Celestia and Luna discuss something that's been on the former's mind ever since Luna returned. Something in her mind even during her sister's lenghty banishment:
The taboo love they share going back 1,000 years ago.
Will they continue their relationship or set it aside?
Rated T for softcore Princest and slight implicit sex, nothing explicit shown.
https://www.youtube.com/watch?v=vjUqUVrXclE
Hard t0 really find teen rating with incest in it.