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Mixing Colors

Summary:

Seth hated pondering.

If you had time to ponder, you had time to do something actually useful. But when you’re stuck in the physical manifestation of Aqua’s gullibility (i.e., the Flower Castle’s jail cell), you have a lot of time to ponder about… well, a lot.

Notes:

“But Aqua can’t be underage because she’s a flower and not achtually a human…!”🤓

Errmmm… BORING! Waiter, more loli content please!!

 

also Aqua being Aqua is extremely ignorant and refers to Seth’s parts twice as “girl parts” for reasons you’ll understand once you read so i guess sort of a warning?? i’m not sure why anyone would care but never know!

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Seth hated pondering.

If you had time to ponder, you had time to do something actually useful. But when you’re stuck in the physical manifestation of Aqua’s gullibility (i.e., the Flower Castle’s jail cell), you have a lot of time to ponder about… well, a lot.

Seth’s mind wandered in synchrony with their eyes between pillars of cold steel and the open space of the Castle’s luminescence bleeding in, providing a subtle gloss across the cell’s flooring and Seth’s rumpled attire pooling around them.

They scoffed to the unoccupied air, fingers mindlessly picking at the condensed ridges of paper, encased in its light gray cover.

Seth always lived their life by the book. They were probably the first and only one of the flowers to know and accept that they were never human; never to begin with, never will be. 

So why did they envy those insignificant wastes of space so much?

All of these stupid “Human” emotions acting up because all of those stupid humans… What’s the point of all this knowledge if they can’t even figure out insignificant things like these!

“Stupid humans… Stupid books!!” They thrashed, book in hand, against the flooring, each lambasted smack dislodging a tiny glimpse of a flimsy cover with an unmistakably bright display.

“W-What the…?” They paused, pinching the edge of the paper between their thumb and forefinger, peeling back something resembling a magazine that was slotted between the pages.

The cover was vibrant and playful, a keepsake of Asgore’s that Seth had forgotten they'd stashed away for further investigation. All they could manage was a sigh; why were humans so obsessed with these cartoonish caricatures…? They supposed something about them was charming, but the obsession seemed trivial and, frankly, ridiculous.

The first page Seth turned to had some crude handwriting scribbled on a blank sheet; perhaps it served as a lingering memento from the comic’s previous owner, a simple greeting by some “Ms. A”.

“The amount of skin these girls are showing is surely impractical… Do they not care about the cold? Or getting injured?? Why do humans praise such nonsensical imagery and writing!” They harshly complained to themself after skimming past a few pages with anime girls in revealing “battle armor”, accentuated features in the breast and under area to surely provoke some degenerate response in the viewers; what an utterly stupid practice. 

Seth turned to another page, of a considerably younger-looking girl in skimpy attire, fingers stilling on the page for a beat too long. They felt something foreign and warm bubble in their chest down to a contortion in their pants. They repressed the urge to look down and even validate that fact, distracting themself with another glance over the indecent girl, even if in hindsight it was only digging their hole deeper.

“Hey, this one sort of looks like…” No! No. Nope. Not going there. Absolutely not. Nothing about this vulgar caricature is anything similar to Aqua! Not to mention that’d be flat out wrong, wouldn’t it? If even illegal, surely.

Seth’s curiosity got the better of them; attention turned to some glossy tiles into their own reflection, face coated in smoldering red branching from cheek-to-cheek.

A sudden thud cracked, the comic snapping out of Seth’s hands across the jail cell’s tiles in a sweeping motion.

“This is ridiculous! T-That doesn’t mean anything! This—“ They emphasized, finally hovering an open palm over their strained erection,  “Doesn’t mean anything!!”

Tiny huffs and snivels smothered into their sleeved palm, legs spread with the needy tent contrasting the light purple fabric which they were straining against.

