Chapter Text
I slipped the strap of my dress over one shoulder, then the other, and allowed the fabric to free-fall down to my hips, where it caught. I'd had the biggest dick in Equestria for a year now, and I still wasn't used to all the different methods it found to get in the way. I looked down, completely bare from the waist up, with a big, awkward length of fabric held out in front of me at a right angle, bunched up and wrapped around my waist like I was trying to wear a blanket as a skirt.
I sighed and reached under the dress, gripping the garment and using both hands along with a roll of my hips to pull myself free, allowing the dress to fall to the floor. I lifted my arms up over my head to stretch out for a moment, and caught my reflection in the mirror. I was becoming used to seeing this massive beast sticking out in front of me. Wrapped in the elastic lace sock that was affixed to the front of my panties, it almost looked elegant.
Twenty-two-point-four inches at full length, three-point-two inch diameter, ten-point-zero-four-eight circumference. Full volume: seven hundred and twenty-point-two-four cubic inches of throbbing pleasure, hard as an iron bar, hot as a hearth to the touch. It had been forged by an incomprehensibly complex confluence of experimental potions, each one enchanted with a different variation on a love spell. There were sixty-four potions in total, some number between six and seventeen of them had combined together to do this to me. The possible permutations were so astronomical that it wasn't even worth considering Somewhere in the hundreds of vigintillions , I think. There would never, ever be a way for me to know exactly which spells had fused together to cause this.
Without knowing exactly which spells were involved and what ways they were interacting with one another, it was simply not possible to undo. Not without serious risk to all six of us, at least. So we were stuck like this.
The scholar in me hated this. An impenetrable mystery, true entropy at work, obscuring the truth that I always tried so hard to find. I hated that there was no way to figure this out, to work away the layers of uncertainty until I found the reality of a thing hidden deep within. How was I supposed to just accept that I was suddenly and irrevocably changed in such a drastic way and I would never know how it happened? It was a direct result of my own research, yet I could never understand it.
Another part of me was comfortable with this. It was a matter of the heart, not something you can pin down with facts and figures. One of the few empirical things we had been able to determine about the mishap was that a spell to bring about or influence one's 'true desires' had combined its effects with an aphrodisiac and a physical enhancement spell. Those two had... interpreted our 'true desires' rather oddly. None of us was strictly a lesbian at the outset, but we all had latent romantic feelings for one another in some way or another, so the magic decided that the only thing holding us back from acting on those feelings was a lack of penis and a little extra libido.
The magic had, loathe as I was to admit it, been right in the end.
We had spent a year in confusion and uncertainty. I had worked myself to the bone trying to find a fix for it, everyone had their share of problems. We had, for lack of a better term, been a huge mess of friends-with-benefits. We were basically on a hair trigger now. The slightest bit of arousal could end up being downright crippling, preventing us from thinking about anything other than getting off, so we had haphazardly... assisted one another with that. Over the course of months, feelings had bloomed, trusts got betrayed, communications broke down. At one point, these things had all but torn us apart.
It was only in discovering the nature of the 'true desires' spell that we were able to reconcile. This was, whether we were able to admit it aloud or not, what we really wanted. To be with each other, no choosing one above the rest, no forcing the others to deny their feelings for our own sake, just being happy and in love with each other. Thus, The Hexagon of Girlfriends had been born.
I ran a hand across my body, feeling a tingle as my fingers traced the slight arch of my breasts, down across my belly and to the erection, which had somehow gotten even harder from my self-admiration in the mirror. It was hot, and I could feel my own heartbeat through the finger-thick veins that spiderwebbed the surface. A little flicker of pleasure radiated from where my fingers made contact, pressing the eyelet lace against my flesh. I bit my lip, wrapping my fingers around it and giving one long, slow, steady stroke from bottom to top.
I heard Applejack moan loudly through the wall, and realized I had let myself get completely lost in thought. I was supposed to be helping my girlfriend, and yet here I was jacking off into the mirror and pondering my situation. Stupid... I grabbed my cock by the base and pointed it down as far as it would go, which wasn't the most comfortable thing in the world, but it was sort of necessary in order to get these panties off while I was hard.
