With as thick and soundproof as these walls are within the Lair, it would be wise of her brother to not lie about his estimated arrival time...simply because this final evening of pleasure will likely be full of lovely sounds he makes, just for her.

"Will gladly be as loud as you'd like," he says. "Since while we are traveling, we may have to show a much higher level of discretion...it would be in our best interests to get it out of our system tonight."

Might as well be smart about it! He smirks. "Kiss me like you mean it, dragon. See how loud you can make me groan for you."