WATCH THIS FIRST: gashiboka.deviantart.com/art/I…

Celestia: I'm sorry Twilight. My sister forced me to do this to you.
Twilight: What? Why?
C: *sigh* A stupid bet.
T: A... bet?
C: Yes.
T: What did she put in stake for you doing something.... something... this... unappropriated.
C: Three huge chocolate cake...
T: That's it? Just for some ca-
C:... and an entire week of vacation. I'm so sorry Twilight.
T: That... that's okay Princ-, err Celestia. But please, don't get me involve ever again in your stup- *sigh* in your games.
C: I won't happen again. I promise.
T: Good. Since you are here, I'm sure you would like some tea.
C: That would be lovely, thank you.
Twilight levitated a kettle in the sink and poured water inside before putting it on a element of the stove which she turned on.
T: May I ask you something?
C: Of course. What is it Twilight?
T: *sigh* Why? Why such a high stake for something like... this? Is it... so hard to...
C: Yes! It was!
T: Huh? Celestia...
C: Twilight. You are somepony who is very dear to me. Close to my sister... And doing this... this to you...
T: Oh! Really? You needed those vacations that bad do you?
C: You have no idea! Oops!
T: *chuckle* That's all right. Rainbow Dash and Pinkie Pie made me worst pranks in the past. So did Spike, but I got the knack for the correct punishment.
C: Twilight!
T: What? He is a baby dragon! He need to be disciplined. I can't do much for my friends though... Wait! You told what your bet was, but what you would have to do if you lost?
C: Oh! Luna would have get the vacations.
T: And the cakes?
C: Actually.... no. I would have to "babysit" Blueblood as well... for a week.
T: Oh my gosh! *giggle* That's would have be awful.
C: *giggle* Indeed.
T: So...
C: Umm?
T: Luna lost. What's her punishment?
C: Oh. Nothing much. Really.
T: I'm all ear.
C: Well, since she pushed me to this stupid bet and get you involved, while I'll be on my vacation... btw, she will probably need your help...
T: I'm make sure to be ready.
C: Good.
T: So?
C: Huh? Oh! Sorry. As I told you she will do my work for a week, babysit Blueblood and...
T: What? You didn't... The babysitting was enough...
C: Like I said she got you involved and I didn't accept the bet without this condition.
T: Please, tell me! I... Oh! The water is ready.
Twilight took the kettle with a levitation spell and put it on the kitchen table, followed by cups and their saucers. She then took some tea from a bag she took for her cupboard, remove the lid and put into the hot kettle. She put back the beg in the cupboard before gesturing her mentor to the table.
T: Tell me.
C: No coffee for two weeks.
T: Excuse me?
C: You heard well.
T: T-that's cruel!
C: She accepted the bet. It was this or the pastries.
T: I would have personally chose the cakes.
Twilight poured the hot beverage into Celestia's before pouring some into hers.
T: Sugar? Cream?
C: None, thank you. Oh! Before I forget.
T: What is it?
C: Grape.
T: Uh... I'm not following you. *Celestia raised an eyebrow* Oh! *blushes* Umm. I... got an accident earlier and some grape juice fell on me.
C: Huh? Oh no. Does it mean I will have to do it... again... after you wash yourself?
T: Uh... no?
C: Hahahaha! I was kidding Twilight.
T: S-so am I... Hehehe. Wait a minute! Who's witnessing that you made the bet?
C: You better put another cup on the table.
T: Wha-
Luna: So? I lost it seems.
T: Princ- *sigh Luna? How long were you...
L: All the time.
T: Huh? Why didn't you said something?
L: I didn't want to bother your interesting conversation.
C: You are such a sore loser Luna.
L: Quiet, sister. I love my coffee in the evening.
C: So do I about my former pupil. You pushed me to do this, remember. It was your idea.
L: True. I did something very foolish.
C: I leave tomorrow morning after I raise the sun for the last time until next week.
T: That soon?
L: WHAT? But there are so much to do this week...
C: Not my problem. I'll go enjoy the beach.
L: Hmph! Twilight?
T: Yes Luna?
L: May I ask of assistance from you and your friends?
T: Uh... *Celestia nodded* Of course.
L: Thank you very much Twilight. I'll find you a way to show you all my gratitude.
T: For beginning, to never again involve me or any of my friend in your bets?
L: Noted.
T: Oh! About Blueblood... don't even dare asking Rarity for her help if you don't want to take care of him in the hospital.
L: Noted. Something else?
T: Yes. For what logical reason you wanted so much that your sister to know exactly how I taste?
Celestia was staring while Twilight was glaring at her.
L: Uh... Umm.... Uh... I never expected her to do it! I wanted to win! So I bet something big like this so I would win. That is all.
C: Oh, Luna. I'm going to enjoy my trip even more, then. I'll send you postcards of those wonderful places I will visit.
L: Yes. Do that. Wait! You said coffee, not tea or... wine. I think I'll need some this week...
C: Twilight?
T: Yes Celestia?
C: I better give you the key of the cellar.
T: Huh? Why?
C: If you don't take care of this... This would turn uglier that I expected.