Twilight’s Dragon Greed Experiment

by Very Sleepy

Rating: mature
Tags: Slice of Life, My Little Pony: Friendship is Magic, Romance, Porn, Spike, Sex, Human, Twilight Sparkle
Length: 8798

Twilight, fascinated by the effects of greed on dragons, designs an experiment with Spike as she attempts to coax the boy into using her body. All in the name of science of course.

Humanized Equestria Story. Taking place after the episode: Secret of My Excess. Aged 18+ in case anyone was wondering.

It’s amazing what greed can turn a dragon into. One moment, a dragon is given some measly trinkets, the next thing you know he’s rampaging through town as a several stories tall monster.

Being the huge nerd Twilight Sparkle is, she would not let this incident go without further research. Especially since so little is known about dragon physiology. Perhaps she could reproduce the effects in a more controlled environment… and at a slower pace than before. She’ll have to trigger his greed with something he couldn’t exactly steal or own… something like herself.

What's the worst that could happen?

Contains:
Chapter 1: Light action, seduction, hand job
Chapter 2: Medium action, oral
Chapter 3: You should be able to piece this puzzle together

Published 2015-07-26 00:30:05 UTC
Last updated 2015-08-26 05:11:49 UTC

The First Night

Dear Diary,

Yesterday was… eventful to say the least. Spike’s birthday lead to an expected onslaught of gifts from friends, but what we didn’t expect was Spike’s ‘dragon blood’ instincts would drive him into getting more and more stuff. Every new item he obtained would only increase his size and strength to a stage far larger than any teenage boy should have. Not only that, it seemed as though his hunger for gathering junk wasn’t quenched as his hoard grew, but rather the opposite. It only served to motivate him into getting more. No one knew this would happen because we know so little about dragons, even those doctors were worthless!

Well, I won’t bore myself with the details of his rampage since they’ll surely be engrained in my memories for life, but I can’t help but walk away from this experience being a tad bit curious about this trait Spike possesses.

I can’t be the only one who wants to see where this can go! I mean a teenage boy having the ability to grow fifty times his size! It’s mind boggling! But, even so… I best keep my curiosity a secret from the rest of town, they’ve suffered enough from Spike’s recent actions.

Currently, I theorize that I can reproduce the effect on him, on a much smaller scale of course. And not with random stuff this time, oh no. There is too much junk lying around this tree house library for him to get his grabby little hands on.

If I really want to see this effect in action in a safe environment, I need attract Spike to something he can’t steal or own, something like me! He can’t own me right? I know what you’re thinking, future Twilight reading this, that having one of my closest friends lust after me isn’t something I would normally do… but it is for science! And I’m sure Spike wouldn’t mind if he knew what I was doing, especially once he knows what I have planned for him…

