Dinky Doo's Big Adventure

Dinky had been sleeping an awful lot lately. It probably wasn’t very healthy, to be honest. There were extenuating circumstances, to be sure, but that didn’t change how utterly fucked her circadian rhythm was going to be once this was all over and done with. It also probably didn’t help that a lot of it was less “sleeping” and more “briefly losing consciousness due to extreme sexual exertion.” Passing out three times in as many days couldn’t possibly be good for a pony’s long-term health. At least this time she’d managed to actually go to fucking sleep on her own terms in her own goddamn bed for fucking once. Even if the sheets were still in the process of being washed after her encounter with Twist, she at least got to sleep on her mattress in her room.

That was another blessing. Diamond Tiara, as far as Dinky could tell, had been more than happy enough to leave her alone after realizing she could engage in a growth feedback loop with her weird harem thing. Thank Celestia she’d managed to get out at only thirty inches – she shuddered as she remembered what had become of Tiara. Obviously she didn’t have exact measurements, but that it was bigger than Tiara was tall while soft was somewhat telling of just how much fucking Tiara had done while she slept. And at least she only had the one cock, instead of Silver’s two. She couldn’t really deny that it was kinda hot, on somepony else, but she couldn’t imagine how they’d be able to function on a day-to-day basis with cocks that huge – that, from what she knew of Tiara, were only gonna get bigger.

Small blessings. Focusing on them certainly helped her to ignore the fact that her irregular sleep patterns had left her feeling groggy and miserable. Like somepony had been sitting on her face all night.

It took her a moment to fight through the just-woke-up haze and realize that actually no, somepony was literally sitting on her face. “Oh my god,” she groaned, her words muffled by the face full of ass she was getting. Whoever it was, they weren’t exactly light. “Please get off,” she followed with some effort, her words swallowed almost completely by fat orange butt. She had to resort to giving it a good, solid smack. Initially it seemed to have backfired, drawing a moan of pleasure from whoever it was, but thankfully they followed that up by gently removing themselves.

“Uh, sorry about that. Ti- uh, Mistress Tiara said I had to do that.”

“Oh my god.”

“She also said you’d probably react that way and I don’t, uh, really blame you?”

“Snails please go home.”

Snails shrugged. “Believe me, I would love to, but Tiara would know. She always knows.”

“Oh my god.” Dinky had already said that exact thing not a minute ago, but it remained relevant to the situation. “Okay, hold on, I just woke up, I haven’t eaten or had any coffee yet. I’ve got no idea what the fuck is going on or why you’re here and I’m too tired to even care.”

“Sorry,” Snails muttered, fidgeting nervously and pointedly avoiding eye-contact. “Uh, Tia- uh, Mistress Tiara didn’t say we had to get started right away. I can go make coffee if you’d like?”

“Not dressed like that you’re not.” Though dressed was generous terminology. The only clothing he had on was women’s underwear – a translucent pink camisole and frilly pink panties that dug deeply into his soft, feminine hips. He even had some light makeup on. Bright red lipstick that accentuated the fullness of his lips, mascara to make his eyelashes fuller and longer, and a pale lavender eyeshadow. If it weren’t for the sizable bulge in his panties, he’d almost be able to pass for a girl. The sizable bulge that, Dinky noted with mild annoyance, was put to shame by her own member. “I, uh, wasn’t aware you were into that.”

Snails blushed. “It, um, it makes me feel pretty,” he mumbled awkwardly. “I’ve got real clothes, I can put ‘em on long enough to go make you coffee.”

Dinky couldn’t help but bite her lip. She was still staunchly refusing to let her new addition and the accompanying heightened libido get the better of her. But damned if Snails wasn’t cute right now. It was a surreal thought to have – normally Snips and Snails were pretty much the antithesis of cute. But he pulled off the look well. Very well. Her cock throbbed slightly, and she shook her head slightly. “No, uh, that’s fine. Let’s just get whatever this is over with so you can go home.”

