Author's Note

This story is porn. It is written for the express purpose of sexual arousal and erotic entertainment. As such, the erotic merit of this story will be highly subjective.

The author does not necessarily endorse any of the acts or behaviors presented in this story. Please refrain from ascribing allusions between the fictional narrative of this story and any personal beliefs, proclivities, or biases of the author.

All characters present in this story are 18 or over and legally of age to engage in sexual activity.

Triggers for this chapter: Female on female, BDSM, punishment, (fake) futanari, multiple penetration.

Luna and Celestia Do Sunset Shimmer!

"—detention for two months," Luna finished.

Sunset Shimmer sat in the hard wooden chair in front of the Vice-Principal's desk, a look of miserable contrition on her face. Luna stood by the window, hands clasped behind her back; Celestia leaned against the wall to Sunset's right, arms crossed, a stern expression on her face.

"And that's just to start," Celestia said. "We'll have to see how sincere you are about your attitude adjustment after your two months are up."

"But..." Sunset Shimmer wrung her hands. "Two whole months? When...when am I supposed to find time to do all that making friends with those girls stuff Princess Twilight wants me to do?"

"That's for you and the girls to work out," Celestia said. "You understand that given the severity of your actions, your punishment must be suitably harsh."

"I know," Sunset said miserably.

The idea of two months' detention...frankly sucked. Talk about a way to kill her social life before she even had a chance to create one...

Sunset looked at the two principals, searching their faces, trying to think of any possible way out of her dire situation.

Which, of course, she realized, was her nasty, self-absorbed, walking-the-path-of-the-dark-side self talking.

As she studied the two women, a thought occurred to her. "Umm...maybe...I might have another idea for my punishment," she said.

Luna's frown became more stern. Celestia raised an eyebrow. "Oh?"

Sunset swallowed heavily. "I...I know about...that little hobby the two of you have. You know, on the weekends."

The sisters exchanged a concerned glance. "What...exactly are you referring to, Miss Shimmer?" Luna asked.

"Well..." Sunset licked her lips. "Let's...let's just say that I know your safe word is 'Oreos'."

Luna paled. Celestia turned red. "Are you threatening to blackmail us?" she asked dangerously. "Because if that's the case, I'll expel you this second—"

"No, no!" Sunset cried, waving her hands frantically in a placating gesture. "That's...that's not what I'm saying at all!" She ducked her head. "I mean...yeah, I was...kind of hanging onto that as a trump card, just in case I ever needed it, but—"

"Who else have you told about this?" Luna asked sharply. With a sick look of dread, she said, "Do...do Snips and Snails—"

"HELL no!" Sunset cried. "I mean...no, they don't. I...do have lines I won't cross."

"Do you now," Celestia said in a soft but steely tone. "Spying on your principal and vice-principal in their own home isn't one of those lines, I see."

Sunset cringed. "Well..."

"So if you're not threatening to share our...little secret," Celestia said, "why bring it up at all?"

"Well," Sunset began, "I...I was thinking..." She wrung the hem of her skirt in her hands. "Umm...what if...what if I offered to be your slave for a couple of weekends? You could...you could do whatever you want to me."

Celestia frowned. "Young lady, that is extremely inappropriate!"

Sunset arched an eyebrow. "And the things you do with your own sister aren't?"

Celestia flinched. "Touche," she said sourly.

Luna stroked her chin thoughtfully. "Perhaps this merits further thought."

"Luna!" Celestia gasped, scandalized. "This is one of our students!"

Luna shrugged. "She's old enough to make her own choices."

"Way old enough," Sunset said. "I'm really over twenty, despite looking like this."

"Seriously?" Celestia asked, blinking. "How does that even—"

"As I was saying," Luna said, "we have been looking for something new to try." She strode over to Sunset's side and cupped her chin in one hand. "The idea of a willing young sex slave...it's actually rather appealing, don't you think, sister?" She made a show of studying Sunset. "And she is rather attractive. In all honesty, I'm somewhat jealous of her curves."

Celestia frowned. "Me too," she admitted.

Sunset smiled.

Celestia sighed, running her hands through her hair. "This has bad idea written all over it," she said. "This is the kind of thing that could cause a scandal if it got out."

"So we don't let it get out," Sunset said with a shrug. "If anybody does see me going to your house, we can say I have weekend detention."

Luna tapped her cheek with a finger. "It's plausible," she said.

