Rarity soon arrived home and was about to open the door when Sweetie Belle suddenly opened it for her, much to her surprise.

"Oh! Sweetie Belle! Why…" Rarity started to say, but the wide eyed Sweetie Belle didn't give her a chance to finish and promptly pulled her inside before closing the door.

As soon as Rarity was inside, Sweetie Belle locked the door and started to cover all the windows, all while Rarity watched her with a raised brow.

"Um… Sweetie Belle, darling little sister of mine?" she spoke up. "Do you mind telling me what all of this is about? You said on the phone that it was an emergency…?"

Sweetie Belle got in front of her. "You bet it is! Have you checked your email?! No! On second thought, don't. I don't think I wanna see the look on your face…"

"My email?" Rarity repeated in confusion.

"Ok, obviously you don't know, and I don't know how to say this but… I think someone's trying to blackmail you or humiliate you!" Sweetie Belle revealed.

"Beg pardon?" Rarity inquired.

"The thing is… everyone in school got an idea recently… in that email was a picture… and the picture was of…" Sweetie Belle started to say with a red face.

Rarity's own eyes widened when she realized. "My derriere," she finished.

Sweetie Belle gasped. "So you do know!" she exclaimed. "Oh, Rarity… I'm so sorry this happened! I-I-I mean… I don't think anyone else besides me and the CMC knows… but if you're not careful, then…"

"I was careful." Rarity interjected. "Sweetie Belle, there's something you should know, something that I probably should have told you long ago…"

"Huh? What are you talking about?" Sweetie Belle inquired, confused.

"You see… the thing is… I'm kind of… a…" Rarity struggled to say, sweat running down her red cheeks.

Sweetie Belle tilted her head. "Lesbian?" she guessed.

"No! Well… perhaps… I'm not sure… but that's not it!" Rarity stated. "The truth is… I'm… a butt flashing exhibitionist!"

A long moment of silence passed between the two sisters before Sweetie Belle finally spoke again.

"Huh?" she said.

"Yes, your older sister… likes baring her derriere." Rarity breathed, her shoulders relaxing like she just dropped a huge weight off her back.

"You're messin' with me… right?" Sweetie Belle asked, slowly.

"No… I'm not. I know this is a lot to take in, but yes, I do enjoy… mooning." Rarity confessed.

"You mean… that was…" Sweetie Belle started as Rarity nodded. "Woah… my own big sister… is a pervert."

"You're not going to tell Father, Mother or anyone else are you?" Rarity asked.

"What? No! No, I won't tell anyone, I mean… who would believe me?" Sweetie Belle pointed out. "I just… don't understand… why? You're always so prude and lady-like. Usually you'd turn your nose up at stuff like this. So why do it?"

"Well, at first I did consider it… uncouth, but when I did it the first time… I felt this… this rush! This intense feeling of happiness! It made me feel so alive… I just had to do it more!" Rarity explained somewhat emotionally.

"So… it's like an addiction?" SB inquired.

"Not quite… but admittedly it is somewhat addictive. But because of it, I learned parts about myself that I never knew existed! I began to experiment. Do all kinds of naughty and, shall we say, 'perverted' things… and as I did so… I began to see just how beautiful the buttocks truly are." Rarity said starry eyed.

"Beautiful? How can a butt be beautiful?" Sweetie Belle questioned incredulously. "I mean… it's a butt!"

"Beauty is in the eye of the beholder, my dear sister, and dare I say… My bottom here is quite lovely." Rarity smiled as she looked back and rubbed her own bottom.

Sweetie Belle was stunned that Rarity was saying such things and looking at her own glutes the same way she normally looked at a cute boy.

"Wow… but you were always so self-conscious about your butt, especially with how much break-up ice cream you eat." Sweetie Belle pointed out. "Not that dieting did much good… I mean… how did you get such a huge tushie to fit in a screen like that? Oh! Sorry! I-I didn't…"

"No need to apologize, I actually view that as a compliment." Rarity confessed proudly.

Rarity's younger sister blinked at her. "Huh?"

"Once, there was a time where I was ashamed of my own behind." Rarity admitted, looking at and rubbing her rump with a sad face. "After all, as you've seen, it's not the kind of butt a girl would really want to have… Sometimes, when I go shopping, most clothes don't fit me. It reminded me that my butt was larger than average, and as such caused me great distress… But after some time… I've grown to like it. Even love it."

