Captain America drops his phone like it'd burned him and holds up his hands to catch a bulkier, heavier, metal-armed Bucky Barnes who looks like a spooked cat in all the worst ways. When he actually DOES catch him, it very quickly turns into the tightest, most loving hug Barnes has ever gotten in his life and that does not change the fact that he's glaring over at Loki like he could kill him purely with his mind.