Was this the phenomenon of an erection? It wasn’t like Seth was being stupid asking that; of course, they knew what an erection was. The countless entries they’d read about arousal and human biology had made them quite well-versed in everything related to it. But to actually feel such a humane response for themself… And at such a scale, it felt almost unrealistic for a flower, or it should be.

“It feels so warm…” Delicate, teasing fingers slithered between flesh and fabric, palpable arousal lacing their fingertips as their back hitched into a weak arch, a thick seep of pre coming into contact with their hand from their heated tip.

Seth recoiled as fingers rolled back, coated with slick web. Now consciously aware of how fast their breathing had gotten, they pressed the aforementioned palm against their chest to read their own heartbeat, as if it was the deciding factor between them being human and flower.

This is ridiculous. They’re being ridiculous. This is obvious.

So why do they want more?

This went beyond science now. Beyond a fun little experiment. Beyond being a flower.

Seth reached back down to the front of their crotch, pulling down the elastic with a curled thumb. Quivering lips shuddered at the sensation of air brushing against their shaft, springing out of their boxers, the wetted head slapping lightly onto their stomach as they cinched their bottom lip between their teeth in anticipation.

Something choked up in their throat as their thumb skimmed across the accumulated pre-come pooling at the tip, watching the heavy excrement build up on the surface of their digit and pull back into a pearly strand.

“Uuu! What’s Seth doing? What’s Seth doing?”

Seth yelped at the sudden intrusion, jolting back and nearly catching their glasses, “A-AQUA!!!! HOW—!!” They almost felt their heart die out,  recuperating part of the shock between uneasy breaths while readjusting their glasses, “I-I mean… How did you get here?” Their eyes hinted over to the still enclosed jail bars, now fully aware of Aqua’s presence pressing her weight into their shoulder blades from behind.

“Aqua went through Aqua’s hole!” She chirped in that characteristically effortless tone as if it was the most normal sentence in the world.

“Aqua’s… What?” Seth saw a sleeved arm in the corner of their peripheral, pointing to a… conspicuously shaped Aqua hole in the bars.

Seth barely had time to find whatever would be an appropriate response to that absurdity before Aqua spun on the heel of her foot in a twirl, gliding across the tiles as if they were ice. “What’s that? What’s that??” She chanted before stopping to kneel beside Seth’s open legs, a neglected twitch from Seth’s cock greeting her zealous grin.

Seth’s face flared up enough to make them blossom, their obliviousness to their nudity sobering up a little too late, but Aqua seemed all too excited, her zeal rushing to her legs in light hops, “Uuuu… Seth never told Aqua they were a girl!”

Seth scrambled to piece together some sense between their incoherent mumbling, eventually, after some long moments, stumbling out a, “A-Aqua, I… That’s not — A girl?”

“Yeah!! Seth has that thingy girls have!”

A defeated huff fell from Seth’s lips, planning their next words out tentatively, “Aqua… Girls don’t have… That.” Of course, Seth knew it was much more nuanced than that, but trying to explain the complexities of gender and sex and so much and so forth to a girl that mistakes counting for how many knives she can throw at you seemed like a migraine in flimsy camouflage. 

“And, I’m not a girl! I’m a philosopher! A scientist! Gender is just a distraction when someone like me has more important issues to attend to~.” Like maybe acknowledging the fact they were bragging about their intelligence instead of covering up the glaring issue in the room… But they would digress.

“But… I’m a girl! I am, I am!” Aqua corrected like a pouting child.

Shockingly enough, Seth’s brow rose for the first time during that discussion, “Y-Yes… You are a girl, Aqua. That’s correct.”

Her pout grew, “But you’re saying that I’m not!”

“W-What?! I never said that!” Seth struggled to wrap their head around what Aqua was asking of them. Who the hell put that thought into her head? Was it another flower? Or even one of the troublemakers in that trio?

“You did!” She remained firm, her mannerism rigid and clustered enough to leave no room for debate, “You’re saying that I don’t have the thingy that girls have!”

