Sleepless Nights in Zephyr Heights

by Monsieur Howl-le-Howdy

Rating: mature
Tags: Zipp Storm, Sex, Alternate Universe, Pipp Petals, Romance, Porn, Fetish, My Little Pony: A New Generation, Profanity
Length: 3917

Zipp discovers her younger sister in a compromising situation with a stray dog.

Pipp has been sneaking out of the royal palace for late-night lewd activities.
Unbeknownst to her though, her comings and goings have not gone unnoticed.
When Pipp is in a most compromising predicament her sister Zipp decides to crash the fun.
Much to Pipp's surprise Zipp will not sell her out, on one condition, if she can join in.
Pipp will also be shocked to learn about paternity marks.

Warning contains interspecies breeding and interspecies pregnancy and a very mild moment with watersports. Mentions of birth.

Cover Image is public domain.

Published 2023-03-08 23:30:00 UTC
Last updated 2023-03-08 23:30:00 UTC

One and Only

It was a cloudy moonless night over Zephyr Heights. The city's clocktower chimed midnight, its bells ringing twelve times. The streets were empty, as the citizens slept soundly In their homes with only the occasional night owl or guard strolling the pavement.

Down one of Zephyrs' many alleys, past a padlocked steel gate, in an abandoned unlit yard by a red brick wall was a shelter. The base, a worn-out double mattress with old blankets and pillows scattered along its top. Its walls were old wooden pallets, the gaps filled in with newspapers and magazines, to help keep the wind out, an article in one paper reported on the rising stray dog population.
A large green plastic tarp covered the top and sides, turning the shelter into a cosy makeshift cave. A single battery-powered torch hung from a hoop nailed into the brickwork, its dim white light lighting up the interior and its occupants.

A short pink coat pony stood on the mattress, their purple mane and tail were bedraggled while her forelegs were braced and their hindlegs spread wide apart. The pony let out long lustful moans in between gasps from her mouth and their dreary half-lidded emerald green eyes struggled to stay open. Their wings were painfully stretched out as far as they could and their golden hoofs were dirty from the yards muck and grim.
The other occupant lay atop the pony, its short dense white fur and black-specked body pressed against the pony's back. Its white forelegs embraced the pony's hips tightly leaving scratch marks on the pony's hide with its blunt claws. It laid its head between the pony's wings panting for breath.
Its hips pressed against the pony's plump butt, its groin kissing the pony's nether regions, its fat meaty knot inside the pony's tight pussy tying them together, its meaty angry dick filling the pony's love tunnel, its tip piercing the pony's cervix, Its tennis ball sized plums releasing its stored puppy batter into the pony's willing womb.
The dog finally released its hold on the purple pony's hip with its forelegs and began the process of turning around, lifting a leg up and over the purple rump.

Princess Pipp Petals, youngest daughter to Queen Haven, up and coming Popstar and social media influencer, let out her loudest moan of the night as the stray finished turning around, both now facing opposite directions.
A smile quickly infected her lips, her breath slowing down as her heart started to beat more calmly as the dog's liquid love cooled down her heat. Pipp could feel the dog's tail lazily wag, bumping into her tail's dock.

She sighed happily as the itch in her groin was finally scratched, her estrus satisfied. She glanced over her body, seeing the scratched marks on her hips and the dog's drying drool on her once pristine coat. She could feel that despite the knots' attempts to plug her pussy, some fluid still leaked out and began to slowly dribble down her legs.

''Wow boy,'' Pipp said in happy astonishment. '' You really did a number on me tonight. You haven't fucked me like that since the first time you bred me. I'll have to have an extra long bath in the morning to get the soreness out of me.''

Pipp remembered fondly the first time she had met the stray. Three days after Pipp's eighteenth birthday she had entered her first heat, a feeling of hotness and an irritable itch between her legs had made her feel moody and miserable while her pussy was embarrassingly winking uncontrollably whenever any stallion passed by her.
That night it had rained and unable to sleep Pipp had eloped onto the quiet streets. The rain had felt good, helping to cool off her feeling of hotness but she still was able to relieve that damned itch. Unable to tolerate it anymore she ducked into an alleyway and went behind a dumpster to rub herself off.

