Mmph…”
>Another weak thrust provided Thunderlane with a small modicum of satisfaction, the only form of relief he could find at this moment. He continued to weakly hump the large body pillow he had positioned himself atop, his eyes glazed over from the intense, hours long workout.
>He wasn’t exactly sure how long he had been desperately grinding against his pillow, but he knew it must’ve been a personal record.
>A few days ago, he had accidentally rubbed his indisposed member against the cushy surface, and it gave him more stimulation that he had felt in an entire week! Ever since then, he’d been humping his pillow daily. At first just for a few minutes, then thirty, then sixty, and now…
“Ah! A-ahn…”
>Biting the pillow beneath him, Thunderlane suppressed another weak moan.
>Once again, he regretted ever putting on the magical torture instrument his supposed “friend” had sent him in the mail.
>The infernal chastity cage secured around Thunderlane’s member had reduced one of Ponyville’s best flyers into a desperate, squirmy mess.
“Nngh~”
>The pegasus felt another string of precum leak out of his cage, adding to the stain he had been accumulating on his pillow case. Nonetheless, he continued mindlessly humping, the horny mess that was his brain unable to think of doing anything else.
>Thunderlane let his thoughts drift back to the circumstances that led him to this situation, cursing his own personal decisions and bad luck. He started off cursing the very beginning of his descent into sexual depravity.
>Several months back on a trip to Manehattan with his family, a chance encounter with an old friend from grade school started all of it off.
>Thunderlane had left his little brother, Rumble, in the care of their grandparents earlier that day, and had simply decided to take a stroll. While perusing the business district, a single, unmarked building had caught his eye. It was a plain brick structure with zero windows, from what Thunderlane could see, and a single, orange sign that said “Open” hanging about the nondescript door that served as the building’s entrance.
>In a move he now regretted, Thunderlane had decided to enter. The inside was just as impressive as the outside. Which is to say, not. White walls, a few potted ferns in the corners, and a single wooden desk with a colt sitting behind it, flipping through a magazine.
>He should’ve walked out after that. He shouldn’t have bothered that colt. But he did.
>Thunderlane recognized that coat color and that mane style from back in grade school. It was his old earth pony pal, Wood Chuck. Wood wasn’t exactly a genius in his classes, and probably couldn’t pass a spelling-bee to save his life, but boy was his craftsmanship superb. By age 10 he was already making tables and furniture for his teachers and classmates. Hell, Thunderlane still owned a chair Wood had made him several years earlier.
>Wood Chuck had remembered him just as well, it seemed, and the pair started chatting away about the good days. Back when spitting gum into a classmates hair was the height of comedy, and things like “money” weren’t that important.
>Things eventually turned to what the two had done with their lives, and Wood was extremely happy to hear that Thunderlane had been accepted into the Wonderbolts. He was oddly cagey about his own chosen profession, and it took several promises from Thunderlane before Wood caved and agreed to show the pegasus.
>Confused, but with his curiosity peaked, he followed the earth pony through the room’s only other door, which was positioned behind Wood’s desk. It was certainly not what the pegasus had expected.
>It seemed that Wood had come to work at some form of sex toy shop, and a pretty advanced one at that. Some serious equipment was strewn about, from stockades and pillories to gimp suits and other miscellaneous devices. The walls were black and purple with mood lighting illuminating the many lewd displays and posters depicting each product’s usage.
>Everypony knew places like these existed, but for the most part, it was kept on the down low. Some ponies didn’t want others to know they shopped here, and some just didn’t want to think about such lewd and unwholesome places existing. Still, it was undeniable that all major cities had them as ill-concealed secrets. A place to go to spice up your love life. But Thunderlane never expected that he himself would ever wind up in one.
>While partially disgusted, Thunderlane’s erect wings gave away his true feelings. The pegasus had always harbored a submissive side, and a desire to be… used, for lack of a better term. The colt found the thought of another pony being in complete control, sexually, gave the pegasus many a wet dream over the years, even though he’d never admit these feelings to anyone.
