Senior Year Ponies Up

Ever since Sunset had shared the news about her potion with the rest of the Rainbooms, Pinkie Pie's mind had been working above and beyond even her usual frenzied speed. Normally she wasn't someone prone to thinking long-term, except in specific party-related circumstances. But now she realized a whole new group of her fellow students was opening up to her. Literally, she hoped.

It was an open secret Pinkie was well-acquainted with the men of Canterlot High. Her iron-clad dedication to keeping secrets and her desire to be close to everyone proved a powerful combination. The straight population of the school even had an (always whispered) saying: "what happens in Pinkie, stays in Pinkie." While she'd of course never encourage or even allow anyone to cheat, couples broke up all the time, and the sad former boyfriends definitely needed comforting. If the couples got back together later, well, great! She was mostly interested in eating the cake, someone else could have it.

Later, she even found that girls were learning the "Pinkie rule". She'd gotten more than one text from a girl going out of town on vacation asking her to take care of the boyfriend's needs. Who was she to argue with her friends? All in all, by now, Pinkie had been intimate with nearly every dude at the school, which she considered a point of pride, though of course she'd never brag about it and breach their trust.

To her sadness, though, Pinkie happened to be straight. She'd certainly tried! She really wanted to share the delicious gift of orgasms with the girls, too, but she just couldn't get enthusiastic about pussies. And if she wasn't enthusiastic, she couldn't provide service up to her standards. Now, though, a new option had appeared! She wasn't sure how she'd feel about being the one doing the dicking, though she was eager to find out. But she was sure she'd enjoy taking another girl's magical cock. She'd never had any trouble finding her fellow ladies beautiful, or their bodies nice to look at. She just really liked dick. Pussy, mouth, or ass, taking her lover inside her appealed to Pinkie's hostess nature. The phrase wasn't just "what happens in Pinkie" because it was clever.

Now, the possibility of being able to have done the entire student body's....bodies by the end of senior year seemed like a real one, and Pinkie was eager to get to work on it. But she needed to ask Sunset's permission first, and she hadn't had a chance yet. And then she'd need to get in touch with Other Twilight. She knew Sunset had a fair number of potions, but they wouldn't be nearly enough for Pinkie's needs.

For now, though, as the school day was ending, she had a more pressing concern: thinking about this for the two days or so since Sunset had spilled her secret had left her aroused nearly to distraction. She wanted to jump Sunset herself, but the other girl hadn't responded to her text about meeting up after school. It wasn't surprising; the school required phones to be on silent, and Sunset still hadn't learned the knack of always checking hers. Still, it was a disappointment.

Instead, she had to fall back on her emergency vibrator, hidden in her gym locker. She'd always rather have a real person, of course, but all of her usual suspects were busy with after school activities today. After spending all day wondering what kind of dick each of the girls she saw would get, and how they'd prefer to put it into her, she didn't want to wait until the evening.

Of course, Pinkie being Pinkie, it still took her a while to get to the locker room after the last bell. Half the rooms on her way had some club or other meeting in them, and she just had to go in and say hi. After all, even if sex was one of her very favorite parts of being friends, it wasn't anywhere near the only one. Or even the most important.

So by the time she finally made it to the locker room, nearly an hour had passed. The girls track team were on a short practice - they'd just had a meet, and the coaches were giving them time to recover. Pinkie was worried she'd have to wait for them to finish to get the privacy she wanted, but she walked by them leaving on her way, including obligatory hi-five to Rainbow Dash, so she thought she'd be safe until the other teams finished up, which would be another hour.

When she moved in among the lockers, though, she found Muffins still there. Though she was disappointed not to be alone, she couldn't be too upset. The grey-skinned girl was a friend of hers, after all. Okay, everyone was, but Pinkie liked Muffins a lot. She wasn't the best student, sure, and she was a bit clumsy. Pinkie knew she'd been teased for both in the past. But she wasn't stupid, she got things eventually, and she was just so open and guileless. Kind of like Fluttershy, but without the, well, shy.