"That does explain why Blueblood wouldn't stop staring." Sweetie Belle remarked.

"Tell me, Sweetie Belle, would you like to see it?"

"Huh?"

"Would you like to see it up close and in person?"

"You mean…?"

"Yes, I'm certain that, if you just saw for yourself, you'd see just how amazing and beautiful my derriere is!"

"What?! No! I… I can't! It's your butt!" Sweetie Belle exclaimed, blushing.

"Oh, come now, it's not like you haven't seen it before. After all, you were able to recognize it from a photo." Rarity reasoned.

"Yeah, but that's because I know my sister. We may have seen each other naked before, but that was years ago! I don't wanna get an eyeful of my sister's ass!" Sweetie Belle stated, still red faced.

"Are you sure…? Your blush says otherwise." Rarity commented with half-open eyes and a smile.

"Well… maybe… okay, but only for a few seconds!" Sweetie Belle said, firmly.

"Very well. Sweetie Belle, prepare to be mooned!" Rarity declared as she turned around and began fiddling with her skirt.

The freshman scoffed as she folded her arms and turned away with closed eyes. "Please, like you would moon your own…" Sweetie Belle started to say before she turned back to Rarity and opened her eyes, only to be met by the sight of her sister's ivory bottom being presented to her. "Wha… what is this… it's like… a big white peach… and a little peach… wha…?"

With her hands on her bent knees, Rarity looked back at her sister with a smile and a giggle as she bent forward and raised her butt a little higher. She even scooted back a few inches to give Sweetie Belle a closer look.

"Well? What do you think? Is it still just a 'butt' to you?" Rarity inquired.

Sweetie Belle gulped, her face bright red. "Well… I… Wow… That's a big butt…"

Rarity giggled and said, "I know."

The older sister began to shake her butt making it jiggle and causing Sweetie Belle to gasp with wide eyes.

"Wow! It's like jello!" she marveled.

"Why thank you." Rarity said, flattered.

"Wait, why are there two diamonds painted onto both your butt cheeks?" Sweetie Belle asked curiously.

"Oh, heh, well, it's a long story." Rarity said.

"Oh, well um… can I… touch your butt?" Sweetie Belle asked shyly.

Rarity giggled. "Sure. Go ahead."

Slowly but surely, Sweetie Belle moved her hands closer and closer until she finally placed both of her palms on her sister's rump. Both her hands seemed to sink a little into the flesh of Rarity's derriere like dough.

"Woah, that break-up ice cream definitely did wonders for your tushie." Sweetie Belle said in awe while cupping and making both cheeks move. "Just check out this bounce…"

Rarity moaned with pleasure as her sister continued to knead her hiney like balls of clay, even rub one of her butt cheeks with her face cheek.

"Your butt is really sensitive, isn't it?" Her little sister commented. "Hey… something dripped down."

"Ooh~ That'd be my peach's 'nectar'." said Rarity.

"Do peaches even have nectar?" Sweetie Belle asked.

"Why don't you lick it and find out?" Rarity offered coyly.

Sweetie Belle extended her tongue and leaned towards her sister's pussy. Her tongue made contact with her soft skin. The same warm flesh she had felt on her fingers earlier. She licked it, leaving a trail of saliva behind on Rarity's smaller peach.

"Mmm~ how's the nectar~?" Rarity moaned and smiled.

Sweetie Belle licked her lips. "Sweet… and salty too…"

Rarity giggled and shook her ass a bit more enticing Sweetie Belle

"Well, there's plenty more where that came from~." Rarity smirked. "Besides, you ran your tongue up my slit. You have to go all the way now."

As Rarity got down on all fours and Sweetie Belle kneeled down behind her, the younger sister placed her hands on her older sister's ass cheeks, in order to get a better grip of her booty. She kneaded her ass in her hands, getting a feel of her springy butt flesh. Her fingers once again sank into her ass, spreading open her cheeks and getting a look at her puckering anus. It was a bright pink anus, to match the fresh pink insides of her pussy

"Ooh… Sweetie Belle…" Rarity moaned

"Hmm which one should I start with first?" Sweetie Belle mused. "Hmm… I still got that taste on my lips… and I want more."

