It's all about the size...

It had been at least a week since Spike had fallen prey to Pinkie and the extremely pleasurable butt job she had delivered to Spike after accidentally cramming herself into the beach hut he just so happened to be changing in. When Twilight had discovered how fun it was to tease the young drake and belittle him, she at least had the good decency of keeping that piece of information to herself, Pinkie however had gone and blabbed it to all of Ponyville, so now every mare and filly who had a big backside to flaunt, which was all of them, took whatever opportunity they could get to rile him up and get hard in public, forcing him to find the nearest toilet to jack himself sore in. It was almost worse in public because, most of the time, ponies only wore clothes on special occasions, sure they mostly wore clothes that barely hid anything anyway but the idea of them being naked at all was enough to get the motor running, so getting an erection in public was almost guaranteed, he was just thankful that most ponies weren't able to notice it so easily on account of his jeans......... most ponies, not all.

There were two ponies who had kept their eye on Spike for a while, looking for all the tiny little details and telltale signs that other ponies failed to notice, all the tells that gave away that he was pitching a tent in his pants and was trying to keep calm, collected and casual about it in the hopes that no one would notice...... but they noticed. When it came to being cruel, they considered themselves to be top tier, the cream of the crop when it came to being the meanest bitches around, a title they had earned and wore proudly, so the chance to pounce on this weak little dragon and sexually torment him? It was every bullies dream and if they were anything other than just little ponies, they were bullies! Something the CMC and almost everyone else were quite aware of considering the years of emotional and physical abuse.

Diamond Tiara and Silver Spoon were the biggest bullies in town, the best of the best when it came to being horrible ponies and crushing weak and innocent ponies under their hooves, ask anyone in Ponyville who the worst little fillies around were, all of them would have said Diamond Tiara and her gal pal Silver Spoon. Once gossip had spread that Spike was an awkward loser with a small dick, it was like Hearth's Warming had come early! The two fillies finally found the perfectly primed opportunity to put their fat butts to some good use! They bided their time, carefully stalking and studying their prey, checking for weaknesses like the fact that his eyes just wandered from one set of cheeks to the next, the slight change in his walk that signaled an erection that he was trying and failing to hide, the way he would freeze and start sweating whenever a mare decided to tease him, usually followed up by him zipping off somewhere to fap once the mare moved on. Any guy who looked like they had just finished exercising after coming out of the toilet had undoubtedly been masturbating.

Diamond and Silver wanted to wait for the perfect time to strike, they weren't sloppy when it came to their victims, it was the way they structured their bullying that had made them so effective at hurting so many ponies over the years, they weren't slouches who would fall asleep on the job! They were cold and calculating little fillies, they were good at what they did and they drew a bizarre, twisted and sick perversion of pleasure from being sadistic, even if the sadism seemed subtle and harmless, it was the joy they derived from it that made what they did so nauseating. There was no point to their evil, they just enjoyed it, mocking any pony for any reason no matter how depraved and wrong it was, making fun of those without cutie marks, pointing and laughing at the disabled, making offensive jokes about the elderly, there was no line they didn't cross and no level they wouldn't stoop down to in their effort to be the best bullies Equestria had ever seen. They had always gone too far... and gotten away with it, now it was Spike's turn to suffer, it was sexual suffering true but it certainly wouldn't be pleasant. The words "kindness" and "pleasant" weren't in Diamond and Silver's vocabulary when it came to picking and choosing the next subject of their special brand of genius, specially crafted to demean everyone who wasn't exactly like them, which was a lot of ponies and especially this one particular dragon.

The vile and villainous plan was set in motion, Spike was walking through the middle of Ponyville where practically everyone could see him and they were both following him close behind. With perfect coordination they sidled up next to him until he was flanked on both sides and did their customary greeting to each other. With a smile, Diamond Tiara casually just said "Oh hey Silver Spoon! Long time no see!"

Silver Spoon grinned and went "Hey DT! Haven't seen you for a while, huh?"

Then in unison they chanted "Bump, bump, sugar lump, hump!" Spike was caught in the crossfire as they smashed their rears together, he was hard almost instantly, sure he had to deal with fat asses on a daily basis but at least he only had to put up with one at a time, he was being subjected to double the booty!

Silver Spoon, being rather dramatic, lamented "Oh no! We got our chant wrong! We don't say "hump" at the end usually, do we?"

Diamond gasped theatrically and said "You're right! Let's try that again!"

Again they spoke in unison as they went "Bump, bump, sugar lump, pump!" Spike was once again trapped in between the fillies as they pressed their big butts together, he was certain that they were doing this intentionally, how could it not be on purpose? Then again he'd become somewhat used to the occasional mare playfully teasing him but these two were taking it to the next level.

