Celestia: What's wrong Luna?
L: This damn dress!
C: What about it?
L: I'm too afraid to stain it while eating. I lost too many hours of my life doing the mannequin for its confection for throwing it away with a single stain of ketchup.
C: Oh my.
L: And why this tailor had to make the waist so tight?
C: To put your beautiful traits in valor my dear sister.
L: Then, why they didn't with your dress?
C: Because they know me very well.
L: How so?
C: They know that I don't care much for my appearance.
L: I would rather say dear sister that is your renown appetite for pastries in great occasions that came forward to its confection.
She stared at her with a deadpan face.
C: Hush now.
L: How so? I'm starving! Aren't you?
C: Not really.
C: I ate an entire cake before putting down this exquisite dress.
L: They know you so well.
C: I know.
L: Ponyfeathers. I must find a way...
C: Use a repulsing spell on your dress, then. That way if any food make contact with the fabric it won't stain. That's what I'm using right now. Oh! Also...
L: Sister! That is a wonderful idea!
C: Wait! I...
Her horn glowed a royal blue and the dress glowed of a blue aura as well.
L: Let see...
She took a bite of her hayburger.
L: Hmm! That's so good... I was so...
Then a bit of ketchup fell on her collar!
But the tomato sauce slid off and fell on the ground.
L: My stars! It is working!
C: Of course. But, you should also...
L: Later, sister. I'm eating.
Ten minutes later.
L: Yes. That was good. Now I.... Ahhhh!!!
C: Luna? What's wrong now?
L: The dress.. is.... tightening.... ahhh.... I must... ahhhhh....
She ran inside.
Twilight: Princess Celestia? What's wrong with Princess Luna?
C: Simple. She ate too much and now her dress is too tight for her.
T: Huh? Why she didn't use a spell to make it looser?
C: Oh. That's what I tried to tell her earlier, but she didn't listen. That makes me remember, tell your friend Rarity that she can rest assured, Luna used a protective spell on her dress.
T: Too bad she didn't know before. She fainted the moment princess Luna took her first bite.