As Bright As The Sun

The streets of Canterlot buzzed with activity as the birds sang high up above, making a composition of sounds that almost mimicked music. Laughter and voices formed the chorus while the birdsong and stamping of feet formed the steady beat that was the soul of the sound of the day. Very few ponies stood still long enough to enjoy the strange and unusual rhythm of the city, however, there was one who had listened to it so often she had become bored of it and wished for a different melody for the city.

Accompanied with guards at her side, she hummed a tune to herself to shake off the constant babble and noises she had grown used to hearing day after day after day. She had to stop her own music every few minutes when a passerby bowed and made her come to a halt. Silently, behind a radiant smile, a slight temper grew. She huffed as, from high up above, a bird decided to make use of the open air and, like a missile, its waste caught her crown.

Nearby watchers gasped as Celestia's eyes turned from the street and looked upwards. She levitated the crown off of her head and stared white mark left on its golden frame. Staring hard, a smirk appeared on her lips and she burst into a fit of laughter. Many ponies sighed in relief as she saw the princess' bulky frame shaking with fits of laughter as the offending bird calmly flew away.

"Uh, Princess?" one of the guards asked the hysterical princess.

"Here, take this," Celestia chuckled as she levitated the crown over to the guard. "Go back to the castle and get it washed. Now, if you’ll escuse me, I've got a date with a several pastries." The guard blinked as he stared at the white smear that tarnished the golden crown, only to shrug and wander back the way he came. Celestia, on the other hand, smiled with sincerity as she saw the end of her journey to Pony Joe's, with the mountain of treats she had ordered for the lunch.

As she and her entourage arrived at the cafe she took the time to compose herself as she walked in. She smiled when she saw the lavender mare that had invited her for lunch. After taking a few steps forward, there was a sudden blast of streamers and music. It took a few moments of calming down her guards and assuring them Pinkie Pie wasn't a terrorist, she sat down at the table with Twilight and Pinkie Pie.

"It's great to see you again, Twilight," Celestia said to her student, before turning to the Ponyville example of limitless energy, "I'm also glad to see you Pinkie Pie, even though I wasn't expecting it."

"Neither was I! It was just a spur of the moment thing when Twilight told me she was heading to Canterlot, and then the Cakes informed me that they needed some food supplies that none of the Ponyville shops had in stock, so I came here with Twilight to buy those supplies and tag along with Twilight here to say ‘hi’ to you and catch some lunch," Pinkie said without taking a pause nor a breath, much to the princess' surprise. She gave the shocked princess a quick glance. "You know, you look funny without your crown."

Quickly regaining her composure, Celestia smiled. "Well, one can't always wear a crown. Sometimes I feel like trying to take off the princess mantle and just be a regular pony," she explained, leaning her face on one hoof and sighing. She turned her head towards Twilight. "But we all know that’s impossible for several reasons... well, at least two of us do," she added, giving the Pink Wonder another glance. "It's not as if there exists some spell that allows you to take another pony's place, or hide your appearance or even suppress wings or a horn," she mumbled.

"Makes you wonder how the changelings manage it," Twilight said thoughtfully at Celestia's mumbling.

"Xenomorphic cell system," the princess commented under her breath as she began to stare at her hoof.

"Pardon?"

"Nothing."

Four hours later, after the princess and Pinkie had a treat gobbling contest which the latter won, Celestia bid Twilight and Pinkie farewell, and began to adjourn to the castle, or at least attempted to do so, while under the effects of a grade A stomach ache.

Her hooves tried to remain stable as her guards slowly walked her to the castle. Her entourage had grown in size since word reached Shining Armour of her contest. They kept the streets clear and the windows closed so that the citizens didn't have to see the princess in her state of weakness. She felt some of the pain alleviate and raised her head a bit, only to feel a sudden pressure build in her throat.

Unable to stop the flow, she refused to let it come out her mouth, fearing the worst, but was surprised when it took the nasal route. A large stream of fizzing bubbles erupted from her nose as she made a sound halfway between strangling a cat and holding back a sneeze.

"Oh, Hades, the pain!" she screeched with a burp of bubbles, all the while her nose continued to burn while more bubbles formed out of each nostril.

"That would be round 5 coming back up," one of the soldiers whispered to another, "Fizzy Pops and Hydra Water." The rest of the journey was filled with much groaning, moaning, bubbles and cursing from the princess, and even at one point, a pass of flatulence followed by: "There's the Arneighbian Cherry Bomb!"

Once in the castle, Celestia's stomach had managed to settle over the 2 hour journey, though there was the occasional bubble filled gas. She was quickly guided to her private quarters and laid gently down on a sofa. As the maids left she began to close her eyes, only to be disturbed by some noises and voices.

"Fweh... they left. Now princess, I must suggest we leave here at once, before your sister returns," a familiar voice said. Celestia remained quiet as she listened, trying to detect the source.