Celestia leaned forward. "Sunset Shimmer...if you do in fact know what Luna and I do in private—" she frowned deeply at that. "—then you know our, ah...fun can get rather intense."

"And painful," Luna added.

Sunset shrugged. "Do your worst," she said. "At least it won't be as boring as sitting in a stuffy classroom every afternoon for two months."

"Punishment is supposed to be boring and tedious, young lady," Luna said.

Sunset raised an eyebrow. "That thing you did with the car battery didn't look boring," she said. "Actually, it looked pretty painful."

"Oh god, the car battery," Celestia said with a sick grimace. "Yeah, we're so over the car battery." She sighed and shook her head. "I can't believe we're even having this conversation."

"I don't know, Tia," Luna said with a faintly evil leer. "I'm suddenly looking forward to introducing Miss Shimmer to Mr. Licorice."

"Well, that would certainly qualify as punishment," Celestia said. "You'll have to be careful about leaving visible marks on her, of course..."

"So," Sunset said cheerfully, "tomorrow, at your place?"

Luna and Celestia exchanged a glance. Celestia sighed and nodded. "Very well," she said. "Report to our house tomorrow morning for your weekend detention."

* * * * *

Saturday morning found Sunset naked and strapped to a padded table in the parlor of Celestia and Luna's house. The curtains were drawn, and several low-light lamps shed a soft glow over the room. Soft classical music played from hidden speakers, and a pleasant scent of vanilla and plums wafted from heated air fresheners.

Luna and Celestia stood over Sunset. Luna wore a corset, thong, thigh-high boots, and elbow-length gloves, all made of shiny black leather. In one hand, she held a long, black leather whip which she caressed lovingly. Celestia wore a similar outfit, but in red satin; rather than a whip, a rolling table stood beside her, with a tray on top that held a variety of instruments Sunset was certain would soon be used either on or inside her body.

"She has such perfect breasts," Luna said. "It's not fair." She looped her whip around one of Sunset's breasts and began pushing and pulling it this way and that. Sunset's breath hitched.

Celestia pulled off one of her gloves and stroked Sunset's thigh, then slid her hand up to Sunset's sex. She softly caressed Sunset's mound before gently teasing open her pussy and stroking her inner folds. Sunset let out a gasp and shivered, goosebumps prickling all over her body. "Oh my, she's very sensitive," Celestia said. She picked up a small purple vibrator from her tray, turned it on its lowest setting, and rubbed it against Sunset's inner lips and clit. Sunset gasped loudly, arching her back and thrashing around.

"I kind of want to break out our special toys right now," Luna said longingly.

Celestia shook her head. "No...there's plenty of time for that later. For now, let's just enjoy her. There's so many things we can do to her..." She turned up the vibrator and jammed it against Sunset's clit, eliciting a startled squeak. Celestia smirked and fondled Sunset's ass as she teased her with the vibrator.

"Mmm, indeed," Luna said. She caressed her whip, then uncoiled it and took three steps back. "Well then, Miss Shimmer...let's get you acquainted with Mr. Licorice!"

Sunset gulped and braced herself.

Luna drew back the whip, then snapped it out with the speed of a striking cobra. It cracked against Sunset's left nipple, sending her breast wobbling. Sunset screamed in pain.

"Luna," Celestia said tiredly, shaking her head. Sunset's breast had an angry red mark on it, already beginning to fade. Celestia smiled at Sunset. "She does tend to get a bit carried away," she said apologetically. "I mean, I want to hear you scream in pain as much as she does, but there's just no build-up the way she does it."

Sunset whimpered.

"Whip her later," Celestia said to Luna.

"Very well," Luna said, laying her whip aside. She took hold of Sunset's breasts and spent a long moment fondling them, pinching and twisting her nipples. "I really am jealous of your breasts," she said. "Look at her nipples, Tia! Look how perky they are!" Chuckling, Luna picked up a pair of plastic clothespins. With a malicious smile, she clamped the pins onto Sunset's erect nipples. Sunset cried out. Smirking, Luna picked up a long, tapered red candle. "Do you like candles, Miss Shimmer?"

"Oh God," Sunset moaned.

Luna struck a match and lit the wick, holding the candle up so Sunset could see the bright little flame at the tip. "Now, let's play a little game..." She held the candle at an angle and slowly began moving it in a circle above Sunset's torso. Sunset followed the candle with nervous eyes.