Quit getting lost in your own head, Twi. You know better than this by now. I pulled the panties all the way down, unpeeling the white lace from my length, which promptly launched back up as soon as it was free of its confines, and impertinently smacked me in the nose before it settled back to jutting out of me at a right angle, kept from pointing any higher by its own impossible weight.
I kicked my panties aside, along with my shoes and stockings, and stepped into the shower, turning on the water and standing under it. The sudden rush of heat and the gentle pitter-patter of water pelting my coat put me at ease immediately. I felt the stress and tension of the evening, so deeply ingrained into my muscles that I hadn't even realized how much of it there was, begin to melt away.
After a few moments, my face felt weirdly sticky, and I reached up to run my fingers across the ultra-fine, ultra-short furs of my cheek. When I pulled them away and looked, they were stained black. I had forgotten to take my makeup off. This also reminded me that I'd forgotten to seal it before leaving, something Rarity had insisted I get in the habit of doing. Dammit dammit dammit why am I so bad at being a girl? Spike managed to figure it out in like a week, but I've been one my whole life, and I can't even get something like makeup right!
I let out an exhausted groan and reached over for the washcloth hanging on the shower door, scrubbing it up and down, heedless of staining the little towel. I could wash it out later, I just needed to make sure it was all gone and didn't make a mess of my face. I was supposed to be getting cleaned up, after all.
While in the middle of my vigorous scrubbing, I felt something touch my back, causing me to tense. I snapped upright and looked around, my face mostly cleaned of the makeup, leaving black and pink smudges all over the washcloth
“I had a feeling you'd forget about that.” Rarity giggled, running the hand she had placed against my back up to my shoulder, snaking her other arm around my waist. She was, of course, immaculate, already had her makeup removed. Shit, had I really been so distracted that I couldn't hear her as she came into the shower behind me?
“What happened to Applejack?” Despite myself, I arched my back at the feeling of her erection grinding against it. I closed my eyes and sighed, fighting the urge to bend over and start riding her immediately.
“I ate her out for about five seconds before she exploded and passed out.” Rarity pulled herself against me fully, wet breasts pushing into wet back, I could feel her heartbeat in time with the twitching pulses of her cock against my back, speeding up in tandem with mine.
“You don't sound disappointed... I assume you had this planned, then.”
“Of course I did. I've had a few dates whose judgment was overtaken by alcohol.” She kissed the back of my neck, I tilted my head to the side to allow her free access.
“What would we do without you?” One of her hands moved up to toy with my nipple, the other went down to grip the base of my shaft, stroking it casually.
“Fall into despair and never feel happiness again, I presume. The exact same thing I would do without any of you, darling.” I placed one hand over hers at my chest, and she released it in order for us to lace our fingers together. “I'm the one who brazenly charged in on a topic I should have known was sensitive.” She continued, “It's a discussion we'll have to have eventually, but I daresay it was a bit crass of me to talk about it so blatantly on our first date, especially knowing how touchy she is about all of this.”
“It's not your fault.” I leaned my head back and turned it to the side a little. Our horns grazed across one another, eliciting a little sizzle and a shower of sparks. Both of us shuddered in pleasure at the sensation.
“All three of us had jitters about tonight.” She said between kisses, her strokes had become more determined, more steady. She was properly jerking me off now, even if it was slow. “I just have a little more experience hiding them than you two.”
“Nnhh... you helped. You both did, honestly. Seeing that I wasn't the only one who was a nervous wreck about this made me feel a lot better...” I gasped as her hand returned to my breast, rolling the sensitive bud at the tip between thumb and forefinger.
“I could practically see the weight lifting off your shoulders when I spoke first after you opened the door.”
“I spent almost an hour trying to practice in front of the mirror.”
“Of course you did.”
“I was--nnhaahh! I was n-nervous!” She wasn't relenting at my breast or my cock, and I wasn't about to slow her down. “Mnnhh... I appreciate you, though...”
“And I, you, darling.” I arched my back, pressing myself into her member harder. I couldn't wait much longer. We'd both been incredibly turned on, if a little freaked out, by Applejack's request. It wasn't in the cards yet, but damn was it incredible to imagine being knocked up by one of them. I understood why AJ wanted it so badly: it scratched some deep, primal itch in a way nothing else could.