Sweetie Belle moved her fingers down to Rarity's pussy, spreading it open, looking at her wet, pink folds before letting it close. She stuck her tongue back inside and started slurping and licking loudly. This made Rarity moan loudly, her entire body blushing bright red and sweating in response to Sweetie Belle's licks.

"Ah! Lick! Deep inside me!" Rarity proclaimed.

Sweetie Belle obliged and started licking every part of her sister's pussy, covering every part of her insides. As she teased her clit, Rarity moaned and practically screamed.

"Your breath is… so warm!" Rarity exclaimed.

Sweetie Belle continued to suck, slurp and lick her older sister's private place, with Rarity enjoying every second of it and Sweetie Belle sticking her own hand under her dress to finger herself.

"Oooh~ mmm~ Sweetie Belle, my nectar is…" Rarity began before she finally reached her limit. As Sweetie Belle's tongue got halfway inside of her pussy and Rarity squirted. She raised her ass in the air, spraying Sweetie Belle in the face, before she drank it all up that is.

"Mmmm, tasty, I want more." Sweetie Belle responded. "Please Rarity! Please give me more!"

Rarity smirked. "Very well. But we'd better take this upstairs…"

Rarity then got up, along with her sister, and picked Sweetie Belle up bridal style as she carried her to and up the stairs. Sweetie Belle blushed, not expecting to be carried like this.

After going upstairs into Rarity's room, Rarity set Sweetie Belle gently on her bed before stripping off the rest of her clothes in a sexy manner, while her blushing younger sister watched in awe.

"Wow…" Sweetie Belle commented while her older sister got on the bed and started to slowly crawl towards her.

"Come now Sweetie Belle, you want big sister's nectar~?" Rarity asked seductively.

"Y-Yes… I do." Sweetie Belle nodded. "Rarity… are you sure it's ok for us to be doing this?"

"Of course, we're alone aren't we? And besides… besides your movie club, who's your best friend?" Rarity inquired.

"You are." Sweetie Belle answered.

"Who knows you better than anyone?" Rarity continued.

"You do." Sweetie Belle replied.

Rarity leaned in close to Sweetie Belle's face upon stopping. "And who would be the best person to give your first time to~?" she asked seductively.

"Um… you would?" Sweetie Belle guessed.

Rarity just grinned and locked lips with her sister. Sweetie Belle was surprised at first, but she melted into the kiss, even allowing Rarity to slowly strip her of her clothes.

"Mm… are you sure…?" Sweetie Belle breathed between kisses.

"Yes!" Rarity stated hungrily as she groped her sister's tiny breasts.

"Ooh… But what if we get…?" The freshman began to say.

"Oh, we won't!" Rarity insisted while pulling Sweetie Belle's long skirt off, followed by pulling down her panties, leaving her naked.

"Mmm… okay if you… ahh… say so." Sweetie Belle said.

Rarity then began to kiss Sweetie Belle even more passionately. Sweetie Belle wrapped her arms around her sister's neck to deepen the kiss. This released yet another moan from Sweetie Belle as her sister started to suck and lick her neck.

Leaving behind a hickey, Rarity then drew attention to Sweetie Belle's breasts, now exposed since her shirt was removed. She started kissing around her right nipple, earning her a soft moan from her little sister. She then took her nipple into her mouth while playing with her left nipple with her hand. Sweetie Belle couldn't hold back her moans.

Rarity's hand soon moved to Sweetie Belle's own private place and began to rub it with her fingers. Sweetie Belle was hit with a sudden ecstasy running through her body. She almost let out another moan before Rarity silenced her with a kiss. Rarity continued to rub her sister while making out with her.

Sweetie Belle began to get wetter and wetter as the rubbing continued.

"Oooh, Rarity… I… I feel all… tingly.." Sweetie Belle gasped and moaned.

Rarity giggled. "My, my, getting this wet for your older sister? You're pretty naughty yourself, Sweetie Belle."

"Mmmm, you gave me your nectar… and I want more of it…" Sweetie Belle moaned. "Ah! Rarity…! Oh… If… If you keep doing that, I'll… I'll cum!"

"If I do this?" Rarity inquired teasingly as she moved her finger and out of her younger sister's tight pussy. When she suddenly stopped, Sweetie Belle gasped in dismay. "Do you want it?"

