It took a while, but eventually, Twilight was able to perfect her mini portal generator. Once she successfully tested it, Sci-Twi quickly let Rarity know, who in turn told all the others. As soon as she did, they knew that the day of the 'Butt Wedding' had come.

The girls decided to hold the wedding at Rarity's place since her folks will be out of town for the weekend. Sci-Twi brought the mini portal generator with her, with the help of Applejack, and the other girls making sure it was okay.

After that, the girls were outside Rarity's house, decorating, setting up chairs and the wedding arbor and generally getting ready for the wedding while Sci-Twi was hooking up the generator.

"Okay everything is all set." Sci-Twi

"And you're sure this isn't gonna… backfire?" Adagio asked, a little concerned about the fashionista.

"Don't worry I checked everything, it's 100 percent safe." Sci-Twi reassured her siren friend.

"Uh-huh…" Adagio replied, a bit skeptical.

"Hey, wait a minute there's one thing I don't get, who's gonna be the priest?" Sonata asks.

Everyone looked at each other realizing that they didn't choose a priest.

"Ohh shoot, guess that's the one part we forgot." Applejack remarked, breaking the silence.

"So who is gonna be the priest?" Rainbow asked as she casually took her pants and panties off mooning Sunset.

"Hmm, how about Twilight? She was the one who made the portal generator." Sunset suggested while taking her pants off and her panties mooning Pinkie Pie.

"That's not a bad idea, she was the one who gave me a good spanking~." Rarity purred as she pulled her skirt and panties down showing the girls her big booty.

"Hehhe, y-yeah that's true." Sci-Twi replied bashfully as the Dazzlings were a bit surprised.

"But I'm the one who got her into this in the first place!" Rainbow Dash spoke up.

"I've known her longer!" Applejack interjected.

"No I have!" Rainbow argued.

"You barely hang out!"

"So what!?"

"Spotlight hog!"

"Stubborn mule!"

"No offense to the mule." Pinkie Pie whispered to apparently no one in particular.

"Girls! Girls! Enough! This is my day, remember?! I'm the one who should be freaking out around here!" Rarity exclaimed.

"Sorry." They both said.

"Anyways, it truly doesn't matter to me who acts as the priest. Anyone can be ordained these days after all." Rarity pointed out.

"Still, someone has to do it." Aria said.

"How about we…" Fluttershy began.

"Yes?" Sonata said expectantly.

"Um…" The shy girl muttered nervously.

"Well, speak up!" Aria barked, frightening Fluttershy.

"Hey, knock it off." Sunset said, sternly. "Don't scare her like that. Fluttershy, don't force it, just take your time."

Fluttershy breathed in and out before speaking. "Maybe we… we could… draw straws?"

The others blinked in surprise and turned to each other.

"Yeah, okay." Aria agreed.

"That could work." Sonata added.

Pinkie pulled out a bag of straws out of her hair and mixed them up and held them out.

"Now pick your straws girls, shortest gets to be the priest!" she declared.

Each of the girls, besides Pinkie and Rarity, took hold of one of the straws and were all ready to yank them out.

"Alright, then. One… two… draw!" Rarity said before they all pulled out their straw and left Pinkie with one.

The girls looked at their straws and saw they all had different lengths and saw that the one person who had the shortest straw was none other than Pinkie herself.

"Yay! It's me! I won!" Pinkie Pie cheered. She then turned around and pulled her skirt, tights and panties down and mooned everyone as she bent over. "Everybody better kiss my tushie!"

She giggled as she shook her butt.

"Well, fair is fair." Adagio replied as she went over to Pinkie and kneeled down in front of the party girl's butt and saw how plump and soft the party girl's butt is. "Well someone's been eating plenty of sweets~"

Adagio purred as she sank her hands into Pinkie's feeling how doughy they were. Eventually, Adagio's lips made contact as she planted a nice wet one on Pinkie's butt. She made a loud kissing noise as she pressed her lips against it and intentionally tasted it in the process and it was better than she imagined it would be.

"Oooh… ahhh… Dagi that's… mmm." Pinkie moaned, feeling the dazzling pepper her booty with kisses.

"Um, excuse me? Adagio? Pardon the interruption, but we do have a wedding to prepare for, you can kiss Pinkie's ass later." Rarity said as Adagio reluctantly stopped.

"Aww, it was just about to get to the good part." Pinkie pouted as she tossed aside her skirt, tights and panties.

Adagio stood up and said, "Don't worry we can continue after the wedding."

"Yay!" The party girl exclaimed.