Not to mention Rarity hasn’t made a move on him, and I imagine isn’t going to anytime soon, so I can’t see her minding me doing this that much. So it’s time to put my plan into motion!

~~~~~~~~~ ~~~ ~~~~~~~~~

Spike sat on one of the library’s many chairs, reading the latest from: The Adventures of Daring Do-Ra the Explorer.

“This isn’t even a good book! Why am I even reading this junk?” Spike thought to himself. Looking at the clock on the wall, it read: 10:55 p.m. “Well… might as well get ready for bed. Not like that fox was ever going to steal anything anyway”

Slowly, the teenage boy trudged up the wooden staircase that had been curved straight out of the tree library.

“Aaahhh,” He stretched his jaw as he released a deep yawn as he made his way up to his bedroom. “I wonder where Twilight has been, I haven’t seen her all night. Maybe she’s sleeping over with Rarity again or something” Finally reaching the top of the stairs, Spike entered the familiar bedroom he and his closest friend shared together, only to meet with an unexpected new sight.

Twilight stood there, completely naked. Her back was facing him as she leaned in her wardrobe on the wall. Apparently she hadn’t noticed Spike’s silent entrance.

Spike’s brain did a double flip. As quickly and quietly as he could, he scampered back behind the wall from which he entered. Throwing his back to the wooden tree, the young dragon boy attempted to steady his heart beat with a series of deep breaths.

“Twilight is naked! … in my room! But… but.. she knows I come up here the same time every day. Did she lose track of time or something?

Spike looked down to his pants. Even at a time like this, a tent could be seen forming in his crotch. “Sweet Celestia… why now? This is Twilight we are talking about! I shouldn’t be taking stares at her nude body!”

Despite that thought, Spike couldn’t help but peek up from his hiding spot. Sure enough, Twilight was still there, although half as naked as before. While Spike had hide in his spot, half fainting, Twilight had slipped on a pair of her dark violet panties, on top of which she wore a pair of lighter purple pajama bottoms, adored with stars all along the surface. Her matching pajama top and bra were currently held in hand, as the girl seemingly inspected her breasts in the mirror of the wardrobe. Unbeknownst to her, giving the dragon behind her the view of a lifetime as she held the fleshy orbs in her hands, apparently inspecting the shape and feel of her sizable tits.

Slipping back around the wall, Spike's pants now struggling to hold in his raging member. “Ohmygod! Ohmygod! Ohmygod!”

Spikkkeee!” Twilight called as she slipped on the rest of her pajamas. “You coming up to bed? It’s getting pretty late!”

Spike waited a minute for his raging erection to partially die down as he pretended he began his trip after hearing his roommate’s call. Figuring 30 seconds was enough of a delay, he casually strolled into the bedroom.

“Y-yeah, Twilight… sorry about that,” Spike shuddered in an attempt to sound casual.

“Sorry about what?” Twilight asked, giving the dragon boy a puzzled expression.

“Oh… um nothing! Never mind! Heheh,” Spike said, scratching the back of his head as he walked to the beds.

“Hey…. Twilight? Where’s my basket?” The bed basket that had once laid next to Twilight’s larger bed was no longer there.

“Oh… about that,” Twilight started nervously, “To tell you the truth Spike, I think you’ve outgrown the shabby little bed of yours. Judging from your little rampage yesterday, your body isn’t going to fit that thing very soon”

“What?! But where else am I going to sleep? There’s only one bed in this entire tree!”

“Well….” the book worm blushed “I was kind of thinking we could… share? I mean, there’s plenty of room on my bed for two people, and I trust you completely.”

“Oh…… OH!” The shocked teenage boy exclaimed, realizing what the girl had in mind. A similar blush soon clouded his cheeks as he did his best to conceal the returning tent in his pants. “Yeah… I guess that could work out. It’s worth a shot at least!”

“That’s the spirit!” Twilight giggled. “Why don’t you hop on in, while I finish up a few things around here?”

Spike tentatively lifted the covers on the bed, only to hear Twilight scold. “Spike! What are you doing? You can’t go to bed wearing that!”

Spike was taken aback. “Bet these are the clothes I always wear to bed!” He said, gesturing to the simple shorts and t-shirt he wore.

“Maybe in that old thing. But I’m not letting those dirty rags near my sheets!”

“Uggg. What a neat freak,” Spike groaned in his head. “Fine Ms. Prissy, what am I supposed to wear?”

“Just take off your shirt and pants. Guys normally sleep in just their boxers, right?” Twilight said casually as she turned her attention back to combing her purple hair.

“But..but Twilight! You’re a girl!”

“Oh relax you big baby! I’m sure you’ve seen me naked coming out of the shower plenty of times!” Twilight scoffed.

Spike coughed, she did have a point after all. Silently, he pulled his green shirt over his head, soon joined by his shorts. Both articles were then picked up by a purple orb of magic and levitated away into the hamper as Spike slid underneath the bedspread.

“Mmmm this is cozy! I could get used to this…” Spike thought to himself.

“There, isn’t that so much nicer?” Twilight asked, lifting the covers herself, momentarily admiring the near naked teenage boy who lay in her comfy bed.

Slipping under the covers herself, Twilight couldn’t help but notice how Spike turned to be facing away from her.

“Awwww, how cute,” she smiled to herself. If Spike was attracted to her, he sure did he best to hide it.

“Well goodnight Spike,” Twilight yawned to dragon, attempting to sleep beside her. “I have to be up bright and early tomorrow. The girls and I are going to beach later, so I need to go out shopping for a new bikini. Old one kept slipping off.”

Spike’s eyes instantaneously shot open. “S-Slipping off?”

“Yeah,” Twilight continued, as if it was the most casual conversation in the world. “The waves kept on ripping my top off while we were out in the ocean. To make matters worse, Rainbow Dash thought it would be funny, if she grabbed the bottom of my bikini and played keep-away with them while I was looking for the other half. And of course Pinkie was taking pictures of the entire thing,” Twilight giggled to herself. “Don’t worry though, she said she deleted them.”

“You don’t say……...” Spike wisped.

“Well night!” Twilight said, closing her eyes without another word. Leaving Spike there, now horny as hell.

~~~~~~~~~ ~~~ ~~~~~~~~~

“Stupid sexy Twilight!” Spike yelled in his mind. “Doesn’t she know I’m a dragon? These boners don’t go away easily!”

Twilight now lay motionless beside him, seemingly asleep. Meanwhile Spike could not be more awake, as the majority of his blood flow rerouted to his enlarged member. Every time he attempted to calm the raging beast between his legs, his mind shot back to pictures of his roommate, running butt-naked in the ocean as she struggled to find her swimwear.

Spike sighed to himself. “Maybe, it’s my fault… I shouldn’t be attracted to Twilight like this. She’s practically my sister for pete’s sake!” But even if that was true, there was still the matter of a raging hard-on preventing him for getting any sleep.

“I guess there’s only one thing to do…” Spike resigned in defeat. Quickly checking over his shoulder to make sure Twilight was asleep. Her eyes were shut and was breathing naturally. Good enough!

As silently as he could, Spike pulled down his boxers, leaving his slender teenage body completely exposed underneath the bed sheets. Grasping ahold of his stiff member Spike thought to himself, “I just need to rub one out real quick before she can notice! That shouldn’t be too hard right?

Slowly, Spike began to slide his hand along his length, letting out a deep growl. “Oh yeah, that’s the stuff.”

Spike’s thoughts lingered to Twilight’s story. Picturing Twilight grabbing Rainbow’s own two piece bikini and ripping the garment from her athletic body in revenge. All while Pinkie throws off her own swimsuit and films the entire thing while fingering herself. And then Rarity, Applejack, and Fluttershy all start making out, because why not!

Spike’s strokes on him member increased in speed as his mind imagined more and more perverted thoughts of his naughty friends. Unfortunately for him, his dragon hood would make it so he still had quite a way’s left before he was rewarded. His cock was throbbing as hard as ever now as a glob of clear precum dripped from the inflamed head. All of a sudden, his wrist was grabbed by a hand, and it wasn’t his own!

“TWILIGHT!” Spike shouted, louder than he realized. “I-I can e-explain!”

Twilight, who didn’t look the least bit groggy, despite apparently just waking up, looked at the boy who currently held his hands to the tent forming in the bedsheets.