Celestia took a push pin from the tray beside her and pressed the tip against Sunset's clit. Sunset yelped, twitching away from her, struggling against her bonds. With a smile, Celestia slowly, carefully dragged the sharp point of the pin across Sunset's clit, closing her eyes and purring at every gasp, scream, and curse Sunset let out.

Just as she decided Sunset had had enough time with the pin, the first drop of wax from the candle landed an inch above Sunset's navel. She cried out, screwing her eyes shut.

"Aww...does it burn?" Luna asked mockingly.

Sunset forced her eyes open and looked up, swallowing nervously as a second drop of wax fell, landing directly between her breasts. She choked back a sob.

"That must burn," Celestia said. "Let's cool you down a little." She reached into a small bowl on the tray and picked up an ice cube. She rubbed it against Sunset's mound. Sunset yelped and squeaked, eyes flying open as she stared down at Celestia.

"What—?"

Celestia spread Sunset's pussy lips wide and pressed the ice cube into her opening, pushing it completely in.

Sunset screamed. "GAH! GET IT OUT! GET IT OOOOOOUT!" she started crying brokenly, thrashing and shaking.

A drop of wax landed on her breast.

"If you want it out, you'll have to melt it out," Celestia said. "Your pussy is already so hot and wet...it shouldn't take long."

Sunset sniffled, trembling. Tears streamed from her eyes.

Another drop of wax landed on her shoulder.

"That's enough wax, Luna."

"Yes, Tia." Luna blew out the candle and put it away.

Sunset tensed up, whimpering as the burning sensation of the cooling wax and the freezing sensation of the ice in her pussy slowly equalized out. A slow trickle of water dribbled out of her pussy as the ice melted from her body heat. Gradually, Sunset relaxed, sniffling.

"All better?" Celestia asked. "Good. Now...before we go any farther, there's one little matter that needs to be addressed." She ran a finger through Sunset's curly pubes. "I don't really care much for pubic hair. Do you, Luna?"

"Not especially."

Sunset's breath hitched as Celestia slowly, deliberately shaved her pubes, applying perhaps a bit more pressure than was required.

"There," Celestia said with a smile. "Now we can finally get started."

"Get started?" Sunset asked. "What...what do you call all this?"

"Well, you know how your ex-boyfriend Flash has to tune his guitar before a show?" Celestia asked. "I call it that."

Sunset swallowed heavily. "Oh God..."

* * * * *

Sunset hung suspended from a metal hook on the ceiling to which the handcuffs binding her wrists had been attached. She could just touch the floor with the tips of her toes if she stretched as hard as she could. Her ankles were bound with electrical tape.

"Now, we're going to play a little game," Celestia said as she and Luna circled Sunset like a pair of hungry sharks. "Luna and I will be taking turns. When it's my turn, I will ask you a question. If you don't give me an honest answer, we'll punish you. It's up to us to decide whether or not your answer is truthful. When it's Luna's turn, she's going to tell you a truth about yourself. And then she's going to punish you."

Sunset wriggled around. "So this is what, psychological and physical torture?"

Luna's whip snapped against her midsection. "SHUT YOUR FILTHY COCK SUCKING MOUTH, YOU DIRTY LITTLE WHORE!"

Celestia coughed delicately. "Thank you for that demonstration, Luna. Now, let's begin." She moved to stand in front of Sunset; Luna stood behind her. "First question: Did you fuck Snips and Snails to get them to do your bidding?"

"What?! NO!" Sunset cried.

Celestia looked past Sunset's shoulder. "Do you believe her?"

"Yes," Luna said. "No woman alive has so little respect for herself that she would spread her legs for those hideous little urchins." Celestia and Luna exchanged places. Now standing in front of Sunset, Luna screamed, "EVEN IF SHE'S A WRETCHED LITTLE TRAMP THAT CAN'T RESIST SUCKING EVERY DICK SHE SEES!" She snapped the whip twice against Sunset's hips.

"I do NOT!" Sunset cried.

"LIES!" The whip struck her right in the mound; she screamed.

"Alright, Luna, enough. My turn." The sisters traded places again. "Second question: How did you get those two dipshits to obey you?"

Sunset bowed her head in shame, tears rolling down her cheeks. "I strung them along," she admitted hoarsely. "I let them believe maybe someday I'd have sex with them."

Celestia sighed. "That's pathetic," she said. "But...you wouldn't be the first woman to do that."