She had not realised that she was not alone, she had not seen the stray that had followed her into the alleyway, She had not reacted when the dog began sniffing her or when its broad tongue intruded upon her lips as she played with her pert teats in her lust filled daze.
Only when she felt a weight land on her back and a pair of legs grip her sides and something blunt probe her backside did she finally react and only then, too stand up straight and give whoever it was trying fuck her an easier time. She held in the scream when the dog found his mark and took her virginity in one powerful thrust.

Only when the dog had knotted and tied her did she realise who and what had taken her. After fifteen minutes the dog had un-knotted her and began licking its balls while leaving Pipp leaking from her no longer virgin pussy, leaving her with a sense of revulsion and shame in her. That hadn't stopped her two minutes later from spreading her hindlegs, hiking up her tail and beckoning the dog over for round two.

Closing her eyes and focusing on the meat spear unloading into her, Pipp didn't hear the quiet sound of a pony's hoofsteps just outside her little shagpile.
Her body tensed up and her eyes rocketed open as Pipp heard a voice speak.
'' Hey sis, so this is where you've been sneaking off to every night these last two months. Nice place you got here, You build it yourself?''

Slowly turning her head Pipp saw that just standing outside the entrance of the shelter was her sister, Zephyrina Storm, with a big smug smile plastered on her face. The flashlight's dim glow in the shelter gave Zipp's alabaster white coat and pink and aqua blue toothpaste mane and tail a much darker shade, giving Zipp a menacing vibe.

''Zipp?'' Pipp asked, her mind racing. '' I can explain.''
Tilting her head to the side and raising an eyebrow Zipp leaned against a pallet and said ''Really? Well, this ought to be interesting.''

''Yes, you see, erm, me and Spotty here was just, erm, well we were, erm, just'' Pipp did not get to finish her excuse as Spotty decided now was a good time to take a break. Pipp grunted as Spotty tugged his knot out of her and left the shelter, passing Zipp without a second glance and trotting over to a pair of dog bowls. One was filled with clean spring water and the other was filled with premium royal kibble, both pinched from the palaces' royal stores.
Pipp collapsed onto the mattress, making an oof sound as she faceplanted. She laid down on her side and looked up at her older sister with defeat on her face. ''How long have you been watching?'' she asked.

Zipp dropped her smug smile replacing it with a sympathetic one. ''If you mean just tonight, then all of it, but I've known about this since a week ago when I saw you sneak out and followed you here. Did you really build this?'' Zipp waved a hoof about the shelter.

Groaning in embarrassment at not just being found out but that Zipp had known for a while, Pipp nodded. ''I wanted to give Spotty a nicer place to sleep. He just had this decrepit rusting barrel. I found this place by accident and thought it would be someplace safe for him.'' She paused before continuing. ''I may have 'borrowed' some things from the palace.''

''Aww, Pipp that's so sweet.'' Zipp stepped into the shelter and onto the mattress leaning down to nuzzle Pipp's cheek.
'' There's no need to be embarrassed, a lot of mares stick their tails up to invite animals for a good time.''

Looking up and into Zipp's crystal blue eyes in shock, Pipp's mouth agape, her mind trying to form a sentence before finding her senses. ''What? how come I was never told about this''

''Because it's not exactly polite conversation now is it?'' Zipp's face went to being smug. ''Plus our mom and the city's elite, being the prudes that they are, disapprove of it.''

''Really, so I'm not going to get into trouble?

''No silly, so long as you don't do it in public, and foals don't learn about it, most ponies will turn a blind eye. I remember when one of Mom's councillors made a big fuss about it and they got black-balled from every business. Again it's meant to stay in the shadows, that only adults know about. It's basically an open secret.''

''But if you want to keep your private times secret, I promise not to tell a soul.'' Zipp leaned in till their muzzles were scarcely touching and looked straight into Pipp's eyes. ''On one condition.''

