"woohoooo...., I am flying high up in the sky....."
Orun sitting on top of The Wyvern leader, spreads out his hands on each side with his moth wide open, and takes in the air stretching his face in weird positions.
After the vocal interaction with the Wyvern leader, Orun decided to spare them since they had done him no wrong to begin with.
The same way they harbored malicious intent against him at first, he also had the desire to feast on their meat upon first sight. So, that makes them all even.
In exchange for wanting to kill Orun, they decided, or rather were left with no other choice after being indirectly threatened, to temporarily accept Orun into their territory.
He also humbly accepted their invitation, with a request to add with it. To ride on one of the Wyverns back, which he currently is doing.
"this is the best. Getting to fly on the back of a Wyvern and feeling the air whooshing my body around, is the best feeling I have ever had".