear, and can certainly feel the friction of), knotting it off and then breaking the thread and repeating the process.

"Bucky was older than me - and until that project I mentioned taller. He was pulling my ass out of the fire most of the time until then. He was kind of a devil may care type, but I was in some kind of fight every time he turned around. After... things flipped around on size and who the responsible party supposedly was." Then, since Zerxus is drifting: "Why'd it take you that long to meet?"