A Princess in Heat

by dzamie

Rating: mature
Tags: Sex, Twilight Sparkle, My Little Pony: Friendship is Magic, Porn, Spike
Length: 2493

Twilight wasn't supposed to show signs of being in heat. Luckily, Spike is there to help her out!

Twilight is a well-learned mage. She knows spells to keep the symptoms of being in heat in check, so that nopony even knows unless they already know her internal clock.
...of course, such a spell only works if she actually remembers to cast it. Ideally before hearing from petitioners in her court.
Good thing she can trust Spike to be her Number One Assistant in more than just library organization.

Written for a sort of Smaugust/NaNoWriMo combination thing. Today's prompt was "Seasonal," so Twilight is, uh, "in season."

Contains: dragon/pony sex, sex with a condom, doggystyle (ponystyle?), blowjob, accidental exhibitionism?

Published 2021-08-13 04:10:00 UTC
Last updated 2021-08-13 04:10:00 UTC

The Chapter Where Sex Happens

Spike sat against Twilight’s royal throne, steadily going through a stack of the latest Power Ponies issues. The Mane-iac had gone through a gritty redesign in the past years, but the most recent run had her back as wacky and over-the-top, with plenty of puns. He turned the page and came face-to-face with a half-page panel of Hum Drum giving the Power Ponies a rousing speech about friendship to snap them out of their manespray-induced haze. The studio had reimagined him, in this run, as a dragon from the start, a change which was very well-received in Dragon Town, and with Mina especially.

Another petitioner left the court satisfied, and another took her place to complain about his local pegasus weather team’s decisions, and how things were never like this back in Celestia’s rule. It reminded Spike of the angry rants he heard from some pony comics fans at Hum Drum’s redesign - pandering to the royal court, objectively worse, and clearly not worth giving it a shot to see if it turns out well. The dragon let out a quiet chuckle as he recalled Mina laying into them about the origin of the character having a splotchy coat - a disdained feature in its time - and how he was always made to represent the underrepresented, including gaining a batpony father for a few years. Spike took a deep breath and sighed, only half paying attention to the book as his thoughts drifted to the last time the two dragons had met up. Spike’s third molt had been VERY good for him, leaving him sleek yet strong, and Mina was a superb teacher on using his tongue for things other than talking about the Power Ponies and Daredragon.

On his next breath, he noticed a curious smell, and sniffed again, successfully confirming its existence. It was a scent he was familiar with, though Twilight had been consistent in preventing it almost since Celestia and Luna had stepped down. The dragon shifted around and tapped the side of Twilight’s throne to get her attention. “Hey, are you doing alright? I think you forgot a spell this morning.”

Twilight shifted in her seat. “One moment, please, mister Mudgeon. I must consult with my advisor on this matter.” This seemed to satisfy the grouchy pony, so Twilight leaned over to speak more softly. “I did, just noticed an hour ago. I think I can pull through another two...”

Spike shook his head. “Twilight, you’re already blushing,” he said. Twilight immediately flushed even redder, to the dragon’s mild amusement.

The alicorn shook her head, successfully getting rid of most of her blush, but Spike could still smell her arousal growing. So, when Twilight announced that she would look into the stallion’s complaint, but court was taking a recess, he smiled, satisfied that he could still help her keep an eye on her well-being. Once the pony had left, she dismissed the guards and rose from her seat. From his own position, Spike got a clear view of her soaked pussy, dripping with a carnal need. “Alright, let’s do this out of the throne room, I think,” she said, walking to the back door of the room and jerking her head to ask Spike to follow her.

The dragon got up and stretched, standing a little higher than the princess. “Not like you to forget a checklist item, Twi,” he remarked as he half-jogged towards her, “especially with Raven to help out.”

“W-well, I think this is a little personal to ask Raven to schedule,” Twilight replied, the blush returning.

“With respect, Your Highness, you did put me in charge of overseeing the upkeep of your throne room furnishings,” the light-coated unicorn interjected. In her telekinetic aura, she held the cushion Twilight had just been sitting on. “So, in a way, this matter already concerns me. And if you decide to let me help you, may I suggest leaving as a simple reminder around projected estrus days? That way, you may keep your spellcasting private.” She looked dispassionately at the ruined seat. “Also, presuming you don’t want to keep sitting on this, would you prefer it cleaned or replaced?”