“Oh, okay!” Snails’s expression immediately brightened in an unbearably cute way. “Mistress Tiara says that she owes you an apology for, um, raping you? She wouldn’t tell me the details, what’s up with that?”

“Ugh. It’s, uh, a long story.”

“I figured. Did you see her? Her pants looked like she’d stuffed Scootaloo in them.”

“I’ve seen her without them on.”

Snails’s eyes widened slightly. “Okay, I think I’m beginning to see why you were uncomfortable with sharing details.” As though the fact that Tiara claimed to have raped her wasn’t enough. Still, she couldn’t bring herself to be too mad at Snails. His innocent expression of dawning realization was just as adorable as every other facial expression he’d made so far. “Uh, anyway, she said she wanted to make it up to you.”

“So she sent a member of her weird harem thing?”

“Oh, no.” Snails raised his hands defensively. “I think that’s just her, Silver, and Twist.” He placed his hands together, gently tapping his index fingers together nervously. “She just, um, knows things. Things I’d rather be kept private, if you know what I mean.”

“Fair enough.” Dinky shrugged.

“Anyway, I’m not supposed to leave until you’ve, um. Made use of me. Sorry.”

“It’s not your fault, Snails,” Dinky replied with a sigh. “Look, uh, it’s not you that I have issue with, it’s just, uh. I kinda don’t wanna get any bigger than I am.” She gestured at her cock. “I mean, I’m almost three feet at this point, I’d rather still be able to get around like a normal pony.”

“Okay,” Snails replied with an understanding nod. “I can understand that, it looks cumbersome. Does it even ever go down?”

“Not so far.”

Snails visibly winced slightly. He was the first to show genuine empathy with how inconvenient this was for her. Dinky felt slightly better about the situation because of it. “And, uh, sex makes it bigger?”

“If I cum, it grows. Also if I cum inside of a girl’s pussy or ass then they grow one. Or at least Tiara cumming in Twist’s ass made her grow one, I dunno if it works for me and honestly I’m not all that invested in finding out.”

“Well, okay. We can probably get away with just, um. Just getting me off, then. I can do that real quick in the corner and get out of your hair.” He blushed again, fidgeting slightly. “Uh, sorry for sitting on your face, by the way. Tiara kinda implied you wouldn’t object.”

“Oh, it’s fine,” Dinky almost said, but immediately thought better of it. That was her libido speaking, not her. She did object, really. Not to the face-sitting in abstract, but to being surprised by it. That wasn’t really Snails’s fault, though, and she didn’t want him thinking otherwise. But dammit she was trying to avoid letting her libido get away with her. Even if Snails was being unbearably cute, she couldn’t let herself get carried away again.

Still, didn’t mean she couldn’t enjoy the view. Snails had a really nice butt, which wiggled deliciously as he turned and walked into a corner. It bounced slightly with every step he took, the undersized panties barely able to contain a fraction of its mass. She just wanted to give it a good squeeze, or maybe even more.

“Hold on.” Dinky was barely aware she was speaking before the words came out of her mouth. “Why don’t you sit on the bed instead, it’s prolly more comfortable.” Dimly, she was aware that her libido was talking for her, but she didn’t really find herself objecting any more. Certainly, her rational mind interjected, it’d be very rude to force Snails to sit on the floor and masturbate.

“Oh. Yeah, okay. Thanks!” Snails turned around, giving Dinky another look at his package even as she got up from her bed.

“I can sit in my office chair, you can sit on the bed, rub one out real quick, maybe like rub some of my pre on your face or something to make Tiara think we fucked?”

“Sounds like a plan! Maybe you can, um, put on some clothing in the meantime?”

Dinky hadn’t even noticed she wasn’t wearing anything. She didn’t particularly mind, either, which would have been odd in any other situation, but in a broader context she honestly had bigger worries. “Eh, it’ll be fine. I doubt anything’ll fit and it’s not like you’ve not already seen everything I’ve got to offer.” That was also her libido speaking, but it was too late for her to turn back now. Her cock had taken the wheel – she was just along for the ride. So long as it was just content to ogle Snails, she was okay.

