It's all about the size...

It had been a while since Spike's rather lewd experience with Twilight and Spike was actually grateful that Twilight didn't ever mention it or bring it up in conversation, almost acting as if it had never even happened. Spike wanted to move on from that and forget it for a while, especially since he was enjoying a nice time down at the beach with all of his friends. Pinkie had surprised everyone with a free trip down to the beach, it wasn't a special occasion or anything, she just figured they could all use a holiday and she thought the beach would be a fun place for all of them to go, whether it was to relax, have fun or, ideally, both! Being a reptile meant that Spike got to enjoy being full of energy at the beach as the blazing sun heated up the cold blood in his veins and gave him the strength to enjoy actually spending time doing things with his friends... though that wasn't to say it didn't come without any kind of challenge.

The challenge actually came in the form of his friends, every single one of them. Like every mare in Equestria, Twilight, Pinkie, Rainbow, Rarity, Fluttershy and Applejack had bottoms that were beyond ridiculous in proportion, something that Spike became extremely aware of when they had darted into the nearby beach huts to change out of their already ill-fitting skirts that drew attention to their butts more than cover them and into bikini wear so skimpy that the only proof of their existence was the waistband, the rest of the thin fabric having been swallowed up by their respective set of cheeks. With their butts more on show than ever, Spike insisted that he be allowed to keep all of his casual clothes on despite the sweltering heat, all of them pleaded with him to get more comfortable so that he didn't spend the whole time working up a sweat, though eventually accepted it, even if Twilight smiled to herself because she knew he was only doing it to cover up his inevitable erection.

Spike remained calm for the most part as the girls all relaxed in the shade of their beach umbrellas, eating their packed lunches, sipping on cold drinks and maybe reading a book through the dark lenses of their sun glasses. Things got a little heated when Spike was asked to referee their game of buck ball, a job he didn't too terribly well at considering that his focus kept being stolen away by the players, or more specifically, the huge jiggling masses of clapping ass flesh on the players. Though the worst part was yet to come, the girls all set down towels on the sand and lied down before Pinkie went "Hey Spike, would you mind fixing us all up with some sun tan lotion?" Spike froze, all the girls were lying on their front with their butts basically on full display already and now he was being asked to rub lotion all over them?

Spike went "Uh... well, what parts of your body need it?"

Pinkie giggled and went "All over ya big silly! We all wanna get a nice tan but we don't wanna burn our buns! Now hop to it and start spreading!"

Twilight had to hold back a smirk, Spike was gonna melt with arousal considering that there were six mares, all with huge rumps of course, waiting for him to smother them with lotion and she imagined that Pinkie saying "start spreading" took on a much different and more sexual connotation in the mind of her horny and dorky little dragon friend. Spike looked to Twilight, silently begging for help or at least a hint as to how he could get out of doing this... but no such assistance was provided as she simply put on a smug face and said "Yeah, come on Spike, what could possibly be the problem? All you gotta do is start with me and go down the line, just sit on our backs and rub the lotion into our skin, simple!" Spike conceded defeat and picked up the lotion, unscrewing the cap as he sat on Twilight's back and began to squirt the protective cream along her shoulder blades before working it in, making sure that the lotion coated and soaked in to as much surface area as possible.

Twilight hummed and went "Oohh... your claws feel really good Spike, have you ever thought of a job at the spa?" Spike was trembling as he silently continued to concentrate on making sure Twilight wouldn't get a sun burn... so Twilight had to make it more difficult of course. Twilight lit up her horn and applied a rubbing motion to Spike's crotch, giving as little stimulation as she was able to her assistant's already painfully hard dragon dong. Spike was shaking all over, why did Twilight have to torture him like this?! It was tricky enough just being near so many gorgeously toned and rotund backsides! Twilight said "Mmmmm... lower Spike... much much lower please..."

Spike knew what she was doing, edging him and denying him orgasm on top of forcing him to have to eventually touch her bubble butt for the sake of "Not getting a sun burn", luckily salvation came from the very pony who was the product of his temporary torment. As much as Twilight was enjoying Spike's hormonal suffering, she didn't actually want to get too dark a tan and Spike wasn't doing a great job, too petrified and aroused to effectively coat her skin properly, it also didn't help that she could slightly feel his stiff prick poking into the small of her back as he resisted the urge to start rubbing his groin up against her, even if it was just her back. Not too keen on having Spike jizz in his pants, she ceased her rubbing so that his balls remained very much full and snatched away the bottle of lotion and saying "Oh Spike, as nice as it feels, your technique and coverage is terrible, I'll do it"

Spike removed himself from Twilight's back a quivering mess, being surrounded by so much pure and thick booty with no way to alleviate his stress was a nightmare! No thanks to Twilight messing with him! Spike distanced himself to ensure that Twilight wouldn't make a show out of her using lotion on all of her friends and decided to calm himself down by doing mundane beach activities, namely, building a sand castle. Spike managed to settle down for the most part while the girls all continued to bask in the sun, having since turned over to get a nice even tan on the front of their bodies, Spike had just finished construction on a sand castle that was his best approximation of what a castle would look like if you mixed Ponyville and Canterlot up together in a blender when Twilight waltzed over and said "Hey Casanova, we're almost done tanning and we were gonna go for a swim, you with us?"