"I… I want it." Sweetie Belle admitted.

"I can't hear you~" Rarity said in a sing-song voice.

Sweetie Belle gulped. "I want it, please!"

"Good girl, now… down on all fours." Rarity ordered her.

Sweetie Belle stared at her big sister, completely overwhelmed with arousement and lust. "Yes," she complied. After Rarity got off of her, Sweetie Belle lifted herself up, turned around and stood on the bed on all fours while Rarity kneeled behind her.

The fashionista saw her little sister's pussy and tushie and licked her lips. "Quite plump in the rear department, aren't we, dear sister?" she commented. "What? Are you embarrassed?"

"I… I am… This is just so…" Sweetie Belle began.

"Are you talking back to your big sister~?" Rarity asked with a cheeky grin. "Bad girl."

Rarity tightly gripped her own sister's butt cheeks.

"Uh… no… mmm… please…" Sweetie Belle weakly begged.

"Remember dear sister, your butt, like my butt, and everyone else's butts, is beautiful." Rarity expressed before peppering her sister's behind with kisses.

"Oh… Yes… Rarity… do it! Kiss… Kiss my ass…!" Sweetie Belle pleaded in arousement.

"And kiss it I shall…" Rarity declared. "Sw- swa- eh, I'll work on a butt related nickname later. For now… let me take your virginity, dear sister."

"I don't mind if it's you, Rarity…" Sweetie Belle said.

"Excellent! Now let your darling big sister work her magic~." Rarity declared as he locked her eyes on her sister's dripping wet pussy, "Now to taste your nectar~."

Rarity then went close to Sweetie Belle's pussy and started licking her younger sister's nectar. Sweetie Belle shivered from the sensation of her big sister licking her pussy and enjoying every second of it.

While her little sister was still riding the wave of pleasure Rarity gave her, the fashionista took the opportunity to reach under her bed. She searched around for a bit before pulling out a strap-on that's seven inches long, two inches thick, and pink. Rarity quickly stepped into it, brought it up to her crotch then tightened the straps on both sides, securing the strap-on. She then spat on her hand and rubbed it all over the dildo.

Sweetie Belle turned and gasped when she saw it.

"You like? I've had it for a while but never had the chance to use it." Rarity confessed. "Now, be a good girl and raise that cute little rear of yours."

Once Sweetie Belle pressed her head on the pillow and raised her butt, Rarity stood on her knees before taking hold of her sister's hips and lining it up with her sister's pussy.

"I'm going to put it in now," she informed her.

"Will… will it hurt?" Sweetie Belle asked meekly.

"Yes, but only for a second. Ready?" Rarity questioned.

Sweetie Belle gulped and nodded. "Ready."

Rarity gently leaned forward, pressed the tip against her sister's pussy and watched it start to sink. Sweetie Belle quickly cried out. Slowly, her screams became even more drawn out and pain filled as Rarity went further and further into her.

"Ooh! I think your hymen broke, Sweetie Belle!" Rarity observed.

"Is… is there a lot of blood…?" Sweetie Belle asked, teary eyed and shaking.

"A little. But just bear with it, because I'm going to move now." Rarity informed her.

"M-Move?" Sweetie Belle repeated nervously.

"Yes, now just call out in case you feel I'm going too fast." Rarity replied as she then started to move her hips as Sweetie Belle moaned a bit in pain at first but after a few seconds it started to feel good.

"Oooh… ahhh… Mmm keep going Rares…" Sweetie Belle moaned, as Rarity picked up the pace and started moving her hips a bit faster and faster.

Sweetie Belle's own glutes smacked against Rarity's crotch repeatedly, making it sound like an audience clapping. In addition, the squelching noises sounded like someone unclogging a drain

"Ahhh… ohhh… Rarity… it feels… like… I have to… pee!" Sweetie Belle shouted, reaching her climax.

"Ooh… mmmm… it means… you're reaching your… ahhh… climax!" Rarity moaned, thrusting more fasting. "And don't worry about spoiling the sheets, now cum for big sister~."

Rarity started thrusting faster, making Sweetie Belle moan as she kept clapping her butt onto Rarity's crotch. The bed creaked and shook with each thrust and the clapping sounds they made became even louder as both girls sweated even more.