Muffins was also on the track team, and clearly struggling after practice. It was clear from the sweat on her body that hadn't even hit the showers yet, and Pinkie, having spent all day thinking about her fellow girls, couldn't help but be reminded of just how hot the other girl was, and her state of near-undress - bra and panties only - wasn't helping. Though she wore baggy clothes that didn't make it obvious day-to-day, Muffins had a killer ass, as big as Pinkie's generous one, but firmer from her athletics. Pinkie thought it might be her favorite at school, though she did like big butts, if she wasn't going to lie. Her simple cotton panties showed it off to great effect. Her breasts were similarly generous, again of a size with Pinkie's D-cups, but less prone to jiggle. While Pinkie thought her own jiggling was pleasingly festive, she admitted there was a joy to big, firm breasts like this as well.

Right now, Muffins' breasts were jiggling a bit, though, as she struggled to get her bra off. It had a rear clasp, and she seemed to be having some trouble working it.

"Darn it, I just don't know what's wrong," she muttered, then saw Pinkie. "Oh, hi Pinkie! Mind giving me a hand? New bra, I didn't notice it had one of those dumb back clasps."

"Sure!" Pinkie moved towards her. "Why didn't your teammates help, though? Are they being mean to you? Do I need to yell at Rainbow?"

"Oh no," Muffins said, "they're wonderful. I just took longer to get back, I forgot we were on short practice and took the longer loop partway before I remembered."

"Oh, that makes sense," Pinkie popped the clasp, freeing the grey orbs with a pleasing bounce. "I hate those too, they're hard when you're as big as us! I usually just turn the bra around."

"Oh," Muffins said, "that's really smart! Thanks Pinkie!" She lifted her water bottle and uncapped it. Pinkie saw it was a distinctive bottle.

"Wait," she said, "that's--"

But it was too late. Muffins opened the bottle and downed the whole thing in one long chug.

"...Sunset's water bottle," Pinkie finished, suddenly flushing darker pink at the thought of what seemed about to happen.

"Oh, that's where it came from! I bumped into her yesterday," Muffins giggled. "I have a lot of these, I thought it was just one I'd forgotten about. But who cares, it's just water, right?" Before Pinkie could answer, Muffins' eyes rolled and her grey face darkened. "Whoa. Did she spike this or something?" Muffins giggled again.

With a loud tearing, her panties gave in at the sudden pressure, and, as Pinkie'd suspected, new equipment burst forth. Whatever genes gave Muffins her generous chest appeared to have also carried on to her magical endowment. Her rod was a thick as any Pinkie had ever seen, and might have been slightly longer. She gaped, jaw slack.

Muffins reached down and touched her new cock in wonder, letting out a disconcertingly but adorably feminine eep at the contact. "Um, what did she spike it with?" She looked up at Pinkie expectantly. Pinkie bit her lip.

hey u busy after class? hmu

Sunset had a suspicion about why Pinkie wanted to be "hit up" after class. Though she'd certainly gotten a workout over the last few days, she wasn't opposed to the idea of getting her hot loaf in Pinkie's oven, so to speak. But she'd missed the text until after she'd already spent nearly an hour playing cards in the library with the gaming group. Now she wasn't sure if Pinkie was still interested, or if her legendarily short attention span had caused her to look elsewhere.

Well, there was only one way to find out. While Twilight originally wrote the app that let them locate each others' phones for emergencies, no one had ever minded using it casually before. It wasn't like any of them cared to maintain that kind of privacy. So she loaded it up and brought up Pinkie's location. She figured if she was still at school, she might still be interested.

She was mildly curious when the location popped up as the girls' locker room, since she'd never known Pinkie to do sports. But she was still at school. Sunset shot a text back, but figured she might as well head in that direction anyway. Bidding farewell to the gaming club, she headed out, keeping the app open to make sure she was still heading for Pinkie.

As she walked, she couldn't help her mind wandering. She'd seen Pinkie naked, of course. She was pretty sure the whole school had at this point. The party girl was always down for strip poker, strip spin-the-bottle, or just stripping. While some of their shyer friends had never been into it, Sunset until recently hadn't seen the big deal, given her Equestrian upbringing. While she also hadn't seen the appeal, she'd always been willing to be a good sport and participate.