Spike thought for a second, there was sure to be a lot of wet and bouncing female body parts if they went for a swim but the water was probably deep enough to hide any stiffness, then again, if the water was cold enough then he might not even have to worry about that! Spike nodded and went "Sure!"

Twilight nodded and went "Alright, you go and get changed while the rest of us finish up, try not to ogle us on your way to the beach huts, it's bad enough that all mares have to fend off stallions from groping our derrieres so we certainly don't need a tiny teenage dragon with a tiny teenage dick salivating at the sight of us, alright? Fantasize if you want but not many mares are gonna be keen on taking you inside them and having to ask if you're in yet, so keep your dirty dragon desires to yourself and jack off if you need to, you little pervert"

Spike gulped, a blush on his face and said "You... y-you got it!" He didn't quite understand Twilight's reason for demeaning him, it seemed to be a common occurrence ever since the incident but it didn't really stop his body reacting. Nevertheless, he quickly made his way over to the nearest beach hut with his swimming shorts to finally change out of his clothes and get into something that was probably more comfortable and would expose a little more skin, perfect swimming gear! Spike put his trunks to one side and began to strip, he was glad that these beach huts were here, if he'd had to take his clothes off on the beach then he couldn't imagine how Twilight would torment him and yet again manage to give him a boner. Though of course, things weren't perfect for long and it was just as he was down to his underwear that a certain pink pony barged in without noticing that the hut was already occupied and inadvertently pinned the poor dragon to the wall with her gigantic ass.

As Spike was reeling from being so suddenly crushed by the enormous pink cheeks, Pinkie went "Alright! Time to get changed into my super duper awesome swimsuit! Sure wish this chair was slightly bigger and more comfortable though, you'd think they'd make it more accommodating since us mares always have so much dump truck booty to park! We need the space! It's bad enough that I can barely squeeze myself into this hut as it is!" Pinkie obviously hadn't realized that the thing she had her butt pressed up against was actually a dragon with a painstakingly difficult to hide erection rather than a simple chair, despite not having great mobility in his current predicament, Spike was able to get his claws on the waist band of Pinkie's blue bikini wear and give her a slight wedgie as he pulled on the waist band and released it so that it snapped back in place to alert Pinkie to his presence.

Pinkie let out a little yelp and turned to see what was going on, she gasped with wide eyes and immediately said "Oh my gosh, Spike! I'm so sorry! I thought this hut was empty!" Pinkie squatted a little, moving her pink posterior down Spike's body and finally allowing him to breath again. Spike's face went back to a normal color as he took in large gulping lungfuls of air, Pinkie went "Oh Spike, are you OK? I hope I didn't hurt you too much, it's just that-" before stopping abruptly mid-sentence as she felt something firmly wedged in her ass crack, something other than her bikini, she wiggled her rear a little and a small grunt from Spike confirmed her suspicions as she giggled "Oh my goodness Spike, is that thing in between my cheeks your dick? Aaww it's so titchy! It's like a baby carrot! Sooo cute! That's as big as it gets when you're hard huh? Can you even fuck a girl with that thing?"

Spike was starting to sweat, though not from the heat this time. He knew that, for a pony, his equipment was small but by dragon standards he was actually pretty average, he didn't need another one of his friends always pointing out that not even a filly would want a cock so tiny. Before he could formulate an answer, Pinkie hummed in thought as she poked her head out of the door and looked from side to side, the coast was clear and the rest of the group were still getting changed. Pinkie looked back at Spike with a wry smile and said "Well, we can't have you walking out of here with a stiffy can we? So how about I give the little guy in your underpants some lovin' huh?" Spike didn't have enough time to even question what was happening as Pinkie started grinding on his crotch, rubbing her butt up and down his throbbing length.

Spike groaned, his cock wasn't even touching Pinkie's rump and it was still leaking pre like a faucet, he'd have to wash them when he got back to the castle. Pinkie chuckled as she went "Yeah, you like my fat juicy ass Spike? Better hurry up and cum for me, don't want the girls to come looking and find us halfway through this sweet hot-dogging huh? You certainly feel very pent up... not getting much action? It's not surprising really, you don't exactly measure up in the same way stallions do, even the smallest of colts can show a mare a good time! Your fuck stick is just kinda pathetic but that's what makes it so adorable! Come on Spikey! Empty those beach balls! We still gotta get changed after this!"

Spike breathed heavily, the way Pinkie gyrated her hips, bouncing up and down, swiveling around in circles and shaking from side to side... it was almost too much! How was she so expertly milking his dick through two layers of fabric? It didn't make sense but Spike soon found that he didn't care as his nuts tensed and he let out an almost boyish moan upon firing several thick ropes of semen directly into the tent he had pitched in his undies, staining them with his nut butter. Pinkie grinned and said "Pleasure doing business with you little lizard! Think I'll find a beach hut that's empty so I can get changed, or if I happen upon a stallion, maybe he can actually show me something impressive! Or maybe a mare I can bash booty's with? Either way, it'll be something better than your puny prick, later!"

Pinkie left the beach hut and as Spike came down from his orgasm, he had only one question, why hadn't Pinkie just left to find another beach hut that was empty in the first place?!