showed me this
on Youtube and via the logic of Mel, it was translated into something related to DC Comics.
So, I figured in Young Justice, Dick and Wally are closest to being 'siblings', and here we go.
If you jump to minute 7:20, the brother asks his sister to marry him. That's where this comic's dialogue came from, only it was switched from "Will you marry me...?"
to "Will you be my best friend...?"
since, well. You know. They don't swing that way. >_>