“Oh. Um, that’s fine too.” Snails shrugged. “I mean, I was kinda prepared for you to ravage my butt when I came here. I’m okay with whatever you’re comfortable with.”

“I’m comfortable with that ravage your butt thing,” Dinky managed to force herself not to say. “I’m okay with ogling you for now~” was what she did end up saying. It was more flirty than she was really comfortable with, but at this point she’d take not offering to fuck his ass over anything else.

“Well, then I’m okay with being ogled~” Snails replied. “Heck, if anything, I wouldn’t object to you getting more hands on. You’re, uh,” Snails paused to blush furiously. “You’re really attractive. If you don’t mind me saying so.”

Dinky took a deep breath. She wouldn’t mind getting more hands on, either, but things were hands on enough as it was. “Thanks,” she muttered. She hadn’t ever really considered that other ponies might find her attractive. And yet, in the past three days she’d received concrete evidence that it was very much the case from numerous sources. Some were more reliable than others – Tiara and Silver at least had very clearly been mostly interested in her cock. Twist, likewise, would probably have slept with her regardless of how attractive she was. But then there was Noi, who had outright stated she’d wanted to have sex with her for years. Years! There was no way Dinky could rationalize that statement as being the result of her new addition.

And here was Snails, about to masturbate to her. Somehow, Dinky got the impression that her little friend had nothing to do with that either. That Snails would have happily jerked it to her even before it had happened. That, perhaps, he had jerked it to her before it happened. That he wasn’t the only pony who had. “I’m not the only pony who thinks so, if it helps. You’re really popular with the boys. And a lot of the girls also,” Snails interjected, all but confirming that line of thought as accurate.

“Oh, um. Okay.” It was Dinky’s turn to blush.

“Oh, sorry, I didn’t mean to be all weird about it! I can stop if it’s making you uncomfortable”

“Oh! No, no don’t stop!” Dinky’s voice was tinged with a desperation that caught her off guard. Being told that she was attractive felt good. Really good. Her face was suddenly flushed with arousal, and her breathing had become erratic even as she found her hands wandering to her cock. “Keep going. Please.”

“Uh, are you okay?” Dinky nodded furiously, and so Snails continued on. “Like, you’ve... kind of always been one of the prettiest girls in school. I used to have a crush on you, actually. Would you believe I used to ma, uh. You know. To you?”

The confirmation was like a jolt of electricity down Dinky’s spine. “Really?” she managed to force out, her voice quiet and strained.

“Yeah,” Snails replied quietly. It was his turn to blush furiously, and he once again looked away from her nervously. He was so fucking cute when he was nervous. “Like a lot. Um, I’ve mostly stopped because it’s kinda creepy, but... I’ve ruined a lotta socks thinking about you. Was that a creepy way to say that? If it helps they were old and had big holes in them anyway.” Even as he spoke, he slowly pulled his panties down to unleash his sock ruiner. It was, unsurprisingly, put to shame by Dinky’s member, but would probably have been bigger than hers before Tiara and friends had had their collective way with her. Its pale amber length was about a foot and a half long, large enough that it smacked him in the dead centre of his chest when he freed it from his panties. Everything else about him was so unrelentingly feminine, from his plump and pouty lips to his childbearing hips and big slutty ass. But then there was this gigantic bitch-breaker between his legs.

Dinky had never really thought of Snails in any kind of sexual context until this moment. But now that she had seen him in this light she couldn’t imagine him as anything else. The cute, innocent girl next door with an ass that wouldn’t quit and a cock the size of his forearm. Sitting on her bed in slutty underwear, literally asking her to use and abuse him as she saw fit. Her cock twitched, giving her a good smack in the face that was enough to dispel her remaining hesitation.

She wanted him. Desperately.

“Stop,” her libido said as it lifted her out of her seat and dragged her towards her bed.

“Huh? Okay.” Snails reluctantly removed his soft hands from his drooling cock.

