I think if they know it would’ve taken a long while for Bucky to come around and show them. After-Hydra Bucky is a very quiet and intense kitty. The first time Tony is encroaching on his personal space he sports a very painful bruise from metal fingers around his throat :O
I absolutely love the picture of Steve pulling Bucky into his lap and giving him slow, sensual belly rubs. Hand beneath Bucky’s shirt (because he’s not nekkid in front of the others) and rubbing comforting circles across his stomach until Bucky is pretty much oozing from his lap.