Later after classes were done and school was over, most of the Rainboom’s, along with Trixie, all arrived at Rarity's house at the requested time. When they did, they found Rarity, Twilight and Rainbow Dash waiting for them. With none of them wearing their skirts, though they did have tags covering their pelvis’.

"Okay now that everyone is here…” Rarity began.

“We can finally begin!” Rainbow Dash finished.

“Eyes on the board please.” Twilight told them as she turned to the movable blackboard behind her, Rainbow and Rarity. She flipped it over to reveal a picture of a pair of buttocks, then whipped out a stick and used to point at the drawn butt. “The Gluteus Maximus, the proper name for a female’s butt muscle. Usually used for sitting and such.”

“But as society has shown…” Rarity continued.

“It can be used for way cooler things than just sitting.” Rainbow finished.

“Such as mooning…” Twilight began as she turned and bent over to present her badonkadonk to the girls.

“As well as for bumping or rubbing other buttocks, along with…” Rarity started to say before spanking Twilight’s rear end, making her squeak. “All for the purpose of arousement.”

“Unfortunately, the buttocks have also been the source of ridicule and disgust.” Twilight continued while rubbing her rear.

“Yes, speaking from personal experience as both a derriere hater and a derriere supporter, when one’s rear is exposed people will often mock and degrade it for its size and shape.” Rarity said. “People would also rather cover their eyes however they can then look at it.”

“Yeah! They even have a problem with it if it’s too small or flat!” Rainbow added. “I mean, make up your mind people!”

“It’s also viewed with disgust, because it is the part of the body mostly used for… the bathroom.” Twilight muttered with red cheeks.

“Which we will not talk about anymore or… ever.” Rarity stated firmly and quickly.

“And… your point?” Applejack inquired.

“My ‘point’ darling, is that in this club, we shall erase all doubts about the buttocks being the best body part there is and help others see that as well.” Rarity declared.

“Well, it’s definitely Trixie's favorite body part!” The performer responded.

“Mine too!” Pinkie nodded.

“So, what shall we do with our beautiful booties?” Trixie asked as she stood up, turned and shook her butt making it jiggle like Jell-O. Everyone oohed and awed as they watched the performer's booty

“Well I'm already enjoying the view from here, darling.” Rarity responded watching Trixie's booty jiggle

“Ooh you like what you girls see?” Trixie inquired seductively as she smacked her butt making it jiggle for Rarity and the others as she got into a squatting position showing her booty off even more as she then started to twerk for them.

“Ooh, I certainly do.” Twilight replied, adjusting her glasses with a smile.

“There's nothing I like more than watching a jiggling piece of butt jello!” Pinkie added, as she joined in on twerking with Trixie.

“Good job showing everyone an example, Trixie.” Rainbow commended her. “Namely, the butt being used to create an awesome and sexy dance.”

“It can also be used as an instrument.” Rarity added. “Pinkie, if you wouldn’t mind?”

“You bet!” Pinkie cheered before she reached back and started spanking her own fanny not too hard but very quickly. The flesh on her tush rippled with each smack and sounded like two hands clapping. It even looked like two balls were being dribbled.

Trixie couldn’t help but nod. "Hmm, impressive, but what other uses are there?” she asked.

“Well, you can also paint them…” Rainbow Dash replied before dropping her shorts and showing her Rainbow painted booty mooning everyone. The girls are all caught by surprise but quickly calm down before beginning to ‘ooh’ and ‘ah’.

“Ooh! Such a lovely painting darling!” Rarity complimented.

“Thanks. Did it myself.” Rainbow said, proudly.

“And how did you do it? Wouldn't it be difficult to paint your butt?” Twilight asked.

“It’s actually easier than you think once you know how.” Rainbow revealed. “I’ll tell ya later.”

“Ooh I could learn to draw a smiley face on my booty!” Pinkie said excitedly while shaking her booty at the girls.

“Oh, excellent idea Pinkie, we can get drawings on our booties!” Rarity replied, rubbing her butt.

“Oh my, that's not gonna hurt is it?” Fluttershy asked in concern as her butt cheeks clenched in fear.

“Don't worry Flutters, we're using markers, not going to a tattoo parlor.” Rainbow stated, making Fluttershy sighed in relief and unclenched her butt cheeks.

“Oh, thank goodness, that would have been painful…” Fluttershy expressed.