So now she had rich grounds for fantasy. The differences between Pinkie and her other friends made her seem pleasingly novel as a partner. Her breasts were even larger than Rarity's, and Sunset imagined them jiggling as she pounded her. Her ass, too, was plump, and would certainly show each impact as Sunset thrust. But somehow despite her sweets Pinkie was hardly fat. Though she was by no means petite like Fluttershy, or bordering on underfed like Twilight, it was more that she was just bigger, and Sunset was sure that her stomach would bulge like the others if she took a few full loads. Though she knew Pinkie was on pretty much the best birth control one could get, she still found the idea of it enticing. With her full breasts and wide hips, she'd look heavily pregnant.

She was surprised her dick hadn't already emerged once she reached the locker room. She supposed Twilight must be right - the magic relied on physical proximity to her similarly magic-touched friends. In that case, she thought with a smirk, I hope Pinkie wants what I think she does, because I'm going to grow it as soon as I see her.

She was right, but not exactly in the way she expected. Pinkie was in the locker room, but so was Muffins. Both lay on a bench, Pinkie on top of the grey girl, both completely naked. And Pinkie was enthusiastically riding Muffins' massive cock.

"Pinkie! What happened?"

Pinkie turned to her with a grin. "Oh -- mmmph - hey Sunset," Pinkie pointed to the floor, and Sunset saw a familiar water bottle there. "I found your water bottle. Oooooooh. Muffins had it."

Now awash in familiar lust and aware of the pony prick tenting the front of her skirt, Sunset walked around to the front of the pair, hoping talking to Pinkie's face would be better than watching Muffins' huge shaft plunge in and out of her.

Muffins lay on the bench apparently nearly insensate. Her eyes were rolled back and her tongue hung out, and she panted as Pinkie fucked her in a steady rhythm. Both pairs of generous breasts bounced in harmony, the grey ones oscillating whole in a way that made Sunset long to play with them, and the pink jiggling such that there could be no doubt of the enthusiasm with which their owner was moving her hips against the cock deep inside her. So, overall, moving hadn't helped.

"I uh, got your text," Sunset said.

"Oh - mmm - yes! I wanted you to fuck me, but thing - aaaah - happened. I'll tell you about it later," she looked down at Sunset's obvious bulge. "It's - oooh - okay though," she reached out and grabbed Sunset's ass, pulling her close, then pulled down her panties, freeing her firm horse cock. "I'll take care of you too!" She opened her mouth and pressed her lips to Sunset's tip, running her tongue across the flared head and over the large opening.

"Wow," she giggled, pulling back, "it really is a pony cock."

Beneath her, this seemed to rouse Muffins, who giggled breathily. "It is! It's so cute!"

As Pinkie pressed her lips back to Sunset's meat, Muffins reached up and grasped it lightly, running her hands over the leathery, veined base. Sunset groaned. Pinkie looked up at her, and she'd never known eyes alone could look so wanton. She somehow stiffened even further. Pinkie twirled her tongue on the bottom of Sunset's shaft, then plunged her head down, going well past the medial ring, her lips pushing Muffins' hand all the way to the base of Sunset's shaft. Sunset's jaw dropped, but she was too aroused and surprised to even make a noise. Pinkie's warm, wet mouth and throat surrounded her, and Muffins moved her hand as much as possible, nudging her heavy balls with each tiny stroke.

Too much was going on to even let Sunset think, so she just turned all her attention to the wonderful sensations of two girls lavishing attention on her pony prick. Even there, the variety of sensations was nearly overwhelming. Pinkie's tongue, lips, cheeks, and throat all felt subtly different. Muffins' hand was dry and leathery, but still moved easily over her sweat- and spit-drenched shaft. Then, just when she thought it was all too much already, Muffins ran her tongue slowly and curiously along the bottom of Sunset's laden sack.

"!" She couldn't manage a word or even really a moan, but desperately wanted to warn Pinkie as she felt her flare begin to harden. Muffins took one of her massive balls into her mouth with a squeak, then two sets of vibrations filled her eager cock. Pinkie let out a long, shivering, full-body moan, and Muffins a tiny, adorable series of them. Out of the corner of her eye, Sunset saw Pinkie wrap her legs around the bench and Muffins and press down, while she saw Muffins' legs and hips straining to press her deeper into Pinkie. She realized that even now, her friend and fellatior was being inseminated.

