Author's Note

This is intended as an idea dump of sorts for my own story concepts. Please do not solicit your own ideas.

Prompt: Epilogue ^2 to Hybrid. Starlight is now 5 ½ months pregnant, relaxing in Twilight’s castle. She’s pregnant with multiples, but they can’t quite tell how many just yet. She’s reading a report given to her by Twilight that’s an analysis on her reproductive capabilities. Her and Spike’s frenzied, suultigri-fueled romp made them quite potent, and the doctors surmise that Starlight’s current pregnancy is on the low end of her capabilities. Future pregnancies will likely result in even higher sets of multiples, potentially with no upward limit. Spike comes in to dote on her, asking if she needs anything. She comments that she’s hungry, but before Spike can go off and get her something, she pins him with magic, spreads his legs, and starts licking his sheath to coax out his dick. Before long he’s at full mast and putty in her hooves, moaning as he pregnant mate gives him a sudden blowjob. He feels a tingling in his balls as Starlight pushes his seed production into overdrive, each one swelling more and more and more. Before long he’s cumming, and she gulps it all down without hesitation. Right as Spike erupts, Twilight walks in. She panics and slams the door, blushing furiously. Neither of them stop what they’re doing.

Contains: Feral, Hyper Pregnancy, Blowjobs, Impossibly Long Orgasm, Impossibly Sized Balls, Cumflation.

I Doubt They'll Be Endangered

Starlight lounged in her and Spike’s new room, eating huge clawfuls of assorted gems from an enormous bowl beside her. Twilight had been gracious enough to give them a larger room in the castle thanks to their bigger size, along with a giant king-sized bed to go with it. In Starlight’s magic was a medical report given to her by the mailmare.

...Diagnostics of reproductive system in female subject suggests that ovulation rate of new mammalian species is considerably higher than any other known mammal on record. Future heat cycles are anticipated to release a minimum of a dozen ovum into the uterus, with numbers below this extremely unlikely. Test results of male subject indicate sperm count is twenty times higher than typically seen in an adult stallion, with no evident deformations of spermatozoa spotted at this time. It is unclear what the procreative upward limit is of these two, although speculations are that this extreme abnormality will not extend to their offspring.

Second trimester fetal scans indicate gestative characteristics in line with a live birth. Further supporting this is the beginnings of maturation in female’s mammary glands. Female’s current pregnancy suggests that her extreme ovulation was present at time of conception, albeit at the lowest possible threshold. Whether this was caused by the transformative magic still taking hold or another factor is unclear. This abnormal potential could possibly be caused by draconic traits, the magical exposure, or some other factor. The knowledge exchange program with the now-amenable dragons is still ongoing, so records on dragon biology are still incomplete at this time.

However, it IS known that a dragoness’ first clutch of eggs is typically the smallest. The more clutches a dragoness lays in their lifetime, the more eggs they will produce. Based off initial test results, it’s anticipated the female subject’s future pregnancies will follow this pattern...

Starlight tossed the report away. She yawned, her eyes drifting down to her already-huge belly. Full, taut, and firm, the filled-out bulge of her womb felt like a hard medicine ball in her gut. And what a medicine ball it was! Not even 5 ½ months in, and she already was four times bigger than any pregnant mare she’d ever seen!

“Would it have killed them to used my actual name?” Starlight stuffed her mouth full with more gemstones, a snort of flame escaping her nostrils. “Sherioushly… treating me like shome kinda ‘inea ‘ig… what th’ eck...”

Part of her pointed out that she probably shouldn’t have expected much less from a team of detached scientists ruled over by cold, hard logic. Another part of her told the first to shut the fuck up. She was still a living, thinking being, and if anypony ever treated her like that to her face, she’d rip them a new asshole.

Starlight stretched herself out to her full length. It was a lazy Sunday, the warm summer breeze wafting in from one of the nearby window. She could smell a telltale, cloying sweetness wafting in, a predictable byproduct of this time of year. Even her body was reacting on a lesser level, like muted, sympathetic echoes of everyone else’s estrus. Apparently, even being pregnant didn’t totally remove her symptoms...

“Mmrrhh…” Starlight didn’t even realize she’d been doing it the whole time she’d been reading. While one claw had been grabbing fistfuls of gems, the other had wandered back to her sticky nethers. She’d been playing with her edges of her labia for a while now, her serpentine tail flicking around.

Starlight’s mind wandered while she pleasured herself. She couldn’t help but be turned on by the thought of what the coming years would bring. If the report was right, what she was experiencing right now was nothing compared to even what her next pregnancy would be—

The door opened. Spike trotted in with a few spellbooks on his back, whistling to himself.

