Tags: PCxTSxPL, PCxPL, princest, huge boobs, futa, boobjob, frottage, cum, cum, everywhere / way too much to drink, seriously, lots of cumplay here, double penetration

“Now that...” Princess Luna sighed, “We found quite enjoyable.”

There was no audible answer from anywhere in the room, but a conspicuous lump under the covers shifted slightly.

“Clearly, much has changed in a thousand years for the better. For one, we are gladdened to hear that homosexuality has become much more broadly accepted. Before our banishment, such was the fear of taboos that our people would only allow themselves even thoughts of such 'depravity' deep within their dreams. Not even us of royalty could be free of the taboos, such was their power. It pleases us to know we may show our affections for the fairer sex without raising a scandal.”

“Well...” Twilight's head poked out from under the covers. “Announcing in public that you want to sleep with a women may still raise a scandal.”

“Truly?” Luna replied. Twilight was again, thankful again for her soundproofing spell. Even Luna's pillow-talk was louder than what would pass as normal conversation, to say nothing of the volumes she reached mid-orgasm. “Why is that? Is homosexuality still not as typical as we'd hoped?”

“No, it's more like...” She paused, trying to put her answer to words. “It's partially the homosexuality, but it's more about the general attitude towards sexual promiscuity, especially where the upper classes are concerned.”

Luna stared at Twilight for a few seconds. “Thou mean to say that it is no longer socially acceptable to take enjoyment in the pleasures of flesh?”

“Sort of. The politics involving sex have always been—”

“We did not give thee permission to cease massaging our bosom,” Luna suddenly interrupted her.

Twilight offered her an apologetic smile. “Sorry,” she said, and resumed her hands' gentle ministrations under the covers. “As I was saying, there's a fuzzy line between, in loose terms, being seen as loser who cant get any action and being seen as a slut who'd let anyone between her legs, and the line leans towards the former the higher your class. Up at the top, for the Princesses... well, let's just say Celestia's set a precedent of angelic purity.”

The princess let out a disbelieving snort. “Celestia? Pure? We cannot possibly have heard thee properly.”

She just giggled. “I didn't say she was pure, she just has to project that image. Otherwise, the nobility would hound her about it for a few months before they inevitably move on to the next scandal.”

Luna sighed. “So in exchange for a few scant sexual freedoms, We sacrifice the rest of them. We retract our earlier statement.”

Twilight just disappeared back under the covers. After a few moments, Luna let out a hearty moan. “Then again, the freedoms We may enjoy now are so much more sensual than what We have experienced before. Thou are quite gifted.”

There were a few moments of silence before Twilight let Luna's nipple pop free. “Well, I've had plenty of experience to go off... sort of. Compared to you, I hardly have any, I guess.”

Luna chuckled. “Unless your appearance does not indicate your age, yes, we should think our experiences outweigh yours by a significant margin.”

“Well, I guess I had good teachers?” Twilight shrugged, still lapping at Luna's tits when she could.

“Clearly. Such as whom?”

“Well, for starters, Princess Celestia's high on that list.” Suddenly, she felt Luna's body tense up. “Sorry, did I make it weird, bringing your sister into this?”

“Thou—!” Luna suddenly threw the covers off, exposing her and Twilight's naked bodies to the moonlight.

Twilight shrunk away from her fierce gaze. “Guess I did, hah hah... sorry?”

“Thou have been intimate with our sister?” she asked, her voice rising.

“Um... yes?”

“And yet, thou hast accepted our proposition?”

“I... erm...”

Twilight was rapidly becoming aware that somewhere in the last few hours, she had made a huge mistake.

“THIS SHALL NOT STAND! COME, THAT WE AND OUR SISTER MAY METE OUT PROPER JUDGEMENT!”

“...What?”

Luna clapped her hands together, creating a flash of light that blinded her.

“SISTER! WE HAVE ENCOUNTERED A SITUATION AND THY PRESENCE IS REQUIRED!”

Twilight wobbled on he legs and held her hands to her ears, trying to quiet the ringing.

“Luna, what are you... Twilight?”

Her blood went cold. “Princess Celestia?” she asked, looking up at the shade of the massive four-poster bed.

A few candles lit up, revealing the rising Solar Princess, still rubbing sleep out of her eyes. “Twilight, Luna, did something go wrong at... You're naked,” she noted. “Why are you... oh no.”

“Uh, can someone tell me what's going on?” Twilight asked. “What did I do wrong? Why did you take us from my bedroom to... Princess Celestia's?”