It was too much. "P-Pinke!" was the best she could manage as she felt her flare go full hard and the first big rope of cum surging up her cock. Pinkie pulled back, but not all the way, and Sunset saw the flare puff out her cheeks. The first blast rushed into Pinkie's throat, and another moan caressed Sunset's shaft as Pinkie's whole body shook with her prolonged orgasm. Muffins kept pumping Sunset's shaft, too dazed by her own orgasm to stop, and it felt like each pull urged another rope of cum into Pinkie's waiting mouth.

In the tiny part of her mind still capable of knowing things, Sunset knew her magically massive load would be too much for Pinkie to swallow. She expected her friend to pull back, letting the last ropes splatter on her ample breasts and on Muffins's, dripping down on to the other girl's belly and face. She even thought coating both in her cum would be hot. She also knew that the position she was in with Muffins had never worked before - the volume of cum became too great, but gravity stopped it from going past the cervix, so the girl with the dick always had to pull out, or flip positions to let gravity draw the seed all the way into the womb.

Somehow, though, Pinkie continued to ignore physics and biology. She just kept swallowing, and just kept pressing Muffins to the bench. Instead, Sunset felt her mind return, at least in part, and her orgasm end. Only then did Pinkie pull back from her slightly drooping cock, lick her lips, and sigh. Not a single bit of sperm left her mouth.

"Horse cum tastes different," she said, contemplatively. "Not bad, though. Good different. Thanks, Sunset!" Before Sunset could reply, Pinkie's eyes widened. She looked at Sunset's cock, then down at Muffins.

"Hey, you two are both still ready to go! Mind if I stay right where I am, Muffins?"

"Only if you mind me cumming in you again, Pinkie."

"Oh good!" She turned to Sunset with a slight frown. "Sorry Sunny, I don't think I have room to drink any more."

Sunset laughed. "I didn't think you could take the whole first load! It's okay, watching you two go at it is super hot. If Muffins just leaves her hand there, and you don't mind my getting you two dirty, I'll be just fine." She moaned as Muffins pumped said hand again.

"Don't be silly, silly!" Pinkie said, all smiles again. From Celestia-knew-where - she wasn't even wearing anything! - Pinkie produced a bottle of lube. "My butt's nice and spread in this position, and I haven't had a nice cock in my ass in ages! Or a nice pony cock ever! If I'm gonna get so full of cum, I want it everywhere!"

Sunset grinned, and needed no further encouragement. As Pinkie began moving her hips on Muffins again, Sunset moved around to their rears. As Pinkie'd said, her wide, plump cheeks were spread wide, revealing a pucker as pink as the rest of her. She moved only a little on the cock still buried deep in her pussy, making sure long strokes didn't close her cheeks before Sunset could get all the way inside.

Well, Sunset thought with a shrug, first time for everything. Though she would gladly have filled Pinkie's womb, she didn't begrudge Muffins the chance. It was the other girl's first time having a cock, after all. Besides, she suspected she'd have plenty of chances. She imagined one of Pinkie's trademark "Truth or Dare" games, imagined stuffing her pussy while their friends looked on in fascination, and she was rock hard again. She poured a generous helping of the lube between Pinkie's cheeks, and enjoyed the gasp as she rubbed it in, making sure she'd slip comfortably into her friend's bowels. She pressed in in one long stroke, enjoying how tightly Pinkie's sphincter grasped her, but just in one place. It felt very different from her mouth, or from a pussy.

Pinkie moaned, then giggled. "Your cum's going to meet itself right in the middle, Sunny!" She thought for a bit, "probably right near where Muffins' is!" She moved a hand down to her belly. "This Pie is gonna have plenty of filling!"

Sunset looked where her hand was. Indeed, somehow she must have overcome gravity and gotten Muffins' sperm into her womb, because her belly was already notably distended. Where the girl's generous breasts had previously held them apart, Pinkie's swollen belly now nearly touched Muffins' flat one. Sunset grunted at the sight and began thrusting hard.