“Oh my…” Twilight gasped, not a least bit angry. “Spike….. did I d-do this to you? Sweet Celestia, I am so sorry!”

Spike breathed a sigh of relief realizing she wasn’t disgusted to find him jacking off in her bed. Still though, a cute girl who slept beside him was currently grabbing the wrist of a hand firmly attached to his enlarged member. He wasn’t out of the woods just yet.

Twilight sighed, “I’ve read how a dragon’s member can stay like this for hours once they are aroused, unless he is able to…” Twilight cut her own sentence short. “Let me fix this for you Spike…”

“What?! No Twilight! I can handle this myself!” Spike said, trying to shake the tender hand that grasped his wrist. He let out a soft gasp as Twilight’s hand only squeezed tighter in response. Another droplet of precum oozed out, she was so soft, so caring! He looked between the tent bulging out in the bedsheets and his roommate’s concerned look. Spike realized the delayed climax coupled with his burning hormones only fueled his desire more.

“It’s ok! This is my fault for doing this to you, I need to make this right!” Twilight insisted. “It’s perfectly naturally for men your age to have these urges, but it’s easier to get rid of them if someone else helps!”

“But, but Twilight! You can’t….” The remaining of Spike resistance suddenly died as Twilight moved her hand to grasp onto his hardend cock. Spike practically fainted as he felt her smooth hands rest upon his throbbing member.

Twilight smiled as she felt the boy’s arms collapse to his side, allowing her full access to her prize. She began to wrap her fingers around the girthy shaft, slowly starting to a few sensual pumps along its length. This would be the first time Twilight had ever received a good impression of Spike’s cock. Even though she couldn’t see it beneath the covers, she could tell from feel alone that his dragonhood was longer and wider than what most other full grown guys carried between their legs. She had really hit the jackpot this time.

Quickening her pace, Twilight’s ears were meet with a groan of approval from Spike. The teenager had closed his eyes, completely lost in the sensation of his roommate’s skilled hands of his member as it pumped up and down. Her fingers squeezing at his cock in intervals with each up and down stroke her hand made on his shaft. Even though she had never done this before on him, it felt a hundred times better than the feeling his own hands could produce. Silently he wished for her to do this more often, no…. she had to do this more often!

Spike gripped the bedsheets tightly as Twilight pumped away at his erection. The oozing precum now served a lubricant, allowing quicker strokes as his cock slipped through her fingers at a pace that made his mind dizzy.

Twilight’s stroking and tender squeezes across his cock had him moaning and bucking his hips up to meet her fist. He was now completely regretting his earlier hesitation to Twilight’s offer, in fact, he wished she started doing this many many years ago!

His feelings towards Twilight only magnified as her other hand mischievously snaked around, cupping his balls, fondling them in tandem with her strokes.

To his side, the adorable teenager lay there, working her eager hand ever faster on his cock with her patented focus. Each twitch signaling to her his impending release, only motivating her to increase the speed of her pumps.

“Twi-Twilight…. I’m gonna…” Spike groaned as the tip of his head flared.

“Shhhhhh Spike, just let it all out. Don't be afraid to give me all that pent up stress and sexual energy. Don’t hold anything back…”

Spurred on by her words, Spike gasped in pleasure as his flood gates burst. Rope after rope erupted from his throbbing member, coating the bedsheets above and Twilight’s hand with searing hot cum. Some streams choosing to land on her arm and Spike's belly as it came crashing down.

“Mmmmm, there’s a good boy,” Twilight cooed, as her pumps continued, attempting to coax out every drop of pent-up cum the boy’s balls had to offer.

Spike did not disappoint, even as he collapsed on the bed, riding the waves of his most amazing climax to date, his dick continued to pump out streams into Twilight’s working hand.

Finally it came to a halt. His member making a few last minute spurts onto her already white covered hand, as it slowly shrank back down to its normal length. Spike breathed a sigh of relief as his rod released it's control over his brain, the blood in his body diverting elsewhere.

“Oh my… you sure had a lot stored up down there, didn’t you?” Twilight said, bring her hand to her face for inspection. Making a quick glance to insure Spike wasn’t looking, she daintily slipped a finger into her mouth to clean. “Mmmmmm, dragon seed is delicious!” She noted to herself, bringing her remaining fingers up to her mouth for the same treatment.

Meanwhile Spike lay recovering in the bed. “Twi-light… that was…. amazing!!!”

“I’m glad you liked it,” Twilight giggled, giving the boy’s stomach a rub. “It’s only healthy for men your age to release all that stored up stress from time to time.”

Spike’s eyes darted back and forth. “Well… uh… I’ve really been feeling stressed lately. What with the town getting on me for you know… destroying it and all”

“Is that so?” Twilight asked with a sultry look. “Well I’m afraid we are going to have to make this a more frequent thing then. I think I will be able to get even more of that stress out of you if I assist yourself in the matter, don’t you think?”

“O-oh, of course Twilight!”

Twilight beamed a smile. “Great! Now… let’s try and get some sleep now that this matter has been taken care of. My arms are already aching from all that work.”

“Yeahhhhhh,” Spike yawned. “I think it’s about time I hit the…” and just like that, he was out like a light.

A grinning Twilight cuddled up next to her newest snoring sleeping buddy. There was excitement in her mind, now that the doors of her plan had been opened, there was no telling what she could do with him, but all of that could wait for now. Pressing her body against the back of his as she silently closed her eyes, letting Luna's sweet embrace take her as well, as she drifted off to sleep.