>Thankfully, or perhaps, unthankfully, Wood Chuck only had to take one look at Thunderlane lustfully gazing at the Pegasi-type gimp suit with padded wing restraints and built in vibrators to understand exactly what the pegasus was into.
>Despite his prying, Thunderlane was initially hesitant to talk to Wood about his desires and sexuality, before rightfully realizing that Wood must’ve harbored several deviant fetishes as well, otherwise he’d never work in an establishment such as this.
>Still, Thunderlane likely wouldn’t have been in his current predicament had Wood Chuck’s unicorn coltfriend not walked up to the group and rather aggressively began kissing Wood right in front of Thunderlane.
>The way Wood simply let the unicorn do as he pleased, yet with a look of love and trust shared between the two, convinced Thunderlane to admit to the pair that he had gay tendencies, much to the delight of his old friend.
>Wood’s coltfriend had whispered something into his ear, causing an embarrassed, yet devious smile to cross the earth pony’s face. Another quick chat later, and Thunderlane had learned that all of the toys here were created by the duo, and they jointly owned the sex shop. Wood Chuck made the furniture bits, the pillories, sex swings, anything that needed hard framework essentially. His unicorn friend, a colt by the name of Refined, created the smaller stuff, dildos, gags, blindfolds, the small works.
>Where the pegasus fit into the matter, is that they made sex toys for all three pony species with a guarantee of quality. This meant that they tested the products for comfort and its overall “pleasurability” before they started mass producing a new design of toy or device. As it just so happened, their usual pegasus test subject had to move away, and Wood subtly mentioned that they were in the market for a new test subject.
>Refined was far more to the point, asking a confused, yet aroused, Thunderlane to test out their new milking machine. The pegasus attempted to stammer out an excuse, saying he had to be somewhere, and do something, with this one pony, you know and stuff….
>But refined was rather persistent. It didn’t help that Wood was egging him on from the sidelines, giving Thunderlane puppy dog eyes. The semi-large bag of bits Wood offered Thunderlane wasn’t helping either.
>Refined mentioned he’d only have to stay for an hour to test out all its features, reigniting many a fantasy Thunderlane had only dreamed about. The blushing pegasus agreed, and his fate was sealed. Much like how his throbbing member was sealed inside the vacuum tube, which had a tube attached at the end for fluids to travel through.
>Thunderlane could only squirm as he saw the poster for the device depicting the tube attached to a gag with led into a restrained pegasi’s mouth. He was only slightly disappointed when they simply decided to drop the end of the tube into a bucket, instead of putting it into a gag for Thunderlane to wear.
>Any part of Thunderlane’s mind that believed he held a dominant side washed away when the plastic tube slowly vibrated, sucked, and milked the best orgasm of Thunderlane’s entire life out of him.
>Thunderlane left that shop with a big smile, a bag of 50 bits, and a paper envelope with a contract to continue testing products for the pair. They’d send out a new design of a toy or device to Thunderlane via the mail, he’d use it, and send a report back on how it was, or any defects he’d notice. He even got to keep the toys~
>Separately, he kept up a lively correspondence with his old pal Wood, and Thunderlane picked up on many a fetish and dirty thought from Wood’s many descriptions of what Refined did to the submissive earth colt. It didn’t help that he apparently liked some minor exhibitionism, and occasionally sent Thunderlane revealing photographs, always with a smug Refined, holding Wood close.
>The earth pony gushed in almost every single letter he sent about how much he loved “his unicorn”. According to Wood, the dominant unicorn was his most loving and affectionate partner he’d ever had. The earth colt would frequently describe the many dates Refined would take him on, going out for nights of fun at bars, carnivals, and restaurants, before returning home and having more “adult” types of fun.
>Recently, Refined had apparently taken to wearing a necklace with the words “Owned by Wood Chuck” engraved on the backside, much to Wood’s own enthusiasm. Thunderlane wasn’t surprised when Wood himself sported a similar necklace that said “Owned by Refined”. Although Wood’s necklace wasn’t actually a necklace, it was a collar.