"Oh yeah, Sunny, that's the spirit," Pinkie said.

"I miss your balls up here, though," Muffins said, "they gave me something to do with my tongue."

"Oh, silly, I can fix that!" Pinkie put a hand behind Muffins' head and pulled the other girl up until their lips met. They were now pressed together from lips to hips, breasts, bellies, and groins all pressed tight.

And Sunset rode on top of them. She thought their closeness was adorable, so took it on herself to provide motion to the system. She pressed them closer together with her weight, preventing Pinkie from bucking her own hips off of Muffins' massive shaft, then began pumping herself. She could feel the other cock through Pinkie's internal walls, and she knew every time she gave a hard thrust, it was echoed below her. Every time she finished one, Pinkie's full ass moved, and the sight alone brought Sunset a little closer.

Beneath her, both girls were drenched in sweat and making out like new lovers, which she supposed they were. Sunset felt herself getting close. She reached between her own legs and found Muffins' balls and caressed them lightly, returning the favor. Then, remembering an unusual aspect of the magic, she reached lower, and dipped two fingers into Muffins' intact if relocated pussy. She was rewarded with a deep moan, and a hefty spurt of lubrication, which she pulled up and traced across Muffins' heavy balls.

That was too much for the new girl. Sunset felt the balls she was teasing clench, and her flare deployed in sympathy. She felt the pulse of cum surging out of Muffins and into Pinkie's reproductive system, and then let out a moan as she shot her own mirrored blast into her bowels. She nearly screamed with pleasure, and clapped her hand over her mouth to stop it. Even muffled on each others' mouths, the two girls below her seemed to be having equal difficulties staying quiet.

It felt like forever that Sunset was buried in Pinkie's rich ass, flooding her body with the entire contents of her magical balls, and feeling Muffins' own seed pulsing in below her. Finally, though, her cock disappeared, and she let herself slide to the floor. A steady trickle of thick cum dribbled from Pinkie's ass as she left, mingling with a similar trickle of slightly thinner human seed dripping from her now empty pussy over Muffin's neat box.

Pinkie too flipped off of her blonde lover with a sigh, and sat, back to the lockers, hand on her bloated belly. A small puddle of seed began forming under her.

"Wow," Muffins breathed, pressing her own hand to Pinkie's belly. "It really looks like I knocked you up." Her eyes widened. "Wait, did I?"

Pinkie laughed. "I'm on like all the birth control, silly. And Sunset's potions have some in them too."

"Oh," she said. "Whew. How does it feel."

"Neat. And kind of hot," Pinkie blushed. "Though wowee, I don't think I'll want sex again for at least, I dunno, three or four hours!"

Muffins blushed. It was utterly adorable. "I'm a little jealous. I wish I knew what that felt like." She ran her hand wistfully over Pinkie's belly again. "And I dunno if it's the magic, but now that I've just got my girly bits back, they're still all wet."

Pinkie giggled, then looked sidelong at Sunset, who shrugged at her. She'd found she had the same experience as Muffins, after all - once her magical cock disappeared, there was nothing left to be tired.

"I bet you could convince Sunset to help you out," Pinkie said.

"Wait, how?"

"Well, when she gets turned on, she sometimes gets a dick without using a potion at all. That's why she got one when she came in and found us like that."

"Oh," Muffins said, then "oh!" She sat up, large breasts bouncing in a way Sunset, as the owner of less large, slightly less firm, breasts, found both compelling and deeply unfair.

"Sunset," she said, moving to squat in front of her. The squat, whether intentionally or not, spread her legs wide, leaving no need for Sunset to imagine what lay beneath her trimmed blonde bush. She leaned in and kissed Sunset, pressing their breasts and nipples together. Sunset squeaked. Then Muffins broke the kiss, and whispered in Sunset's ear.

"I've never been this horny, Sunset. I want you to fill me up like I filled up Pinkie. I'm ready right now. I don't want it slow. I want you to fuck me until you cum your dick away." When she said this last, she placed two fingers at the back of Sunset's already dripping pussy, and slowly dragged them across it. By the time they reached the clit, they were sliding over full balls and then along Sunset's fully erect and ready equine prick.

