“Did you know dragons are endothermic?”

Starlight would’ve groaned, but that required energy, and that was in short supply at the moment.

“I guess we’re just used to thinking of all lizards and the like as ‘cold-blooded’, but apparently that’s not how it works,” Trixie said as her eyes scanned the pages of a large tome. “It depends on whether the animal can generate heat from within its body or if it must use external heat sources, and since dragons use their own magic to generate fire, their heat comes from within, which makes them endothermic and therefore ‘warm-blooded’.”

Starlight looked up from her book and gave Trixie a flat stare from across the library’s table. “Why are you telling me all of this?”

Trixie slammed the book closed and looked at her with a playful expression. “Because you took the book about dragon dicks, so this is all I have left.”

Even though she should’ve gotten used to her friend’s teasing by this point, she still felt a rush of blood going to her cheeks. She may have been flustered, but that didn’t mean she was going to let it show!

“It… it’s not my fault ponies know so little about dragons, this is all I could find!” she cried out, her voice getting higher the longer she spoke.

Smooth, Starlight.

Taking it from both Trixie and her subconscious was too much. Starlight managed to muster up enough energy to groan as she buried her face in the book. After their little conversation back at Trixie’s wagon, they had run all the way back to the Castle Library for research. Though perhaps Starlight had done most of the running, while she dragged Trixie with her. There may have been a bit of screaming alongside it.

Nevertheless! She had looked for every possible book that could tell her something about what to expect from Spike’s penis. Sadly, there were only a few books that seemed promising, and now she was torn between wanting to rush to the pertinent pages, and not wanting to be disappointed in case her search was fruitless. However, the results so far were… encouraging.

“I did find something, though.” Starlight finished her sentence with a gulp.

“Ooooh…” Trixie pushed her book away with a flick of her hoof and slid around the table. “This I want to hear.”

A shadow of a grimace crossed Starlight’s face, but her bubbling enthusiasm wiped it away in an instant. Her eyes went back to the open book and searched for the relevant section.

“‘Long thought to share similarities to the breeding habits of their reptilian ilk, recent discoveries, brought forth by the new close relationship between the draconic and equine nations, have shown that there is more to the dragon’s mating rituals than were previously thought.’”

“Sweet Celestia, was this guy paid by the word? Get on with it!” Trixie exclaimed in exasperation.

Far from chastising her friend’s impatience, Starlight quickly scanned the paragraphs for important information. “Let’s see… remote locations… preferably warm climates… nesting within the female’s hoard… Ah! Here it is!” Starlight said as she found what she’d been looking for. “‘Thanks to their intelligence, the dragons engage in elaborate mating rituals’”—Trixie cooed—”’in which the dominant dragon will pin down their mate and will proceed to engage in physical contact by pressing their bodies against each other…’”

“So far so good!” Trixie said encouragingly. “Spike’s not that big, so I bet it’ll be a very comfortable cuddling session before getting to the action.”

Though she didn’t say it out loud, the thought brought a smile to her face. She could get a bit rowdy during sex when in the right mood, but the thought of a more intimate encounter was even more enticing. She didn’t want to think too much about it at the moment; at the very least, she didn’t want to dwell so much on it that she ended up ruining the upholstery. She imagined an old cushion, thick fabric, and springs would be much harder to clean than just a few bedsheets. She could save those thoughts for later analysis.

Yes… Very thorough analysis~

With a slow buildup of annoyance at her mind, at Trixie, and at the increasing delays, Starlight turned the page and let out an estranged gasp as she felt her previous thoughts—even those of her conscience—vanish as a single word filled her mind.

Big.

On the following page there was a full two page spread containing a drawing of an adult dragon. The detailed depiction of the mighty specimen made several annotations about his horns and the angular ridges of his facial features. His wings were wide open, so much so that they actually covered as much of the pages as the body of the dragon itself. The thick arms and legs resembled tree trunks, and the claws the protruding roots.

And, of course, right between his legs, were two very erect penises… penes… dicks. Two very erect dragon dicks.

“Sweet Celestia, look at those two…” Trixie said, scooting closer to her. She leaned forward, her nose almost touching the page. “I think each is bigger than Celestia!”

It was nice to count on the reassurance of a friend during troubling times.

“‘A hemipenis (plural hemipenes) is one of a pair of intromittent organs of male dragons and other squamates. Hemipenes are usually held inverted within the body, and are everted for reproduction via erectile tissue, much like that in the penis of mammals,’” Trixie read from the text at the bottom of the page, wonder and excitement clear in her voice.

“I don’t… I mean… I’m not sure what to think,” Starlight said, her mind caught between surprise, horror, and mild interest. On some level, she knew it would be a long, long time before Spike ever started to come even close to being that big. However, Starlight was capable of simple math, and her mind was already making a proportional estimate of how big Spike’s dicks were.

Still big.

