Twilight was warning about an impending disaster, while acting twitching and generally paranoid. In other words, it was a typical day in Ponyville. The relatively calm atmosphere was suddenly interrupted with the arrival of a massive, slobbering dog monster.
"It's Cerberus!" Daisy screamed, "The horror! The horror!" Many of the ponies scattered. Amidst the confusion, three confident mares walked slowly against the panicked tide of ponies to face the monster.
Rainbow Dash flew up and brandished her fore-hooves as though she planned on punching out the beast. Applejack had her lasso and was fixing to hogtie the creature. The last pony attempting to take on the monster was Vinyl Scratch, who was pushing her bass cannon forward.
"I've got this," Vinyl Scratch said, "Everypony knows music soothes the savage beast." Soon the streets were cleared as all other ponies headed indoors and watched the scene unfold from the safety of their homes. The three mares stood in defiance of the massive dog that threatened their town.
The monster's reason for being there that day wasn't anarchous, it was amorous. The feminine scent of a large population of mares had been like a siren's call to the horny hound. As the three mares glanced below his hind legs, they stared in shocked horror at the dog's erect junk.
Cerberus technically had six heads; three above and three below. His three firm doggie members were each six feet long and had the girth of a grown oak tree. At the base of each of his cocks was a swollen dog knot. Cerberus only had one ball sack, but it was large enough to accommodate his triple dicks.
"Tarnation!" Applejack exclaimed, "I haven't seen that many firm knots since I went to Appaloosa's lasso competition!" Not wasting any time, Applejack lassoed the dog's pendulous gonads and tugged hard. Cerberus yelped out in pain before pinning Applejack under his paw to stop the assault on his balls. Applejack struggled to free herself, but she was at the mercy of Cerberus.
"Hang on, AJ!" Rainbow Dash said, "I'll save you!" The pegasus swooped down to rescue her friend, but the dog's other fore-paw slammed down and grounded the flier. Before Vinyl Scratch had time to react to all of this, the dog's middle head reached down and ate the mare's bass cannon in one bite.
The strong musk of Cerberus filled the noses of the mares and was slowly starting to remove their inhibitions. They struggled to resist, but Cerberus was determined to have his way with them.
He lifted his paws, freeing Applejack and Rainbow Dash. This was only done so as to allow his tongues to give the three mares a slobbery tongue bath.
They lay on their bellies as the thick tongues moved up their entire length. The three mares choked when their mouths became filled with doggie drool. Their coats were a matted, sticky mess.
Now that his mares were sufficiently slick, Cerberus sat on his haunches, with his three dicks sticking straight out. Extending his fore-paws, he gestured for the mares to climb on. The animal's musk had done its job and reduced the females to creatures driven by hormones. They walked onto his soft paw pads and Cerberus gently lifted them off of the ground before depositing them onto the base of his cocks.
The three mares were still slimy from the tongue bath as they began climbing his dog members. Once they had shimmied up near the bulbous heads, they gripped around the base of the bulb and hung on for dear life. Cerberus let out a loud, happy bark from each of his three heads.
Applejack, Rainbow Dash and Vinyl Scratch began humping against the beast's cocks. The mares gave groans of pleasure as their clits rubbed against his hot shafts. Cerberus leaned back in a blissful state, enjoying the sensation of the three mares grinding against his members. Precum dribbled from his tips and formed small, sticky pools on the ground. The dog's saliva, which coated the mares bodies, acted as a perfect lube.
Each of the beast's members were twice the length of a pony's body. The three mares inched forward and pressed their marehoods against the back of the dog's bulbous cock heads. They continued happily humping the hound as they hugged his hot penile heads.
"Now these are some good vibrations!" Vinyl said enthusiastically. She held on tight as her legs clung to one of the beast's throbbing shafts.
"This feels even better than that one time I humped Bloomburg's trunk!" Applejack said, breathlessly as she eagerly rubbed her nub raw against the doggy's dong.
"So awesome!" was all Rainbow Dash could manage to say. All three mares felt their own climaxes building within them.
"I'm cumming!" Applejack, Rainbow Dash and Vinyl Scratch screamed as they sprayed their femme jizz on the cocks of Cerberus. Their mare juices continued to squirt as they embraced their orgasms, while squeezing the dog's knobs. Watching the mares cum on him was enough to bring Cerberus to climax. The beast let out a howl of pleasure as he shot his loads.
Applejack, Rainbow Dash and Vinyl Scratch were close enough to watch the ejaculation right before their eyes. They could feel the powerful stream of semen flowing underneath them as it made its way through the monstrous shafts. Jizz blasted from three cocks and flew through the air before splattering on the ground.
Overcome with wondrous curiosity, the mares put their hooves forward to touch his cum as it shot from his shafts. The pressure pulled Applejack, Rainbow Dash and Vinyl Scratch away an caused them to fly through the air, riding separate streams of dog jizz. They arced before landing on the ground with a splat. The small pool of semen that was already on the grass broke their fall.
Still horny due to the monster's musk, the three mares crawled towards each other through the sperm and began making out. They licked the cum and dog saliva off of each other's bodies as more puppy paste rained down around them. Applejack. Rainbow Dash and Vinyl Scratch lay in a pool of dog semen and started eating each other out. Applejack stuck her tongue inside Dash's marehood. Vinyl had her nose buried in Applejack's pussy and Rainbow Dash was happily sucking on the DJ's joy buzzer.
Once he shot his last loads, Cerberus lay there contented; basking in his afterglow. After a few moments, the hound left, having done his business. The three mares were being completely controlled by their lusts as they continued screwing each other in a sea of Cerberus sauce. The other mares of Ponyville stared horrified at this public display of wanton carnality.
