John shrugged again. Pietro knew a little about his past, knew he'd never really had a family; his powers manifesting had seen to that.
"Turns out I have a baby sister," he began quietly, staring out over the grounds, arms tightening around his shins as he leant his chin on his knees.
"She's got...I don't know, some kind of cancer. Leukemia, I think. They tracked me down because they thought I might be a match." His mouth twisted in a humorless grin.
"Turns out I'm not, so they told me to fuck off back to the rest of the freaks and stay away from them." If Pietro looked close enough, he'd be able to see John trembling, just a bit.