"Water was the first thing I asked for. They granted it." So there is precedence on requests, at least, and he offers a light smile back towards Ken. "So long as our requests are within reason, I see no reason for them not to listen." Not if they wanted their continued cooperation, at least.

As for Seto and Vexen...

"I have little doubt in their abilities. My only concern is whether or not they will find themselves with us too soon."

That is to say, in the same position.