Bikini Shopping

Dear Diary,

Oh my god! This is so exciting!! When I told Spike I would make it a more frequent thing, I didn’t expect everyday! Is it just dragons who are this horny all the time or all guys? Every. Single. Night. since I’ve started, Spike has come to bed hard as a rock. I haven’t even been trying to turn him on like my initial experience!

He was sooo cute during the first few times. He had an adorable tendency to slide under the covers each night, slip off his boxers, and poke my hand with his cock while his face practically pleaded with me. Of course I couldn’t say no to that look! A delicious helping dragon cum after my nightly hand jobs is just icing on the cake!

But lately he’s been getting more… grabby. It almost seems as though Spike practically expects me to jerk him off every night whether I want to or not. Don’t get me wrong though, I do, but I can’t help but think if this is a sign for things to come. On top of that, his hands seem to be up to no good. Sometimes when I’m stroking him off, his hands will sneak their way up to my chest and grope one of my tits through my PJ's. Of course, I instantly swat it away, not that I wouldn’t mind a little action myself, but because I’m afraid the more I give Spike the more he’ll expect the next time. I want to ease him into me, not all at once! To much of me at the same time might trigger an undesired effect!

Well, he still doesn’t have any clue what I’m up to, even after I practically begged that he accompany me while I go bikini shopping today. My friends and I had to put off our visit to the beach due to weather. (Which I still believe is entirely Rainbow Dash’s fault) Anyway, it may be nice to have him along to see if my new plan works. Plus, he’s been in such a happy mood lately. It’s all been hugs and kisses to me around the library. It’s like he doesn’t even have a thing for Rarity anymore!

~~~~~~~~~ ~~~ ~~~~~~~~~

“Well…. what do you think?” Twilight announced, popping out of the dressing room door in her new violet bikini.

Spike’s eyes traveled up and down the sexy book worm who shamelessly displayed her body, seeking his approval. Instinctively, his eyes lingered at the chest of his mostly naked roommate. To his disappointment, this new bikini covered slightly more skin than the last one, but still left little to the imagination. The two triangles concealing her fleshy orbs stood out proudly. Her hardening nipples slightly visible through the sheer fabric due to the store’s overworking AC unit. Below her, Spike stared at the lone piece of clothing that hid Twilight’s cleanly shaven slit. His’s eyes lingered a tad too long as his mouth began to drool.

“Spike? Spike!” Twilight called, snapping her fingers in front of the eyes of the day dreaming dragon boy.

“Ohhh, uhhh what?” Spike said as he snapped out of his trance, attempting to play it off he added, “Ummm, why does everything have to be purple with you Twilight? I wouldn’t mind a few white bikinis here and there…”

“Very funny,” she giggled.

“Why are we here anyway Twilight?” Spike asked, attempting to suppress the familiar feeling of an erection trying to grow in his pants. “Can’t we go to Rarity’s house? I’m sure she has a million different bikinis for you to try on. She probably wouldn’t even charge us for them!”

“Rarity,” Twilight started, “Is the reason I’m here in the first place. She custom made all our old bikinis, but she must have gotten our measurements wrong because they all felt too small, and I told you about the strings being too short right? They had a tendency to fall off while we were swimming at the beach.”

“That doesn’t sound so bad…” Spike chuckled to himself. Twilight shot him a glare in return.

“Well I’ve learned my lesson, unless me and the girls develop some exhibitionism fetishes anytime soon, I’m doing my bikini shopping here!”

“Besides,” She added with an impish grin, “I think I’ve found the perfect pair of swim trunks for you!” She said, holding up a set of green trunks for him.

Spike crossed his arms across his chest grumbling, “Twilight! I’ve already got a pair of trunks at home! They fit just fine. You know… everything we wear doesn’t need to match the color of our hair, right?”

Twilight wasn’t having any of it, picking up the teenage boy with her magic, she hurled him into the stall in the far end of the dressing room, the green swimwear flying after him.

“And don’t even think about coming out until they’re on! You’re either wearing them home or nothing at all!”

Rubbing his head from the impact his head suffered on the wall, Spike arose from his mess of tangled limbs on the floor. “Ugggg, I swear, if I wasn’t a dragon I would have been dead ten times over, just from hanging out with those girls,” he said, closing and locking the door to his stall.

“We… I might as well try them on,” Spike sighed to himself, pulling off his shirt. Taking a moment, he admired his chest in the mirror with a flex of his arms. For reason, even though he never worked out, his muscles seemed larger and more defined. “Odd…” Spike pondered to himself. “I could have sworn I was weaker than this just a few days ago…”

Suddenly his nose picked up a peculiar smell. He leaned into the floor in an attempt to locate what or where the smell was coming from using the senses dragons were known for.

“Is that…. arousal?!” He thought in his head, “But this is the same stall Twilight was in minutes ago, why would she be so turned on?”

Spike tried to lose the thoughts from his mind as he rose from the floor, shaking his head. “Focus Spike! Focus! You just need to hold it until tonight so…. oh no…”

Spike could already feel it as he dropped his shorts and boxers. His erect shaft stood there, confirming his worst fears.

“Oh Celestia, not now!!” The naked Spike screamed in his head, the thought of Celestia ironically not helping his predicament. “I can’t get a boner here! Everyone will be able to see it when we are walking home! And I can’t let Twilight find me like this! She’s already been helping me take care of them every night! She’ll start to think I’m some kind of sex addict if she sees anymore!”

Panicking, Spike looked around, there was nothing in the room besides a mirror on the wall and his discarded clothing on the ground. “Even if I could jack off in here, it would leave a smelly mess the store clerk would find!” To make matters worse, Spike heard a knocking on the door to his changing stall.

“Spike, you ok in there?” Twilight called from the other side. “It can’t take that long to try on a pair of swim trunks!”

“Uhhhhh, just a second Twilight!” Spike said. Maybe his boner will be able to die down if he stalled long enough.

“That’s it, I’m coming inside!” Twilight announced, still not helping the situation with her wordplay.

“No! You can’t!” Spike shouted, jumping to the door as he prepared to hold it close with all his dragon might.

Of course that didn’t do a thing as Twilight skipped the door entirely, teleporting inside the cozy changing stall with a purple flash.

“Aaaaaa! Twilight! D-Don’t look!” Spike shouted at the intrusive girl. His hands scampered to find his clothes on the ground which he could use to cover his erect junk. To his dismay, they were on the other side of the girl.

Twilight gasped as she turned around to meet him, her eyes taking in the entirety of his nude form for the first time. There stood Spike, corned against the wall, his rock hard member standing out, fully erect and throbbing. A mental smile creeped across Twilight’s mind, one that she didn’t dare let the teenager see himself.

“Oh Spike… did it happen again?” The scantily clad girl spoke with a concerned look on her face. Dropping to her knees, she scooched over to where Spike stood against the wall, his chest still heaving. Bringing her face within inches of his member, seemingly inspecting it while making sure she wasn’t making direct contact.

Spike’s heart race increased as his roommate peered at his cock. To his dismay, every beat of his heart caused it to twitch in her face as it radiated heat.

“Spiikkkee,” Twilight cooed, turning her sight back up to the boy’s eyes above her. “Have our naughty nightly sessions not be enough for you?”

Spike broke down in front of her. “I’m sorry! So sorry, Twilight! Please don’t think I’m a pervert or anything. You’re the best friend I have!”

Twilight seemed taken aback from the boy’s response. Quickly she moved to console him with a hand to his leg.

“It’s alright Spike, this isn’t your fault as much as it is mine,” she said. “I should have known taking you bikini shopping would have caused this. And my hand jobs aren’t as good as they used to be, right?”