“Yes I may love doing stuff with derriere but even I have standards darling.” Rarity replied while rubbing her booty.

"Indeed, Trixie hates getting needles on her powerful booty.” The performer responded by rubbing her large butt.

“Well we don't have to get any tattoos if we don't want to,” Rainbow assured everyone.

“Thank goodness.” Applejack sighed, relieved.

“Yeah I don't want my butt getting stabbed by a needle… unless it's by a doctor anyway.” Pinkie replied while rubbing and patting her butt.

“Okay with that aside, can we start my little contest with Trixie?” The fashionista asked as she patting her large butt

“Yes Trixie would like to see who has the better booty too.” Trixie added while shaking her butt.

“Of course. And I have three events planned for this occasion.” The science nerd said.

Later, Rarity and Trixie are side by side bent over with their pants on but no underwear on as this was Twilight's idea

"So what's the first event darling?" Rarity asked

“The first event will be a classic, mooning and you'll be mooning us.” Twilight said

“Yes! Trixie is an expert at mooning people.” The performer bragged.

Rarity scoffed. “Oh please, me and Twilight have mooned dozens of people and their reactions were much more shocking when they saw our behinds.”

“As if! I mooned a group of people at a magic shop that didn't have Trixie's favorite hat so gave them some blue buns on their window.” The magician retorted back at Rarity

“Well, let us see who's the better mooner.” Rarity replied back.

“Okay first up, Rarity.” Twilight said as Rarity came up in front of her friends.

“Okay darlings, you’ve all seen the moon at night..." Rarity started as she bent over and hooked her fingers in the hem of her pants and slowly pulled them down. “.....But now, see the moon... in your own room!”

The fashionista then pulled her pants down quickly, flashing her large bare white booty to her friend. As she bared her bare booty to them the girls exclaimed in both surprise and some disgust.

“Ooh, not bad Rarity.” Twilight commented

“Yeah, shake those buns!” Pinkie enthusiastically added.

“Wow, look at that back porch jiggle.” Applejack marveled.

“Pretty awesome mooning Rares and that's coming from me.” Rainbow remarked..

“It was…. Impressive.” Fluttershy quietly added.

“Hm, not bad, you got the memorized Trixie too.” The magician admitted..

“Thank you darlings, I aim to please and disgust my audience…." Rarity started before spanking her butt showing, making it jiggle like Jell-O for the girls. "And to arouse my audience if they're in the mood…”

She winked flirtatiously, making Fluttershy blush like a tomato while Twilight was remembering her fun with Rarity back in Celestia's office making the fashionista giggle as she went to Trixie's side without putting her pants back on.

“Alrighty, Rarity brilliant performance I'll give it a 10.” The science need said

“Me and Applejack also give your moon a 10.” Rainbow added while Applejack nodded in agreement.

“Um, I give it a….10.5.” Fluttershy whispered but her friends could still hear her though they couldn't see the wet spot on her panties.

“Yeah way to bring those hot buns out!” Pinkie commented, enthusiastically.

"Thank you, darlings. Now Trixie, let's see what you got!” The fashionista challenged the white haired girl.

“Very well Trixie will show how to moon people, after all they don't call me Lulamoon for nothing.” Trixie bragged as she went in front of the girls and bent over showing her pants covered butt with no panties like Rarity to the other girls and Rarity who was not wearing pants and had her titanic derriere pressed to the wall unaware she was leaking pussy juice.

“Now ladies be prepared for why they call me Lulamoon.” The performer started as she shook her butt and teased them a little while slowly pulling her pants down.

"So, which moon do you girls like? The one at night? Or….” Trixie started as she quickly pulled her pants down showing the girls her bare blue butt to the audience

“...My Lulamoon!” she dramatically declared as she made her butt jiggle just like Rarity's booty as the girls were both surprised and a little disgusted.

“Ooh impressive darling, I give it a 10.2.” The fashionista commented.

“Yeah, I give those large blue buns a 11!” Pinkie added enthusiastically.

"Now that was down right amazing Trix." The country girl commented.

“Um that was…. pretty hot" Fluttershy added in a quiet tone.

“Excellent job on delivering the mooning Trixie." The science girl nodded..

“Yeah, that was pretty good, Trixie.” Sunset agreed.

“Thank you girls and Rarity, you were pretty good yourself.” Trixie told Rarity

"Oh why thank you darling, but the competition is not over yet, Twilight what's next?” Rarity inquired.