“THOU CONTINUE TO CLAIM IGNORANCE OF THY CRIME EVEN AFTER THOU HAST CONFESSED TO US?”

“What crime!?” she cried.

“Luna, stop,” Celestia said, sighing as she massaged her temple with her fingers. “She doesn't know. Hardly anyone does anymore. That law hasn't exactly been relevant for a while now.”

“What law!?”

“TRULY?” Luna turned to Twilight, watching her shake in bafflement, distress, and fear. She dropped the Royal Canterlot Voice. “There is a law regarding intimacy with princesses,” she explained grimly. “Should a princess take any person to bed, that person may never bed another princess, on pain of death.”

Twilight's jaw dropped. “Death? You mean I—! But I—!” She sank to her knees, tugging at her hair. “Oh stars, why didn't I listen to Shiny!?”

“Twilight! You are not going to die!” Celestia shouted, leaping out of bed and placing her hands over her shoulders. “Look, the penalty isn't death; it's chosen by us, the princesses wronged by the criminal. And besides, I will take responsibility for this.”

“Thou would?” Luna asked. “Why?”

“Because honestly, I really should've it coming,” she sighed, standing up. “I had considered the possibility of one of you seducing the other, but I didn't make any attempts to warn Twilight of the law, or you of our relationship.”

Luna was silent. “Then thou shall submit to a penalty of our choosing?”

“As long as it's not something public. I'd rather not have to explain any of the circumstances to the press.”

“...Very well. We have decided on a punishment.” She pointed a finger at Twilight. “We shall claim her for ourselves.”

“What?” Twilight squeaked

“WHAT?” Celestia cried at the same time.

“We see that the penalty is fitting,” Luna smirked. “Twilight is a fine specimen indeed, and we would hate to be deprived of further contact with her.”

“Absolutely not!” Celestia fumed, drawing herself to her full height. A small part of Twilight was bursting with joy that she was fighting for her, but it was quickly buried under the anxiety of watching the princesses fight. “I refuse to surrender Twilight!”

“Thou are not allowed to refuse, Sister,” Luna frowned. “Hath thou forgotten the law?”

“Have you?” Celestia snapped back. “The punishment is to be decided and agreed on by both of us.”

“Thou forfeit thy right to choose the penalty by offering to bear it.”

“And what law says that?”

“Are thou arguing semantics with us, Sister?” Luna growled.

“Choose. Something. Else.” Celestia's tone was more frigid than Twilight thought possible for the Solar Princess.

“Um,” she piped up, suddenly gaining a sympathy for Fluttershy, “don't I have a say in this?”

“NO!” Luna snapped, at the same time Celestia's expression softened.

“Luna,” she said warningly. Turning back to Twilight, she said, “I'm sorry, Twilight. I hadn't expected things to escalate so drastically.”

“No, really, it's my fault anyways,” Twilight sighed. “I should've at least mentioned our relationship to Princess Luna before this all happened.”

“Twilight, you had no idea that there would be an issue,” she replied. “My sister, on the other hand,” she continued, glaring over, “did know the law, and should've at least suspected—she was well aware that we're close.”

“Oh, so now We must bear the penalty?” Luna hissed.

“Why does there have to be a penalty?” Twilight cried, grabbing both of their attentions. “Look, this was all just the result of some silly misunderstandings! Do either of you really want to... punish anyone over a mistake?”

The two princesses stared at her for a few moments, exchanged looks, then leaned in towards each other in a quiet, rapid debate, while Twilight's heart pounded in her chest. They straightened out and looked back at Twilight.

“We cannot simply ignore the law, so we must deliver justice,” Princess Celestia declared solemnly, walking up to her. Twilight felt herself sink as her head craned up. “Therefore, we have agreed on your punishment.” She reached out with a pointing finger. Twilight screwed her eyes shut, forcing her hands to remain clenched at her sides.

She didn't expect to be flicked in the forehead. “Ow!” she squeaked, covering the spot with both her hands.

Celestia just giggled. She leaned down, peeled Twilight's hands away with her own, and planted a small kiss on her forehead. “Justice is served,” she said, while Twilight's face burned.

“Precious,” Luna said dryly, “but the penalty is merely a part of what we must discuss.”

“Um,” Twilight muttered as Celestia backed away. “What's the other part?”

“Which one of us shall claim thee.”

“Luna, I don't see how that's an issue,” Celestia said. “She was mine first, and she will remain mine.”

“We think not!” she snapped. “After this transgression, both our claims have been severed. Thou have no more right to her than We do!”

“Then what do you propose?” she asked icily.

“She must choose.”