“I think I’ve changed my mind about the level of involvement I wanna have.” Dinky’s libido grinned eagerly as she gave Snails a gentle shove that was enough to knock him over onto his back. “I figure that if cummin’ with my cock makes me bigger, cummin’ with my cunt won’t do anything. What do you say, wanna live out your fantasy of getting your face sat on by your childhood crush?”

“I dunno,” Snails muttered hesitantly. “Are you sure you actually want this? You’re acting kinda weird all of a sudden.”

Dinky paused, briefly shoving her libido out of the driver’s seat. She didn’t really want this, did she? Honestly, she wasn’t even sure anymore. Thinking back on it, the whole reason this had happened was because she’d done a piss-poor job of denying her attraction to Noi, and. Well. Look where that had gotten her. “I... Fuck. I have no idea anymore,” she finally managed to say, turning slightly to sit on the bed beside Snails. “I’m pretty sure I don’t want this, at least,” she added, gesturing at her cock. “But everything else... Fuck.”

“Wanna talk about it?”

Dinky sighed. “It couldn’t hurt, I guess, but I don’t know what it even is.” She threw her hands in the air in exasperation, flopping backwards onto her bed. The movement of her body caused her still very erect monster of a penis to sway slightly like a tree in a gentle breeze. “Like, I sort of know how it works at this point but I still don’t really know why. That’s the most frustrating thing. It’s like, one moment I’m living my life and the next I’ve got a gigantic penis out of nowhere.”

“I can see how that’d get in the way of your normal routine.”

“And like the worst thing is that it feels really good. I can’t even really properly hate the stupid fucking thing for completely fucking up my life because I’m too fucking horny all the time to think straight!” Dinky flailed slightly, the slightest movement of her body enough to send the pillar of flesh jutting from her cock swaying rhythmically back and forth. She groaned, partly out of frustration and partly from the fresh spikes of stimulation her cock’s motions sent through her body. “At this point I wouldn’t even mind that much if it would at least go away when I don’t want it!”

“Well, when do you want it?”

“I don’t know! Whenever I wanna fuck, I guess. But I don’t even know when that is because the stupid thing makes me horny all the time!”

“Hm,” Snails mumbled thoughtfully. “Hey, this might be a dumb question, but have you tried, you know, taking care of yourself?”

“Sort of, but I got interrupted by Tiara, and then I got trapped in an orgy and then I went to bed and then now.”

“Well then maybe that’ll help? Like, if everything you’ve tried with a partner has made it worse, maybe just doing it yourself will let you properly blow off some steam.” He shrugged slightly. “I dunno, it prolly won’t work, but it’s better than nothing.”

Dinky sighed. “I might as well try it. We’re gonna hafta convince Tiara we fucked anyway or we’ll never hear the end of it. Actually cumming’ll probably make that easier to do.” She pushed herself back into a sitting position. “You wanna go first? Or should I?”

“We’re both gonna hafta go eventually, might as well deal with it at the same time.”

“Right,” Dinky muttered in reply as her eyes darted to look at Snails’s cock of their own accord. “Just, uh, gimme a minute to get back in the mindset.” She had managed to, if not calm down, then at least push her libido out of the front seat. She was fairly certain she could jack off on her own, but she was also fairly certain that her libido would end up taking charge again anyway, so she might as well let it take the steering wheel from the beginning. She closed her eyes, took a deep breath, and let it happen.

It was her libido that opened her eyes. Dinky felt a strange sort of dissonance, like she was merely a passenger in her own body but at the same time was completely in control of herself. She was moving on autopilot, and autopilot was staring intently at the flared cockhead in the dead centre of her field of vision. The fact that it had grown to the point of being eye-level hadn’t really registered until now, but there it was, drooling enticingly. She reached out and grasped it near the medial ring – it was thick enough that she had to use both hands in order to get a good enough grip on the thing to begin pumping. Up and down, slowly and languidly for now so that she could enjoy the sensation of it throbbing and pulsing against her firm grip, hot and musky pre drooling down its length and over her fingers. Idly, she pulled the shaft closer and gave it a gentle kiss, followed by a tentative lick.