Seth sensed a sudden rush of challenge underneath her raven-veiled eyes, their cheeks getting impossibly warmer as the blue-skinned girl tossed the entirety of her dress in a sign of rebellion, or maybe, in affirmation. Seth’s unwavering attention crossed over the soft curves and pudgy features in her legs and stomach to be expected of someone resembling Aqua’s age (or what would be qualified as her age).

“Uuu, see, see? I have a girl thingy!” Aqua bounced between the balls of her feet, arms outwards in a playful tone to show off her “evidence”, being her childlike cock nestling endearingly within her plush thighs, placid with a sweet sap of pre already teasing out her tip.

Seth could feel their groin pulsating with another needy flutter. “Why is yours so much bigger than mine?” Aqua added, taking notice of Seth’s sex now as stiff as a flagpole. She resumed her kneeling position next to Seth’s lying figure, a sly palm stretching out in ignorant curiosity.

Seth steadied their grip around Aqua’s wrist, pinning her hand to the air as she poorly attempted to wrestle against the grasp, thrashing and squirming and whining, pushing and pulling in a sporadic cycle, “Not fair! Not fair!”

“Aqua, stop that!” Seth urged, sounding more desperate than angry while pinning another one of her hands to a static state. Their bodies contorted into a tangled mess of limbs and chaos, as if their worlds were revolving around an imaginary point of each other’s weight.

Seth caught her other pesky wildcard, flailing her feet and digging them into their thigh jab after jab, distracting one of Seth’s wrapped palms towards her sheathed ankle, loosened enough for Aqua to slither her foot inwards, taking the sacrifice of her red boot with it, then the other.

“Aqua, seriously, stop! You—“ The sound Seth made felt like the result of a spring falling out of place on their tongue, the malfunction equal parts flustered and aroused to the sensation of Aqua’s foot pressing into their groin. 

Aqua’s toes dragged along the head of Seth’s cock, peeking beyond the crest of her foot. “Uuu! It feels all funny!! Is that normal?” She giggled, her fascination crystal clear and equally tantalizing for Seth as her foot curled around the cockhead, trapping it between her clumsy strokes and childish enthusiasm.

The slightest hint of stifled words fell from shaking lips; maybe it was an attempt at an answer, or maybe a plea; the only response given would be Seth’s shaky hips greeting her soles with languid thrusts.

Seth’s chest tightened in the tension and the illicit electricity; the burden of Aqua’s other foot weighed down their arousal like a snake wrapping its prey, her toes like fangs pinching the tip of their cock, teasing a spot just underneath their head that provoked a moan held back by only teeth.

Seth didn’t know whether to ask for more, to ask her to stop, or for them to utter a prayer under their heavy breaths, but all of the worrying and the wandering thoughts dissolved under the appeal of her feet smothering their sex, the enduringly torturous momentum taunting them with every stroke.

“Uuuee hee hee!! Fun game, fun game!” She innocently chimed, each eager rep accentuated by Seth’s desperate chase, hips buckling in tandem with a pendulum of in and out, in and out, then with up and down, up and down.

The few lingering throbs were the most potent, the most agonizing and distinct in their zenith as Seth panted out a string of mumbling all the while pale strips spilled out from the crown of their cock, Aqua’s footwork suffocating the tip once more to wring out shot after shot with the expression of a starstruck child looking at fireworks, watching Seth’s seed mark a veil over her arches and toes, a few stray shots feeding into a mess on the floor. What’s the fun without a little bit of evidence?

“It’s like human juices!” The remnants of seed clung heavily, webbing on her wagging foot and excess dripping a thin river down the sole, trailing like streaks of paint, making the curious finger lapping up the residue afterwards like the paintbrush.

A probing tongue licked the salty batter, scooping up the sample in a single flick, “Uuu! It’s like cream! Salty cream! I want more cream! More Cream!”