“Um...” Twilight had really been hoping that it wouldn't come to this.

“That's hardly fair,” Celestia scoffed. “There is a reason I refer to her as my most faithful student, after all.”

“I, erm...” That was true. Honestly, if she had to choose, Twilight would definitely choose Princess Celestia, but she really didn't want to have to reject Princess Luna, especially right after befriending her when no one else would.

Luna laughed. “As if she would choose thy withered, old snatch after experiencing what I have to offer.”

“Excuse me?” she growled.

“Hath thou gotten hard of hearing as well, dear Sister?”

“Hmph. If that's how we're playing, then how could she reject this?” Celestia suddenly pulled the robes she was wearing open, baring her massive bosom, barely constrained by a bra that could hold basketballs. The robe fell to the floor, exposing the rest of her bronzed skin and thick, amazonian figure.

Luna just scoffed at the display. “Thou compensate for thy plain body with ridiculous proportions. Thy oversized figure is merely a novelty.” Twilight hated to admit it, but she had a point there. Luna posed, letting the warm candlelight highlight her pale, svelte yet plentiful curves that Twilight suddenly wanted to run her hands all over. “Admit it, Sister, thou are defeated.”

“A matter of opinion,” she replied. “Since we cannot agree on this front, then onto the next. I put it to you that having over a thousand years more experience than you makes my ability to pleasure her unmatchable.”

“A thousand years of clumsiness remains clumsy,” Luna countered. “But we need not debate.” She turned to Twilight, who'd spent the last minute gawking at the sisters without a single higher thought running through her brain. “We have a judge we may turn to.”

Celestia followed her gaze. “Very well,” she declared, just as Twilight was shaken from her daze.

“Wait, what's going on?” she squeaked out, noticing the looks the two princesses were giving her.

Wordlessly, they put their hands on her shoulders and maneuvered her to Celestia's bed, pushing her onto her back. Her heart rate just about tripled when she realized that the two princesses were about to go down on her. By the time they settled onto the bed on either side of her, she was already so wet, she couldn't care less about foreplay.

But they could, apparently. Celestia's hands drifted over her stomach and tits like scraps of silk blown around by wind, while Luna similarly tickled her thighs, inside and out. Clearly, she had been executed on the spot, and she was now in heaven. She clenched a handful of bedsheet when Celestia lightly pinched her rock-hard nipples and Luna spread her lower lips apart. Then they began kissing her skin. Twilight didn't even try to stay lucid—her body just went slack, and her mind blank. After about a minute, she couldn't which hand or lips was whose anymore.

She only jumped when two fingers curled into her slit. Her head snapped up to see Celestia now in control of her lower body, while Luna let tendrils of her starry hair drift over her chest. Celestia's fingers spread out, stretching Twilight's walls open, prying a squeal from her. She shot Luna a smug look.

Luna just returned it neutrally, and placed a hand above her pussy, in the middle of the well-trimmed patch of hair. Twilight frowned. “What are you...”

She trailed off when Luna suddenly blasted her crotch with a surge of magic. She couldn't feel anything, but it looked like her flesh was melting. Twilight was too shocked to react, though Celestia just pulled back with a look of annoyance.

Luna then reached into her gooey groin, grabbed a handful of her, and pulled. Twilight stared slack-jawed as before her eyes, Luna formed a column out of her solidifying flesh. In seconds, her groin was back to normal, except for the huge cock sprouting out of it, complete with a ballsack.

Twilight just kept staring for a while. Luna giggled. “We realize this sensation must be new to thee...”

“Flesh-shaping!” Twilight blurted out, interrupting her. “That was flesh-shaping! I didn't even know anyone could do that anymore!”

“Well... yes, it was,” Luna mumbled, stunned by her outburst. “But surely thou art more intrigued by the... augmentation?”

“What, the cock?” she asked, looking up from poking her hardening shaft. “No, I'm used to that.”

“...Truly?”

Celestia giggled into her hand. “Flesh-shaping has been a barred art for about four hundred years now. These days, we make do with transformation spells on strap-ons, which are much more accessible.”

“Well, illusion spells more so,” Twilight added. “I'm pretty sure you're the only one I know who still uses a true transformation spell for that.”

“'Strap-ons'?” Luna repeated.

“Wait, they didn't have strap-ons a thousand years ago?” Twilight asked. “They relied on flesh-shaping? How can that be practical? No wait, lesbians weren't nearly as common or as open back then, so I guess—EEP!”

Celestia cut her off with a well-timed squeeze of her cock. “Think of a dildo you wear,” she said, answering Luna's question. “You'll doubtlessly see for yourself shortly. For now...” she trailed off, turning back to Twilight, “I believe we were in the middle of something.”

