Leon could hear all the whispering and hisses, his cat ears turning and pivoting toward the brothers. He didn't exactly care who apologized first because, really, they both could. Which is exactly what he commented on first, holding up a hand to show his palm that was more human but had a dark pattern on the skin like a paw.
"You both can apologize. I'm sure you both have manners! It's cool, really." He smiled to show it was alright.
"I'm Leon P'rranka. The moth wasn't my friend. I was...chasing it. Though I think someone lost it." The Caitian then made a face as he looked down upon the creature in his hand. "I'll have to look up the insect people later..." Poor moth.
"So, eh, why can't you just live on different sides of the ship and avoid each other? If you don't mind my asking? It's big enough for the two of you." They had not answered him the first time so he thought to ask again. Leon was big on problem solving and making friends.