“Okay, enough screwing around. I need you.” I whispered, pushing up on tip-toes to get a better arch to my back and grind her cock between my ass cheeks more thoroughly. I leaned forward, one hand gripping the handle atop the soap tray on the inside wall of the shower, the other grabbing the handrail of the sliding door, holding myself at an angle so I could present my arousal to her directly.
“Nnghh... I thought you'd never ask, darling...” She purred, pulling back from me and allowing her length to point straight out, lining up with my slit.
It pressed gently against the heat between my legs, slick and dripping with excitement so intense even the water running down my back wasn't able to wash it all away. Rarity was an impressive sixteen inches long, nearly as thick as my own, and I was eager to feel every inch inside me. I wasn't sure what had determined our size, but it seemed to have something to do with our inherent magical ability. I was the biggest by a pretty wide margin, but any of us could have made a pornstar blush: Even Fluttershy was ten inches long. I was pretty confident that even if we hadn't gone through with the polyamory idea, none of us would ever be able to find a partner who could satisfy us anymore after getting used to these monsters.
I pushed back, and felt a surge of pleasure as my lower lips parted around Rarity's cockhead. She was the one who seemed to best understand that just because I was the biggest, it didn't mean I would never want to be on the receiving end. She gripped the base of my tail and pulled me back, slowly drilling the first several inches of her length into me.
“Nhhfffuck... come on, you don't have to be so gentle with me...” I didn't necessarily want her to be super rough or anything, but I definitely wasn't patient enough to take ten minutes on the first thrust alone.
“A proper lady shouldn't be handled so roughly.” Rarity cooed, but I felt a hand grab my hip and pull me back farther. I gasped at the sensation of several more inches of flesh pushing into me. “It's been a while since it was just you and me like this.” She leaned over me to whisper in my ear, her soft breasts pressing into and molding against my back. “I intend to savor it.”
I tensed my muscles, clenching around her cock, my own leaping up between my legs with every pulse of my heart. I didn't have the same insane control over this sort of thing that she and Rainbow Dash did, but I could at least milk a cock when it was stretching me out so much to begin with. “Mnnhh... yeah? I'm your proper lady now?”
“Of course, darling.” She pushed further in, the hand at my hip slid up and she began toying with my breast again. I could feel her deep in my belly, only halfway in and already reaching depths most men could only ever dream of, “A beautiful lady who treated me to an incredible evening, and then offered herself up to me at the end of it. What sort of 'gentleman' would I be if I took advantage of such a gracious gift?”
“Mnnhhghh... stealing a young, innocent maiden's honor like this? I wouldn't say that's—nnhh... v-very gentlemanly of you.” I turned over my shoulder to find her face right next to mine. Our horns bumped again, and we both twitched at the shock of pleasure and sudden sound. A couple more inches slid inside me.
“And you bending over to beg me for it wasn't exactly ladylike, but we're fantasizing right now, so hush and let me treat you right.” She pulled me further onto her shaft, nearly all of it was inside now, and my pussy was approaching its limits.
Under normal circumstances, having something (or someone) bump against your cervix is painful, and penetrating through it is actual torture, not just the kinky kind. Good thing, then, that elasticity charms were a simple and effective countermeasure that any unicorn could learn. It had only taken a little effort to find a way to make the effects permanent for anyone who wanted it. Most people never had need of an extra-elastic body all day every day, but most people weren't dating five of the most well-hung creatures in all of Equestria. We were not only capable of feats that defied anatomy, we were experts at them.
All it took was a little pressure, and I felt the tight ring of muscle at my cervix stretch out just as my outer lips had moments before, and Rarity's thick, throbbing cock had pushed its way into my womb. My entire body shuddered and I clenched down on her cock again, my own member hard as steel and spurting thick pearly jets of precum all over the floor of the tub, each one voluminous enough to fill a coffee mug with a little overflow.
“nngghhyessss... fuck, that feels incredible...” I gasped, rolling my hips in a motion that I couldn't have imagined a year ago, but now felt completely natural. My ass gyrated around, moving in all three dimensions at once, tugging vertically and horizontally on the base of Rarity's shaft to change the angle of pressure against my inner walls, while simultaneously slipping an inch or two in and out of me to milk the glans with my cervix. Rarity rolled her hips in a similar fashion, perfectly in sync with my own, amplifying the effects and making my knees weak.