>With each letter sent, Thunderlane’s desire to be sexually dominated by a loving partner grew. He envied the relationship the pair held, and desired one for himself. Not to mention, his desire for more and more deviant fetishes grew. His passing interest in bondage grew into something much larger, starting from simply testing hoof cuffs for strength and comfort, all the way to wearing different forms of gags overnight with his wings bound, while wearing the cuffs. To test for comfort, of course. Eventually, Thunderlane ended up purchasing several devices from the shop, that he hadn’t received in the mail, or been permitted to keep.
>Four weeks ago, Thunderlane had received another package with a toy to test out, this time an odd, small metal device. It appeared to be made out of only three parts, a ring with a single prong jutting out from the top, a padlock and a small metal tube that appeared to slide over the prong attached to the ring, and the padlock was attached to prevent the two pieces from separating.
>The ring was to be slipped on over the balls, and then the tube slid over the penis itself. After that, it was to be locked, preventing one access to their own cock.
>Thunderlane blushed as he read of the device’s intended purposes, yet secretly loved the concept. Whoever held the key to the padlock, was in complete control over whoever was wearing the “chastity cage”. The pegasus eagerly put it on and wore a pair of pants to cover his lewd accessory as he went about his day.
>While embarrassing, the thought that someone might find out gave Thunderlane many an erection, all of which were contained by the metal device, which was both a torturous and a wonderful feeling. Its fatal flaw however, is whenever Thunderlane lost his erection and became flaccid, the cage easily slipped off his shaft, which would force Thunderlane to either poke and prod his member back inside, or unlock it to reposition his dick.
>All in all, while he liked the concept of the cage, he found it impractical. He shipped it back with a particularly low rating, describing the many problems he had with the device. In his separate correspondence with Wood Chuck, he passingly mentioned how he had high hopes for the device, and was saddened by its failure.
>The very next letter he received from Wood contained a package with an even smaller chastity cage, the words “Enjoy~” written on a note stuck to it. Upon reading, Thunderlane discovered that this was a special device, magically enchanted by Refined himself. One of its two features was that the cage would prevent its wearer from ever going completely flaccid, preventing one’s ability to simply slide out of the cage upon losing their erection. Its second feature, was its pink, heart shaped padlock. The padlock had been magically strengthened, and no amount of blunt force would ever snap it off. Additionally, its lock had been enchanted to be unpick-able by anypony except skilled unicorn locksmith, unless they had its key.
>Teasingly, the note also described another feature that could be added at a later date, the capability to make a magic, keyless version. One pony would volunteer to be magically enchanted, their body that is, and the enchanted pony would be the only one capable of unlocking the device. 
>Thunderlane’s member throbbed at the idea of being unable to unlock himself, leaving the fate of his next orgasm completely up to his dominant partner.
>Eager to try the device on, he had stepped into a cold shower after being unable to calm down from his fantasies, and quickly locked the device in place.
>It gave off a faint, blue glow before vibrating ever so slightly, quickly giving the pegasus an erection. The device seemingly hugged tight against his body, rather than feeling like a lump of metal that was hanging off of his balls. In short, it was amazing. He bit his lip as his erection attempted to grow larger, but the short size of the cage prevented it from doing so.
>As he stepped out of the shower, Thunderlane knew he’d be sleeping in the device overnight to “test” it. He was already planning his attire. He’d wear his favorite pink ballgag, to make sure he didn’t let out any lewd moans at night, those striped socks he’d received a few weeks back, also pink, and maybe his blindfold as well. To make sure the sun didn’t get in the eyes in the morning. That was pink too~
>The pegasus felt his erection begin to die down as he dried himself off, his mind too focused on the task at hoof to be aroused. His wings shot up in the air and he quickly closed his hind legs as he felt a feather of some sort materialize inside the chastity device, gently tickling the head of his caged member until his erection returned.
