Breed.
He couldn't hold himself back, couldn't keep it contained anymore. Cadance had done something to him, done something to both of them. The fire burning in his loins was uncontrollable, the urge to sink himself as deep inside Rainbow's spasming quim as physically possible and never pull it out.
Breed.
He knew it was uncontrollable because he'd done it four times already and still couldn't stop. His hands were closed around Rainbow's throat, the bright-eyed, flat-chested whore staring up at him, red-faced and gasping. He squeezed tighter as he slammed himself back inside, her belly swollen and bloated with cum. Her legs locked tighter around his slender waist, resting on his wide hips as her hands smashed at the sand beneath him.
Breed.
He was going to kill Cadance when he got his hands on her. He was gonna wring the life from her gorgeous neck for making him and Rainbow into nothing more than sweat-soaked fuck zombies for the last hour and a half. Rainbow crowed loudly, eyes rolling back, tongue lolling from her mouth, entire body locking up and trembling. Confusion slid onto Dusk's face briefly, eyes drifting down to realise that he was cumming again.
He couldn't feel it anymore. Not in a sense of exhaustion or tiredness. He literally couldn't feel the pleasure of orgasm, couldn't feel the relief or release of emptying his massive balls into his azure slut's hot cunt. He gritted his teeth angrily, his psyche demanding that he go again, desperately needing to feel the pleasure of cumming again.
This was Cadance's fault. She'd screwed with his head, screwed with his cock, made him like he was now. As soon as he was finished with this, whenever this wore off, he was gonna find her, and kill her.
Breed her.
Dusk felt a pang of pleasure spark through his cock, the first he'd had in a while. His eyes widened in shock, latching onto the feeling like a man dying of thirst would to a leaking faucet. That thought had triggered something, there was a reaction. Being the scientist he was, he needed to prove his hypothesis. He focused on Rainbow, ears perked and locked onto the sound of thick, hot cum sloshing about her tight insides, and waited.
Moments went by... and nothing. No pleasure, no surge, no build towards relief. He even picked up the pace, the sound of his sweat and cum soaked groin splattering against Rainbow's bringing no boon nor boost to his state. Gritting his teeth with annoyance once again, he moved onto the next part of the test.
He supplanted Cadance as the one beneath him, his mind's eye conjuring up those enormous pink breasts, those plump, cock-sucking lips, and that gorgeous voice moaning and begging him to fill her whore womb up to the-
He couldn't even finish the thought before he exploded. His cock fired like a cannon at the merest hint of the idea of impregnating Cadance. The anger that swirled up around him was soon drowned out by the rapturous relief of a violent, sweaty, and groaning orgasm.
He had to pull out of Rainbow at this point or else he'd risk hurting her. Her belly looked almost bigger than she did, heaving as if she were ready to give birth to several dragons at this point. Cum jetted out of her sore cunt, her voice crying out above the sounds of the resort as the tension in her belly began to release. Soaking his crotch, staining him with the sight and scent of cum, Dusk leaned backwards, dropping onto his haunches and vigorously stroking his cock. He continued to blow more and more, feeling his magic reserves kick in once his biological ones failed to keep that orgasm going, keep the cum spraying.
Rainbow was painted entirely white at this point, her stomach down to half its gargantuan size as she lay in a lake of cum that was still being added to. Dusk's jaw began to ache, his arm hurting from the exertion of such vigorous masturbation, desperate to empty himself. His hands appeared as if he were wearing white gloves, his entire length slopped and slathered in glue-thick cum.
Breed Cadance.
He shouldn't have tempted himself with a second test. He knew the first result was conclusive, and pushing himself further would only be a mistake. A mistake that felt beautiful to make, as his orgasm renewed for a second time. Biting down harder on his jaw, his desperation rose to incomprehensible levels. His cock ached, his heart pounded, and his rational mind went out the window. With Rainbow back below the red zone, he made a selfish and disgusting decision.
