Who's The Bigger Butt Slut?

That night an announcement went up on the club website.

"Howdy y'all! Tomorrow we have a special treat for all club members old and new! While we don't usually offer sex services of a human nature, for one day and one day only that is exactly what we are doing! Two women are kindly offering up their asses to be fucked all day, whether you're a boy with an appreciation for backsides or a girl with a strap-on that you want to put to good use, they are here for you to use! Couple of rules, don't fuck their pussies, they aren't interested. Second of all, they'd prefer not to meet anybody face to face on this particular occasion, so you don't get to know who they are, the only part of their bodies you may get well acquainted with is their slutty assholes and nothing else. Finally, be sure to have fun and let us know which ass you preferred by leaving a dollar! See you then!"

The next day, the game was on. Pinkie and Rarity were in a specially designed room where the front half of their bodies went through a hole in the wall to hide them from view, leaving only their hindquarters on full display. The response to the news of two whores practically serving up their asses on a silver platter to be fucked was phenomenal, there was actually a long line of men and women outside the doors of the bestiality club waiting for the place to open, Applejack and Fluttershy were just raking in the cash. The day went pretty much as all of them had expected, Pinkie and Rarity were in a constant state of quivering pleasure as their orgasms never seemed to end and just rolled into each other while they were repeatedly fucked in the ass over and over and over again, they were fucking loving it.

The room where everyone got the chance to fuck both Pinkie and Rarity also had two buckets, one next to Rarity and one next to Pinkie Pie and as requested, everyone who participated in fucking them left one dollar in the bucket next to the ass they liked more. Most of them observed that one ass (Rarity) was quite loose and took cock very easily, so willing and welcoming that it almost acted like it was meant to be the primary fuck hole instead of the vagina, while the other ass (Pinkie Pie) took slightly more effort to penetrate and fuck. For hours and hours on end, Pinkie Pie and Rarity had their butts continually pounded, some girls had even decided not to bring their own strap-ons for the event, meaning most of them ended up borrowing ones from the club which included the horse and dog cock strap-ons, so they both got to experience a decent variety of shapes and sizes in their bottoms.

The effect that all of this constant anal sex had on Rarity and Pinkie was almost frightening, aside from the never-ending moaning, groaning and whimpering from the satisfaction and pain of their bodies having orgasms forcibly shudder through every nerve ending, they were dehydrated, drooling everywhere with their tongues hanging out of their mouths, eyes crossed, their hair matted and unkempt as sweat soaked their bodies. Never before had they endured so much dizzying amounts of sex, all for the sake of proving which of them was the better butt slut, even Applejack and Fluttershy were starting to wonder if they had made the right choice in encouraging them to follow through on this silly plan, though they could hardly go back now, they were well past the point of no return. Applejack tried to distract herself by putting out some job vacancies out on the club website, after their small bout with Pinkie Pie they decided that they probably should hire a couple of people to be security guards or bouncers at the very least to deal with anybody who decided to disrespect the rules of the club in future, Fluttershy distracted herself by hiding herself under the desk to masturbate, insatiable as always.

As the day went on, the amount of people relieving their sexual frustration on Rarity and Pinkie became less and less, it was lucky that Applejack and Fluttershy had such an advanced diary system for the club, otherwise they never would have been able to keep track of just how many people had arrived to get a double helping of derriere. Despite the amount of lube that had been provided, Rarity and Pinkie couldn't deny the intense searing pain from all the friction their poor unprepared assholes had to go through from the constant onslaught of stiff cocks being thrust inside, they were both hot, in pain, regretting agreeing to do this and probably most of all......... still enjoying every single fucking second, no matter how good or bad they were feeling at the time. Another thing they had noticed is that some of the participants decided to stray from the simple "fuck and leave" approach, deciding to get adventurous and loosen them up with butt plugs, fingering, fisting, some of them even did things just for the sheer pleasure of enjoying some fine pieces of ass like kissing, licking and no small amount of spanking with various implements.

When all was said and done their butts were red, bruised, tingling and looking in just as bad a state as the front of their bodies, not to mention their behinds were packed full of untold amounts of jizz that actually managed to swell their bellies and while they couldn't communicate or comprehend it effectively, they swore that at some point their bodies had become so full of semen that they actually started to cough it up as their bodies attempted to expel the excess fluid that failed to just leak out of their over-fucked asses and onto the floor. This was going to be a huge clean-up job for both the girls and the room.

Finally it was over, all the boys left the club with their nuts fully drained and all the girls left having released their pussy fluids on top of the immense feeling of satisfaction from being the ones to wield a cock for once. Applejack and Fluttershy closed the club and checked in on Pinkie and Rarity, they were both wrecks, barely able to talk or move, tears streaming down both of their faces with tired bloodshot eyes, hot and flushed....... but at least both of the buckets had at least one hundred dollars or so in them.

After Rarity and Pinkie had been nursed back to a normal state, they were both eager to find out who had won. They were stood in the reception of the club as Applejack and Fluttershy stood there to tell them the results, "OK girls..." said Applejack "We've tallied it all up and a total of three-hundred and ninety-two people turned up at the club to fuck you".

Pinkie said "Whoa... that must be a new record huh?"

Rarity went "I should certainly hope so after what we went through! So who won?"

Fluttershy interjected and said "Um... well neither of you actually, both buckets had exactly one-hundred and ninety-six dollars in them, it was split exactly down the middle about which butt people thought was better, seems some people liked Rarity for her loose and easy butt while others preferred Pinkie for her well-trained and slightly more challenging butt."

They couldn't believe it, all of that effort was wasted, it was all for nothing, at least that's what they thought until Rarity suddenly turn towards Pinkie pie, slapped her in the face and went "Go out with me!"

That was confusing, Pinkie Pie went "W...what?"

Rarity went "You heard me! Be my girlfriend! We can both be butt sluts forever, butt sluts together!"

Pinkie smiled slightly and went "Really?"

Rarity nodded and went "Really Really! Butt sluts forever! Butt sluts forever and ever!"