"Doth thou not enjoy the princess of the night's costume play? Do you think it childish?" a voice that obviously belonged to her sister responded. "Costume play?" Celestia thought, slightly raising herself to peer over the top of the sofa.

"Princess, it's not that, I just don't want to be caught like this. Imagine your sister's reaction to you w-w-w..." the other voice trailed off.

"W-w-w-wearing her crown?" Luna mocked. "Ha! My sister probably won't be back till late in the eve, as she never enters her room other than for rest and relaxation," Luna responded. Celestia could hear the clopping of hooves on hard stone as her eyes focused on where the voices were coming from. The bedroom.

Very quietly, Celestia rolled off the sofa and onto the floor, still unbalanced to her over full belly. She slowly began to creep towards the bedroom door, trying to find out just what her sister was up to when she heard a slight scream and squeal. Nearly bolting from her place, but hindered due to the pain her belly warned her such an action would deliver, she quickly went to the door and peered through the crack.

She smirked at the sight. Her sister was striding around in her room wearing several pieces of her old attire and her freshly cleaned crown. She also snickered at the fact that her sister had even gone to the length of splashing something that made her white onto herself. She looked around the room as best she could to try and catch a glimpse of the other pony her sister was talking to, but unable to even find the slightest hint of pony. At least, that was until the covers on the bed gave way and Celestia almost lost her grip on her laughter. For there, on the bed, was Celestia's niece Cadence, covered from head to foot in Luna's attire and body coloured blue.

"Luna, I don't really feel comfortable like this. I mean, I just got married two weeks ago," Luna whined as Celestia continued to parade around, staring at herself in the mirrors that filled the room.

"Oh, don't be a spoilsport. Your husband said he was fine with this," Celestia said as she examined her flank.

"I did, but this is humiliating," came another voice hidden under the sheets. Celestia crossed her eyes trying to keep her laugh suppressed as the captain came up from under them dressed as the royal snob. "Well, we at least know she'll take her time. She had a food eating contest with Pinkie Pie. I'm sure she won't be back for another hour or if she is, she won't be in any state to do anything."

"Look, we agreed to do this, and I agreed to let you wear my jewelry for a week if you did," Celestia said as she walked up to the bed. "Now, who'd like to start.

Outside, the true princess of the sun's body shook from trying not to laugh, until it clicked into her head exactly what Luna meant. Not wasting any time, she threw open the bedroom door, causing the party inside to shrink back in shock. All four of them.

"Oh, sister," Luna said with a sheepish grin.

"Sister," Celestia responded, "may I inquire as to why you are in my room wearing my crown?"

"Funny story," the white painted princess of the night started before catching her sister's eye.

"I'll be the judge of that. Now you three," she said to the three heads on the bed, "out!" There was a quick scamper of hooves and a slight dragging sound as the three left. "Luna... just why?"

"Maybe because almost every pony I meet only sees me as Nightmare Moon and wouldn't fancy a screw," she explained.

"Okay, that explains seducing the newly weds, but why are you all dressed... like... well?" Celestia asked, motioning to Luna.

"I... find it sexy?" Luna responded, unsure what to answer with.

"Well then," Celestia sighed, "only one thing to do then,"

"What?" gulped her sister.

"I've always wanted to try screwing myself. Maybe we can give it a shot," Celestia said, with a smirk and a silent pass of gas.

"Sister I do not com-" Luna began, but was cut off when a hoof reached up to her mouth and squeezed it shut. Luna gasped as the hoof left her mouth and Celestia drew her body up beside her. With a blink of realization, the younger sister finally caught her sister's meaning. "Oh... Oh!" Luna cried. "No, no, but we are family!"

"Cadence is our niece," Celestia replied, nuzzling her sister. She brought her face up and began kissing her sister's neck. "And you made her dress up as yourself, did you not and Shining as Blue-"

"That was just roleplay!" Luna responded, pushing her sister away with a wing. "And Cadence isn't really related to us by blood, only by status as an alicorn!" she said as her face became red by the blood flowing to her cheeks.

Celestia drew back and returned to nuzzling her sister. "Oh come now Luna, you can't hide your feelings from me because we are sisters. I can practically smell your excitement," Celestia told her white washed sister as she sniffed the air.

"That is from before!" Luna desperately cried as her sister moved down her body. Celestia slowly nipped at her sister's side as she approached the mare's rear, making her travel slow as she approached, making sure she wasn't mistaken. With one last nip, she lowered her head beneath her sister and inhaled deeply, recognizing the arousing smell at once.

"Gotcha!" she stated, lifting her head out from under her sister and then stepped forward, only for the sudden movement to cause her stomach to ache. With a groan, she fell to the floor just beside her sister.

"Sister!" Luna cried and faced her fallen sibling. "Are thou unwell?" she asked, worried for her sister.

