Oh, Gladio. You joker! Or, well, Inigo seems to be taking that last part as a joke anyway, since he bursts out into very, very genuine laughter. Even when he stops laughing, his mouth is still stretched wide into a happy grin.

"Oh, come on. That's exactly why her hips are not lying! They're dancing!" .. At least, he.. thinks that's the meaning of this song? Inigo isn't quite used to modern music yet, but he can roll with it. He can intepret it in his own ways. "Because she's having fun. And so should you, since you bothered to come to the party in the first place."