>The poor colt had to walk back to his room with a towel over his back to hide his raging wingboner. >Best.>Toy.>EVER.
>Or so he thought…
“Ah-ahn~”
>Another squirt of pre oozed out from the cage.
>Everything went perfectly fine for the first two weeks. He stayed caged for the first two days, relishing in each new sensation that kept his erection going strong, before unlocking himself and using the very same milker he had tested on the first day to bring himself to orgasm. He even used the attached muzzle gag to make sure there was no mess to clean up, another fetish he had acquired.
>Next, he went an entire five days in the cage before relenting to his desires and using a new stroker that had been sent in the mail to relieve himself with.
>Thunderlane wasn’t sure how long he planned to stay locked for the third time he slipped the device on, but it most certainly was not supposed to be this long. Since the new device could only be removed with the key, Thunderlane had begun wearing it around his neck attached to a keychain, in case of an emergency. It wasn’t that unusual, many ponies kept their house keys there for safekeeping.
>Everything was going fine until the fourth day. Thunderlane had just left his house for an early morning jog, one of the many things the pegasus had taken to doing in order to distract himself from his arousal.
>At some point during the jog, the pants Thunderlane was wearing snagged upon something, a branch perhaps, and they tore open. He felt a breeze drift over his caged balls, giving him a very arousing, and very frightening situation. The pegasus rushed back home, thankfully unseen, whereupon he trotted to his room and locked the door, throwing himself on his bed in exhaustion. Running while terrified takes a lot out of a colt!
>He laughed a bit at the absurdity of the situation, even as the cage’s insides began to move in a way not unlike his milker, keeping Thunderlane’s erection steady. Pushing himself up upon his bed, the colt reached for the key around his neck, only to be unable to find it.
>A panic filled search of the room later, and his heart sank at the realization that it must’ve fallen off during his panicked rush home.
>Thunderlane hastily threw on another pair of pants, and flew back out to find it.
>It took a few hours of searching and digging before he resorted to asking some of his neighbors, before he learned of the key’s likely fate.
>Ponyville’s newest member, a “human” by the name of Anonymous had found a key earlier in the day, and had been asking random ponies if it was theirs.
>Of all the creatures in Ponyville, Anonymous had to be the one to find it. Thunderlane had developed a major crush on the unusual being after seeing him and his tall physic, not to mention the nice suits he always seemed to wear. Thunderlane liked sharply dressed men.
>The fact that he wasn’t a pony would normally be a deterrent, but it endeared Thunderlane to the creature just a bit more. The taboo of it all, being attracted to a creature not even of the same species…
>Hell, possibly not even of this planet!
>In any case, it just excited Thunderlane more.
>What didn’t particularly excite Thunderlane, was asking Anon for the key back. The pegasus began to approach him the first day he misplaced it, intent on just asking for it back. But some two-bit thief beat him to the punch! He was almost glad they did…
>Thunderlane watched as some mare he’d never seen before ask for the key, no doubt hoping to try it out on a bunch of the houses in town in an attempt to easily burglarize it.
>Thankfully, and at the same time, unthankfully, Anon requested to accompany them to their house, so the mare could prove to him the key was theirs, and that they weren’t just trying to take it for their own use. The mare babbled out a few excuses, and trotted away.
>That was two weeks ago.
>Thunderlane couldn’t ask for the key, Anon wanted proof it was his. He couldn’t admit what it was for, much less show him!
>Although, he was getting pretty desperate. The pegasus had decided that enough was enough, and he’d just go up to anon and see what happened. He couldn’t stand one more night of being caged in this thing, unable to cum. He’d settle for just being able to touch himself at this point, no cumming required!
“F-fuuuckk~”
>The colt gave one last powerful thrust, unable to continue weakly humping any longer. He rolled off the pillow and onto his back with his legs splayed out to the side, mouth open and panting, cage exposed and dripping.
>He whimpered as the cage gave a small electric shock to his member, keeping his erection steady. He didn’t care if Anon saw anymore. He just had to get out.