"Your next event is twerking." The bespectacled girl replied as the other girls were eager to see the two bottom heavy girls shake their butts which made Trixie confused.

“The bottomless and large bottomed Trixie asks what is this twerking you speak of?" The performer asked in a confused tone.

“Oh twerking is when you shake your butt and make it jiggle like Jell-O like this.” Pinkie explained as she then got up and pulled her shorts down mooning her friends as she got into a squat position and started twerking, making her large pink buns jiggle like jelly.

“Oh Trixie understands now.” The performer replied understandingly.

---

Later on, both Rarity and Trixie are side to side. Both were not wearing their skirts or undies, just their tops and gogo boots and some soft pillows in front of them.

“Alright ladies, here are the rules, you two are to twerk until you can't twerk anymore.” Rainbow claimed patting both of their booties.

"Or until you two get tired we provide some pillows" Twilight added and pointed out the pillows on the floor.

"Ok, girls when I start the music you two start twerking.” Applejack explained.

"Got it." The two bottomless girls nodded. Both Rarity and Trixie got ready as they squatted and stuck their butts out.

"You gals ready?" Applejack asked

“Ready.” Both girls nodded.

“Alright…” Applejack started as she went over to the music player "Start!"

She said then turned on the music as both girls started twerking.

As Rarity and Trixie twerked, Twilight and girls saw how their butts were jiggling so much between the fashionista's titanic white moons and the performer's equally large blue moons the girls were aroused by this.

“Oh my, this is just like back in Celestia's office.” The sciency girl said, feeling her pussy getting wet.

“Ah now what you mean, I kinda felt my privates getting warmer, so I decided to relive it." The farm girl responded, getting a gasp out of Fluttershy.

“Oh my, you mean you…..masturbated?” The shy girl asked Applejack to which she nodded a yes.

“Wow and I thought I was the only one that did that.” Pinkie bluntly said as she and the other girls then took off their pants, shorts or skirts as they were now bottomless too.

The other girls get back to Rarity and Trixie's twerking show as they now saw Rarity shaking her butt to the point where it sounded like she was clapping but using her butt instead as Trixie was making her blue buns clap just as loud as Rarity's and the girls saw how it was jiggling just as much as Rarity's booty.

“Wow those two got their butts clapping.” The jockette commented.

“Yeah, they seem pretty even with each other.” Sunset added.

“Hm there's gotta be a way to spice it up a little.” Applejack replied. Pinkie started thinking before she then got an idea

“Oh I got it!” She said excitedly as she then pulled out a bottle of baby oil from her hair and went over to Rarity and Trixie.

There the party girl then went over to the two jiggling butts and poured oil on both of them making them now shiny and slippery as the two girls continued to twerk for their audience.

The confused and oiled Trixie turned to see Pinkie putting oil on her bum. “Why did you put oil on my bum?” The performer asked a bit confused as to why Pinkie put oil on her booty.

“To spice it up a little, now it's a slippery, shiny butt shaking contest!” Pinkie replied while shaking her butt as she went back to the audience. The girls now watched Trixie and Rarity twerking there now oily bums as they saw how shiny they were.

“Wow-wee now those are some shiny hiney's.” Applejack remarked.

“Yeah I may have to try that out someday.” Sunset added thinking about how her butt would look with oil on it.

After about half an hour, both Rarity and Trixie both fell to their knees onto the pillows with their butts pointing in the air for the girls to see.

“So, who won?” Rarity inquired, panting.

"Yes, who has won this twerking round?” Trixie added who was also panting.

“Well since you both fell to your pillows I'd say it's a tie.” Twilight answered to the two tired twerkers who got up after a couple of seconds of resting.

“Darn it, well what's the next contest? We've done mooning and twerking. What else could there be?" Rarity inquired.

“Oh what about pressing your butts on windows?” Rainbow suggested.

“Ooh Trixie loves pressing her booty on windows.” Trixie replied enthusiastically while clenching her butt cheeks in excitement

“Me too, there's nothing more satisfying than pressing your rear on a window.” Rarity added while also clenching her butt cheeks.

“So all in favor of seeing Rarity and Trixie pressing their butts on glass, raise your butts.” Twilight asked The rest of the girls quickly raised their butts and pointed at her.

“Okay butt glass it is then.” The science girl commented after tailing up the votes.

Next Chapter: Chapter 24 Estimated time remaining: 1 Hour, 60 Minutes