Dinky Doo was the result of a teen pregnancy. It was a late teen pregnancy and it hadn't interfered with her mother's schooling, but the knowledge of her origins had left her cautious, and maybe a bit neurotic. Or, as Carrot Top liked to put it, uptight. “Just don't go bareback when you fuck. Have a bunch of sizes on you just in case, and worse comes to worst, there's always blowjobs.” Dinky took Carrot Top's advice to heart, in a sense – she always made sure to have condoms readily available, though she never intended to use them. She was perfectly happy not having sex until her life was somewhat sorted out, or at least that's what she told herself. That didn't stop ponies from assuming that she and Rumble were dating, though.

“It's insulting! I mean, what, I can't be friends with a colt without being his marefriend?”

Noi shrugged. “Don't look at me, I kinda always assumed he was gay.”

“I'm pretty sure he is, but that's not the point!”

“Why are you even talking to me about this.”

“Because shut up and let me complain at you.”

Noi raised an eyebrow and took a sip of her hay shake. “Look, it's high school, and you're popular. Just be glad the rumours are about you fucking a cute guy and not about you fucking teachers for better grades or something.”

Dinky slumped forward onto the table sulkily. “Guh. At least there's less than a year of this petty nonsense left.”

“Yep.” Noi gestured with a hay fry. “Then it's college and y'all gotta deal with four years of slightly different petty nonsense.”

“Please don't joke about that.”

“Ain't jokin'. Petty bullshit's pretty much a constant theme of schooling. Remember elementary school when I looked at Snails once and everyone decided we both have cooties even though I'm the faggiest fag to ever eat a pussy?”

“Noi, come on, we're in a family restaurant. Don't get us kicked out again.”

Noi shrugged. “I'm gay so it's okay if I call myself a fag. You gonna eat that?”

Dinky half-heartedly looked up at her... whatever relation Noi was to her. Noi was Carrot Top's younger sister and Carrot Top was Dinky's mom's significant other. According to Noi, this made her Dinky's aunt, purely because she knew it annoyed Dinky. Regardless, they weren't related by blood, which Dinky was secretly grateful for. Noi's figure was nowhere near as generous as her sister's, but it was still above average. Her breasts were sizable – but still in the common alphabetical range – tapering to a trim waist before flaring out into a respectable ass. As far as Dinky was concerned, Noi was just fine as she was, though she could understand why she'd feel jealous of her older sister. Anyone with that as an older sibling would feel inferior. Which, Dinky supposed, explained the piercings. Multiple studs in both ears, her nose, her eyebrow, and her lower lip, and that was just what was visible without removing clothing. Dinky idly recalled the time Noi bragged about having gotten her clit pierced, which led to her imagining what that might be like.

Dinky buried her face further into her arms in an attempt to hide her blush. “Yeah, just gimme a minute.”

“You need to lighten up, Dinky,” Noi said, her words muffled by the food she hadn't bothered to finish chewing before speaking. “Like, you're always hung up on how your mom got preggers with you in high school but, like, it's not like it ruined her life or anything. She's got a good career and shit, so I don't see why you're so fuckin' hung up on it.”

“Please don't psychoanalyze me. It's really weird.”

“Ain't psychoanalyzing, hon, 's just that I've known you for years. I know how your weird little brain works inside and out.”

Dinky rolled her eyes, still cradling her head in the crook of her arms. “Yeah, well, I know your brain enough to know when you're talking out of your ass.”

“You sure you're gonna eat that? 'cause, like, I'm already done my fries 'n shit, and it'd be a waste to-”

“Yes I am going to eat my fries.”

“Okay, okay, sheesh, no need to bite my fuckin' head off. Just kinda wanna get goin'. 'Cause I've kinda finished my food and these booths aren't very comfortable for long periods 'n shit.” Noi punctuated this by locking her fingers together and flipping her hands away from her body before lifting her arms above her head and stretching, which had the side effect of violently thrusting her chest out. The action drew Dinky's attention to what Noi was wearing, or rather what she wasn't wearing – she didn't have a goddamn bra on, again, as was made obvious by that eight year old white tank top that she refused to throw out even though it didn't even remotely fit her anymore. Her nipples were clearly outlined against the thin, tight cotton, and her sizable breasts were squashed flat, tantalizing lumps oozing out of the sides of the top.

Dinky got up, her eyes darting sharply to the right. “Look, I've gotta go to the bathroom.” She tossed a wallet onto the table. “Here, pay for the food and I'll eat my fries on the way home. And try not to give anypony an eyeful. Again.”

“Hey, these girls were meant to be free! Cagin' 'em up'd be a crime against nature!” Noi shouted after Dinky as she went to the bathroom.

“Fuck,” she muttered, dashing into the handicap stall and slamming the door shut behind her. She was going to need the extra leg room, and it wasn't like there was anyone who might legitimately need it. She yanked her skirt down and flopped back onto the toilet, not bothering to lift the lid.

God, her panties were fucking soaked.

“What the fuck is wrong with me? Am I seriously about to just masturbate at the drop of a hat in a public bathroom? To my fucking best friend?” She violently pulled her panties down.