"All right," Sunset whispered back. She'd already been willing, and Muffins had done an excellent job of making her ready. She didn't intend to let her down. She wasn't sure she'd be able to pull this off, but she was willing to try, Muffins looked pretty light, and she wasn't really in her best frame of mind for decision making. So she began to stand, but made sure to do so in just the right way. As she rose and moved her hips up, her cock was ideally positioned between Muffins' spread legs. As she'd hoped, the tip found the other girl's opening, and her eager partner slid her hips slightly, and as she rose to stand, she took Muffins up with her in her arms, and buried herself in the other girl to the hilt.

"Oh wow," Muffins and Pinkie said simultaneously, the first at the sensation, the other at the sight. Sunset knew even through the haze of arousal that she couldn't completely support the other girl forever, but it was all part of the plan. She moved to the row of lockers, pressing Muffins' back up against them for support. Then, braced, with the other girl's legs wrapped around her, she did the only thing she could, and exactly what Muffins had asked her to: she fucked her hard.

Both girls had the same goal in mind: emptying Sunset's balls in Muffins' womb as quickly as possible. So Sunset through finesse and tempo out the window. She pounded her lover against the lockers relentlessly, trusting that Muffins would get off when she did, given how eager she was to feel full. As it turned out, she was wrong...Muffins came first, the relentless pounding too much for her. She locked her legs around Sunset, stopping her pounding short, but the orgasmic writhing of her passage was more than enough to make up for it.

"Oh Pinkie," Muffins moaned, "I feel her head sealing me up! This pony cock is great!"

Indeed Sunset's flare had deployed, and her orgasm washed over her. She felt like her ropes were larger than ever, each big blast eager to fill this busty girl's little belly up. It only took three this time until the pressure was building against her flare, and the fourth surged into Muffins' womb.

"Mmmm, that's so hot," the other girl murmured, then giggled. "Good thing your potion makes sure you don't knock me up."

Sunset almost giggled back, then her eyes widened. She tried to pull out, but her own clever setup stopped it - Muffins was locked to her, leg and arm.

"Don't be silly," Muffins said, "I'm about to cum again just from this, you don't need to thrust again."

"I didn't take a potion," Sunset gasped through her continuing orgasm, "I just let the dick appear! It might be fertile!"

"Oh!" Muffins' own eyes widened. Then her tongue lolled out, and Sunset felt her pussy clench again around her as, somehow, her lover began cumming again. "Oh well," she moaned, "too late now. And honestly, that's really hot. Keep impregnating me, Sunset Shimmer!"

Sunset knew she shouldn't. She also knew she shouldn't want to. But she was in the midst of a shattering orgasm, and her lover was begging for her seed while beginning another. And, deep in whatever primal part of her had wanted a cock to begin with, she wanted to knock this girl up. She wanted to see her belly stay big with their...baby? Foal? She didn't know what it would be, but that animal part of her didn't care. She wanted to see Muffins in the halls with her bulging belly and know it was her seed that had made her that way.

Sunset grunted and pulled Muffins close, and she felt her own orgasm redouble, the ropes of seed replaced with the continuous, pulsing stream that she knew meant she was going to empty every drop into the other girl. Seed that, she remembered, was so potent that, if the spell had indeed worn off, it might well bring Muffins into season just to impregnate her.

They jammed their lips together to muffle what would otherwise be their screams of pleasure as Sunset felt her lover's belly swelling against her own. She thought of the potency of what she might be pumping into the other girl, and she nearly fell over with the orgasmic convulsion. She thought she'd never cum this hard, ever.

Muffins broke the kiss and whispered again in her ear. "This is the best ever. I want all of your sperm, Sunset."

With a last mighty shot, she obliged, and her dick vanished, replaced with a surge of fluids down her leg. She slid to the floor, letting Muffins slide with her, and both sat heavily.

For a long while no one spoke.

"I don't really want to have a baby, you know," Muffins finally said sadly. "Not yet."

"I know," Sunset said. "I don't want you to either. We'll need to see the nurse."

Muffins nodded.

Finally Pinkie spoke up.

"I drank too much. I think I'm gonna be sick."

Sunset sighed.

"Let's get both of you to the nurse, then."