“What? No, no Twilight! You’re great! Perfect in fact!”

“Oh there’s no need to spare my feelings Spike,” Twilight said, “You know... there’s more stuff a girl can do for a guy than just using her hands…”

Spike froze in time. She didn’t really mean she was going to use her mouth… did she? Although, that certainly would take care of the whole clean up issue…

“Twilight, are you offering to give me a... blow job?” Spike spoke, the last two words were practically a whisper.

“Mmmmhmmm,” Twilight replied with a wink and sultry grin. Turning serious for a moment she added, “But as usual this stays between the just two of us, ok?”

Spike nodded, still struggling a bit with the whole speaking thing after recent events.

“Ok…” the bikini clad girl whispered, steeling herself to the task ahead of her as she took her position kneeling between his legs. Spike could smell the musky aroma of the female before him, feeling a fire within him brighten.

Twilight leaned into him, he felt her wet tongue snake its way around the head of his member, planting a wet kiss onto it as she savored the taste.

Spike moaned in pleasure from the feeling, still not believing the fact that he was actually getting this treatment from his roommate. He never would have dreamed the girl he lived with all these years could be this damn sexy!

His thoughts were ripped back to reality as Twilight licked his smooth cock from top to bottom, sucking on the mushroom head in her mouth. She gave another lick along the rim of his head before she took him past her lips, starting a steady rhythm as she bobbed her head. The remaining of his member was finally engulfed in her hot mouth, sliding down her throat. Her tongue wrapped around every inch of him as she slid him in and out of her mouth.

Spike bit his lip to suppress a loud moan that could alert the store to their actions as Twilight increased the pace of her sucking and slurping on his cock. Spike grabbed two handfuls of her purple hair as she continued to work away.

It was an amazing sight, seeing her on his knees, eagerly taking his entire length into her mouth. But as Spike stood there, taking in the view below him he noticed something.

“The tie around her chest is undone!”

Sure enough, in her haste and in an extremely ironic fashion, Twilight had loosely fastened the two strings that held her bikini top to her chest. During the blunt of her rapid head movements, the strings must’ve loosened and fallen away. The only thing holding it up now was the knot behind her neck. Of course, Twilight had not noticed any of this, too busy giving 100% of her patented focus with the task at hand.

And that focus she needed, as Twilight took him further into her mouth and began deep throating him as much as she could. When the feeling in her tight throat began too much to bear, she would withdraw a tad, taking his member back into her mouth until she was ready to try again.

Meanwhile Spike’s mischievous hands had traveled down slightly from their grip on the back of Twilight’s hand. Reaching her neck, his nimble fingers began to softly work the only tie left holding her top up.

Success! The knot came undone as the violet bikini top fell to the floor, allowing the two trapped fleshy orbs to spill out. Spike gazed lustfully at her tits, now free and unrestrained by the cloth, gracefully bouncing and swaying with each of Twilight’s bobs. Twilight of course, had not noticed her top was now missing, and continued to not notice as Spike’s foot picked up the discarded piece, throwing it behind the girl where she wouldn’t see it.

“Oooo,” Twilight thought to herself. “His cock is letting loose it’s wildest series of twitches yet! I must’ve done something right…” Feeling the pride within her well, she redoubled her efforts, giving everything she had at pleasing the fleshy member in her mouth.

The entire scene was too much of a turn on for her! Gazing up to her lover above her she saw his face was currently arched to the ceiling, eyes closed in pleasure from her recent efforts. Figuring she was safe, Twilight’s own hand slipped beneath her waist, quickly pushing aside the bikini bottoms slightly to the side to reveal a dripping snatch. Her finger wasted no time going to town on herself while she continued to work. A second finger was quick to join in, easily accommodated given how wet and aroused she was.

From the way Spike’s cock was pulsing, she could tell he was at nearing his climax. Pushing herself even further, her moist mouth pistoned up and down on his member.

Spike felt his peak approach as the damn gates began to break. His cum building up in his balls, readying their largest quantity yet. His gazed fixed onto her bobbing head below him and her swaying tits beneath that.

He moaned as he felt his climax hit, searing hot cum rushing up his shaft into and Twilight’s mouth. Her tongue did one final lick around the tip of his cock before it relaxed, allowing the pent-up cum to splash into it. She moaned in pleasure around his cock, sucking with more intensity as she felt the boy’s member pump more and more of the delicious treat into her mouth. She breathed through her nose as she worked on swallowing every drop of his essence down into her stomach.

Something was different this time though, there was way more of the sticky substance than last time! Twilight’s cheeks bulged as the overloading cream became too much for her to handle.

With an audible ‘pop’ she used her two hands to push herself away from his member. Spike’s cock, now finally free, angled itself to the young girl, spraying copious amounts of cum onto her panting chest.

Normally, Twilight wouldn’t have had a single problem with this, but she felt something as the searing hot seed spluttered onto her chest. Looking down, Twilight gasped in horror as she saw several of ropes of dragon cum fall onto her fully exposed tits. Too shocked to respond to the sudden change of circumstances, her arms stood frozen in place as Spike stroked out the remaining ropes of cum onto his adorable roommate’s busty melons, enjoying every moment.

“Oh God! Where is my top!!” Twilight screamed in her mind, finally recovering from her daze as her hands scampered around the area searching for her the missing half of her bikini to cover herself with. Locating it behind herself for some reason, she leaned back to grab it. Unknowingly at the same time, giving the dragon boy full view of her soaking slit as Spike noticed the bottom of her swimwear was pushed to the side.

Angling his cock and stroking harder than before, Spike coaxed out several more ropes of sticky cum, landing on the nerdy girl’s uncovered pussy, before finally coming to a twitching halt.

Twilight sighed as she ceased her efforts to cover herself. It was too late, Spike had seen everything! “So much for easing him in,” she grumbled to herself. Looking to Spike, she was meet with a particular sight.

Spike just stood there, letting loose a series of deep pants as he stared at the entirety of her exposed body. The erotic sight of his closest friend and lover kneeling at his feet, his cum covering her unconcealed tits, pussy, and face was too much to bear. Something primal awakened inside of him, making him feel overcome with new animalistic sensations. He licked his lips greedily.

“Ummmm Spike? Why are you looking at me like that?”

Experiments Coming to a Head

Dear Diary,

Ok, so change of plans. Spike maaaay have received a bigger taste of what I had originally intended today. I don’t know how but there must be some sort of curse on my chest because that darn bikini fell off just like the last one did. To hell with these giant tits of mine.

But my biggest concern is Spike. I saw the lusty stare in his eyes after we finished, and while we were walking home, and all day in the library… something’s changed in him. I’m not so sure this experiment of mine was such a good idea after all.

I haven’t mentioned it to Spike, but my repeated sexual advances on him are seeming to have a similar effect on his body like his hoarding problem caused, but on a much smaller scale. His muscles seemed larger, his cock felt longer, and he even cums more! If I wasn’t so worried about him, this would probably be a dream come true for me.

But I was thinking I should play it safe tonight. If my previous suspicions are correct, he’ll want to see my naked body again tonight. I can’t let that happen, else this change of his would progress even further. So… I’ve talked Applejack into letting me sleepover for the night. Hopefully tomorrow I can come back to the library and see Spike has calmed down a bit. Then I can resume the pace I originally planned for…