“And your sister. Technically. I mean, I joke about it, but I don't fuckin' know what we are to each other, familially speaking.”

“Fuck.”

Dinky couldn't see her – the door to the stall was closed and Dinky didn't have x-ray vision – but she didn't need to in order to picture the shit-eating grin on Noi's face.

“How did you-”

“I have a nose, Dinky. You reek of fucking canned tuna.”

“Oh.”

“Can I come in?”

“No.”

“I'm comin' in.”

“Go away, Noi!”

“Hold on, I'm just gonna – Okay, maybe not. Looks like someone pissed on the floor. Who the hell does that in the girl's room? That's only supposed to happen in the guy's room. Ew.”

Dinky groaned, and buried her face in her hands. “Please go away, Noi.”

“Nope. If I can't crawl under, I'm gonna climb over.”

“Oh my god.”

“Hup! Wait shit no fuck-” There was a thud from outside the stall, and Dinky groaned again.

“For fuck's sake, Noi...”

“Wait, no, I'll try again.” There was the sounds of struggling and then another thud.

“Okay, okay, fine. You can come in. Fucking hell...” Dinky unlocked the stall, and Noi awkwardly stumbled in.

“Don't tell anyone about that, okay? As far as anyone knows, I climbed in successfully the first time and it was cool and awesome and badass and shit.”

Dinky rolled her eyes. “Yeah, I'm just gonna tell everyone about that time you barged in on me in a public restroom as I was about to start masturbating to you. That sounds like a great fucking plan.”

“Uh, yeah.” Noi scratched the back of her head. “'bout that.”

“Yeah. Sorry about that.”

Noi awkwardly waved her hands around. “No! No, it's okay! Really! You aren't the only person I've ever caught jerkin' it to me!” Dinky groaned as Noi hefted her breasts. “Like, lookit these puppies. I'd jerk it to me. 'm not mad at you or anything. 's just-”

“Weird?”

“Nah. I mean like yeah, okay, it's technically incest,” Dinky groaned again, “but only technically. 's not like we've been related by marriage long enough for it to be weird or anything. An' we're only related by marriage, soooooo-”

“Noi please stop you sound like some kind of weird Neighponese porno.” She slowly stood up, reaching down to pull up her skirt, only for Noi to put a hand firmly on her shoulder, pushing her back down.

“Hold up, Dinky.”

“Noi, if we're going to be having an actual conversation about this, I'd rather at least not be sitting on a toilet with my skirt around my Noi what the fuck are you doing.”

Noi had gotten down on her knees, putting herself eye-level with Dinky's soaked panties. “Makin' sure I don't leave my best friend with blue balls. Metaphorically speakin'. 'sides,” she said, leaning in closer, “been wantin' to fuck ya' for years.” With that, she shoved her face into Dinky's crotch, inhaling deeply. “Man, y'all smell good.”

“Noi, nggggg, that's weird.” She weakly pushed at Noi's head in a futile attempt to stop what she knew was going to happen immanently. “Please stooooooooopnggggh.” Dinky's hands involuntarily clench themselves into fists as Noi bites down on her panties, gently pulling them down and out of the way.

“Nope, sorry hun. You want this. Don't lie to yourself, you've wanted this shit ever since puberty.” She stands over Dinky, glaring down lasciviously. “Lotta ponies would wanna be in your place right now, slut. 'course, if y'all don't wanna admit to yourself that just the thought of gettin' eaten out by the mare of your dreams is almost enough to make you cream yourself on its own, howzabout we put your pretty little mouth to better use instead.”

She unbuttons her jean shorts and slowly unzips them, letting them drop to the ground, revealing that in addition to the lack of a bra, she also isn't wearing panties. “Suck,” she says, gesturing at her cock. Dimly, Dinky realizes that that wasn't there before, but then the musk wafting off of the two-and-a-half foot equine member. The bathroom stall is soon filled with the overwhelming stench of sex, drowning out Dinky's thoughts with its sheer intensity. “Suck my cock, bitch. Now.”

She doesn't need to be told twice. She collapses forward onto her knees, shoving her face into Noi's limp cock and letting its powerful masculinity overwhelm her senses. “That's more like it, slut. You like that? God, you're a fucking freak, ain't'cha? You act all uptight and proper and shit but give you a big ol' cock and you're just a quivering mess on the floor. Pathetic.” She roughly grabs Dinky's head with both hands. “Now get my cock into your mouth before I start getting hard.”

Dinky's mind swims, overwhelmed by lust. She stares at the gigantic beast of a penis, bright pink mottled with brown splotches along its length, and it fills her very being. It's all she can think of. “Cock,” she mutters to herself once, and then again. “Cock.”

“What? Dinky, you... you doin' okay? You've been kinda out of it since I,” her sentence trailed off into nothing. Noi blushed as what she'd almost done sank in. “Look, I'm sorry. Really. Just because I know you've got a crush on me doesn't make it cool for me to just eat you out in a public bathroom.” She sheepishly rubbed the back of her head. “I guess I should prolly leave and let you, uh, deal with things, and we can talk about this properly at home?”

