Thunder frowned. Perhaps sitting down near him had only caused more aggravation. Regret told him he had made a mistake, even though his intentions had been good. His logic told him there was no way the brunette could have known his intentions, because he hadn't said a word and he was just jumping to conclusions about why he was more upset. Perhaps he should have left him alone in peace, farther away. Stayed up in the tree perhaps. Well, it was too late now.

At the sound of the other guy tripping over something. Thunder looked on in concern, eyes slightly widen. The first thing he noticed was that the guy was lying on his back with a pained look on his face. The second thing he noticed was that there was nothing he could have tripped on, except.. his own feet perhaps? Maybe his bag? Either way, he could have been hurt.

Biting his lip, he pulled himself up and slowly made his way over, trying not to get too uncomfortably close. Had this been a girl, he'd have kept his distance no doubt. "A.. are you okay?" he asked slowly, focusing his eyes on the guy. At this point, when looking at him more closely, for a moment Thunder wondered if he was a girl wearing boy clothing, and he froze in place.  Damn it all, why did he always have to become a chicken when it came to talking to girls? Guys, he could talk easily to. Girls?? Forget it. And yet, his compassion wouldn't let him bolt, not until he was sure they were okay.