---

Sometime later, as Sci-Twi began to set up the portal generator, the CMC arrived.

"I still can't believe we're doing this." Apple Bloom admitted, bubbling with excitement.

"I know, right?!" Scootaloo added, equally excited. "I mean, who would have thought we'd be attending Rarity's wedding. And it's to her big butt!"

"And who woulda thought she, her friends and all our sisters were a bunch of pervs." Apple Bloom commented. "I didn't really believe them when they told us. And don't even get me started on them asking us to be flower girl's for Rarity's 'butt wedding'! This is weirder then a snow storm durin' the summer."

"Guys, come on, let's not obsess over how weird this is, ok? Remember, this is Rarity's big day." Sweetie Belle reminded them.

"Not as big as her butt!" Scootaloo quipped as she and Apple Bloom laughed.

"Girls, come on! This is Rarity's wedding day." Sweetie Belle reminded them again.

"Alright, alright, sorry. So, what are we wearing for the wedding?" Apple Bloom asked, curiously.

"Yeah, what do we wear for a pervy wedding?" Scootaloo added.

Apple Bloom thought about it and replied, "I actually don't know, maybe it's some kind of underwear or…" She trailed off when she saw Sci-Twi was buck naked.

"Woah Twilight, where are your clothes?!" Scootaloo exclaimed as Sci-Twi turned to the girls.

"Oh, over there." Sci-Twi replied casually as the CMC saw the other girls were nude too. Their jaws dropped when they saw them all strutting around and talking to each other in their birthday suits without a care in the world. All of them sporting similar but different symbols on both of their butt cheeks.

"Woah, am I the only one seeing they're all naked?" Apple Bloom asked, as the two other girls nodded. "Oh good, I thought it was just me."

"Wow, Rainbow Dash looks so awesome in the buff!" Scootaloo commented while eying the naked jockette and at her blue ass.

"So does Applejack." Apple Bloom smiled as she stared at her elder sister's firm and naked butt, and saw she was only wearing her hat.

"And Rarity looks amazing as ever." Sweetie Belle added, blushing as she practically drooled at Rarity's naked booty before wiping her mouth before anyone could see

"Come on, girls, it's a naked wedding party! Join in and shake your fanny's!" Pinkie exclaimed as she was shaking her booty like jello.

"Pinkie, come on, they're still new to this." Sunset chastised while being just as naked. She smiled at the girls. "Don't worry, no one's gonna pressure you into doing this. You three can be the exception."

"Well…" Apple Bloom started.

"Thanks, but…" Scootaloo continued.

"I'm Rarity's Butt of Honor, so I have to be naked!" Sweetie Belle proclaimed before she also started stripping. "I'm joining in too!"

The two girls become slack jawed again as they watched their friend stripping down to her birthday suit before quickly snapping out of it.

"Well, if Sweetie Belle's doing it she shouldn't be left out!" Apple Bloom proclaimed as she started stripping too.

"Yeah, and the CMC always sticks together!" Scootaloo added she started joining in and stripped too.

Pretty soon the three girls were now naked as the others saw this.

"Ooh, not bad ladies." Adagio commented.

"Yeah! A few years later and you'll be like us." Pinkie added and she turned around mooning the CMC.

"Wow, I hope my butt gets as big as Rainbow Dash's." Scootaloo commented as she looked at her own tush.

"Yeah, I bet mine would be really strong like Applejack." Apple Bloom added, jiggling her butt a bit.

"And mine would definitely be like Rarity's booty." Sweetie Belle commented looking at her butt too.

---

After some time, while the girls took their seats, Pinkie got behind the podium and Sweetie Belle stood near the wedding arbor. Apple Bloom and Scootaloo skipped down the aisle throwing flowers while Rarity followed close behind as wedding music played via MP3 player.

As Rarity stopped under the arbor, Sci-Twi turned on the portal generator that was positioned right behind Rarity. There, one portal opened behind Rarity and another one in front of her.

"Okay Rarity, move back a bit." The techie instructed.

Rarity did so and stuck out her tush as she bent over a little. Two white globes soon emerged from the portal in front of her face. Rarity 'oohed' and licked her lips as she stared lovingly at her own ass

"Wow, not bad Twilight." Rainbow commented.

"You are definitely a genius." Sunset smiled at Twilight. She gently held Twilight's hand, making the two of them blush as they smiled at each other. Rainbow and Applejack held hands also while Fluttershy started crying tears of joy.

