The specific fantasy fluttering through his mind at the moment involves pinning him to the ceiling, peeling the leather off of him with his teeth, and sucking him off. It is only by the grace of Kryptonian processing that he 1. hears what Bruce says, 2. goes through the process of coming up with a response for it that matches what's going through his head instead of what's actually going on, 3. realizes that he's responding to what's going on in his head instead of what's going on, 4. listens to the words AGAIN in the context of actual current objective reality, and 5. comes up with a response like it's the most natural thing in the world.

He's got himself together. Really, he does. Just because he happens to use superspeed to accomplish it doesn't make it any less true.

"Of course," he says with a warm smile, his brain clearly returning to active mode, "and I brought over some dinner for later. Though of course, you're welcome to just leave it in the 'fridge if you wanted to grab something while we're out."