Her hand suddenly moving, pumping Twilight's shaft with slow, sensual movements, drawing a breathy gasp from her.

Luna watched for a few moments, before tsking. “Art thou always so dispassionate, Sister?”

“Excuse me?” Celestia snapped back, not altering her pace on the cock.

“Do you believe intercourse to be some precise procedure one must follow carefully?” Luna reached out with one hand and cupped Twilight's ballsack. She shuddered at the unfamiliar sensation—most of the time she had a cock, it didn't come with balls, after all.

Luna continued, “Twilight's flames of desire have long been stoked. Now is the time for action!” Her other hand suddenly shot out and jammed two fingers deep into dripping wet slit hiding under the balls. Twilight cried out, a mini-orgasm suddenly wracking her body, curling her toes and fingers. Then Luna rapidly withdrew her hand and shoved it back in with another finger, and the again with her pinky, pushing until hers knuckles were spreading the slit. Both times, like waves crashing onto a beach, more surges of pleasure, with only hints of pain, rushed through Twilight's body, piling on top of the aftermath of the previous ones.

She felt Luna pull back one more time, and took a deep breath, wriggling her hips in anticipation. She wasn't disappointed. Luna's hand shoved forth with her thumb tucked in, jamming in her entire hand to the wrist. Twilight threw her head back and screamed her pleasure. Her new cock throbbed in Celestia's hand and shot out strings of semen into the air that splattered back onto her breasts and stomach.

An impressive volume of cum later, Twilight's body finally went limp. Celestia frowned at Luna. “Sex may not be a 'precise procedure',” she said, “but neither is it a race.”

“How fortunate for thee, for if it were, thou would have lost,” she retorted, pulling her soaked hand out of Twilight. She started licking her wrist.

Celestia just made an annoyed grunt and turned back to her student. She was still nearly comatose, staring into the canopy of the bed, but her dick was still rock-hard. Impressive. Unlike transformed or disguised strap-ons, flesh-shaped cocks behaved much like a true male's in every aspect (except when the testicles were intentionally made sterile, which was often the case), so she was pleased to find it still ready for action.

She wiped a finger along Twilight's stomach, catching a trail of her still-warm cum, and then licked it off, savoring the taste in her mouth. That certainly was the genuine cum, made by genuine testicles. Her student may have preferred quantity over quality, but for Celestia, the transmuted cum Twilight's—or even her own transformation—spell produced couldn't hold a candle to this.

She concentrated slightly, unhooking her bra with a brief, yellow aura, and let the straps slide off, letting her mountainous melons bounce free. Tossing the bra aside, she settled herself between Twilight's legs and leaned forward. Luna, still licking her hand, watched as she surrounded the throbbing shaft with her breasts. Celestia gathered some more cum off of Twilight's body, then slathered her cleavage with it.

Twilight chose this moment to rejoin the world of the conscious. “Oh, wow. That was really...” She broke off and looked down. “...Princess?” she asked, just as Celestia grabbed hold of each breast and squeezed them together, mashing them around Twilight's dick.

She could only throw her head back and groan. Her cock was pretty big, but Celestia's boobs were big enough to completely envelop it, only letting the head poke out into the relatively cool air. Celestia chuckled, rubbing her huge breasts against each other, with the dick stuck between them. Eventually, she started to pump them up and down together, Twilight's lower head disappearing completely into the valley on every upstroke.

Twilight's hands stopped clutching at the bedsheets and made their way to her own still cum-soaked tits. When was the last time she had a boobjob? Was it with Pinkie? Her big, soft boobs had squished around her wonderfully, and Pinkie herself was so enthusiastic about using her assets in such a “fun” way. No, her last time was with Applejack. After getting railed from behind hard and taking the strap-on back, she shot the idea at the farmer. Applejack had been hesitant at first, but quickly warmed up to the idea. Somewhere along the line, they had put Applejack's plaid overshirt back on her, and then Twilight was straddling Applejack atop a haystack, both gripping each others' hands, while Twilight furiously thrust through her cleavage, which was only held together by the knot the shirt was tied into.

Dimly, Twilight pondered how odd it was that she was reminiscing about her friends while she was getting a boobjob from Princess Celestia.

Suddenly, Luna crawled over her and sat just above her tits. Twilight simply moved her arms out of the way and began clutching at her pale ass, content to gaze at Luna's soft-looking folds and pucker. Celestia, meanwhile, shot her a dirty look when Luna reached into her cleavage, gripping the end of Twilight's cock between two fingers, and pulled, an indigo aura extending the impressive length even further. Twilight squeaked from behind Luna as she bent over and slipped her lips over the throbbing head.