Seth lurched backwards as if Aqua was a sharp dagger pointed straight at them, the inevitability of their consciousness swarming together in an instant; all the confusion, the taboo, the sensibility, breaking in at once, “A-Aqua!! That is — This is — I don’t even know where to begin! It’s absolutely — You’re a kid! This isn’t something kids do, Aqua!!” Seth desperately tried to explain, only now suddenly having a stroke of legitimate sense coursing through them. Part of them wondered if it was them attempting to convince Aqua this was wrong, or convincing themself. But that was just the fact that latched onto them the most; they could’ve come up with hundreds, thousands of other reasons, nearly a book’s worth. 

“This isn’t something that.. We’re supposed to do. N-Not really, I mean.” Who was that hypothetical “we”? Seth and Aqua? Flowers in general? Even Seth pondered this. And Seth hated that.

“It’s… Not?” 

“No! Absolutely not, Aqua!!”

“So… It’s bad?”

“W-Well… Yes. Essentially.”

“But if it’s bad, why are you staring so much??” The distance between them started to get reduced to a sliver, Aqua’s breathing catching up with theirs as the neutrality of her face flickered into something dangerous, a warning. Each movement felt like it was strangling Seth’s heart further, riding it up into the corner of a cage.

“Does Seth think Aqua is pretty?” The question formed from practically nothing. Prying eyes clutched around the view of Aqua straddling Seth’s lap, the weight of her rear pressing into their stiff sex, already on the verge of its second wind.

Seth gasped, hands clenching around an imaginary force that felt more like an attempt to anchor themself to something, anything, or even to serve as a distraction from the tightness teasing them from underneath, a hair away from breaching either of their innocence in one instantaneous moment.

“A-Aqua… Please… Please don’t ask me that right now.” A harsh plea soiled by hypocritical lips, unable to deny what their body would already answer: eyes already catching fluttering glimpses of her nudity; her cutesy curves and pert nipples and her trivial cock pinned uselessly onto Seth’s stomach, stimulating another ache that ushered their dick closer to her tepidity.

“Say that Aqua’s pretty!!” Aqua’s hips rolled back into her only advantage in this “argument”, her rim threatening Seth physically and mentally as it clutched around their head in a desperate vice.

Seth’s gasps elevated to a high-strung whimper, Aqua briefly inching herself a smidge lower as if testing Seth’s fortitude and patience in one motion.

“A-Aqua, stop!! Why are you being so dense?!” They would argue, but they wouldn’t bite. They wouldn’t place her hands on her or even deny her the opportunity to go further.

“Y-You’re pretty, Aqua!! You’re — You’re really really pretty… N-Now, please, for the love of Sun, just… stop!”

“Aww… You admit it…? That’s no fun…” Both of their breaths tangled into a collective hitch, Aqua’s warmth flooding the lingering rest of Seth’s groin as she hilted herself to the brim while carelessly grinding her hips into Seth’s crotch, relishing each sensation, each throb as she felt Seth’s cock upright and rigid, grinding up and down her stuffed cunt.

“T-This is fun! This is fun!! Seth’s girl parts feel good... a-and big!” Part of Aqua’s innate callowness was cut through by weighted pants, her own arousal leaking through between her words and the tingly awareness in her cocklet, varnishing the skin beneath her in a thick trail of kiddy goo.

“T-They’re not girl parts… J-Just call it a cock…” That’s the first thought Seth had. Not about the unbearable tightness currently suffocating them, nor the fifty other either immoral or questionable things that have happened just this past hour alone, but it was about correcting Aqua about… genitals. Real classy, Seth.

Aqua's momentum was stunted for a moment, her face distorting into another haze of confusion, “A… cock? But if Seth has a cock then what do I have?! Because if Seth has Seth parts and I have girl parts…”

“Y-You have a… a pussy… That’s what the thing, well, girls have is called and… You are a girl, Aqua, so…” Seth admitted, not finding it in them to tell Aqua the “truth”. But, maybe, disobeying logic just to keep Aqua smiling was enough reason for Seth to do so.

