Aerith looked thoughtful as she glanced up at Lea. "It's rare," she said, "because it needs two things to even be possible; two people who have spent enough time around each other to have absorbed enough of each other's chakra to use, and for them to be in tune enough with each other to use it." She smiled, sweetly, glancing at Saix who seemed to be embroiled in some prettyboy posturing competition with Grimmjow, judging by the smirking they were doing at each other. "He must love you very much," she said. "Not romantically," she added, hurriedly, in case Lea got the wrong idea, because she doubted Saix had romantic designs on Lea or he'd have made a move already, "but in the way people mean when they talk about loving a sibling."

She grinned at Lea. "It's sweet, really, and I bet he'd hate me saying that."