'Twas Lonely in the Moon

"Um...I suppose I like penetration of the arse, but...shouldn't we wait until my physical condition can be evaluated?" I say, rubbing my sore flank.

"Of course, I'll go on ahead to freshen up in the bathroom. Fleur de Lis, Fancy Pants' wife, will be here to keep you company until a nurse examines you", Celestia replies.

She takes but a moment to use a napkin from the table to clean up my rear area and legs. I blush profusely, though surely I would be more embarrassed if my sister had left me with signs of self-urination for the examination. As well, my loins begin to tingle and I let out a soft whimper.

My sister notices and smirks, then trots out. Within moments, Fleur trots in with a slight glare.

"I see Celestia smacked your rear harder than you smacked mine", she remarks with a voice that is close to condescending in tone, but instead puts off an air of elegance.

"Indeed...we hope we haven't upset thy husband with our treatment of thy backside", I say with a slightly apologetic tone.

Fleur giggles, then sits down.

"It's nothing to worry about. Fancy Pants thought it was funny, and he was well aware you aren't yourself, even though Celestia didn't let us hear the details on what you did with those guards", she says with a smile.

I sit down next to her, groaning a bit from soreness on my side.

"Glad to know. I wish I could say the same for myself", I mutter with hardly any confidence, letting down the royal we for a moment.

"Princess, it's quite alright, just promise me you'll be this exciting all the time. Celestia can be a bit of a bore", she says with a smirk.

"We shall try, but it may be some time before we are fully acquainted with modern custom", I reply as the nurse comes in.

Fleur nods and trots out, giving me some privacy as a red nurse with a blue mane pulls out a long instrument.

"Mind if I take your temperature rectally, Princess Luna?" she asks.

"Do whatever thou must to assess our condition!" I reply, not quite understanding how one obtains temperature from the rectum.

The nurse nods, puts me onto the table, lifts my tail, and penetrates mine anus with the instrument, making me squeak most unprincessly in surprise. She rubs my buttocks and side slightly as she prods mine injured area.

"Does it hurt...here?" she asks, pressing in a few spots.

I groan as she hits the point of impact.

"How bad is it?" she asks.

"Not very, it shall most certainly bruise, but nothing else hurts", I reply as her instrument produces a beeping noise.

"Here, swallow this whole, then have something to eat", she says, producing a small cylindrical white item.

I comply as she lifts my tail again, and rather suddenly slaps my rear and removes her temperature probe, prompting me to give another squeak and a slight blush.

"You're fit as a filly, princess. Just wait a bit before you go flying into any other walls", she says with a rather loud chuckle and another slap to mine arse.

I can't help but laugh a tiny bit as well while she trots out. 'Tis good that at least a nurse hath more confidence and charisma than the guards' pittance, though I pray she hath not noticed my loins dripping from her acts. Perhaps Celestia put her up to that affection upon my rear.

After consuming a banana to comply with the nurse's order, I head quickly to meet with my sister. I hope I'm not keeping her waiting. When I enter her bedchambers, I find her smiling back at me from the bed.

"Well, dear sister, are you ready?" she asks.

I hesitate a moment.

"Y-yes, how dost thou want to begin?" I ask as I approach.

"Hmm, well, since you have a sensitive behind, how about I try out my riding crop?" she says, levitating a black tool that appears to be similar to a spade, but with a triangular, flexible head.

I nod and get onto the bed next to her, breathing heavily. I close my eyes and brace myself. Within moments, a hard thwack to my rear makes me cry out in a mix of pain and excitement.

My sister chuckles a bit before again delivering a blow. I make a raggedy sigh in pleasure as the painful sensation spreads across my right buttcheek. My loins begin to beg.

"Mmm, wet already I see. There there, big sister will tend to the pain and burning desire", my sister says while rubbing my rear with a hoof.

I make only a shuddery inhale in response, and soon find myself in a quick smooch. As my sister pulls away, her hoof goes from my rear to my nethers and begins to stroke my petals tenderly. 'Tis mere moments before I let out a moan.

"Ah, sister, you're quite sensitive. I'll go easy on you this first time", my sister says with a reassuring tone.

While the words seem a slight insult, my mind is too much in a fog to form a coherent response, and I submit. A moment later, my tail is lifted and I feel my sister's hot breath upon mine anus, making me squirm slightly in anticipation. I do manage a moment of lucidity as her rubbing of my folds relents.

"S-sister, shall I not clean up thoroughly first?" I ask quickly.