Pinkie Pie cleared her throat. "Ladies! We are gathered here today to bear witness to one of the most wonderful things in life." she said all dramatically before then getting all cuddly as she said the word, "Love."

Gathering herself together again Pinkie went on. "Today we will see the beautiful marriage between Rarity… and her own butt!"

The fashionista smiled proudly and giggled as she watched her butt vibrate in front of her.

"Some may consider this a joke, and not a good one either, but this is a very serious love! But as Fluttershy once again; if two animals from different species can get together, why not a girl and her butt?" Pinkie reasoned.

Fluttershy blushed and nodded as she recalled her own words.

"So without further ado…Do you, Rarity, take this butt of yours to be your one true love?" Pinkie asked the bottom heavy fashionista.

Without any hesitation, Rarity said "I do!"

"And do you, Rarity's butt, take Rarity to be your one true love?" Pinkie asked curiously as she leaned over closer towards Rarity's slightly bloated behind, Rarity's badonkadonk vibrated in response. "I'll take that as a yes! And now… the rings! Sweetie Belle?"

Sweetie Belle handed Rarity a diamond ring that belonged to their grandmother and that she was holding in her clenched hand. Rarity shook her head and gestured to her hand though. Sweetie Belle understood and took Rarity's hand before sliding the ring on her finger. Rarity smiled a teary eyed smile as she stared at the ring.

Overwhelmed with emotion, Rarity cupped Sweetie Belle's face and kissed her, momentarily surprising her before she gave into the kiss.

The girls all blushed and 'oohed' at the sight. Feeling bold, not to mention horny thanks to the shocking display of incest, Apple Bloom got Applejack's attention before pulling in for a kiss. A shocked Applejack gently held Apple Bloom's face as she gave in and also used her hat to cover the two of them upside . Scootaloo followed her friend's lead and suddenly pulled Rainbow Dash down onto her lap and forced her lips onto hers. Rainbow grabbed and toyed around with Scootaloo's tiny boobies as she made out with her.

After they were all done. Pinkie then handed Rarity a small metal hoop.

Rainbow's eyes widened. "Oh! So that's how she's gonna…!" she started to say before everyone shushed her.

Rarity reached around with the hoop and stuck it inside her butthole, leaving it sitting on the edge.

"And so, with the power vested in me, by the website that just ordained me last night, I now pronounce you, butt and wife! Rarity, you may now kiss your own butt!"

"Gladly!" Rarity beamed as she moved forward and pressed her lips against the center of her own ass.

"Aw!" Everyone commented.

"Hey, did she wash her behind before the wedding?" Apple Bloom whispered to her older sister.

"Yeah, of course she did, she didn't want to dirty up her mouth." Applejack whispered back. "Besides, this is Rarity we're talking about."

"True, but didn't you moon the cows once back in the barn?" Apple Bloom pointed out.

"Touché." Applejack admitted.

"So, Adagio, about that offer I mentioned about going back to CHS?" Sunset reminded the siren about the offer she mentioned.

"Well after some thinking and seeing how the wedding went… sure." Adagio replied as the other sirens nodded their heads in agreement.

"Awesome! The return of the Dazzlings!" Pinkie exclaimed before she said, "In a good way of course."

"Yay! Taco Tuesday!" Sonata also exclaimed thinking about the tacos.

"It's-" Aria started before Adagio stopped her.

"Let's just let her have this one," she said.

Aria sighed and replied, "Okay."

After Rarity was done kissing her own behind, she straightened up and looked down at her ass as she rubbed it with a smile. Twilight closed the portal and the girls all stood up, cheering loudly. They even go so far as to turn around, raise their rumps and repeatedly smack them with both hands. The flesh of their cheeks rippled and jiggled as they spanked themselves lightly. It was like they were still clapping with their hands.

"Wowee! This is a lot more fun than I thought I'd be!" Apple Bloom commented.

"Totally! Who knew letting it all hang out and shaking our hindquarters would be so awesome?!" Scootaloo added enthusiastically.

"We did!" Everyone else exclaimed and giggled.

Rarity bowed to everyone. "Thank you, everyone. I am most thankful," she expressed. She quickly turned around and stuck her glutes out. "And my derriere also thanks you."

The athletic girl walked up to Rarity's ass and leaned down to look at it directly. "Well, you're welcome… Rarity's butt" Rainbow smiled before kissing Rarity's booty.

Soon the girls went up and each gave Rarity's ass a kiss, including the Dazzlings, before beginning to enjoy the rest of the festivities as well as any and all butt related things.

Next Chapter: Chapter 32 Estimated time remaining: 33 Minutes