Thor knew the Moron was making that up, probably for the sake of Gamora which he found entertaining. Maybe he'd seen reason and conceded that it was indeed the best option at the time. Thor would likely just choose to believe that because it made the most sense in his brain.
"Are you asking because you're requesting my services to help you train? Because I assure you there's no way you could keep up with my training regiment." He chuckled, probably a bit longer than necessary, before he finished off his coffee in a quick swig. He wasn't one to savor if he could just have another. A little gluttonous but he was a god.
"How do you prefer your coffee, Gamora? Creamy? Or strong?" Yes, he was jabbing a little at the Moron but it kind of came naturally.