Captain America's Sister

"Stevie, Stevie," Steve heard a familiar Voice while on a mission, Grace, he thought. Then he saw her, struggling against 2 HYDRA agents, he didn't hesitate to throw his shield, hitting one directly, then knocking out the other. Steve took Grace back to the quinjet, and Bruce said he'll watch her. A few hours later, tired and exhausted, they boarded the jet. "Stevie," Grace whimpered, Steve set his shield aside, and picked her up, even though they were all wondering who she was, and how Steve knew her, the others kept quiet. Back at the compound, they showered, and settled down to sleep.