Celestia, of course, was silently fuming. This was the third time she'd been hijacked by her upstart sister. She didn't let her focus on pleasuring Twilight waver, though, even as she plotted retribution. Luna's time would come soon enough, she thought grimly, as she slowed an upstroke to jiggle her mounds around Twilight's cock, only to slam them down.

Luna, meanwhile, stopped bobbing her head and leaned back, letting Twilight pop free of her mouth. She licked at the crown, then started to bring her head down, latching her lips to the side of the shaft. She went back and forth a few times, sucking up the fluids slathered over the length (which included the cum and sweat from Celestia's cleavage, if she though about it), before her head bumped into Celestia's on the way back.

Pulling away, she saw that her sister had commandeered Twilight's lower head for herself and was now sucking it expertly, not letting it interrupt her boobjob. She shot Luna a cheeky wink.

Luna pouted, pulling her drifting hair behind her shoulders. Steeling herself, she returned to Twilight's shaft, set on reclaiming her lost territory.

Only a minute of oral warfare later, Celestia could feel Twilight's shaft throbbing in her deep cleavage. Her student's voice, which had been mostly quiet, was suddenly spiking in volume. She was going to cum.

Her eyes met Luna's, and they realized they had both reached the same conclusion. In one rapid movement, Luna shoved Celestia's head away with her own and clamped her lips over Twilight's cock, just in time to catch the first spray. She swallowed and shoved her head further down, not minding that her own face was now in her sister's cleavage. A win was a win. Perhaps she should celebrate with a facial at the end...

Then Celestia's hand struck her left ass cheek like wrecking ball, marking it red with its force. Luna's throat seized up around the thick shaft, even as cum kept flooding it. She was forced to yank her head back and cough up cum as quickly as possible. She didn't miss Celestia taking up her slack, jamming her own mouth down the dick. Her cheeks inflated as she held the cum in her mouth, letting the excess dribble past her lips and down to her breasts. She looked up at Luna, her strained lips working themselves into a smug grin, then let the head pop loose.

Luna only shut her eye just in time for the last spurt to shoot into her face. Wiping the cum away, she growled and got off of Twilight's body. With one last lick of Twilight's cock, which was now shrinking to its original size, Celestia swallowed and matched Luna's movements.

“How was that for taking action?” Celestia asked smugly, slowly massaging the cum into her vast bosom.

Luna just scowled.

“Anyway, I believe that we are tied at the moment.”

Her scowl deepened, but she didn't argue. “Then the next shall be the deciding battle,” she stated.

“Naturally,” Celestia agreed. She snapped her fingers, and then eleven-inch strap-ons, complete with balls, appeared on both herself and Luna.

Luna looked down at hers, prodding at it with a finger. “So this is a strap-on? Hmm, accessories have certainly changed since our time.”

Celestia snapped her fingers again, and both dildos suddenly took on more skin-colored hues, the straps vanishing into their skin. Luna poked at her now transformed penis. “We see what thou mean,” she said, impressed. “That was much more simple than flesh-shaping, and nearly as accurate!” She looked up suspiciously. “Thou hath not given us a hidden handicap, hath thou?”

“Of course not!,” Celestia scoffed. “Are you implying I might need one?”

Twilight, meanwhile, now awake from her second post-orgasmic daze, took the time to compare both princesses. She marveled at the fact that they were sisters, when they seemed as different as—well—as night and day. Celestia's own sun had baked a deep tan into every inch of her body, regardless of whether or not the sun could realistically regularly reach that inch, while Luna was nearly as pale as her own moon; each skin tone contrasted starkly with their wings. Both of them were tall, the top of Twilight's head only coming up to Celestia's shoulder and Luna's chin. As they had discussed, the size of Celestia's thighs and especially her breasts were nearly beyond belief, while Luna had a lithe, but still generous figure—like Rarity with a bit of Fluttershy and a bit of Pinkie. Both were oddly bare of any body hair. Celestia's tits had a slight sag (which still made them ridiculously gravity-defying) and her nipples soft and puffy, while Luna's couldn't be more perky and pointy.

Twilight's silent examination was interrupted when the princesses turned to her. “Twilight, stand up,” Celestia commanded. She immediately obeyed, clambering to her feet, still on top of the bed. The sisters approached, climbing onto the bed and knee-walking around her, Celestia in front and Luna behind. Their cocks pointed straight at her in a way that would've been intimidating if she weren't so excited!