"Luna, I I know from the guards you haven't defecated yet since being purged of Nightmare Moon, and you're not the type to leave the bathroom without being clean anyways. If everypony was that afraid of getting dirty, none would enter another's bedchambers!" she says as she strokes my flower once again.

I manage to put an approving tone in my moan, and hike up my tail slightly. In turn, she gently puts her lips to my sphincter, and lightly licks once. I shiver in response, practically helpless at the mercy of my big, loving sister. She seems to take that as an invitation, and soon her tongue is swirling around my puckered exit.

The combined assault of her hoof and her tongue on mine inexperienced body's holes hath me panting and moaning for minutes. I briefly think of the guardsmare, and how she doesn't even compare with my sister. I cry out without any coherence, something to the effect of "waaaghnnng!" as my sister's tongue pokes inside my rectal passage, while her hoof ever-so-slightly pushes in and against my inside walls below.

Soon after, my orgasm hits me hard, and my flower unleashes a spurt of nectar. I quiver and my tongue lolls out as my holes clench, pushing out my sister's hoof, but entrapping her tongue. I hear a slight chuckle and then feel her tongue writhe inside me, making me cry out in pleasure as my orgasm is pushed further. I drool on the bed as my mind becomes unable to really control everything.

As I finally come down from it, I pant heavily and shiver. My sister withdraws her tongue slowly, then rubs my rear once it's out.

"Ah, I see you quite enjoyed it, dear sister. How do my bedsheets taste?" she asks with a smirk.

I then realize, looking down, that my tongue hath not reentered my mouth, and pull it back in while blushing.

"Not unpleasant, thankfully. ...thanks, sister, that was...the most intense thing I believe I have ever experienced", I say, still laying submissively with my tail raised, slightly too exhausted to bother moving.

Celestia pats my head and smiles.

"Any time, Luna. Now, shall we discuss our duties?" she asks, levitating over a large stack of papers.

"If we must..." I say, not looking forward to things as the first of many documents is set down.

After around the 10th budget approval gets my signature, I look to the still daunting amount of paperwork remaining.

"Sister, is it truly necessary to do all of this in one day?" I ask.

Celestia looks a moment between the papers, my haggard form, and a nearby slice of half-eaten cake a guard provided.

"I suppose not, but it's good that you seem to be getting the hang of modern politics", she says with a smile.

"'Tis merely old politics, but with more mouths to feed, more words to remember, and thankfully fewer pleasantries to pepper into every single proclamation", I say as I roll onto my back.

"Hmm, I hadn't noticed how it's changed, but it was slow. Now, since the day is growing short, I think we could do one more little romp", she says with her eyes half-closed lustily.

I briefly assess my physical condition, and find that in addition to having laid down too long, I am thirsty, my bladder is full, and my bowels are similarly needy.

"I would quite appreciate it, but first I must freshen up", I reply as I stretch and head out.

"Very well, I'll be ready by the time you return, dear sister", Celestia says.

Once out of the room, I come to the nearest guard.

"Water please, and make haste", I tell him while straightening out my mane.

I'm pleasantly surprised when the guard soon returns with the pitcher I broke earlier, glued back together. After a few sips, I give a nod that his task is completed, and head towards the bathroom.

Just as I prepare for my most undignified and least royal daily act over the nearest toilet, Light Step enters, with her armor on. I awkwardly smile to her, then look away as I very noisily empty myself of the remains of the hay fries and learn that, thankfully, I have not caused myself constipation with mine unusual eating and drinking habits of late.

With every bit of filth and excess water out and flushed away to the sewers, I trot to the sink with a feeling of great physical relief. Only when I look in the mirror do I realize Light Step is still looking at me, which is perhaps rude. She clears her throat.

"Princess? I would like to talk to you about, uh...us I guess", she says with an unsteady tone.

I wash my hooves before replying, and beckon her to come closer. She trots up and looks between me and the mirror a few times.

"As well would I. Dost thou wish to remain in thy sexual duty?" I ask plainly.

"Yes, I would like that, although...sorry but I kind of overheard you and Celestia um..." she says while avoiding eye contact.

"Hmph, figures", I mutter in mild amusement.

I put a hoof around her to comfort her, making her eyes meet mine again.

"'Tis okay, I was about to tell thee anyway. Just know that your behavior overall is much less than exemplary, and 'tis fortunate thou art in my good graces, so I will only spank thee!" I say with a wide smile.