“Hey, these were the only ones I could find.” He floated one of the books off his back in his emerald magic. “Heh, magic is awesome… Were these the ones you were talking about?”

A greedy look crept into Starlight’s gaze. She finished off the last of the gemstones, then for good measure, the bowl, as well. “Yeah… Thanks, Spike.”

Spike hesitated. “Something wrong?”

“No, no…” Starlight slipped another digit in her dampening slit, her voice low and husky. “I’m just kinda hungry for something more. Do you mind?”

Spike smiled. “Of course not! What are you craving?”

Starlight licked her lips. “Your dick.”

Spike was bowled over by a wall of telekinetic force. He yelped as he found himself abruptly pinned on his back, laying spread eagle as his arms and legs were held by magical bindings.

“G-Glimmy?!” Spike wiggled and squirmed.

Starlight got to her hooves with some effort. Purring, she stepped off the bed and approached her mate, eyes glued to his crotch. Her laden belly swayed gently with her movements, towering, prominent, and proud.

“You said you didn’t mind.” Starlight’s blush grew as she closed, smelling him. His sheath was barely able to contain his pride, his hefty nuts the size of apples…

Starlight frowned. There was no way apples were going to satisfy her! Her horn flared again, and Spike gasped as a tingling enveloped his scrotum. His pulse rose as he felt his balls bloating, churning and gurgling as they sloshed with fresh seed.

“Starlight…” Spike was getting hard already. “I s-swear… if you’re t-teasing me again—”

He was cut off by her licking his sheath. He moaned long and loud as her wet tongue caressed him, his length slipping free. His cock swelled with every beat of his heart, bigger and longer as it slipped into Starlight’s mouth. She murred and wrapped her lips around it, relishing how it crept farther and farther into her throat.

The door opened again.

“Spike, you said you wanted Starswirlian Excerpts, Volume Two!” Twilight held up a book in her magic. “You grabbed Volume F—”

She stopped dead.

“Th-Thanks, Twiiiiii—oh my god…” Spike grit his teeth as his growing length popped down Starlight’s throat. “Just p-put ‘em over…”

“EEP! Twilight vanished in a magenta flash.

Starlight growled. Without stopping, she slammed the door with magic and locked it. She then pivoted around so that she was straddling Spike, swinging her legs over his body. Even while standing, her pregnant belly brushed against his chest.

“Fuck…” Spike clutched her maternity, rubbing and peppering it with kisses. He could feel the light thwumps from his children, shifting and stirring. The smell of her sex washed over him, heady and intoxicating. His balls were now the size of coconuts, their burgeoning size spreading his legs wide. Starlight’s tight throat was squeezing him almost as hard as her cunny, slick, damp, and hot. It felt even tighter as his cock grew thicker.

Starlight sucked Spike harder. She could feel it bulging, twitching and pulsing. Soon, he’d impregnate her again with it. Soon, he’d make her even more gravid with even more life. She was going to have to start a hoard so she’d be able to support THISpregnancy—she couldn’t wait to see what the next one would bring. The thought sparked a NEED deep within her, an aching clench that made her wink.

Spike gasped. A bubble of air was rising in his chest, light and heady. He fought the urge to thrust his hips as he grasped her, feeling his claws along her scales and through her plush fur. Pre flowed from his length in greater spurts, his tufted tail lashing back and forth. His fat knot was expanding, the bulbous sides swollen and thick, and Starlight gulped it down in a flash and swallowed, massaging his shaft with her velvety gullet. He knew he wasn’t going to last much longer, the coiled spring tightening past the point of no return. He yelled Starlight’s name as the tension boiled over, his watermelon-sized nuts contracting.

Starlight knew it was coming. She could feel the way his cock was twitching. She formed a tight seal and sucked as hard as she could, pouring one last burst into his glowing balls. His musky balls grew out well past his knees, and not a second later—

Spike erupted. Jet after jet of EXTREMELY virile cum pumped into Starlight stomach, Filling her belly with delicious, addictive heat. Spike’s eyes rolled in the back of his head as he lost it, facefucking his mate without pause or restraint, flying high as his mind fogged over. Starlight just egged him on, milking him again and again, gulping and tugging on his scrotum’s stretchy skin.

A minute later, he was still going.

Five minutes later, and he was still going.

TEN minutes later, and he was still going, his balls barely shrunk at all! Yet Starlight was still ravenous, hungry for all he had to give. Her gut was hanging lower and lower with every gulp, yet if anything, all she felt was hungrier...

Unseen by both of them, a barely noticeable shimmer flickered in the corner of the room. The mirage-like disturbance went unnoticed for the most part, it’s glints of lavender and totally inconspicuous smell...