Celestia put her hands on Twilight's shoulders and pulled her down. Looking down, she could see magic auras holding their erections, positioning them for when...

She gasped. There was barely any resistance as both shafts slid into her pussy and her ass. The former, she understood, but did she somehow miss Luna lubing herself up? Her thoughts were soon banished as she kept sliding down, bending her knees further, until they were both hilted deep inside of her. She let out a deep breath, leaning into Celestia's cum-soaked bosom. Her knees still weren't touching the bed, but her weight was completely supported on the dicks and Luna's hands clutching her ass.

Luna was the first to begin thrusting, driving a quiet squeak out of Twilight, and Celestia followed suit soon after. Twilight threw her hands around Celestia's body and squeezed as they each pumped into her. Her own hardening cock rubbed along Celestia's slick stomach. On their knees, the princesses couldn't thrust far, but they made up for it with sheer, ball-slapping force in every movement. Luna leaned in to nibble the back of Twilight's neck. When she curled her head back, Celestia bent down to kiss her ear.

Twilight wasn't sure how long it had been. At the moment, the princesses had matched their movements, driving their shafts all the way into her together, before slowly drawing halfway out. That would change soon. Celestia was slow, but steady and powerful, where Luna favored quick strokes and variation. Their eyes were shut, letting them focus entirely on the raw, primal sensations. Twilight's head lolled to the side. Coincidentally, Luna just then tried to nibble her left ear at the same time Celestia did.

They stopped thrusting, and their eyes snapped open. Princess Celestia and Princess Luna jerked away from each other, staring in shock.

Twilight looked up, confused and distraught. “Princess? ...es? Why did you stop?” she asked.

They didn't answer, continuing to stare at each other as if seeing each other for the very first time. They licked their lips slowly.

There was a rush of movement, and Twilight found herself pulled free of the cocks she'd been enjoying and unceremoniously dumped to the side. “Wha—?” Her voice cut off when she looked back at the princess, and then she tried to permanently sear the image into her memory.

They had their arms wrapped around each others' backs, highlighting the sharp contrast of their skin tones. Each of their shafts was pressed between the others' shaft and belly, leaking pre-cum. Celestia's breasts, naturally, didn't so much as squish Luna's as they consumed them. And despite the masses between them, both princesses were locked in the most passionate, almost desperate, kiss that Twilight had ever witnessed. Their great, majestic wings spread out behind them only enhanced the heavenly image.

Their lips were mashed together, and it was only seconds before Twilight could see their tongues worm out around each other. Celestia moved a hand up to Luna's head, pulling her closer. Luna copied the movement, and also moved her other hand to kneed at the top of Celestia's messy mounds. Twilight could now see the shape of their tongues exploring every corner of the others' mouth and teeth, freely exchanging saliva. To be honest, their kiss seemed to had skipped straight past making out, and into the realm of eating each others' faces, and yet, remained inexplicably graceful doing so.

Twilght's gaze wandered south. Celestia's other hand had migrated to Luna's ass, massaging the still-red mark she had made, but Twilight was now focused on their mighty erections as the princesses ground furiously against each other. The flow of pre-cum had gone up from a dribbles to streams which were now thoroughly lubing their desperate movements. Twilight's hand wandered down to her own throbbing shaft.

Finally, the Celestia and Luna's lips parted, and they moaned together as their interlocked shafts painted the bottom of their tits and their stomachs white. Twilight was stunned, and not just by the volume. That couldn't have been more than half a minute of grinding! They didn't get that close while double-teaming her, did they?

The princesses were locked in each others' steamy gaze as they panted like they had just finished a marathon. Then, as one, they got onto their sides in opposite directions, facing each others' nethers, and began pumping their heads over the others' still-hard cock. They handled each others' size masterfully, even as they pumped their hips deep into the others' throat, massing their balls and pussies with their hands in the meanwhile. Occasionally, they would pull off the others' shaft and crane their heads to lick the soaking wet pussy underneath.

Twilight bit her lip, her own cock spewing another burst of cum on her own body as she stroked it furiously. As she let out a breath, the princesses suddenly tensed up, their throats swallowing... Again? That was twice in one minute! And again at the same time! And still, they were already moving, rising back to their knees, clutching their hands together, and sloppily exchanging bulging mouthfuls of cum. It was like watching porn fast-forwarded about twenty times, Twilight marveled.