Her precum was hot, musky and salty and spicy and bitter and she wanted more. She leaned in for another lick, no longer tentative but eager, her tongue dancing along the length and around the head even as her hands continued to pump. God, it tasted so good. The dregs that she was managing to catch with her tongue weren’t nearly enough. Still acting purely on instinct, she opened her mouth as wide as she was capable of and darted forward, taking her entire flare into her mouth. Somewhat obviously, she’d never even considered the possibility of sucking herself off in the past. Obviously, considering her cock was a recent development, but beyond that she hadn’t entertained the thought of it being a thing anyone might do, ever. And she’d definitely not considered the possibility after sprouting her little new addition. She hadn’t really considered much of anything, of course. She had mostly been focused on avoiding sex acts, understandably.

But if she had to get off, it might as well be enjoyable. And this was very enjoyable. Her cock throbbed in her grip and drooled copious amounts of precum down her hungry throat. It dawned on her that she hadn’t actually really eaten anything since the incident, and idly wondered where all of this stuff was even coming from while she sucked her cock. She moved up and down its length as much as was possible given its extreme size and her own relative lack of flexibility, and made up for the difference with her hands, pumping the thick cockflesh up and down. It wasn’t perfect, but it was clearly more than enough. She could feel the distressingly familiar feeling of a brewing orgasm in the pit of her stomach. Her balls clenched, her hips thrust, her horn unleashed several small showers of golden sparks, and finally pattern recognition set in.

Dinky abruptly pulled back, her flared head exiting her mouth with a loud, wet pop. “Fuck, that’s not gonna work,” she grunted.

“It’s not?” Snails sounded almost disappointed. She hadn’t exactly been paying him any mind, and even now she was more focused on the situation at hand than she was her erstwhile companion. She idly noted that he’d been playing with himself while she’d been occupied, but didn’t have the time to consider further. More sparks leaped from her horn, and several large arcs of precum erupted from her cock as she found herself passing the point of no return, barrelling her way along the express line to cumville.

“Oh, fuck, it’s not stopping,” she groaned, finding herself not entirely minding. On an intellectual level it was intensely irritating, of course, that she was going to get bigger again. But on another, deeper level, she felt oddly at peace. She felt like she was getting closer and closer to figuring this whole thing out. What was really happening, and maybe how to fix it.

Of course, unsurprisingly she found that train of thought derailed right as she was getting close to a breakthrough. “Hold on, Snips taught me this trick a while back!”

“What are you- gah!” Snails’s horn erupted with its own aura of bright green that matched his hair and eyes, and suddenly Dinky felt her building orgasm just stop. “What are you doing?” she forced out. She could still feel it there, lurking dangerously, like it had somehow been frozen in time right before it could properly go off.

“I’m sort of holding it in. It won’t last forever but it should last long enough for me to just...” He yanked his panties the remainder of the way off and tossed them aside, rushing forward towards Dinky.

It took her a moment to realize what he was planning, and by then it was far too late. “Snails wait no that’s not gonna-”

She was cut off by Snails slamming his huge ass down right on her cock. She entered him in one fluid motion, which was honestly quite impressive. Probably the result of some form of enchantment on his underwear or a piercing she’d overlooked. He was tight, unbelievably so. Like nothing she’d ever felt before. Sex with Tiara and Silver paled in comparison to anal with Snails. Her conscious mind was washed away by a flood of lust and need, and once again her libido took over. She firmly grabbed his wide, feminine hips and fucked. The amber sparks from her horn became jets of magical energy and flashes of light, like nothing she’d seen before. “Coooooock,” she groaned as the two of them flopped forward, Snails winding up on all fours on the ground being absolutely railed from behind by the larger mare.