Nose to nose with her older sister Pipp couldn't help but feel a rush of arousal heat up her body, unable to keep the excitement from her voice. ''Sure, What's your condition?''

The smile on Zipp's grew bigger. ''You let me in on the fun. Ever since Mom found me and a stray cat in my room playing Find the Mouse, she's been keeping tabs on me wherever I go. She even ordered Zoom to tail me everywhere. I can only lose her after dark. I just want a nice quiet place to have fun.''

''That sounds good.'' Pipp happily replied as Zipp let her up.

''So mind if I have a go with the pooch?'' Zipp asked tilting her head towards Spotty. Pipp simply shook her head. With a smile that hid her growing arousal, Zipp exited the shelter. ''Hey boy,'' She called out.

Spotty looked up from his food bowl where he had been happily munching. He saw the new white bitch pony, who seemed friendly with his pink bitch pony, call out to him. Her scent had been rather similar to his pink bitch pony's and the two seemed far too friendly to be mere friends. Though their coat and hair colours seemed vastly different from one another, the two bitch pony's looked to be related with maybe five to six years between them.
The white bitch turned her butt towards him, hitting her tail up and to the side, presenting herself and openly inviting him to breed her. The bitch pony's vulva winked at him like a lure.

That caught his curiosity and he began to cautiously approach her, he could never be too careful after all. He considered himself to be something of an expert in breeding bitch ponies, having probably sired a quarter of the city's dogs over the past decade. But unfortunately, this always came at the risk of being kicked by a pony bitch whenever he had mistakenly believed they were receptive to his advances. He did not want to be on the receiving end of a pony's kick.

He heard the white bitch pony say something. ''Hey Pipp, wanna see how an expert does this?''
As he reached out to take a sniff, the white bitch let out a stream of urine, that immediately got his attention. His sensitive nose took in her scent, drinking deep into her hormones and transmitting the chemicals to his vomeronasal organ where they were decoded.

Her decoded hormones gave up their information, her sex, her age, where she had been and what foods and drinks she had consumed. And most importantly of all, she was free from disease and very healthy, she was in heat, she was more than willing to mate and she was oh so very fertile. His penis began to grow out from his sheath, quickly hardening.

Spotty decided that yes, he would breed this white pony bitch and she will produce strong healthy pups along with his pink bitch. He dove his tongue in lapping at her sex, preparing her to accept his sperm. He followed her into his fake den, she seemed to want to be bred on the soft bed like his pink bitch.
In his experience, most bitch ponies preferred to be bred somewhere hidden like down an alleyway or behind a bush or in their enclosed territory. He did not really care where a bitch wanted to be bred, so long as they were willing to carry his progeny.

''Hey, Pipp, you want an up-close view?'' Zipp lifted a foreleg up invitingly.

Pipp did not say a word as she dove underneath her sister, turning on her back with her head between Zipp's hindlegs, where she would get a worm's eye view of the action. She first noticed Zipp's toned muscley thighs, then smirked as she saw Zipp's udders and teats and she noted with some satisfaction that they were not as big nor as round as hers.

Pipp's attention was drawn away as she heard the sloppy love fest that Spotty was doing to Zipps'ss marehood. He started with long drawn-out licks at the thighs, dragging his tongue upwards towards Zipp's pussy lips. He then began the first course quickly brushing his tongue against her lips before diving it between them, getting to the colourful and tasty insides.

''Umf, he knows how to work his tongue.'' Zipp moaned spreading her legs wide apart to give Spotty easy access to her. ''So, Pipp, whatcha gonna name your puppies?'' Zipp inquired.

Too distracted by the show going on in front of her Pipp did not answer at first till Zipp repeated her question.
''What?'' Pipp confusedly asked. ''What do you mean puppies?''

''The ones in your knocked up belly, you do realise you're pregnant right?''

''Hey, if you're calling me fat, that's rude, I've just been eating a little bit more these past few weeks, that's all.''