Then Celestia pushed Luna onto her back and crawled over her. Their lips never parted for more than a second, even as Celestia reached down, grabbing her own cock, and shoved it under Luna's ballsack. Luna's arms reached up and looped around her back. They gazed at each other with an odd serenity as Celestia slid forward, penetrating her smaller sister, until her balls were pressed against her ass.

For the first time, they were absolutely still, quietly taking in the sensations. Then, ten seconds later, Celestia was pounding into Luna with loud, wet slaps. Whenever their lips weren't muffled by the others', they moaned blissfully into the air as Twilight rapidly fingered herself, as her erection was starting to feel sore.

They took longer to climax this time, but only by a minute. Luna's legs locked around Celestia's waist, holding her in all the way, and at the same time, Celestia bent over, taking the tip of Luna's bouncing shaft into her mouth. They shuddered, and Celestia's throat swallowed furiously. Eventually, she pulled away, her cheeks bulging again, and slowly slid her cock out of Luna's pussy, unblocking a small stream of cum. Celestia moved so that her head was above Luna's. They both opened their mouths, and cum fell like a waterfall from Celestia's to Luna's.

Twilight groaned quietly, wishing she could taste some of it for herself. Really, she wanted nothing more than to jump at the sisters and start licking all of the accumulated cum off their bodies, but it seemed a little too... private for that. She vaguely wondered if her own lust for cum was indirectly learned from Celestia.

Celestia had now grabbed Luna's ass and hauled it into the air, so that her sister's legs rested over her shoulders, and pushed her balls out of the way to begin eating out her own cum from her snatch. Luna groaned, but quickly threw her weight to the side, toppling Celestia. She then climbed on top of her sister's body in a mirror of their previous position, with Luna aiming her shaft under Celestia's balls.

Celestia swished around some the cum she still had in her mouth. “Don't you want some, Sister?” she asked, her voice muffled. Twilight realized that those were the first words either sister had spoken since this had started, and was somewhat stunned. Seriously, three simultaneous orgasms in multiple positions in three minutes, without a word exchanged? Was this just how princesses had sex?

Luna just giggled, and licked the very top of the valley between Celestia's mounds. “Give it here,” she said huskily, then thrust into her sister.

Celestia gasped in bliss, opening her mouth, and cum dripped down her chin to her chest, trickling to where Luna was waiting. She happily licked up the mixture of juices, as she began fucking Celestia in earnest. Some of Celestia's cum leaked down Luna's ballsack.

Twilight screwed her eyes shut, stroking her own shaft at the same time she fingered her gushing snatch. A few tendrils of magic cupped her boobs and her unfamiliar balls. And to think, only minutes ago, she was worrying about a death penalty. Now, she was watching the princesses of Equestria, sisters, fuck each other into the sheets.

Luna latched her lips onto one of Celestia's puffy nipples, tweaking the other with a hand as she continued pounding into her pussy, loving the hot, silky walls of her sister. Celestia wrapped her arms and legs around Luna's body, holding her close, while her own cock throbbed between Luna's hanging breasts. She glanced up, and on seeing her masturbating student, jumped as if she had completely forgotten Twilight was there.

After a second, she looked back down at Luna. “Sister, I believe we've forgotten something.”

“Hm?” Luna, without releasing Celestia's nipple, followed her gaze. She pinched it lightly in her teeth and pulled away, before letting it pop free. “So we have,” she said simply. “I believe she can be put to use cleaning us up.” Her mouth then went for the other breast.

“Now that's an idea,” she sighed, still enjoying Luna's shaft ramming into her more and more rapidly. She rose her voice. “Twilight!” she called.

Twilight's eyes snapped open, and her body spasmed with another orgasm. More surges of cum, both male and female, spewed over her hands. She panted for a moment, then realized that she had been called.

“Y-Yes, Princess?” she blurted out, sitting straight at attention.

The princesses tensed up once again. Twilight could see more cum spurting between their bodies, and leaking from under Celestia's ballsack. They relaxed for a few moments, before Luna released her sister's nipple again. “Do not let our ejaculate stain the bedsheets,” she ordered.

Twilight bit down a squeal of glee. “Right away, Princess!” she replied, and immediately crawled over to the sisters and ducked her head down to where they were joined. She dragged her tongue up from Celestia's puckered ass, where some of the cum had gathered, up to where her lips were stretched around Luna's shaft. She squeezed her tongue inside, licking up as much as she could reach. She then pulled back slightly to suck on Luna's hanging balls.

Luna sighed contentedly. “She is quite eager,” she stated.

“You don't have to tell me,” Celestia said, cupping her face in her hands. She pulled Luna closer, and their lips locked once again.