~~~~~~~~~ ~~~ ~~~~~~~~~

It was almost midnight by the time Twilight had arrived back from her stay at Applejack’s. She felt as though she had overstayed her welcome at the farm already, and had no choice but to meet Spike face to face again. Sighing to herself, she opened the door to the tree library, walking in and closing it behind her, making sure it shut and locked. Checking the windows around the room to ensure she was not followed, before drawing the curtains closed. Spike was nowhere to be seen. He must have gone upstairs already.

Silently, she reached to her waist, grasping her shirt by the hem before pulling it over her head. Continuing to undress, she slipped down her shorts, stepping out of them and kicking them to the side. There stood Twilight, clad in nothing more than her bra and panties, nervously gripping an arm to her side as she approached the stairs to her bedroom.

Tentatively, Twilight tip-toed up the wooden staircase of her home while her thoughts ran wild. “Don’t be so nervous Twilight!” She said to herself in her mind. “You’ll probably just give him a quick blowjob in your underwear. That should keep him happy and satisfied for the time being, right?”

Twilight took another step up the stairs as a series of different thoughts hit her. “But maybe… I should let him do what he wants with me. Think about it Twilight! A muscular dragon wielding a cock like that… he could drive me insane with a single fucking. And it’s been too long since I’ve had a dick inside me…”

Another step up the staircase. “No! No no no no no no no! He’s your friend Twilight! For all you know he doesn’t even want this and your just using his dragon instincts against him! That would be cruel!”

Her foot hit the next stair on its way up, stubbing her toe. “Ow. But how could it be cruel if I’m giving him pleasure? It’s a win/win for everyone involved!”

