I can imagine him accidentally getting Luna to crush hard on him after he accidentally some poetry in front of her and gets her hooked to his voice.
Well, she can still appreciate it.
Next up on the list of things that need to happen, but probably never will: Big Mac and Luna face off in an Epic Rap Battle.
@Comic: Shiny as a rpg nerd is the best thing. Especially since it's almost certain he got Twilight to play it with him.
I have a feeling Twi was too busy barricading herself in the library.
Celestia would be a master of subtle wordplay, while Luna just blurts out really bad puns.
So Mac and Luna will engage in an epic rap battle in flowery Elizabethan English. Heck, Big Mac already sounds like a rap artist's name. Then when Luna loses, Fluttershy will lay down a smack down so dope he won't know what hit him.
Roses are red, violets are blue.
I'm sorry to say, you've been eaten by a Grue.
Ed: Literally. Like, she casts a spell that mimics that effect from Scanners.
The 'pop-your-head-like-a-firecracker-in-a-watermelon' spell really only has one use, but by god when you need it...