Twilight Sparkle and the Terribly Inconvenient Boner.

Twilight Sparkle woke up with a boner.

Again.

“Wonder if I'll ever get used to this.” Twilight murmured- only to realize something a moment later.

She wasn't in her own bed.

Somehow, while she'd been asleep, she'd been taken from the tangle of her friends, and dropped in an even more spacious bed, set in the center of a large, marble-walled bedroom. Twilight's eyes flicked over the crests emblazoned on the bedboard, the rugs, the velvet wall hangings, and recognized the hearaldry immediately.

Canterlot.

Had she been teleported to Canterlot?

“Oh good, you're awake.” Said a familiar voice.

Twilight's face paled, and she pulled the sheets around her still-naked form, unsure of what bedroom etiquette for a Princess was. (There was a remarkable lack of scholarly discussion on the subject, after all).

Princess Celestia looked stunning, as always. She wore a long, classical-looking gown that swished about her ankles as she crossed the bedroom. The gown left her shoulders and arms bare. Twilight realized she was surprisingly pale, for a sun princess.

“Princess Celestia!” Twilight blurted. “What's going on?”

“Calm down,” Celestia smiled reassuringly as she sat at the edge of the bed. “I teleported you directly to my palace while you were sleeping. I figured it would make things...easier.”

“Oh! Uh. Right. Um. I just want you to know, it was laundry day, which is why I wasn't wearing my pajamas, and-”

Celestia smiled, and held up a gentle hand. “Relax, Twilight. It's nothing I haven't seen before.”

“Uh.” Twilight pulled her sheet tighter around herself. “Are you sure about that?”

“Absolutely. I know what you're going through.”

“You do?”

“I apologize I didn't get to you earlier. You, ah … surprised me.”

“I did?”

“I wasn't expecting things to happen so soon, but given your innate talents, well...I should have known better.”

“Known what better?”

“It's really quite simple. When you ascended to Princesshood, did you notice how you became slightly faster, like your friend Rainbow Dash? Or perhaps stronger, like Applejack?”

“Uh. A little?”

“Did you ever wonder why that was?”

“I thought it was the sudden influx of magical energy, sort of...refining my body a little, I guess?”

“You're not wrong, Twilight. But it's more than that. See, every Princess' magic is linked to her people. It's reflective, in its own way. It's
just that, sometimes, you wind up reflecting about half of the population ...”

Twilight took a moment to process the implications, and then gasped. “And that's why I have...this?” Twilight looked down to her sheet covered lap, and then back to Celestia. She did her best not to let her eyes linger on the neckline of that royal gown, even though Celestia was so close. “Does that mean all Princesses ...”

“Yes.”

“So you-”

“Yes.”

“And Luna-”

“Yes.”

“Even Cadance?”

“Yes.”

“But, she and my brother-”

“They get ... creative.”

“Oh.” Twilight said. And that, she realized, was the one thing that could stop her from growing any harder.

“Again, I should apologize. I should have told you what was coming beforehand- it's just a...stage of things. Eventually, you'll be able to...reflect whichever half of the population you'd like at will. What you're going through is perfectly natural, if ... not exactly common. You'll understand why it's not exactly something we talk about very often.”

“Okay?” Twilight pulled her legs to her chest and wrapped the sheet around herself like a protective cocoon. “That...actually makes a lot of sense, from a magical perspective.” She bit at her lower lip. “I'm sorry, I should've contacted you right away.”

“No, Twilight, I should be the one apologizing. I can only imagine what you went through.”

“Well,” Twilight thought back to a few hours earlier, and allowed herself a crooked grin. “It wasn't that bad.”

“Oh?”

“I mean, uh. Nothing! Nothing happened whatsoever.”

“Now now, Twilight, there's no need to be embarrassed. You and your friends are all consenting adults, presented with an...uncommon opportunity. There's nothing wrong with a little...curiosity.”

“Oh. Okay.” Twilight bit at her lower lip. “I ... I am pretty curious. It's the mark of a good academic.”

“I've noticed. If there's anything you need, any other questions, all you have to do is ask. I'll do anything to help you, Twilight.”

“Anything?”

“Of course.”

“So, uh. If, theoretically, I wanted to … compare … anatomy,” Twilight picked her words carefully, “you wouldn't mind?”

“I wouldn't mind.” Celestia stood, and her gown fell from her shoulders, as if under its own accord. Like the unveiling of an impossibly beautiful sculpture, the silken cloth dropped off of Celestia's body and pooled around her feet. “In fact, I was rather hoping you'd ask.”

Twilight gasped.