He rammed himself back her cum-slopped cunt, locking his mouth onto hers and being assaulted with the taste of her tongue and his own cum. With a wave of his hand, he killed off the contraceptive spell that he'd placed on all of his fucktoys, ramming his prick past her cervix and into the deepest reaches of her flooded cavern.
"Gonna breed you..." he snarled into Rainbow's mouth, lashing his tongue against hers.
He felt her inner walls clamp down around his monster in response, having clearly been put under the same spell he had with the same desperation for procreation.
"Gonna fill this pussy up and give you my foals..." he growled quietly.
"Y-Yes..." Rainbow begged, her glazed over eyes pleading to be knocked up. "Give me so many... everything you've got."
He kissed her again, the salty-sweet taste in her mouth only arousing him even more. The cum between them stuck to their skin, smearing and rubbing as they grinded and gyrated against one another. The heat of their copulation was unimaginable, sweat pouring from their bodies and mixing with the debacherous cocktail of semen, girlcum, and whatever else they'd been rolling around in that clung to their bodies.
Rape and breed Cadance.
He exploded inside Rainbow again, cumming for what had to be the sixth or seventh time in the past hour and a half, splattering her womb once again with an unholy amount of seed. He felt her bloat against his stomach again, soft and supple skin layered above trained and powerful muscle filling up like a balloon for the third time.
He couldn't think of anything else except Cadance and the wild fantasies his mind cooked up of how her gorgeous pussy must feel. He'd seen it once or twice, accidentally during his youth, and it had inspired a love of vagina the likes of which he couldn't put into words. Smooth, soft, and tight-looking as it was, he'd never seen a cunt that came close to comparing, and he'd ploughed his way through more than a few in his lifetime.
Not Rarity, not Rainbow, not Starlight, not Sunset, not anyone he'd ever had a roll with had a pussy that felt as good as Cadance's looked. And now he was gonna take it. He was gonna march right over to the little meeting spot she'd arranged for the two of them and make that stacked, divine, whore of a goddess prostrate herself by taking every inch of his throbbing purple cock and carrying as many foals as he fucked into her to their due date.
He ripped himself out of Rainbow once again, a trail of cum connecting the tip of his cock to her quivering quim, the weight of it soon snapping it and causing it to plummet into the pool with an audible splash. He was done for the moment, it seemed... his mind clearing moment by moment, and seemingly the same happening to Rainbow as the two of them sat still and processed exactly what had just transpired between the two of them.
"Fuuuuck yesssss..." Rainbow moaned, slamming her head onto the ground beneath her and staring up at the sky with a satisfied, satiated, and supremely impressed grin.
Her hands rubbed at her cum-soaked body, her entire being pulsing with the pleasure of being so-thoroughly bred by such a powerful stallion. A dumb, brainless grin remained stuck on her face as wave after wave of residual, orgasmic bliss continued to roll over her like the beach sand at the waterfront.
Dusk had to admit himself... on a primal, basic, and evolutionary level, that had been one of the most satisfying orgasms he'd ever had in his entire life. Whatever Cadance had loaded him up with, whatever magic she'd poured into his core to get him in that mood, had made pumping Rainbow full of his seed more satisfying than it had ever been. He'd done it over a thousand times over the years they'd known each other, but now of all times, in this beautiful moment, it had never felt better.
Fucking one of his best friends and breeding her tight little cunt like prized livestock for no other reason than he wanted to felt better than any sex he'd ever had before in his entire life. Licking his dry lips, he leaned forward, kissing Rainbow once again and cuddling up to her body. His hand rubbed against her flat, toned stomach, the garden where his seed would soon grow strong and plentiful. A wave of arrogance and contentedness washed over him at that thought, the idea of owning Rainbow and her womb as his own personal plot of land being about as appealing as the thought of getting her pregnant again.
With a heavy sigh, he pushed himself away from her twitching, soaking form, watching her blow and oh-so arrogant kiss as he began to dress himself as their rapturous encounter came to a sweet end. As much as he'd love to sit around and fuck the day away with her, he had a meeting with a certain pink princess to attend, and one that he certainly wasn't eager to miss.