Once again, Luna moved to stand in front of Sunset. Sunset flinched in anticipation of the screaming and the whip. "NO ONE WILL EVER LOVE YOU! YOU'RE GOING TO BE SOME MAN'S PLAYTHING UNTIL HE GETS TIRED OF YOU AND THROWS YOU AWAY LIKE GARBAGE!" The whip caught Sunset along the side of her left breast.

Sunset hung her head, crying freely.

"Third question," Celestia said softly. "Were you just using Flash Sentry when you were together?"

"Yes," Sunset whimpered.

"YOU'RE WORTHLESS!" Luna bellowed, whipping Sunset in the left armpit.

"Last question," Celestia whispered. "Are you truly sorry for everything you've done?"

"Yes," Sunset said hoarsely. "I am. I really am."

The whip bit into her ass. She flinched. "I MEAN IT!" she yelled. "I'M SORRY!"

Again, the whip struck her ass.

"I'M NOT LYING! I'M SORRY!"

"I know you are," Luna said.

The whip struck again, then again, then again.

"That's enough, Luna," Celestia said.

Sunset hung her head, hot tears pouring down her cheeks.

Celestia lifted Sunset's chin. "We're going to go have lunch now," she said. "We'll leave you here to think about things. But before we go..."

Luna fitted a ball gag into Sunset's mouth, securing it tightly. Celestia held up a large, purple dildo with a clear gel tip and a white handle. She gave it a slow, sensual lick, then rubbed it against Sunset's pussy. Sunset squirmed. Luna forced her thighs apart, and Celestia shoved several inches of the toy into Sunset's sex, then turned it on. Sunset squirmed and whimpered as it writhed and buzzed inside her.

Then she felt a wet pressure against her asshole as Luna spread her ass cheeks wide and shoved a smaller vibrator up her butt. Sunset let out a muffled cry of surprise and pain as the little toy whirred to life, buzzing against the insides of her ass.

Celestia smiled and patted Sunset's cheek in a motherly fashion. "See you in a couple of hours," she said. The sisters left, closing and locking the door behind them.

* * * * *

Sunset hung suspended, face-up, from a complex array of ropes, bound in the Neighponese shibari style. Her arms were tied behind her back, with her wrists tied tightly; ropes encircled her torso just above and just beneath her breasts. Her ankles were tied to the lower set of ropes, bound tightly together; this bent her knees back as far as they would go and forced her thighs apart.

Celestia and Luna had tied her up and then left the room, promising to return shortly. Almost an hour had passed since then.

The door opened again, and the two women entered. Both were nude.

Both sported huge, erect dicks.

"What the—?!" Sunset gasped, jaw dropping.

Celestia smiled. "Do you like them?" she said, gesturing at her cock. At Sunset's confused, horrified expression, she laughed musically. "Oh, they're not real," she said, waggling hers back and forth. "My sister and I had these custom-made. They were quite expensive. We had to have them custom-fit so that the straps would be invisible, then color-matched to our skin tones." She walked up to Sunset and rubbed the false cock against her breast. "Feel that? The same texture as a real dick. They even have a special feature..." She smiled secretively. "Well, you'll see soon enough." She shifted to stand directly in front of Sunset; her strap-on bobbled in front of Sunset's mouth. "I think you know what to do," Celestia said, even as Luna walked around to stand behind Sunset.

Gulping, Sunset opened her mouth. Celestia gently held her head as she guided her false cock into Sunset's mouth.

"Now, Miss Shimmer," Luna said, "for the remainder of this exercise, as far as you are concerned, my sister and I are in fact possessed of genuine penises. You are to treat these instruments as though they are part of our bodies."

Sunset felt the tip of Luna's dick rub against her pussy.

Celestia thrust her cock deep into Sunset's mouth; Sunset gagged and tried to pull away. "Suck it good," Celestia said. "Suck it like you'd suck Flash Sentry off if you wanted something from him."

Shamefully, Sunset dragged her tongue along the length of the very realistic vein on the underside of Celestia's dick, which slipped in and out of her mouth with smooth, even strokes.

Luna took firm hold of Sunset's hips and penetrated her, driving her cock as deep as it would go. "Mmm...you're surprisingly tight, Miss Shimmer," Luna said as Sunset let out a cry that was muffled by Celestia's dick. She wriggled around, testing Sunset's pussy and making her shudder, then pulled out slowly, waiting almost three whole seconds before suddenly, sharply hilting herself.