Nude, Princess Celestia was...perfect. Her pale skin was as flawless as marble, and the lines of her figure were more striking than any sculpture. Celestia stood taller than anyone Twilight had ever met, and every inch of her was in bounteous, generous proportion. She had the body of a goddess, and the bearing that showed she knew it, too. Twilight felt her mouth water as she took it all in: the multiculored mane of perfectly wavy hair, an ample bosom, pale pink nipples, invitingly curved thighs, lean legs …

And hanging between Celestia's legs was a long, thick cock.

Penis. Twilight corrected herself. The proper term is penis. She felt her cheeks go red anyway.

“You know, Twilight, nobody's seen me like this in at least a century. It's...refreshing, to let it all hang out.” Celestia stretched languidly, arcing her back. Twilight wrenched her gaze upwards- but she found herself lingering on Celestia's ample chest before she managed to look back to that benevolent, smiling face. “To be honest with you, Twilight, a lot of the time I'd prefer to go unclothed. Don't tell your friend Rarity, but mundane outfits just seem so...trivial, especially after the first few centuries.”

“Oh. That makes sense.” Twilight murmured, feeling her cheeks burn.

“There's no need to be embarrassed,” said Celestia. “This is perfectly natural.”

“So you're saying...” Twilight said.

“Like I said before, you can do anything you like.” Princess Celestia sank down onto a pile of pillows, displaying herself like a classical painting (albeit one with a certain unexpected addition). She met Twilight's eyes with a playful, half-lidded gaze. “Anything.”

“Really?” Twilight blurted, and felt her cheeks blush harder somehow. “Well. Um. It's only...uh. It's just an unprecedented opportunity.” Twilight scooted across the bed and bent down to her lap. With gentle, trembling fingers, Twilight began to explore Celestia's body. She leaned in for a closer look, and breathed deeply of her intoxicating scent. Magic, Twilight wondered, or perhaps pheromones? Or both? It was the sort of thing that warranted further investigation.

The Princess' cock (penis, Twilight corrected herself) was larger than Twilight's, which made sense, she decided, due to the the fact Celestia was taller anyway. Everything was where it should be- smooth, pale balls (scrotum, Twilight's academic side noted), and a light dusting of multicolored hair at the base. She wrapped her fingers around Celestia's thickening shaft, managing to touch her thumb to her fingertips.

Giving up any pretense of scientific study, Twilight parted her lips and took the cock into her mouth. The sound of Celestia's sudden breath almost made Twilight bolt back in fear, but Celestia just smiled her serene goddess' smile, and stroked Twilight's hair.

“Go ahead.”

With that final permission given, Twilight's apprehensions melted away, giving room for the rising tide of lust that threatened to consume her. She embraced the wanton desires, and opened her mouth wider to take more of Celestia's dick between her lips. She wiggled her tongue against the underside of Celestia's shaft, and then wrapped her fingers around the base.

Twilight began to bob up and down, eagerly worshipping Celestia with her mouth. She'd never sucked a dick before- though by the way Celestia smiled (and moaned), Twilight at least guessed she was doing something right. Twilight tried to mimic the way Pinkie had played with her earlier: licking, kissing, adoring every inch of that pale, throbbing shaft. She bobbed up and down for a bit, and then forced herself to pull back. Twilight kept both her hands on Celestia's shaft, despite eager hardness throbbing between her own legs.

She teased her Princess, her Goddess, as long as she could. But Twilight grew more and more impatient, finally pulling back off of Celestia's cock with a wet smack of her lips.

“Please. Celestia. Fuck me.” Twilight shivered as she heard the words pass her lips- lips that had been sucking the Princess off earlier.

Celestia smiled knowingly, looking like she usually did- though the lusty blush on her cheeks was new. “Are you sure, Twilight?”

“I've never been so sure of anything else in my entire life.”

“Good. Then lay down.”

A pale, gentle hand eased Twilight to her back on the bed. She watched in rapt attention as Celestia squeezed a large dollop of lube onto her hand, and then spread it over the surface of her large cock. Twilight trembled- even in her wildest, wettest dreams, she'd never thought she'd ever see Princess Celestia like this, naked and glorious, standing over her.

Twilight had never anticipated growing a dick, either- she briefly wondered if she should've been more imaginative.

Celestia's strong but delicate hands pushed Twilight's legs up and apart. Twilight wiggled her toes in the air in anticipation- and then gasped as she felt Celestia's cock push gently at her ass.

“Are you alright?” Celestia said, with concern in her voice and lust in her eyes. “I don't want to hurt you.”

“No, no,” Twilight breathed in deeper, trying to make herself relax. “Please. Fuck me. However you want. I need this.” Twilight clenched
her fingers in the sheets. “I need you.”

