A Mare's Best Friend

Rarity was on her way to meet up with her good friend Fluttershy, over at her cottage. It's been ages since they've spent quality time with each other. They've either been saving Equestria for the 175th time or too busy working with their day jobs. Not to mention the school work either.

Upon Rarity's arrival at Fluttershy's place, she took in the fresh aroma around her surroundings. To Rarity, there's just something so special and romantic of the idea of living distantly away from civilization and be one with nature as close as possible. Maybe that's a little dramatic, Fluttershy doesn't live that far away but the point still stands. It's just the outside itself that Rarity likes imagining at times. A little ironic considering Rarity doesn't like being around the mud, mildly warm climates, and pesky insects all around. Still though, that doesn't mean somepony such as Rarity herself can't appreciate the beauty of nature.

"Oh my. I could never live this far away from Ponyville but perhaps having a get-way cottage of my own wouldn't be a bad idea after all. This setting is just to die for!" Rarity thought to herself.

Finally, up to Fluttershy's front door, Rarity knocked. Nothing. She knocked again and waited a little bit longer but still no response from her still. Maybe she's not home.

"Oh no, I was really looking forward to bond with dear Fluttershy." Rarity pulls out a pen and paper from her purse. "What a shame, but maybe leaving her a note could at least let her know I'll be available for the remainder of the day."

Before Rarity could place a single drop of ink onto the paper, she noticed a faint sound coming from inside. She can't tell if it was there before but she could hear it now.

"Fluttershy...?" Rarity murmured. "Is that you in there?"

Fluttershy's job is taking care of animals so it's most likely just her animal buddies making that sound. But curiosity got the best of Rarity, and so she used that curiosity to boost her confidence in allowing her self in. It's not like it'll be rude or anything, they are indeed close friends but Rarity is the type of pony to be welcomed in properly rather than coming in uninvitedly.

Nevertheless, she picked up the secret key under a flower pot to open the door. And with that, she's inside. Some little critters that are in the main room paid no attention to Rares, they just eat the available food they have with them.

"Darling? Are you in here?" Rarity called out. Nothing, but that mysterious noise is now a lot more audible.

The sound is now clearer than before, and if Rarity didn't know any better, she could swear that she's hearing heavy panting. The kind when you're fucking and totally into it.

"Could she?" Rarity said softly to herself. "No, she could. Unless?"

Rarity softly walks upstairs to where Fluttershy's bedroom is, the sound is much louder than before.

"Yep. That's definitely it." Rarity says to herself while smirking at the idea. "I really have to see this."

Rarity is now by the slightly opened bedroom door of Fluttershy. And while she did predict accordingly of what that ruckus could have been, the site was something else. And it was hot.

There she was, Fluttershy on her knees and hands out, laying forward as one of her pet dogs is mounting her. It's a german shepherd, pounding his "owner" furiously. Humping to the point his waist is blurry, he's like a living vibrator set at max mode, and Fluttershy is loving every, single, second of it. She can feel the texture of the cock just nicely as it slides in and out, causing her to moan more in pleasure. The unique shape of the cock is just as epic, the pointy tip hitting her the entrance of her cervix, traveling the depths of her sweet pussy so energetically with only the huge knot on the base stopping the tip from fully entering her womb, for now. The steamy musk atmosphere they're creating together is proof of how committed they are at this, each plow feeling stronger than the last and with no sign of stopping now.

Her face just looks silly. Tongue out, dilated eyes looking upwards, blushing so hard her face matches the shade of a ruby. And not to mention the moaning she's doing.

What a sight to behold, Rarity couldn't help it. She undid the fly of her tight blue jeans to finger herself. She tries her best to hold her moans by biting her lower lip as she plays with herself. Watching her best friend getting fucked like that by some class animal was sending so many feel-good signals to her. It hasn't even been a minute and Rarity is spilling a lot of her hot sex juice from her lonely pussy.

Rarity didn't have a clue that fucking a dog would be so hot to her. A dog is a companion at most and nothing more, they're still viewed as a lower class compared to a civilized pony. And here's Fluttershy, getting fucked right in the pussy with his big meaty shiny red cock. Fucking her like his personal bitch that she is. He still isn't balls deep yet, hell, his knot has yet to penetrate Fluttershy's cunt, could he possibly fit it all in? From the looks of it from Rarity's perspective, that doggy cock would have to be at least 12 inches, no less.

Judging by the sticky mess on the floor, they've been at this for a while. Not to mention the hot steamy musk smell surfacing around the bedroom.

"Yes Rex! Fuck me! Give me all your pups, give mommy your cum!" Fluttershy howled to her canine companion.

Rarity has never heard Fluttershy say anything remotely that close of crudeness. It seems like they're reaching their climax. And it seems like Rarity is reaching her limit as well. Seeing Fluttershy's stomach bulge fluctuating from Rex's cock was mesmerizing to say the least.

While all this is happening, Rarity is still masturbating to the scene. She lets some light moans escape from her lips, risking being caught but she couldn't think straightly. The door was only open for only a quarter of the way but the immense sex fumes were getting to her head. She's not thinking straight and just wants cock now like the thirsty slut she wants to be. She started with only two fingers in but now is trying to fit her whole left hand in her vagina, pretending it's Rex thrusting inside him. Her hand was nothing but slimy from her love juices tainting it, and if Fluttershy wasn't so busy with her partner, she would hear the sounds coming from her. Of all the times Rarity brings her emergency dildo, she just had to forget it.

As for Fluttershy's situation, Rex the dog was getting close. He couldn't help but firmly sink his teeth onto his bitch's neck. This caused Fluttershy to yelp in pleasurable pain, the excitement is too much. With one mighty thrust, Rex shoved in his whole cock into Fluttershy, having her pussy to take in the knot. As the tremendous knot entered, it only intensified it more, causing it to swell up and grow ridiculously monstrous, ending stuck inside Fluttershy. The intense and hot passion was too much, even for her. Tears were running from her eyes of how much it burned and burned good. The knot worked as intended.

A huge rush of cum erupted from the canine's cock into his master's pussy. Fluttershy couldn't help but moan at the feeling, the warm and sticky sensation was heaven. It took a minute of Rex pumping out his seed to finally swell up Fluttershy's stomach to the maximum she can carry. The cum eventually started leaking through her pussy, with the knot still intact. A small puddle formed around them, mostly being just leftover water cum from his real thick juices already inside his master's womb. She may be the master, but she's definitely his bitch.

"I love you, Rex." Fluttershy muttered to her doggy friend. Rex barked softly as acknowledgment.

Everything was all quiet, until...

"Ahhhh yes!!!" Rarity screamed in joy from her orgasm.

Fluttershy and Rex were startled by the sudden burst of noise. It was only for a second but Fluttershy recognized that familiar tone.

"R-rarity?" Fluttershy meekly called out. The cry was swift but distinctive.