Happy Nightmare Night! Here's an "obligatory older sibling stealing candy from younger sibling and trying to act cute and innocent about it" scenario with cosplay included. Here's Sailor Luna because why not? And Celestia as Ryuko Matoi from the best anime 5EVER known as Kill La Kill? I dunno man why the heck not?!
Anyway, I like to think Celestia steals Luna's candy, but rarely gets away with it.