As they kissed, Luna began to pull out, prompting Twilight to lick her shaft clean as it slid out. When the head popped free, she sealed her lips over Celestia's divine snatch. Her tongue probed her depths eagerly, even well after she couldn't taste any more of Luna's cum. She felt Luna shift around, but her eyes were shut as she focused on Celestia's lower lips.

Then she squeaked when a cock was suddenly shoved into her own pussy. She tried to turn her head, but Celestia's hand clamped down on her and held her in place. Luna set her hands on her ass and started pumping in and out of her, and Twilight's moans were forced into Celestia's muff.

Eventually, Celestia eased her grip and let Twilight raise her head. Their eyes met, and Celestia, smiling softly, gestured at her persistent erection. Twilight happily set to her task of lovingly cleaning her mentor's shaft, licking up it in long, languid motions, even as Luna kept pounding her from behind. Celestia kept pulling her head up her body, letting Twilight lick cum off of her stomach and her breasts.

She was suckling a nipple like Luna had been when Celestia suddenly picked her up and set her upright. Luna stopped thrusting to help catch her, and then the sisters kneeling, holding her between them, almost like the position from before, except Twilight's body was facing the side this time. She looked around in confusion. “Why aren't you...” she trailed off as Celelestia positioned her shaft not at her unoccupied ass, but at her stuffed pussy.

She barely had a chance to gasp before Celestia shoved into where she and Luna were already joined, stretching her wide open. She groaned, throwing her arms around the shoulders of the princess on each side of her. Celestia's thick shaft squeezed in along her sister's slowly, and her inner walls squeezed back at them.

Finally, Celestia was all the way in. All three of them breathed slowly, feeling each others' heartbeats through the heavy throbbing. Then Luna withdrew, sliding away from a tunnel that fought to hold her in. When she reversed directions, Celestia began pulling out. The two princesses started fucking Twilight alternatively, never leaving her completely empty. She was quiet, but her face revealed just how much pleasure she was getting, squeezing her eyes shut and biting her lip.

The world seemed to fade away for Twilight. Nothing mattered except the two divine shafts pounding into her. From the way the sisters clutched onto her and each other, they felt similarly, both about her pussy, and each others' shaft sliding against theirs.

They were fucking her as one again, almost pushing her body up with their powerful, combined thrusts. She opened her mouth and let out a long, shuddering groan as her tired cock weakly spurted cum across all of their chests. The princesses slammed themselves as deep into her as possible, and held on. She could feel her pussy instantly overflowing, far too stuffed to contain anymore of anything..

They looked down at the completely limp body between them. “We were hoping for more, to be honest,” Luna said as they lifted her off of their shafts.

“She's only mortal,” Celestia told her as they set her flat onto the bed, and draped a blanket over her. “Really, it's impressive she lasted as long as she did, especially after whatever you two did in Ponyville.”

“True.” They stared at her sleeping form, a small smile forming on her lips. “So... our claim to her...”

“You know,” Celestia cut her off, “we made that law a long time ago. We meant for it to protect ourselves from the vice of jealousy, but times have changed since then.”

“...We agree,” Luna nodded, looking straight back at her. “We do not believe that jealousy of our partners is a danger to us anymore. We would do well to end it.”

“That we would,” she agreed, meeting her gaze.

The two sisters held their stares for nearly a minute.

“Much really has changed, hasn't it?” Celestia asked.

“Indeed,” Luna nodded. “Though we do not know if these feelings are new, or if we simply have never realized them.”

There was no answer. Their shared gaze didn't waver. They drifted towards each other and hugged tightly.

“I love you, Lulu,” Celestia said.

“And we love you, 'Tia,” Luna replied.

Their lips and cocks met again.

“Yo Twilight! When did you go to Canterlot? Spike was worried sick when you weren't... Twilight?”

Rainbow Dash watched as Twilight Sparkle practically floated out of the chariot, and straight into the doors of her library, her face frozen in a blissful grin. The driver snapped his reigns, and the pegasi pulled the chariot into the air, turning it back towards the distant spires of Canterlot. The library door swung shut.

Looking back and forth, Rainbow scratched her head. “Did she get laid?” she asked the air. “No, she gets laid all the time... Guess it's something dorky. Like a new book. Yeah, that makes way more sense.”

Author's Note

Princest is best cest. Along with Twicest. And Applecest. Wincest all the way.

Next Chapter: Twilight stumbles into a potion Zecora's been brewing, which transforms her into a horny goo girl. She then pulls in Zecora for some goo-on-girl action.

Question. When was the last time Twilight taught anyone? Hmm...