“Gnhaaaa, you’re good at that,” Snails forced out through gritted teeth, his horn still surrounded by emerald light, though the glow of magic was flickering and fluttering as his concentration began to fail him. “Hold on let me just let up on the block a bit, we can see if taking it slow helps any-”

“CooOOOOOCK!” Dinky roared. There was a flash of golden light that filled the entire room, and a loud snap as the sheer force of her orgasm broke through Snails’s spell. Her cock unleashed enough cum to make her previous climaxes look like fucking nothing in comparison. Snails gagged, coughing up gobs of the stuff, and still his body inflated as more got pumped in. His own cock erupted, spraying the floor of Dinky’s room with a good few spurts that paled in comparison to her inhuman output.

And, of course, she grew. It somehow felt different than the last times. More. She wasn’t sure why, and she didn’t really care because frankly this whole thing hadn’t followed consistent rules since the beginning, seeming to change how it worked every time she thought she’d figured it out, and frankly it was no longer worth the bother trying to work them out. All she knew was that she was getting bigger, again, and moreso than before. The usual five inches came and then went as she lurched bigger in time with the flashing of her horn.

Her conscious mind managed to wrest control back from her libido in a blind panic – sure, Snails was obviously unusually stretchy, but she didn’t know for sure how much he could take and didn’t want to risk hurting him. She firmly grabbed his ass and pushed him off her fourty five inches and growing. She flopped backwards onto her own ass, still cumming and still growing, while Snails rolled forward on his gravid belly, groaning and cumming in a way that was unsurprisingly reminiscent of what had happened after she’d cum inside Tiara for the first time.

He moaned and groaned and burped as his belly slowly deflated, the mass seeming to migrate to other parts of his body. His already pillowy ass gained an extra layer of padding, and his hips widened, but the real change was up top. His camisole strained as it found itself slowly filled with orange titflesh. “ohfuck,” he hissed as he grabbed a swelling orb, already past budding and into large and still growing, while his free hand wandered its way down, below his cock and behind his balls, to slip several fingers into his brand new cunt because of course he’d gotten a cunt that just made sense.

Dinky felt herself slowly coming back into lucidity. Her head hurt, a dull, throbbing pressure in her sinuses as her cock unleashed the last few gallons of seed. “What the fu- you know what? Never mind. I don’t wanna know what the fuck.” She stared in dull horror at the behemoth that was attached to her waist. It was, she supposed, probably still smaller than Tiara’s, but not by very much. Likely just a bit over four feet, which meant it had grown about four times as much as it normally did. “God dammit, I can’t even get mad anymore,” she managed to say, shoving her chair out of the way so she could lie down in exhaustion. “How’re you holding up, Snails?”

“Mnf,” he responded sheepishly. “That, uh. That felt really good.”

“Sorry about the, uh, you know.”

“No, it’s fine. I’m going to hafta get all my clothes re-tailored, which is expensive, but at least I’ve kinda got no more excuse not to wear cute outfits in public?”

Dinky shoved the beast out of the way and lazily lifted her head to look at Snails. “I hope you’ve got some concealer panties.”

“I’ve got, uh, an extensive collection,” he replied, blushing.

“... Do you want me to start calling you she?”

“Oh! No, no, it’s fine, I’m not.. you know. It’s just...” He blushed furiously, looking away from Dinky. “It makes me feel pretty.”

“Fair enough,” Dinky replied, happy to drop the subject. “Do you think this is gonna be enough for Tiara?”

“Prolly. I’d, um, kind of like to go again, but I don’t think that’s the best idea.”

“No. No it isn’t.” She sighed. “For what it’s worth, you make a cute girl and if it were any other situation I’d be okay with a little experimentation. I guess.”

“Really?”

“Yeah. Just, uh. Not now.” Dinky should, she supposed, ask if Snails was going to be able to make it home. His new figure likely left him somewhat unable to wear his street clothing, and getting home looking like he did now would be... problematic. “Hey, uh, are you-”

Once again, following a frustrating trend, Dinky found herself interrupted by the door to her room swinging open. “Hey, Dinks! Sorry I’ve not been around, it’s just-”

Noi’s sentence dried up in her throat as she stared in quiet awe at the spectacle before her. “Wow. Okay. I’m gonna need some context, stat.”