“Well... not quite I guess. If I let him rut me senseless tonight who knows what he’ll turn into tomorrow. Next thing I know, I could be converted into his personal cum dump slave.”

“Ok! It’s settled then. Nothing too risky… just a simple blowjob, then we are off to sleep. If he wants more, I just need to learn how to say no.”

Twilight repeated the thought in her mind, “Just so no. No, no, no, no, no-wha?”

Twilight entered her bedroom, but was not greeted with the sight of Spike there, cock in hand, waiting to impale her innocent snatch with it. Instead, he lay with his back to her on their bed, seemingly asleep.

Twilight stood there for a full minute, part surprised, part waiting for something to happen.

But nothing happened as she stood there, silently waiting. Figuring to herself, “Hmmm, maybe I’ve just been freaking out again over nothing.”

“Perhaps he doesn’t feel greed towards me like I originally hypothesized,” she thought, breathing a sigh of relief, with a hint of disappointment.

Quietly, Twilight approached the bed. She drew the covers of her bed where Spike lay, taking a moment to admire his new well-toned body. It almost seemed as if he was taller than her now. Slipping underneath the bedspread, she made herself cozy while thinking, “Heh, maybe everything will even be back to normal tomorrow.”

Spike yawned as he flipped over on his side to face Twilight’s back, slipping a strong arm over and across her soft chest as he spooned her.

“Awwww,” Twilight thought to herself. Silently, she yawned as well as she closed her eyes. “I guess it was all just my imagination.”

Her eyes shut as she let sleep take her.

The End

Wait… not the end. Twilight’s eyes pried open. The arm that Spike had wrapped around her… was it holding something? It felt like a book. Was he reading in bed?

Her suspicions came to a head as the book held in front of her shook. She could recognize that embezzled pattern anywhere, the flowery scent, the purple leather cover…

“MY DIARY!!” Twilight screamed in her mind. Her body tensing up as she felt Spike’s arm curl around her.

“You’ve been a naughty little girl, Twilight,” A deep voice from behind her whispered into her ear.

Twilight’s body started to tremble in his arm. Her mind slowly coming to terms with the situation she had just willingly inserted herself into. Certainly, regretting her choice to come to bed in nothing but her underwear.

The hand across her chest moved in, idly groping a breast through the thin fabric of her purple bra. It roughly pinched a nipple, causing Twilight to bite her tongue to suppress a moan from the rough treatment while the dragon behind her continued.

“I had my initial suspicions a while ago, Twilight, from the way you’ve been acting lately. Turns out all I had to do to confirm them was fish around for this little diary here. Clever of you to hide in it inside the last place I would ever look for. I never did understand why you kept that ‘A Brief History of Brief History Books’ around, until I discovered the insides had been hollowed out, with this little gem inside it.”

Spike’s hand released her tender nipple, now moving to her stomach as he gently rubbed her side.

“So, you wanted to play with me… here I am.”

“Spike… heheh,” Twilight whimpered nervously, attempting to sound calm. “You can’t seriously be mad about a little experiment on you, right? I-It was all in good fun!”

“Oh I’m not mad, Twilight,” the husky voice behind her spoke, giving the nape of her neck a few sensual kisses. “In fact, quite the opposite. I’m thrilled to feel like this. I’ve never felt so alive!”

Twilight could feel the warm breath of the dragon behind her, traveling down her backside. Her hair stood on end.

“Heh, good. Great! I guess if you’re not upset then, I guess I’ll just be catching some sleep then!” Twilight chuckled timidly.

“Oh no no no, Twilight,” Spike went on, his hand venturing downwards to her hips, plucking up the strap of her panties along the way. “Do you remember all those times you told me… we should all finish what we start?”

“Uh huh,” Twilight nodded uneasily, knowing exactly where this conversation was doomed to head.

Spike gave a devilish grin, savoring every moment as he tantalizing pulled his roommate’s panties down at an agonizingly slow pace. Finally pulling them free from her legs, he threw them, along with the bed sheets above them, to the floor. His eyes glazed over to the target that would soon be his.

Twilight gave a quick meep and clamped her legs shut, attempting to hide her now exposed nethers. Spike, on the other hand, barely noticed. Using his newfound strength, he pried her legs apart with his hand, which promptly went to work feeling her quivering folds.

Spike smiled from ear to ear. She was as completely wet, her walls easily parting as he inserted a finger. The tension in the room was getting to the girl, as she let out a whimper at his intrusion. Coupled with the undeniable scent of arousal coming from between her legs, there was no question what she wanted to happen.

“You should really stop trying to fighting it, Twilight. Learn to accept your baser desires. Just like you taught me to.”

Twilight would be lying if she said she wasn’t considering it. Choosing not to struggle any further as the dragon’s rough treatment continued. His hand tightly gripped the front of her bra, giving them it a firm pull. The flimsy fabric was no match for his strength as the straps ripped open, the teenage dragon throwing the ruined bra onto the floor.

The trembling girl just lay there, now completely naked, at the mercy of the sex-crazed dragon behind her. His other hand joined the fray, groping at her newly exposed breasts while the other resumed its work between her legs. She shuddered in lust at the feeling of the boy playing with her body as if she were nothing more than his toy. Suddenly, she felt something poke at her butt, before resting between her legs.

“Is that seriously what I think it is?!” Twilight’s mind screamed. Spike’s new member was on display as it teasingly stood, just out of reach of her dripping folds. This wasn’t the cock Twilight had acquainted herself with the other day. Now it stood, complete with a set of bumps and ridges along its length, not to mention it had grown about a quarter of its length since then.