“Mnnhhh... that's good...” She purred, pushing the last couple of inches inside, hips pressing into my backside, completely linking us. Her arms wrapped around me, one across my waist, the other at my chest, and she hoisted me back up to a standing position. While I was bent over, my tunnel had been parallel to her trajectory. It may have been a tight fit, but we were at least working along the same vector. Now that I was pulled upright, she was pushing forward while my pussy turned upwards, causing her to grind more fiercely against the anterior wall and multiplying the pressure we placed on one another.
I reached a hand down to my stomach, knowing what I would feel without looking down. My belly was distended outward, rounded up as my insides were rearranged for Rarity's length, every inch of my trunk now dedicated to milking her cock. I ran my fingers across the bulge, most of it was as soft and pliable as my flesh was normally, but in the center, I could feel the throbbing stiffness of her cock inside me. I stroked up and down as best I could, feeling my own walls pushed in from the outside against her cock. She cooed softly in acknowledgment of my touch, and I felt her begin to move.
Every single motion sent waves of pleasure radiating across my body, starting deep in my core and washing outwards across my extremities. I tilted my head further and pressed our horns against one another more insistently. She began rocking her head back and forth in tandem with her slow, shallow thrusts, the sizzling sound of our magics grinding against one another growing louder than the hiss of the shower.
I pushed myself back, body aching to feel her even deeper, and she thrust forward in response. My weight was lifted off the shower floor, and I was barely even touching the ground with my toes any longer. I was speared on her length, gravity keeping me firmly in place, whole body flexing and writhing, working her cock up and down. Her arms wrapped around my waist, squeezing tight at the bulge she made in my stomach, and began thrusting.
With how worked up we had gotten earlier, it didn't take long before I felt my orgasm building, tension knotting up at the base of my cock, growing tighter and tighter with each motion. “Nhh... f-fuck... I'm already close...” I whispered.
“Me too, darling,” She said back, squeezing tighter at my distended stomach, which drew a gasp from both of us.
“Nghh... Gods I needed this. Come on, babe, give it to me... don't hold back.” I lifted a leg, managing to find purchase on the side of the tub, which allowed me to actually pull myself up, my stomach shrinking down some. I felt a powerful tugging at my insides, one that used to terrify me, but now excited me to no end, as my tense inner walls hugged tight to Rarity, desperate to keep a hold of her. There was a distinct 'pop', felt rather than heard, as my womb released and her glans retreated past my cervix, and several inches slid out of me as I pulled up and she pulled back.
In perfect sync with one another from having done this so many times, we reversed direction together, and I felt her slide into me all over again. The intense, exciting, impossible pleasure of my innermost gate opening for her again rushed over me, and my knees trembled, threatening to stumble and lose my precarious position. I reached down and grabbed the handlebar of the shower door again to stabilize myself, and just like that, it had become a rhythm.
Pop, pop, pop, I felt her exit and enter my womb over and over again, each thrust just a little faster than the last one. Soon each 'pop' was accompanied by a 'slap' from the impact of her hips against my ass, and the pleasure simply rose, rising in a burst, then retreating most of the way, then rising again, a little higher each time, edging bit by bit towards the tipping point of my impending climax. She moaned gently whenever she hilted inside me, I moaned louder whenever I felt her pull back and nearly turn me inside out.
“I'm... ahhh... c-cum—hhahhh... cumming!” I whispered just in time, ragged gasps of breath interrupting every word, making it hard to speak. My body tensed, and that knot of tension exploded outward, warmth rippled across my core, down to my toes and fingertips. Every muscle tightened as hard as it could, all but locking Rarity in place within my womb despite the slick softness of my walls.
