"Okay, so, what kind of powers do you have over the night sky, anyways?"
>Luna looks up at you from her book, eyebrow raised.
>"I raise and lower the moon, and can create constellations. Why do you ask, Anonymous?"
"Because I hear all this stuff about you and Celestia having all this control over your time of day, but you don't do much with it."
>She snaps the book shut.
>"I can guarantee you, Anonymous, that Celestia and I use our powers over the celestial bodies with great caution because-"
"Yeah, yeah, it's cause it's too powerful and whatever. I get it."
>She gives you an irate look.
"My point is, I want to see what more you can do then just raise the sun and moon."
>She humphs.
>"Fair enough."
>Another book appears from a magical poof, and it floats over to you.
"So, what's this?"
>"That is my book of constellations. I have made many in my time as princess of the night. I am allowing you to look through them."
"Think I'd be able to find any of these in the sky?" you ask, flipping through the pages.
>"Possibly," she says, winking at you. "Of course, there are no guarantees."
"Constellations are a bitch to find, I know."
>You continue looking through the pages, checking out each star-based drawing.
>A fish here and a pony archer there, but nothing you hadn't seen before.
"Do you just draw these in the sky with your magic and then draw them here?"
>"Actually, quite the opposite. I draw a shape in the book, and it materializes in the sky. Of course, this can only be done with my special quill and inkwell."
>And now you were going to steal that quill and inkwell.
"I'd assume the reason it works is because magic?"
>Luna chuckles. "Is there really any other explanation?"
"Hm. Mind telling me where this quill and inkwell are?"
>"Absolutely not. You'll hear nary a peep from me about its location."
"What if I tickled you into talking?"
>"Try me."
>Well, intimidation wasn't going to work.
"How about I pay you back with a favor?"
>"When I already have servants to do whatever I want?"
"What if I made you dinner?"
>Her stomach growls loudly.
>She blushes, an embarrassed frown on her face.
>"No, Anonymous. Not even for dinner."
>Her stomach growls again.
"But you're clearly starving, if that's any indication," you say, pointing at her rumbling belly.
>"Starving? Yes. Helpless? No. I can get food for myself, Anonymous," she huffs, getting up from her bed and walking out the door.
>She just...
>She just left you here alone.
>Guess that means it's time to get searching for that quill and inkwell.
>You waste no time getting up from your seat, beginning your search for the mystical items.
>You rummage through her dresser, rifling through a few articles of clothing, but finding nothing.
>Each drawer of the dresser has nothing more than clothes.
>Moving on, you next check her expansive closet.
>Aside from all the dresses hanging in here, all you're able to find is a spare pillow.
>Like that would be useful.
>Since the closet was a bust, you decide to check her bed next.
>Under the pillow?
>Nothing.
>Under the sheets?
>Nada.
>Under the bed itself?
>No-wait a minute.
>There was a small, round object, and a pointy instrument next to it.
>This had to be it.
>You grabbed for the objects and pull them towards you, inspecting them.
>In your hands is a quill and an inkwell with dark blue, glowy ink.
>No doubt about it, this was what you were looking for.
>You run right back to the book, wanting to do as much as you could before Luna got back.
>Flipping open the book again, you try and find a blank page, the number of pages used being almost endless.
>Flipflipflipflipflip here!
>A completely clean page, devoid of any marks.
>You start drawing things with the quill and magic ink, snickering as you do so.
>Luna would be in for quite a treat.
>Your artistic skills weren't impressive, certainly, but you weren't complaining.
>After about five minutes of drawing, you heard hooffalls from outside.
>Right as you finished your last piece, too.
>You quickly got up and closed the inkwell with its cap before throwing it and the quill back under Luna's bed.
>Sitting back in your seat, you close the book just in time for Luna to come back in, the moon princess chewing on a grilled cheese sandwich.
>She swallows her mouthful, and speaks, "Anonymous? I thought you would leave in my absence."
"Nah, you know me, just twiddling my thumbs and screwing around."
>"...right."
"Anyways," you say, pushing the book over to her, "here's your constellation book back. Y'know, I never took you for an artist, Luna."
>"The world is full of many surprises, isn't it?" she asks, taking the book back in her magic.
>You get up and yawn, stretching.
"Well, I'm beat. I'm gonna head off to bed. Night, princess."
>"Pleasant dreams, Anonymous," she says, closing the door behind you.
>If only you could see her face when she finds your work in the stars.
 
>You are Princess Luna.
>Anonymous has just gone off to bed, and you figure it won't be too long before you retire as well.
>Having finished your sandwich, you decide to take a look outside at the stars on your balcony before going to bed.
>Sitting on the cold stone ground, you marvel at the sky above.
>There's Leo, floating in the stars.
>Truly a work of art.
>Oh, Pisces has decided to visit as well.
>Its presence is certainly welcome.
>And there's...wait, what was that?
>You squint at the sky, and find that there's legible writing among the stars.
>"Princess Luna has a big butt."
>What!?
>There's more, too!
>"I <3 Luna's big booty."
>"Horsepussy."
>How did-?
>Wait, now there's actual FIGURES?
>There was one of what looked like an arrow pointing at your posterior, the word "BIG" right next to it.
>Another looked like...well, a crudely drawn vagina.
>Next to it was a perfectly drawn penis.
>Whoever did this has clearly seen penises more than vaginas.
>Really though, when the constellations were this dirty in humor, was it really hard to find out who made them?
>You stomp your hooves on the ground, then lift them high into the air, shaking them.
"ANONYMOUUUUS!"