''Pipp, you look two months pregnant and I've seen you dipping pickles into your hot coco and spreading peanut butter on your brie toast. Plus the ice cream and veggie chicken drumsticks you keep ordering from the kitchens. That's the cravings of a pregnant mare. Plus I can see the paternity mark from where I'm standing.''

Quickly using a wing to move her admittedly rather round belly, she spied just above her inner thigh a spotted paw print on her pink coat.
''Oh, shit,'' Pipp whispered to herself in shock.

'Didn't you do sex-ed Pipp, or were you too busy eyeing up the teacher?''

''Ok, first of all'' Pipp replied tersley. ''I was too busy making balloon animals out of the condoms, and Mr Flathoof was ugly. I never had a crush on him.''

''Secondly, I didn't know I could get pregnant by a dog.''

''And thirdly, Oh fuck moms going to go ballistic when she finds out.'' Pipp could not keep the panic from rising in her voice.

''Pipp, relax, take deep breaths,'' Zipp said reassuredly, or as reassuredly as she could, while an expert tongue mapped out her genital topography.

''Firstly, yeah condom balloon animals are fun to make and I tease you about Mr Flathoof because you said you liked his tie once.''

''Secondly, if you were paying attention, he would have told you something along the lines of, Mother Nature, is horny slut and broody as all Tartarus, She just wants every mare to have more babies. So yes, a dog and many other animals can get a pony pregnant. Something to do with the magic of old where so long as the father is of a viviparous species they can impregnate a pony. Thankfully the babies are always the father's species so no weird hybrids.''

''Thirdly, don't worry about mom, so long as she doesn't notice the paternity mark she'll just think that you're putting weight on. If you haven't noticed about our dear mother she can be rather dense and oblivious sometimes. Ok, most of the time. You'll just have to put up with her making comments on your weight.''

''But what if other ponies find out though?'' Pipp could not help but worry.

''Pipp, the kitchen and, oh wait a sec, I think Spotty's had enough of the snacks.'' Zipp interrupted herself as Spooty mounted her, his forelegs gripping Zipp's hips in a tight embrace.

Pipp returned her attention to the action. She had never actually gotten a good look at Spooty's breeding tool. Her eyes grew wide at its length and girth. She thought to herself, how in Tartarus is he gonna fit that in Zipp, fuck how did he get that monster in me for that matter.
She looked at his balls, they looked like ripped kiwis' swaying with each of Spooty's thrusts. The imminent action spurred on Pipp's own growing arousal, her mind turning to dirty thoughts of Spotty's jizz shooting into her older sister. Spotty soon showed Pipp how he fitted himself inside a willing hole.
With patient and determined jabs, he prodded around Zipp's marehood till the tip of his dick caught her entrance and with a forceful push spread her lips apart and slipped in halfway. Zipp let out a sequel as she felt Spotty finally enter her.
Sprotty started slow, drawing his hips back till only his tip was inside before driving back in till filled Zipp nearly fully and repeated the procedure slowly spreading up each thrust.

''Fuck yes, oh I'm so glad you picked a larger dog, Pipp. What was I saying before, oh yes the kitchen and the, oh fuck yes that hit the spot, shit hang on a sec.'' Zipp mentally grasped the last of her reserved willpower. ''Don't worry about the kitchen and cleaning staff, they most likely knew long before I did about you being pregnant. They might quietly gossip and, unf fuck that was deep, fuck, try to guess what you're pregnant with but remember, it's an open secret. No one's gonna openly talk about it. As Mother would say, It's not right or proper to speak about such private affairs..''

Zipp was quiet for a minute, just enjoying the feeling of being used. ''Oh fuck yes, I'm at the height of my heat tonight, there's no way I'm not gonna get pregnant. If mom found out we both got pregnant, I don't think even that crystal on her crown would survive the shitshow.''

Pipp, who had begun rubbing herself with a hoof, look to Zipp. ''Wait you've been pregnant before?'' She asked

''Remember that time I made you promise not to tell Mom about that rabbit mark you spotted on my inner thigh?''

''You said it was a temporary tattoo.''