She nods silently.

"Now, art thou ready to be shared by two princesses?" I ask with an even wider grin.

She stammers out something resembling approval. 'Tis all I need as I drag her out of the white room and back to my sister's bedchambers. Along the way, a few guards stare, but none break their orderly watch, even as I open the door and toss the mare onto the bed as if she were but a pillow. Celestia does stare a little bit as the mare removes her armor hastily.

"Sister, I see you brought extra fun!" she says in a tone making Light Step gulp.

"Forsooth, this one was listening to our earlier session. Do you think she can keep it secret?" I ask, eying up the guardsmare.

"Doubtful, but so many rumors come out anyways I shouldn't have to behead her the first time she lets ponies know", my sister replies with a chuckle.

Light Step shivers, clearly terrified.

"Sister, thou shouldn't make our guards shake! They are merely volunteers, after all", I reply.

"Volunteer butt lickers!" she exclaims like a filly as she levitates Light Step's head under herself, and slaps the guardsmare's buttocks.

We both break out into a gigglefit. Soon, even Light Step hath joined, making my sister moan slightly from the vibration applied to her posterior. Seeing an opportunity, I lunge, wrap my forehooves around her, and attach my lips to hers. The kiss is brief, but loving, and I can tell this time that Celestia is starting to feel for me as I do her. She barely even lets me pull away, getting two extra miniature smooches in.

"My my, sister, does my mouth contain candy?" I ask playfully as I remove some unnecessary regal attire.

"Afraid not, but that makes it no less sweet, little sister", she replies with a tender smile as she follows suit.

"Same for thou. Now, would thou allow me to partake of thy flower? I want to return the favor from earlier", I say with my eyes closed and head pressed to Celestia's neck.

"There's no need to repay me, Luna, you're not like my normal lovers. Of course, if you insist, I can't deny you", she replies, letting off of Light Step.

The guardsmare inhales harshly, apparently having been unable to breathe while trapped by my sister's large posterior. We roll together to the side and I turn around to look down upon my sister's snatch and shapely curves. It takes me a moment to notice the massage from her hooves on my backside.

"Um, what do I do?" asks Light Step, again on her back looking more a lost puppy than a guard.

"Eat Luna's asshole as you would a fine pastry, my tongue won't be able to reach", Celestia says in a rather regal way only she could pull off.

I blush, and bury my face into my sister's loins to hide it while I waggle my rear like a common harlot, tail draping onto my back. 'Tis but a moment before a snout awkwardly jams into my rectum, making me cry out against my sister's moist cunt. I let my tongue slip out onto it, lightly tasting it as Light Step indeed assaults mine arse as if it were the sweetest treat in the land.

After a few minutes, one of my sister's hooves departs from my buttocks and lightly taps at my clitoris. I moan loudly and with so little ability to control myself that I've instantly let both mine own saliva and a bit of my sister's arousal juices soak into the bed. It takes quite a bit of effort to get back to my task, especially now that Light Step seems to have figured out how to lick correctly.

Celestia herself is much quieter when her first moan comes, and as I am for a moment rather lucid, I hatch a plan to get her to cry like a young filly taken for the first time. I slip my tongue deep into her folds, though not as deep as the guardsmare is into mine arsehole, and simultaneously summon two long and ethereal phallic objects, which widen quite a bit towards the ends facing away from me. Upon hearing my sister make a slight noise from my tongue's movement, I rapidly retreat it and thrust in both objects! Just as planned, my sister squirms, shakes, and screams out my name.

With just a little more thrusting of the objects, her fluids unleash onto the already-wet area I drooled upon, allowing me a few tastes with my tongue. Unfortunately, her hoof stroking my flower withdraws, leaving only Light Step's rimming. Contented at my work, I tend to mine own needs, reaching a hoof back. As I stroke my petals softly, I think not of the usual large stallions or mares in debaucherous clothing, but of what a wonderful sister I have. I begin to pant as my climax slowly approaches.

However, never one to be outdone, she soon pulls away my hoof, and slips her tongue inside. Her movements are so tender and careful, yet stimulating, that I am but jelly before them. After a few odd vocalizations of my pleasure, I cannot contain myself any longer, and I cry out her name so loud that I fear half the castle hears it. My body, meanwhile, is a complete ragdoll on the bed. I quiver, my holes clench around the tongues inside, and my cunt contributes to what is surely already a large puddle below my crotch. In this moment, I hope that my relationship with my sister may never end.