The hug had been expected, really. And he returned it eagerly, grin growing wider even as he pulled away slowly. "So I take it this wasn't you this time, sis?" He questioned, more teasingly then accusatory. Sure, last time had been weird, if not a bit fuzzy, but this place felt different. Less maniac for one.
Still, he was curious, and as he usually did, the younger explored her place in barley the blink of an eye. Flopping down at the desk and carefully flipping through the book she'd left open. "How do you understand half of this stuff?" He questioned, frowning at what, to him, looked like gibberish.