“Uh... cleaned if you can do so discreetly?” Twilight said with a nervous grin. “I’ll, uh, I’ll have to get back to you on that other part.” She quickly stepped through her bedroom door and tugged Spike to follow with her magic; he let her lead him inside as well.

The dragon closed the door behind him and leaned against it. “So, you want me to keep watch on the door while you do your spell?”

“No, Spike, this is a delicate spell around a delicate area. I need more concentration than I have to cast it.” She looked at her friend’s smug smile. “Yes, fine, you were right, there was no way I could’ve lasted half an hour more, let alone until the end.”

Spike pumped his fist. “Score one for the Number One Assistant. So, just to make sure we’re on the same page, what are you asking me to do, exactly?”

Twilight turned away from him and flicked her tail, exposing her puffy, purple pussy to him. “Do I really need to say it?”

The dragon grinned. He could stand to be a little shit from time to time. “Hey, don’t blame me. You’re the one who impressed on me the importance of enthusiastic consent.”

“Fuck me, Spike!” the alicorn said, then covered her mouth with a hoof. “That was louder than I intended. Please fuck me until I calm down?”

“Of course, Twilight,” Spike said as he stepped forward. His shaft had started poking free of the slit in his scales, and was only growing harder as he approached her glorious, lavender rear. But, all things in due time. Rather than just getting to it, he instead dropped to his knees behind her.

“Also, you could have asked if I wanted to have sex, letting me say yes without... tha- eep!” Twilight’s voice suddenly cut off as Spike clapped his claws down on her flanks, then slowly spread her hindquarters.

“I know,” he said, “but that was REALLY hot. So thanks.” The dragon licked his muzzle, then pushed his snout into her snatch, sliding the end of his muzzle between those puffy, purple lips. His long, forked tongue snaked out to rub against the walls of her needy pussy, exploring a bit before he began to methodically lick up and down. For reasons Spike never understood (no matter how many times Twilight tried to explain), ponies always tasted good while in season. Twilight, for instance, tasted like a home-grown tanzanite gem. Rarity was an opal, and Pinkie Pie, naturally, tasted like cupcakes. But in the moment, Spike had a particular craving for tanzanite, and so his tongue pressed deep into the princess, coaxing out a nice, long moan. Occasionally, he lowered his muzzle a bit to play with her clit, teasing it with his tongue and giving it a kiss before returning to the rest of Twilight’s entrance.

After a couple minutes, and a few strokes of his cock to make sure he was ready, too, Spike drew back, licked his muzzle clean of her slimy juices, and stood. In one clawed hand, he held his firm shaft and idly ran his fingers against its ridges - “ribbed for her pleasure,” Mina had called it. In the other, he brushed Twilight’s dark purple tail aside to help him line himself up. “Ready, Twi?”

“Plea- uh, actually, one moment.” Her long horn glowed briefly, and Spike felt something slightly snug on his cock. When he looked down, he found it had been wrapped perfectly in a condom, somehow even getting between his claws and his cock. “Consent, foreplay, condom... the only thing left on that list is sex!”

“I think what I did was a bit heavier than usual foreplay,” Spike said, carefully pressing the tip of his member into her wet folds, “but I’m not complaining.” As he slowly eased his hips forward, the heat of her snatch engulfed his cock, feeling much more intense than when he was eating her out. The dragon groaned as more and more of his length vanished into her body. He put his other hand back on her flank, and felt her shudder at the touch.

With two handfuls of soft pony ass, Spike slowly drew back, then pressed back in. Twilight’s wet pussy easily let him slide in and out, and so he got into a slow, steady rhythm. Wet squishing noises filled the quiet air, punctuated with muffled thumps, as his scaly hips met her furry ones, and the panting from both dragon and pony. “H-harder,” Twilight breathed out, and Spike eagerly complied as, with a light growl, he gripped her flanks tighter and picked up the pace. Twilight’s inner walls, slippery as they were, nonetheless squeezed in on his shaft, trying to hold onto each ridge as he pounded away.

The air felt heavy as the combined scent of their arousal kept the pair’s drive up. As he watched the back of Twilight’s head, Spike noted that this was one of the few times she let her mane deviate from its usual neat style. It was a minor thing, but one that further solidified the intense, personal, trusting nature of their sex. He was drawn back out of his thoughts as Twilight’s moans started growing louder, until she pressed her muzzle against her foreleg to muffle herself. A few moments later, her horn flashed, and Spike felt her magic press against his back. He pulled her hips towards him as he thrust deep inside, and was rewarded with her inner walls spastically squeezing against his length, while the alicorn’s body shuddered in his hands. When Twilight finally relaxed once more, her breaths came slow and heavy; Spike drew free of her depths once her magic let him up.

