Although Steve's attention returning to them and the resulting lack of noise from the movement of his arm was reassuring, the soldier had hardly managed to lose any of the tension in his posture when he felt a sharp pain shoot through his upper arm and shoulder. Pain was nothing when he was expecting it, but he didn't even consider it a possibility in this situation.

His immediate reaction was to take in a hissing breath through his teeth and jerk away. Hardly a split second after that, his working fist threw a not-exactly-gentle punch in Stark's direction to get him away, a yell making its way out of him despite his clenched jaw.