Sunset's scream came out as a cock-muffled squeak. Her breasts bounced with the force of the thrust. Celestia reached out and seized one of Sunset's breasts, kneading it roughly as she fucked Sunset's mouth. "God, you're a hot little bitch," Celestia said.

Sunset closed her eyes and grunted as the sisters fucked her forcefully. After several minutes, something happened she was not expecting:

Celestia's dick exploded in her mouth, spraying thick seed down her throat. Celestia stepped back, letting her cock fall out of Sunset's mouth with a slick, wet pop.

"What..." Sunset coughed. "What the hell?" She turned her head and spat cum onto the floor, then cried out as Luna started fucking her harder and faster. "Ah...! AH! Not so...not so hard! Ah! AAHHHH!"

And then Luna came.

As Luna pulled out and stepped back, letting her cum dribble out of Sunset's pussy, Sunset stared at Celestia. "How...if they're just strap-ons...?"

Luna slapped her hard on her mons. "What did I tell you?!"

"It's okay this one time, Luna," Celestia said. She walked over to the desk, spit and semen hanging in thick, stretchy strands from her appliance. She picked something up and held it up for Sunset to see. "Our strap-ons are very special," she said. "They're fitted to accept these lovely little capsules. They're full of artificial semen...it simulates the texture, taste, and smell of the real thing, but of course contains no actual sperm. They're designed to burst forcefully when sufficient pressure is applied."

"Like the same amount of pressure it takes to make a man come?" Sunset guessed.

"Exactly!" Celestia beamed as she opened a well-hidden compartment on her strap-on and inserted a new capsule. Luna walked over to the desk, took a capsule, and reloaded her own.

"Do you think we have enough, sister?" Luna asked.

"We should," Celestia said. "We'll probably need to make a trip to the shop before next weekend and restock." Celestia made some adjustments to the ropes suspending Sunset, lifting her so that she had access to her ass. "Have you ever had anal sex, Sunset?"

"No," Sunset whimpered. "Wait...don't—!"

Sunset screamed as Celestia rammed her cock up her ass.

"OH GOD!" Sunset cried. "Stop! It hurts!"

"This is your punishment for blowing up my school, you little demon bitch."

Luna stood over Sunset's face, stroking her own dick vigorously with one hand as she watched Celestia fuck her. Sunset screamed and cried as she bucked and swayed with the terrible, violent force of the pounding Celestia was giving her. "We really should've set up cameras for this," Luna mused.

"What? No!" Sunset yelped.

"No, Luna," Celestia said. "This is not exactly the sort of behavior we want there to be video evidence of. We'd be fired, disgraced..." She looked down at Sunset. "Probably arrested," she admitted as she gave Sunset a particularly hard, sharp thrust.

"True," Luna said with a sigh. Her dick shuddered and sprayed a gout of cum all over Sunset's face.

Tears streamed from Sunset's eyes as Celestia came in her ass. She let out gasping, hitching breaths as the sisters began adjusting and untying various knots on her harness. After several minutes' work, Sunset was no longer hanging from the ceiling, but instead was suspended between the sisters. She whimpered as Luna fucked her in the ass while Celestia fucked her pussy. Her breasts bounced and her head lolled; tears poured from her eyes. They pumped her forcefully, hungrily, and mercilessly for several minutes before coming inside her at practically the same time.

After that, they untied her and laid her on the floor. For the next hour, they used Sunset's hands, breasts, and feet to get themselves off over and over again, until Sunset was covered head to toe in fake jizz. Then they tied her wrists and propped her up against the wall, giving her a front-row seat as they fucked each other for another half hour before collapsing in a tangled, sweaty heap.

* * * * *

Sunset grabbed her bag and swung it over her shoulder as she pulled on her boots and stepped out into the late afternoon sun. Behind her, Celestia and Luna stood in their slacks and sweater-vests and smiled at her. "So, Miss Shimmer," Luna said, "we'll see you again next weekend for special detention?"

"No thanks," Sunset said. "I think I'll just do regular detention from now on."

"Aww," Luna pouted. "But we so enjoyed having you!"

"If you ever change your mind, you're always welcome," Celestia said. "As to your detention..." She shrugged. "I think you've learned your lesson." She smiled. "You're free and clear. See you at school tomorrow!"

"Uhh...actually, I think I'm gonna call in sick tomorrow," Sunset said. "I'm kinda...sore." She rubbed her wrists. "And then there's the rope burns..."