He took a couple steps to sit on Twilight’s bed, and the alicorn almost immediately fell against him. As he stroked his claws through her fur, she hummed happily, and looked up at him, her rather frayed mane falling haphazardly over her neck and face. “Magic claws...”

“Don’t you know it,” Spike said, proudly. “Uh, I’ll let you get back to court, and I’ll join you once I’ve... dealt with myself in the bathroom.”

Twilight pouted. She drew back, turned to face him, and sat on the floor. Her magic pushed his legs apart, and she rested her head on one thigh, cheek against his condom. “Oh, no you don’t. I haven’t checked off you climaxing from my list!”

Spike scratched his head. “Is that... okay, I know it’s YOU, but do you really have a checklist for sex? Also, both partners cumming is a porn trope.”

With a flash of magic, a scroll popped into existence. Spike caught it, unrolled it, and had a look, while another bit of magic pulled the condom off of him. “Sex (Spike edition),” he read aloud, “consent, foreplay, condom... wow, you really do have a-”

Whatever Spike was about to say next was cut off as something warm and wet engulfed his tip, and dipped about halfway down his member. Spike tossed the checklist to the side, on the bed, far too distracted by the purple-furred lips wrapped around his cock. Twilight looked up at him, then tried to go further down on him, but backed off when she gagged. Spike grinned. “That’s actually flattering in a way,” he said, but the alicorn fluffed her wings and looked determined at his hard cock.

Once again, she wrapped her mouth around it, but this time bobbed up and down on the top half. Her forehooves came up and pressed against his base. The pleasure at the tip of his shaft felt like it spread all down his member, and Spike had to put a hand behind himself to keep steady. Twilight smiled at the dragon’s display, and lit up her horn. Waves of gentle magical pressure ran up and down his entire length, causing his jaws to go slack and his long, forked tongue to hang out of his mouth. He leaned back, watching her keep bobbing up and down and sucking hungrily on his cock, slightly obscured by his own scaly chest as it rose and fell with his heavy breaths.

The dragon let out a long moan as he felt a familiar pressure build in his loins. He reached a hand down, finding the back of Twilight’s head, and started to help move her back and forth on his cock. “Get ready...” he muttered to her. She hummed an “mm-hm,” and a few seconds later, Spike felt his climax wash over him. He tensed over and over again as he shot thick, hot ropes of dragon seed right down Twilight’s throat, and still she lovingly lapped at his shaft, drawing out every last bit of cum he’d give her and swallowing it all down. Only when he had let go of her head and no more seemed to come up did the purple pony draw back from between his legs.

Spike fell back onto the bed, panting hard. He soon saw Twilight’s face as she leaned over on the bed as well. Her head drew closer, and the pony’s muzzle met the dragon’s for a kiss before she withdrew once more. When he sat up, her horn was lit and her eyes were closed in concentration. After a few seconds, she opened them and looked at him. Her horn flickered, but continued casting, and she hit him with a bit of magic. Immediately, Spike felt cleaner.

“Okay, I’m going to reconvene the court,” Twilight said. “If you’re up for it, I’d love for you to join again, once, y’know, ‘Little Spike’ has gone back into hiding.” Spike glanced down; his cock was slowly softening after his orgasm, but it still had a fair bit before it once again vanished under his scales.

“Of course! Besides, I’ve still got a few issues of Power Ponies to read! Oh, that spell feels like cheating, by the way,” he remarked.

Twilight smirked. “In that case, we’ll take a shower after my princess duties are over. Together. As long as it needs to be.”

“Not really helping me become presentable in public again with those thoughts!” Spike called after her as she left the bedroom. Still, he supposed he wouldn’t mind if Twilight forgot her anti-estrus spell every so often...

Author's Note

Sometimes you just wanna write about a dragon fucking his close lifelong friend, and your prompt-a-day challenge gives you a good excuse.
I realized I don't really see condoms often in erotica, and figured that Twilight would definitely be the kind to 1) use them just in case, and 2) put them on a checklist.

Spike gets all the mares and dragonesses :P