Soon enough, after Rarity thrusted one final time, Sweetie Belle reached her climax and screamed at the top of her lungs. Rarity quickly got a jar and got all of Sweetie Belle's juices right into the cup. The freshman promptly collapsed on the bed a sweaty and breathless mess.

"Ahhh… ahhh… phew… Goodness… what a rush…" Rarity panted.

"Ahhh… yeah… that was awesome…" Sweetie Belle sighed, just as out of breath. "Oh… I can't believe it… my first kiss… my first time having sex… was with my own big sister. I… had sex… with my sister."

Rarity nodded. "Yes, I know," she said. "Of course, we mustn't let Mother and Father know of our… incestuous intercourse. They'd be extremely upset with us."

The little sister turned her head. "Yeah… hey what's that stuff in the jar?" She wondered.

"Oh just a memento of your first time with your big sister." Rarity replied, showing Sweetie Belle the jar as she capped it.

"Is that like… my pee?" The younger sister inquired.

"Well, no, from what I've learned, this is your cum. Of course we can just call it… nectar." Rarity purred.

"Woah… all of that… came from me?" Sweetie Belle gasped.

"Indeed it did, little sister." Rarity replied.

"Awesome!" The younger sister remarked as raised herself back up. "Phew, well, you proved it to me, Rarity. Your butt is awesome."

"Oh, believe me, I know." The fashionista smiled proudly as he rubbed her derrière. "It's so amazing in fact, that I've decided to marry it!"

"Woah! Marrying your own butt? Awesome! Hey, wait, can you? And how are you gonna… you know… kiss your butt?" Sweetie Belle inquired, curiously.

"Oh, of course I can and Twilight's taking care of that." Rarity revealed.

"Twilight? Does she…?" Sweetie Belle began.

Rarity nodded "Yes, she does. In fact, she and the other girls all know about my interests, and are all invited to the wedding," she confessed. "In fact, we were just in the middle of my bachelorette party."

"Ooh! Who are the flower girls, err the butt girls?" Sweetie Belle asked.

"Oh well it's … oh my goodness! The party!" Rarity realized. "They're probably all waiting for me!"

Rarity got off the bed and was about to run but Sweetie Belle stopped her by grabbing her big sister's booty.

"Wait! Your clothes!"

"Oh right, hehehe, of course!"

The older sister quickly scrambled to get her clothes on. "Oh! I forgot! I left my skirt and panties near the door!" she realized.

Rarity hurried out the door, all while Sweetie Belle kept eyeing her big sister's bouncing buns the whole time, even starting to drool.

Near the front door, Rarity was just getting her skirt back on. "There!" she said while a fully clothed Sweetie Belle came down the stairs and approached her.

"You think they're doing okay?" Rarity asked her.

"I'm sure they're fine. But uh… can I ask you a question?" Sweetie Belle inquired.

"Of course, dear sister."

"Can… can me and my friends be your flo- err butt girls?"

"Oh, of course, but remember; do not tell them of our… sexual escapade."

Sweetie Belle nodded rapidly. "Right! Of course! But… I can tell them about all the… butt stuff?"

"Well, since they already know that the booty pic going around online is mine, of course, but remember; none of you have to get naked like moi and the rest, perhaps just half naked."

Her little sister nodded. "Ok."

"Also, I was wondering… would you like to be my… butt of honor?" Rarity inquired.

"Is that like a… 'maid of honor'?" SB asked, tilting her head.

"In a… manner of speaking. Yes, it is"

"Awesome! Oh, Rarity, aren't you forgetting something?"

"Hmm? Oh, yes! The girls, thank you!"

Rarity cupped Sweetie Belle's face and kissed her. "See you soon, Booty Belle," she said flirtatiously

"Right back at you… Rear-ity." Sweetie Belle responded with a blush while her sister left the house. The younger sister watched her big sister go with a lovesick sigh.

She then noticed something on the floor that caught her attention; her sister's used panties, lying on the floor. She picked them up and held them close.

Sweetie Belle then buried her face in her sister's panties and deeply breathed in the scent. After which, she turned, looked down at her own butt and rubbed it.

"Mooning… my sister's a mooner." Sweetie Belle mused. "Who woulda thought? Hey, wait, if these are Rarity's, then that means… she's not wearing any…."

Next Chapter: Chapter 30 Estimated time remaining: 49 Minutes