Celestia nodded. Her gentle smile didn't falter as she pushed her hips forward, steadily sliding her prick into Twilight's waiting ass. Twilight gasped at the odd, yet fulfilling feeling, unlike anything she'd ever had before. It didn't hurt nearly as much as she thought it would have. Or whatever pain she felt merely added to the feelings of pleasure. Twilight's cock throbbed even harder, sending waves of delicious lust washing over her.

Soon, Celestia got into a rythmn, working her hips back and forth as she slowly, steadily worked her way in and out of Twilight's tight, needy ass. Twilight found herself paralyzed by the pleasure, incapable of anything more than squirming weakly as Celestia worked herself in and out of Twilight.

An electric shock ran through Twilight as she felt long, gentle fingers curl around her shaft- she looked down the length of her body, where she saw Celestia gently stroking her in time with her thrusts.

“It's only polite.” Celestia said, and her soft fingers just brushed the sensitive head of Twilight's cock.

The gentle touch (and the gentler smile) was enough to overwhelm Twilight. She came, messily spurting her thick, heavy load into the
air. Cum splattered over Celestia's fingers, and onto Twilight's belly in a thorough, sticky mess. Twilight moaned incoherently, the use of words having escaped her as she writhed and bucked through her orgasm.

A short eternity later, Twilight's heart stopped racing. She stared up at the ceiling, still panting, covered in a sheen of sweat and her own seed. Somewhere along the line, Celestia had slid her cock out of Twilight's ass. The glorious solar princess lay next to Twilight, leaning on one elbow, looking down at her with a lovely smile. Celestia hadn't broken a sweat, and not a hair of her impressive mane was out of place. Twilight fainly wondered if she should've been jealous of Celestia's perfect poise, or perhaps guilty, that she hadn't pleasured the Princess enough to so much as muss her hair. Twilight's eyes slid lower over inviting, pale skin- and she gasped as she looked between Celestia's legs.

“Princess!” Twilight blurted, sizing up that slick, sticky, and thoroughly hard cock. “You didn't-”

“It's alright, Twilight. This is about you.”

“I'm sorry, Princess.” Twilight said, and rolled to nuzzle against the taller woman. She breathed in Celestia's deep, intoxicating scent, and smiled. “It's my responsibility as your loyal subject to make sure your every need is attended to.” She kissed softly at Celestia's neck.

Celestia smiled, and ran her fingers through Twilight's hair. “Have anything in mind?”

“I think I have an idea.” Twilight gently guided Celestia to lay back on the bed. The solar princess stretched out languidly, and Twilight couldn't help but bow down over Celestia's chest, cuddling in briefly to close her lips around one of Celestia's nipples. She eagerly sucked on the firm, fleshy nub, eliciting a breathy giggle from Celestia. For symmetry's sake, Twilight moved to tease Celestia's other nipple in turn. She squeezed at Celestia's ample chest, momentarily enthralled by the Princess' magnificent tits.

Twilight pried herself away from Celestia's chest, and slid her hands down lower. She finally shifted around, moving to straddle Celestia's lap. Twilight bit at her lower lip, and squatted downwards, sitting herself down on Celestia's hard cock. It slid in a little bit easier this second time, but not by much.

Celestia slid her hands up Twilight's thighs, and the younger woman relaxed, breathing in quick, shallow breaths as she felt the odd, but increasingly enjoyable sensation of a dick in her ass. Twilight's lips pursed into a determined line, and she began to bounce herself on Celestia's prick. Each quick movement made Twilight's tits and cock wobble about wildly. Sweat began to bead on Twilight's brow, and soon the young purple-haired princess was panting raggedly. She forced herself to keep going, encouraged by each roll of Celestia's hips, each push of Celestia's cock.

“Please, Princess.” Twilight gasped through dry lips, “Come for me. Come in me. Let me make you happy.” She shivered, and then eased herself down a bit lower, taking all of Celestia into her tight, pleasantly aching ass.

A delicate sigh escaped Celestia's parted lips, and she thrust her hips upward, deeper into Twilight- and then she let herself go. Twilight gasped, feeling the hot seed flood her tight, aching butt. Celestia bounced Twilight on her shaft a few more times, and then eased her well-used student back to the bed.

Twilight twitched as she felt Celestia slide her cock out. She could do little but pant for breath, even as Princess Celestia cuddled up next to her and kissed Twilight's neck. Each brush of her lips left a tiny, yet thrilling shock rippling across Twilight's skin.

“That was even more amazing than I ever thought it would be.” Twilight said, breathily. “Even if I never imagined the, uh, anatomy.” She slid a hand down Celestia's belly, and took hold of her still-sticky cock. “I guess I really could get used to this … “