'' I wasn't lying about it being temporary. If you'd focused on sex-ed you'd have learnt that paternity marks only last while you're pregnant and soon disappear after birth.''

''So..?'' Pipp wasn't sure if should ask the question but decided to anyway. ''How many times have you been pregnant?''

''This'll be my fourth if I'm lucky. My first was like you. I was trying to get rid of my heat in our family pool and one of the palace guard dogs found me. Just as he knotted me Mom walked in, You remember her sending me away for summer camp? I was actually sent to our villa outside the Zephry till the pregnancy ended. My girls are still guarding the east-wing barracks.''

''Second was the rabbit, I was in the hills parkouring about when I got stuck in between a pair of boulders and the little shit saw me and took his chance. Let's say, It's definitely true what they say about rabbits. He did help to free me after though. Zoom helped me find homes for my bunnies.''

''The third time was also Zoom's first, can you believe it? She's in her thirties and didn't get pregnant till a year ago. I was trying to lose her just outside the walls when we crashed into one another smacking our heads together. When I came to I saw Zoom still K'Od and a fucking rattlesnake, well, fucking her. Did you know they don't lay eggs but give birth to live young? After he was done with Zoom he just waltzed over to me, I was far too horny to say no. Did you know they've got two dicks? Let me tell you they know how to use them. He kept going between me and Zoom till she woke up. I think between us we birthed nine wigglers. As soon as they were big enough, we let our little danger noodles loose in the wild, Zoom kept one of her sons, It's in a glass vivarium in her office. Scares the bejeezus out of the new recruits when she takes him out to show them. Pipp? Pipp?''

Glancing between her legs, Zipp saw Pipp had long lost interest, now solely focused on the show she was getting from her front-row seat. Before Zipp could grab her attention again Spotty decided to go onto the main course. She could feel his knot beginning to grow and batter against her, wanting to enter her sacred inner sanctum. With the last of her willpower now gone all could do was prepare for her performance.

Pipp watched as the bulbous bulldozer that was Spotty's knot smashed itself against Zipp's pussy like a battering ram. Her face was covered in a mixture of both Zipp's and Spotty's fluids. She didn't care, she was enthralled by what was happening. She was about to see Spotty, the father of her unborn pups, about to inseminate another mare, her beautiful sister no less. Her imagination ran wild as her desire painted a picture of her and her sister on a bed making out and holding hoofs, their distended bellies fat with puppies brushing against each other. That very thought sent her over the edge.
She bit down hard on her golden hoof stifling a squeal and her hindlegs closed together tightly as her orgasm rocked her body a second time that night.

Zipp let out a banshee-like scream as her pussy finally gave in, Spotty's knot victoriously entering her and lodging it inside. No matter how much he tugged it, it stubbornly refused to budge. Zipp gave over to pure lust as her own body orgasmed a storm within her. She felt the knot plugging her pussy, not allowing a single drop to escape. She could feel him fill her birthing canal with his meat spear. She could feel his very tip piercing her cervix, his puppy batter spilling into her willing womb.

''OH YES!'' Zipp screamed out. ''YES YES YES YES OH FUCK YES. THAT'S RIGHT SPOTTY I'M YOUR BITCH. BREED ME YOU FUCKING HANDSOME BEAST. IMPREGNATE ME. GIVE ME ALL YOUR PUPPIES.''

As her sexual high wound down, Zipp's body relaxed, her head and neck lazily hung low and her eyes closed. Her outstretched wings slowly lowered to the mattress, as her tail tried to lower itself but was unable to due to Spotty's fat cock still lodged in her. Only her pussy was still active as it madly winked around the invasive host, trying to milk every last drop of Spotty's precious seed.

After a while, Zipp noticed that Spotty wasn't moving. Opening an eye and glancing over her shoulder she saw that the poor dog had fallen asleep on her, his head snoozing between her wings and his forelegs limply swinging by her hips. Despite the dead weight, she couldn't help but smile.

'Hey, Zipp.'' A tired voice sounded below her.

''Yeah?''

'' If Mom ever orders us to get rid of Spotty. Let's agree to depose her.''