Spike could see her staring, leading him to ask, “Do you like it Twilight? I sure hope you do. Because it’s going to be spending most of its time inside you from now on.”

Twilight let out an audible gulp, no longer concerned with the meager thought being unable to walk easily for a few days, but rather now worried with the notion of losing the ability to think entirely. But her body was telling her to accept it. She felt tense, not from the prospect of being Spike’s sex toy, but from the tension resulting from months of unfulfilled sexual desire.

She no longer had the ability nor the will to resist. She let her body take the wheel, no matter how much her mind complained. She closed her eyes in submission as she began grinding her hips into the dragon’s groin.

Feeling the girl’s new movements, Spike chuckled to himself. “There’s a good, girl.”

Twilight continued to writhe on the bed as her new lover pinched one of her sensitive nipples, causing her to squirm uncontrollably. She mewed and moaned continuously as the energy in the room built to its peak.

Twilight suddenly felt something brush against the lips of her pussy, making her heart briefly flutter. She wished her merciless roommate would cease with the foreplay and fuck her brains out already. Anything to quench the fire that was radiating between her legs.

As if he could read her mind, she jumped as she suddenly felt something slip into her snatch. Twilight groaned lustfully as the member slowly traveled, plunging itself into her depths. She could feel each individual bump, even his heart beat, as his member slid against her velvety walls.

Twilight was experiencing an entirely different side of sex. A wave of emotions coursed through her slender body. Lust, pleasure, and euphoria were there in plenty, but she couldn’t ignore the feeling on control. She was at his mercy now, and he knew it. Spike was clearly more bestial and terrifying than ever, his eyes alight with wildness and savagery. He could tear her to pieces if he so wished. She resolved to really give as much as she had to state his urges, otherwise, she didn't know how he would react if she left him unsatisfied.

Spike had only inserted half his length into the quivering girl before he began to pull out, his cock head almost popping out of her folds. The sensitive nerve endings on his new member twitching, sending brand new sensations throughout his body. The fire that resided deep within his body was now ignited to its largest scale yet. With waiting another moment, his unoccupied hand gripped her leg, raising it so that it stood at a ninety degree against the rest of her body.

He had waited for this long enough. Spike pushed himself in, his cock fully entering Twilight’s tight slit. He clenched his teeth as he plunged back inside, her sex swallowing his cock while tightly clenching around it. Spike quickly found his pace and began thrusting with aggression.

Twilight began to scream in pleasure as he continued to thrust into her dripping entrance. A commotion so loud, the neighbors would surely have heard. Quickly, Spike moved to silence his partner. Grabbing hold of her chin, he pulled Twilight’s mouth to his, pressing his lips to hers in a passionate kiss. She moaned into his mouth in both surprise and protest, but soon relaxed into the kiss as she felt his forked tongue tangled with her own.

All the while Spike’s member continued to thrust into the girl at an increasing rate. His lengthy member had never felt so hard in his life, which only served to make it easier to pump it into his lifelong friend. Spike’s pace was so astonishingly fast that he could barely contain himself. Amidst Twilight’s moans and unbearable squeezing of her tight pussy around his cock, Spike was in heaven.

Twilight was fast approaching a strong orgasm. She felt his kneading and pinching on her bountiful chest, kisses along the nape her of neck, and the throbbing rock hard cock that felt right at home inside her, all of which worked in tandem on the girl as they brought her to an apex. A river of her juices flooded out of her pussy onto Spike’s pistoning cock. Spike felt another rush of warm juices bathe his member as her walls clenched around him, attempting to milk every drop of potent dragon cum his balls had to offer.

Spike felt his balls tingle as his impending release approached. With a few final thrust, he buried his cock as deep within the girl as he could before empting himself inside of her. His cock twitching wildly as it released a torrent of hot spunk into Twilight’s womb.

Twilight let loose a high pitched scream as she felt the searing hot cum pump into her, driving her body over the edge as mind numbing orgasm overtook her slender body. Her pussy clenching and unclenching around his member as a result, attempting to squeeze every drop of seed out of it.

Spike felt the writing girl’s womb overflow with his cum as it spilled out onto the bed, completely soaking the sheets with their combined love juices.

Twilight was busy giving a long series of deep gasps from her recent experience. “S-Spike, that was incredible!” As she felt his member slowly withdraw from her depths, her leg falling back into position.

She couldn’t help feel a tinge of regret for her previous apprehension to Spike’s advances. Those feeling were quickly replaced with excitement, as the nerdy girl shot up from her position on the bed.

“We have to try this again! Oooo…. I can still feel the warmth inside me. There’s even more cum this time than before! How long is your cock now? Oh Celestia, I hope it doesn’t get even longer than this! It might split me in two soon. I need to take measurements! Quick, where’s my pen and paper?!

As the ecstatic Twilight turned to Spike, she was meet with the sight of her roommate now on his back, snoring loudly.

“Spikkeeeeee!” Twilight pouted, giving a few weak shoves to her new lover’s arm. Spike didn’t budge. “Men…” she thought contemptuously.

Slowly Twilight’s mouth curved into a grin as she saw the dragon’s still slightly erect shaft pointed towards the ceiling, still lubricated with both of their respective juices.

“Well, I guess that’s enough fun for tonight…” she admitted with a yawn of her own. Climbing onto and lying on top of the dragon’s chest, Twilight made herself comfortable. She wrapped her legs around his waist and pushed his lonely cock inside herself once more. She didn’t thrust however, instead, she rested her head on his muscular chest letting the filling sensation take her away into a deep and lustful sleep.