Diamond Tiara shook her head while going "No no no, that can't be right can it?"

Silver went "You're right! What's the word we are looking for? Is it chump? Dump? Lump? Oh wait! I remember now! You ready DT?"

Diamond grinned and said "You know it bitch!"

Speaking in sync once again they both went "Bump, bump, sugar lump, rump!" Spike was sweating profusely as he was momentarily smothered once more by the two of them banging their butts together.

As they separated, Diamond smirked and said "Hey Spike! Enjoy us clapping our asses together with your head in between them?" Diamond faced away from Spike and started shaking her rear right in front of his eyes, the two cheeks wobbling like two big bowls of jello. Diamond continued "You like this ass huh? Does my tight, young and barely legal booty turn you on? Are you a dirty little filly fucker? I bet you are, I can feel your eyes roaming all over my curves, you're just dying to grab onto my hips and defile my innocent little holes with that poor excuse of an erection! I can't even see it properly and I can tell that you don't even have a dick worth sucking, let alone being shoved up a fine piece of ass! Still, you like the view, right?"

Spike just stared, his mouth tried to form words but his voice died in his throat, then he got the shock of his life as, in the middle of the street, Silver Spoon approached him from behind and grabbed onto the waistband of his jeans before pulling them down until they were around his ankles, exposing his underwear and the stiff dragon cock that they were containing. Silver laughed and said "Ha! Nice boner, loser! You think that thing is good enough to please anyone? I could buy the smallest strap-on ever made and I'd still be bigger than you! I could fuck a girl and she might actually feel it!"

Members of the public, Spike's friends included, had started watching the spectacle play out and were chuckling. Spike's face went bright red with embarrassment and he scrambled to try and pull his jeans back up but Silver was there to ensure that he wouldn't be covering himself up anytime soon as she said "Nuh-uh! Don't you dare fucking pull your jeans back up you fucking wimp! It's not like you've got much to cover anyway! Though if you really really need to have your good-for-nothing cock hidden from view, then how about you stick it inside my girlfriend? It would give you your one and only chance to prove yourself. What do you think DT?"

Diamond shrugged and said "Sure, go ahead, I don't have anything better to do and who knows? Maybe if he sinks it into my ass, then I might feel something!"

With that decided, Silver shoved Spike forward until his hips connected with Diamond's rump. He shivered nervously as he peered down at the tight pucker of her ass hole and reached for the waist band of his underwear... shortly before Silver slapped him away and said "Oh no no no dragon boy, a stallion could wear five pairs of underpants and still rut good enough to make a girl cum! You're going in with them still on or not at all! This is probably the most generous any girl will ever be with you so don't fucking turn it down! I can guarantee that no mare or filly is gonna feel so sorry enough for you that they would actually let you feel their insides! So keep them on and fuck her if you can you little bitch!"

Spike gulped and shuffled forward before gently gripping Diamond's waist and softly moaning as he effortlessly sank every inch of his fuck stick into her back door, the feeling of being inside her but only able to experience the exquisite warmth of her flesh through the fabric of his underpants was surreal, it was like he was about to fuck a cheap and poor imitation of a mare like some kind of home-made flesh light. Spike would have started thrusting of his own volition, not that he had much of a choice in fucking Diamond Tiara up the ass in the first place, though the decision to start thrusting was taken away from him when Silver Spoon got impatient and used her hooves to grip his hips and start to control his thrusting manually, his crotch plapping gently against the thick rear he was currently balls deep in.

Diamond Tiara, seemingly confused, asked "Why is he thrusting? He's not even in yet..."

Silver snickered and went "He is actually!"

Diamond went into hysterics and exclaimed "No way! You're not serious! He's really fucking me? I don't feel anything! There's nothing! You're kidding me right? You're bullshitting? If he's in then it's just, like, it's only the tip isn't it?"

Silver shook her head and went "Nope, swear on my life he's got the whole thing inside you from tip to base!"

Diamond Tiara couldn't stop laughing, her eyes welling up with tears as she said "Oh my goodness, that is fucking hilarious! I've seriously never felt so empty while being fucked in my entire life! Geez, put that loser out of his misery and make him cum so that we can go find a real guy to pound us silly the way a proper male can!"

Silver simply nodded and amped on the speed on her forced thrusting, despite Spike's best efforts, it was only a couple of minutes later that he couldn't hold back and his underwear were quickly soaked in cum, his ejaculation clinging to the fabric and nothing else as he nutted harder than he ever had, groaning loudly. Once he was spent, Silver Spoon pulled him out of and away from Diamond Tiara before pushing him to the ground and saying "You fucking pussy" before walking away with Diamond Tiara by her side.

As Spike sat there in the dirt with his jeans around his ankles, one question came to mind, why had everyone just stopped to watch instead of helping him out?!