No response besides some heavy breathing.

“You, uh, you sure you doin' okay, Dinks?”

“Coooooooooock.”

“Gah what!” Dinky slumped forward onto her knees, shoving her face into Noi's crotch, tongue lolling out lazily as she licks at Noi's flaccid length, getting it nice and lubricated before she swallows it to the hilt in one go. “Good slut. You'd think you've done this before. Fuck, lotta ponies probably don't need to see you suckin' cock like a pro to think that. They just look at you and know that whole prim and proper virginal honour student act you put on is bullshit. You're nothing but a repressed little cumslut just aching to shove the first cock you can get your little whore hands on down your throat. And the next one after that right up your tight little asshole. Isn't that right, Rumble?”

If Dinky's mind wasn't incapable of coherent thought at the moment, she would have realized that Rumble hadn't been there up until that moment. Instead, she just shifts her position so she's on her hands and knees, raising her tail high to give the colt easy access to her two free holes. “Good girl,” he says, gently scratching at the small of her back before grabbing her asscheeks firmly and spreading them apart to reveal his prize. “I've always wanted to fuck your asshole. I mean, you're so fucking uptight, it's gotta be like a fucking vice in there,” he says, rubbing his cock back and forth against her belly, letting her gushing cunt provide lubrication. “And since you're greedy enough you took Noi all the way to the hilt in one go, I figure it's only fair I give you the same treatment back here!” With that, he pulls his hips back, and then thrusts forward, plunging his girth into her asshole in one fell swoop.

“GnghhhhAAAAAAAAAA!” Dinky screamed in ecstasy into Noi's crotch, her jean shorts soaked through with Dinky's saliva on one side, and her own fluids on the other.” She gently grasped Dinky's head to steady herself, panting heavily.

“Holy shit, Dinks, if you wanted to eat me out instead, you coulda just said so. Kinda gonna be tough to do it through my pants though. Gimme a sec here...” She made an attempt to pry Dinky from her clothed cunt so she could remove her shorts, and failed miserably – between her face being pressed tightly into her crotch and one hand having a death grip on her plush ass, and her own limbs being weak from arousal, she didn't stand a chance until Dinky's free hand worked its way into her panties and she began to chant “cock” again.

“Coooooooooooooooock,” she moaned, as Noi took the opportunity to remove her shorts. “Cockcockcockcock cooooooooghhhhh.”

“Yeah, that's what you're good for, slut. Suckin' cock and getting fucked.” Noi grunts as she thrusts her now fully hard cock in and out of Dinky's face, while rumble does the same in the rear. Dinky is only capable of vague gurgling noises as her face and ass are fucked relentlessly by her best friends. “You're so good at this, slut. Gonna cum any second now. Mmmmm, I bet you'd love this. Havin' a big ol' fucking cock of your own, not havin' to rely on the generosity of other folks to get your fix.” She groans, deep and guttural and primal, as her cock swells bigger inside Dinky's throat, and Dinky's horn began to glow with a dull gold aura.

“Coooooooooockkkkkkkkkkkk,” she moaned, deep and guttural and primal, as her magical aura spread, enveloping her pelvis in a warm glow.

“Just picture it. Big and thick and hard.”

“Biiiiiiiiig, mmmmmm, thick and haaaaaaaaardnnnnnggggggggg.”

“And what's a cock without balls? Huge balls, full of cum.”

“'n ballssssssssssssss, fulla cummmmmmmmmmmmmmm, so much fucking cuuuuuuuuuuuuummmmmmmmm.” The golden glow intensified and concentrated, slowly flowing until the whole mass of magic was concentrated on her crotch.

“Of course, that wouldn't be nearly enough for you, would it, slut? No, just big won't do. You need bigger, and bigger and bigger and bigger until it's so big you can't possibly hide it any more. Until everyone who looks at you can see that all you're good for is fucking with your monster cock.”

“BiggerbiggerbiggerbiggerbiggerbiggerBIGGER-” Dinky's magic pulsed, pushing her hand out of the way as it swelled and shifted shape, going from a vague blob into a cylinder that her hand quickly wrapped itself around, pumping up and down furiously.

“Uh... Dinks?” “Yes, that's it, whore. Cum for me.”

“CoooooooooooooCKFUCKKKKKK.”

Dinky came, hard. Hard enough that her panties couldn't contain the force of her orgasm; gout after gout spurted through her tented panties, painting the floor with thick, sticky fluid. It felt amazing. Like nothing she'd ever felt before, an explosion of pleasure, wild and uncontrolable. The strength left her body, and she collapsed backwards onto her ass, legs splayed out to her sides as she rode the crests of orgasm after orgasm after mind-blowing orgasm, gout after gout of cum rocketing straight up from her brand new, ten inch long horsecock.

Darkness encroached from the edges of her vision, and slowly she felt herself losing her grasp on consciousness. With one last weak moan, she passed out.

Author's Note

Sorry this took so long, folks. I'm hoping to keep the next few chapters coming out at a decent enough pace at least.