“Cock! Pussy! Seth’s cock feels really good in my pussy!!” She shouted to the top of the castle and back, the thrill of someone hearing shooting straight to Seth’s sheathed sex and an equal opportunity for Aqua to threaten near separation of their entwined bodies, only to ram herself back down in a single, heated slam.

“Good, good, good!!” She sang, snapping her hips into Seth’s skin with each word, accentuated with the distinct plaps of skin hitting against skin.

Plap plap plap — The charged atmosphere began to get drowned in the two’s eager companionship, Aqua bobbing as she rode Seth feverishly, pressing their back into the cold floor, her chest promptly flaunting out with a gentle, albeit minuscule, sway, the recoil tunneling down her ass to her thighs with frail ripples emerging across the sea of her skin with each clash.

The juvenile tension swallowed Seth in one, each detachment pulling another buckle from their hips upright in a subconscious attempt to spur Aqua’s walls back onto them, only to be granted it a few seconds later, clutching their breath at the surge of Aqua’s pussy stretching around them, a jointed spasm leaving them both quivering; a telltale sign to both of their inevitable crests.

“U-Uee hee hee… F-Fireworks! Fireworks!! I-I feel lots of funny fireworks in my stomach, Seth!” Seth felt her impatience, desperate, hips clapping into skin once more, not out of care for the person below her, but almost as a toy for her own pleasure, slamming in and out, in and out. A beat of silence; a beat of blank space never lingering, immediately – and selfishly – devoured by the sound of Aqua’s enthusiasm.

Seth searched for a physical thing to latch onto, yearning hands curving around Aqua’s waist and steadily lodging herself down into them with one last spasm of finality, a few gentle thrusts slotting their cock into that spot hidden away that made her unravel.

Thin strands of clear arousal soaked into Seth’s torso as Aqua’s insides fluttered with the highest squeal of that afternoon, the last handful of her weak-willed thrusts chasing after the peak of her climax, followed by a twitch, then followed with another spurt of her seed clinging to the fabric.

Clutched eyelids prefaced the hot, needy strips of Seth’s spill flooding inside Aqua not long after, marking her deeper and deeper with each buck, every rut and thrust, and her getting impossibly tighter and tighter shot after shot, edging their climax for a hazy period of time.

Aqua’s stuffed entrance seeped parts of Seth onto the tile floor, remnants of their sin peering beneath the intersection of their thighs and Seth’s cock, which was still aching and wringing out the last bit of their load, most of which was now surrendered to the floor. 

“U-Uuu… Hot and sticky…” Aqua flinched at the fleeting contact of Seth’s absence, watching as if it was a spectacle, the accumulation of their prolonged peak pouring out in a sticky mesh, chunks of their semen squeezing past Aqua’s used rim with a wet ‘pop’, a good bit of it continuing to trail down her thighs in a viscous aftermath. “Look, look Seth!! I’m filled with the salty cream now!! Salty cream game is my favorite game!”

Seth finally allowed themself to rest, a compulsive half-relieved, half-baffled laugh burning through a small part of their nerves to refurbish a bit of normalcy, “Okay, okay! Calm down… I-It is a pretty fun game, alright, b-but… No telling the others about this!!”

“No… telling the others? Not even Yellow?”

“E-Especially Yellow!!”

Aqua stilled, the foggy tint of a frown overwhelming her, “Oh… Okay…” The confession made the guilt swell in Seth’s heart like a plague, unable to shake off the unease in the stark contrast.

“But… I didn’t say that we couldn’t play this game again in our own time…” They settled, unable to deal with the new surge of guilt that made glancing in Aqua’s direction feel like downing a vial of poison, but there was a new sense of comfort in it then before.

“Uuu…? We can?! Yay!! Seth is the bestest friend ever!!” Aqua leaned back into Seth, their bodies tracing each other once more as Seth found the leeway to greet Aqua directly, that very same flicker of passion igniting beneath raven bangs,

“Again, again!!”