Orion wasn't trying to be funny in the least. He already knew where this interrogation was headed so why the need to follow Raymond's flow?
If he could annoy him and potentially earn a win, though superficial, he'd take it.
Funnily enough, none of what Orion had said had been an exaggeration or lie, Raymond truly looked like that. He wasn't ugly by any means but compared to Orion who was the literal embodiment of mortal perfection, he looked odd.
Even though Orion knew a cultivator of Raymond's level wouldn't truly care about him trying to pick on potential insecurities, he knew that after a certain point he'd get annoyed.
His pride could only allow Orion to talk up to a certain point. Past that point, what was about to happen would occur.