This is a Greek-Like song sung By Iris (MMX4) and Zero (MMX Character). Lyrics:
Zero: I know what you're thinking, I'm thinking it too!
Iris: I'm not sure what you're thinking, So maybe that's true.
Zero: I don't know what happened, but I have no regrets.
Iris: For real? Or because you-know-who doesn't know yet?
Zero: Oh, it's just between us!
Iris: Not exactly. Someone made a fuss!
Iris: They sure weren't meant to see! But that locked door couldn't secure our privacy!
Lord C: She's got such a great voice. I can't make out the lyrics, speak up!
Zero and Iris: Shush!
Zero: Fine! Let's do it! Let's clear the air!
Iris: Save it for later, look out for that Thing There!
Zero: Ahhh! The pain, the pain! Too much to explain!
Iris: We've gotta stop what we're doing! Cause this is just insane!
Zero: The Lion Thing's got me! And that's seriously lame!
Iris: Thanks, mister Lion-Bot, I guess I win this game!