[It's hard to argue with that logic; Riku had very, very nice hair. So nice that Grell would very much so enjoy burying himself into it. Sigh. He's about to make that suggestion, or something alike actually, but the sound of singing interrupts those thoughts.
Instead of asking Sora what on earth he was chirping out he just stops, stands, and stares. . not in the longing way like he had earlier, but in a way where he has a questionable look on his face.]