I felt myself shudder uncontrollably, shoulders shaking violently as I breathed out in a wavering moan. My cock tensed the same as the rest of me, and the underside bulged wide for the torrent of seed that rushed through it. Absolutely unreal volumes of thick, opaque, pearlescent cum burst forth in a thick jet from the tip, firing with enough force to make an audible 'splat' when it hit the wall just above the shower handles. It didn't stop there, though. That single first jet took nearly five seconds before it waned and began to arc downward before it could hit the wall. Just as soon as it did, though, another came hot on its heels, just as strong as the first and lasting almost as long. Another came after that, followed by another, and another.
Inside me, I felt a sudden wave of heat and pressure as Rarity followed suit. My cervix was wrapped below the glans of her cock like the neck of a balloon, and it would take some truly incredible force for anything to escape. Every drop of her cum was held inside me, pouring straight into my womb, fulfilling the analogy of a balloon quite perfectly within seconds. I shuddered, my own climax still raging as I felt my stomach swell larger, the force of her ejaculation tangible against my inner walls the whole time.
We were silent the whole time, eyes closed, breath heaving, basking in the ongoing ecstasy of what could only be described as inhuman climaxes. It took me almost a minute every time I came, and Rarity's output wasn't far behind mine. She kept her arms around my waist, adjusting to the growing size of my belly as it stretched out until I looked pregnant fit to burst. Finally, the torrent slowed, the intense pleasure subsiding little by little, like the tide receding from a beach, replaced with the butterflies and tingling nerves of afterglow. I lifted the foot braced against the side of the tub lifted up, still a little shaky, and reached forward, shutting off the shower before settling back down.
Rarity finally pulled back, one final 'pop' as she left my cervix open and gaping, one final shuddering wave of pleasure as she slid out of my stretched pussy, and I was left empty moments later. I immediately felt the heat running down my thighs, my womb emptying itself of her orgasm with enough pressure to send a jet of it straight out, angled with my pelvis, to mingle with mine on the floor of the tub with a loud splash.
“Is something wrong, darling?” She asked after a few seconds, delirium from cumming like that must have slowed her reaction to me shutting off the shower.
“No, I just... didn't want to lose all of this...” I dropped to my knees, stomach still bloated, and reached forward to flip up the drain stopper underneath the tub faucet.
I had done measurements, of course: My testicles produced an absurd sixteen gallons of cum each day, and each orgasm averaged around four gallons. The longer I went without release, the more I let out, and I had been so stressed about the date that I hadn't masturbated since this morning. I had similar numbers for each of us, Rarity produced twelve gallons each day, and averaged one and a half per load. I estimated I had doubled my usual from having held it in for so long, and it certainly felt like hers was significantly larger than usual as well. Now that I was down on my knees and her cum was spilling out to fill the tub, I could completely submerge my hands in the stuff.
“Mnnhh... I suppose we were going to have to do a second shower anyways, weren't we? Might as well enjoy the mess while we can, right?” She lowered herself down behind me, and I rolled over, my stomach down to about half of its previous size. A thick glaze of our seed coated me from the knees down, dripping across my thighs.
“Enjoy the mess? Who are you and what have you done with Rarity?” I asked as she crawled up on all fours between my spread legs, hands and legs covered just as mine were now.
“Hush. There's a time to indulge in a little raunchiness, and I think this certainly qualifies.” She kissed me, her half-hard shaft, still slick and dripping from releasing its load inside of me, rubbed against mine. “All I ask is that you keep it out of my hair as best you can.”
“Yes ma'am.” I smiled, leaning back in the tub, able to almost completely submerge my torso in the opaque whiteness. I didn't care if my hair got messed up, I needed to feel myself surrounded by this. It was a symbol of our first night together as real lovers, not just haphazard sexual partners. “So... I think we need to plan a hot tub date for all six of us at some point...”
“Implement a no-cumming policy for twenty-four hours beforehand, get together, empty tub, and ride one another until we fill it up.” She replied and lowered herself down on top of me, her cum all but emptied from inside me now. “I think that would be wonderful, yes.” She grinned, looking down at me, hair carefully kept confined to her back, soaking wet from the shower so it didn't spill over and get messed up.
I leaned up and kissed her again. She kissed me back. I didn't pull away. I didn't ever want to pull away. I wanted to lie here and kiss her, drenched in our obscene, unreal love until the sun burned out. For all the confusion and anxiety this evening had caused, it was undeniably the best night of my life.