Celestia groaned and opened her eyes. "I'm alright, apart from a belly ache. Pinkie sure can stuff food away," she mumbled as she rose. "I think I'll just sleep it off," she stated, making her way to her large bed and climbing onto it with a gentle ease.

Luna blinked as her sister began to snuggle between her blankets. The soft heat that had been building in the mare's withers had grown hotter as her sister had teased her. She had tried to shake off the feeling, but being a mare like any other, barring her immortality, she was beginning to lose hold on her instincts. The sight of Celestia's rear as she shook in her bed drove the primal instincts in her mind wild and forced her to act.

"Sister, may we join you?" Luna asked. Celestia grunted in affirmation. Luna slowly trotted up to the bed and climbed on. She gently sifted through the blankets and joined her sister in her rest. Trying to decide between the conflicting thoughts in her mind: one screaming at her that the acts she was thinking of were an abomination, the other encouraging her to seize her prize. With a final thought she acted.

"Celestia, we request that you royally grace our behind!" she yelled as loud as she could into her sister's ear. Celestia fell over in shook upon hearing the royal Canterlot voice at such a close range.

"LUNA!" she responded, regaining her crown and shifting her weight. "I have told you abou-what did you say?" she asked.

"We-I... wish you to grace..." she squeaked as she lost the courage that drove her the first time. The mare once again felt strained as competitive thought entered her mind. She argued with herself when she felt a hot breath gently blowing on her withers and, more to the point, encouraging her heat.

"I'd never have known you had the courage to tell me like that," Celestia said as she gently blew her breath on her sister's folds. "I was thinking you were here just to watch over me you naughty filly."

"We-I-I..." Luna stammered before gasping as Celestia slowly dragged her tongue along her marehood, exciting her heat to no end. She turned to face her sister as the soft tongue once again made a journey across her sacred ridges, sealing her fate. "Buck me now!" she screamed into the air.

"With pleasure!" Celestia retorted before driving her tongue deep into Luna's wet folds, causing the younger white washed mare to arch her back in surprise and pleasure. Celestia worked her tongue deep inside her sister, licking hard against the inner walls of the mare as she screamed moans of pleasure in response. She eased her muzzle slowly out and swirled her tongue as she continued to lick Luna.

Luna could feel the heat grow as pleasure surged through her from Celestia's skilled tongue. She cried as Celestia licked her sex and drove her muzzle in once more. With a pop, Celestia pulled her muzzle out, licking her lips of the juices of her sister. She then lowered her head and rubbed her tongue against her sister's most sensitive spot, causing the younger mare to gasp with pleasure. She nipped at it lightly and began to suckle on it.

Luna breathed heavily as she felt the fierce enjoyment her sex was taking. Although it was pleasing, her body sought more. "Tia... please, ohhh... please fill me..." Luna moaned against her sister's attack on her body. Celestia, not wanting to disappoint her younger half, ceased her suckling and levitated over a small bottle. With a quick squirt, the bottle slathered its contents onto her horn. Luna, oblivious to the action began to whine as her sex was failing to receive attention.

"Sister, you asked me to fill you, now no take backs," she stated as she lined her horn up. With a small thrust, her head aligned perfectly with her sister's engorged folds. As her horn dug deep, she was met with both resistance and a deep gurgling moan. As her sister calmed down, she slowly pulled her horn our and pushed it back in. She sweated as she felt the insides of her sister clench and squeeze against it, filling it with a tingly sensation. After slowly thrusting a few times, Luna matched her rhythm. Celestia pushed as deep as she could while her sister met her the other way. Celstia could feel her forehead grow wet from the combined moisture of the lubricant and her sister's juices.

Luna held back screams of joy as she pushed her body to try and fit as much of her sister's horn inside her as she could. She grew weary as her heat was pushing its limit and caused her to sweat in concentration, not wanting it to stop. With a final thrust, she climaxed, her body arching in glorified pleasure as her sex squeezed her sister's horn tightly. Her fluids sprayed wildly against her sister's face before she collapsed, riding the lasting orgasm as it burst like electricity through her.

Celestia slowly pulled her horn out, licking her lips of her sister's climactic juices as she went. With a heave, her horn was free, flinging her back slightly and spraying the juices it was covered in all over the room. She grunted with satisfaction as she watched her sister shake with pleasure as the sheets grew wet from her fluids. "I think I'll have the maid clean these tomorrow," she said as she wiped her horn. "Now, sis-" she began, but was interrupted by snoring. She turned back to her sister, now sleeping with drool hanging from her mouth as she had fallen asleep where she had just finished climaxing. With a huff, Celestia stood up. "Great, now I won't get my turn," she said in annoyance before a sharp pain reminded her she wasn't in shape for that right now. "Oh well, we can save it for tonight," she muttered as she laid herself beside her sister. "This'll be fun to tell the maids," she mused as she drifted into sleep alongside her lovely sister.