And yet, those thoughts were quickly washed away when she actually started to consider all the ways Spike’s spikes differed from what she was used to. A stallion’s penis was essentially a somewhat conical cylinder with a thicker base up to the medial ring—Why is it called medial ring? It’s not even in the middle, it’s more like little over a third from the start—with the head being a bit bigger, too. However, the ones in the drawing were quite different, in an enticing sort of way. From an opening in the dragon’s crotch, two dicks came out. Each of them—Of equal length!—was slightly curved at the base before straightening and pointing upwards. Unlike a stallion’s penis, which were more or less cylindrical with the lower third being thicker, a dragon’s penis was smoother with a gradual change from the thick base to the thinner but no less impressive tip. Also, the tips. While the dicks she was used to ended on a flat, slightly wider head that got bigger when the stallion reached climax, in direct contrast, the dragon’s two penises ended in a rounded tip. She imagined a modestly sized version of one of the dicks in the picture attached to Spike, prodding at her lower lips, and quickly realised this shape would make penetration much easier. The lack of a large flare at the tip meant that it would go in with more ease, and the way it slowly grew thicker and thicker meant it would be easier for her to adapt to his dick until he hilted.

If he could hilt at all.

Nope! I am not ruining this for myself!

There’d be time to worry about that later. Right now, there was still something to consider. The diagram on the page seemed to value scientific pragmatism over artistic value, so the hemipenes were just an outline. However, the artist had put in the effort of drawing a few details on the side of the flesh. Just what—

“‘Hemipenes come in a variety of shapes, depending on species, with ornamentation such as spines or hooks,’” Trixie continued reading.

“What?”

“I guess that’s what those things on the shaft are. Amazing, isn’t it? It’s already ribbed for your plea—”

“Hooks?!” Starlight cried out as she grabbed Trixie by the shoulders. She wasn’t sure if she was shaking Trixie or her own body was shaking. “I don’t want hooks inside my vagina!”

“Sta-Starlight,” Trixie stammered, “Th-the Great and Po-powerful Trixie orders—Stop!”

Starlight’s hooves were seized by Trixie’s magic, forcing her to stop. Trixie, once more, looked unamused.

“Sorry…” Starlight said as she settled down, taking deep breath after deep breath. “Just… you said the “h” word. We’re not going to use the “h” word from now on.”

“Sure…” Trixie replied as she shook her own shoulders and turned to face the book once more. “I wouldn’t worry too much, the book does say it varies depending on the species. Either way, you are one lucky girl, Starlight. Not many mares can say they’ve laid a dragon. And yes! I know you still haven’t done it, but you get Trixie’s meaning.”

“Did the book really say ornamentation?”

Trixie’s eyes danced across the page as she hummed. “It does.”

“What does that even mean?”

“I know right? I can think of a few functional uses for those little edges,” Trixie said with a little growl and a smirk.

Starlight imagined she was in her room at night, laying on her bed with Spike across her. They were holding each other, close. Just as they started to make out, he started shifting on the bed, spreading his legs, only for his gargantuan dicks to pop out and push her off the bed.

“Aaaaaaaaaaaah!”

“There we go, Trixie knew that wasn’t over,” Trixie said as she kept on reading calmly while Starlight broke down next to her.

“How are we supposed to have sex?! I can’t fit one of those down there! Much less two!”

“Okay, Starlight. Listen—”

“Do you see those things?! I’d be split in half if he tried to put one in. How am I supposed to handle two?”

“Oh, I see. We’re doing this.” Trixie shrugged and kept on reading. “Well, I’ll just let it run its course.”

“I mean, maybe I could take the tip and the first third, but this is too much! Anything more would split me in half!”

“Good to know you aren’t a size queen, Starlight.” There seemed to be a few more drawings on the following pages, so Trixie started flipping the pages back and forth in concentration.

“I’m serious,” Starlight said as she put her hoof on the book. “I don’t know… I mean…"

Trixie let out a soft sigh before facing Starlight. She leaned forward and crossed necks with her, holding her close as she patted her back.

“Calm down, Starlight.”

“But—”

“It’s okay, I understand. You’re nervous, scared, and probably many more adjectives I don’t know.” While Trixie’s tone was soothing, it did little to ease Starlight’s nervousness. “Trust me, you’ll be okay.”

“You don’t know that…”

“Actually, I do,” Trixie said, letting go of Starlight and floating the book towards them. “You won’t have to worry about that for a long, long time.”

Starlight looked at the pages Trixie was showing her. It depicted a younger dragon, probably just a bit bigger than Spike, and his twin pillars of dragon flesh seemed less… intimidating.

“Read.” Trixie ordered as she pointed at a few paragraphs beneath the drawing.

With a brief pause to take a calming breath, Starlight read. The textbook continued talking about young drakes and, more to her interests, sexual maturity.

“‘Though dragons will continue to grow for centuries, reaching their full size sometime between six hundred and nine hundred years of age, they achieve sexual maturity after their first growth spurt, which happens within their first couple of decades. At this age, dragons are already capable of breeding, but they’ll continue to grow throughout their lives,’” Starlight read.

“See?” Trixie closed the book and put it back on the table, but she never tore her gaze away from Starlight. “Sure, Spike’s going to get scary big in more than one way, but let’s face it, that’s so far into the future you won’t get to enjoy it.” Before Starlight could comment on that and ignite a powder keg of existential dread, Trixie continued. “Unless you become an alicorn, in which case, Trixie thinks you can take a couple of tree-sized dicks.”

Despite herself, Starlight let out a genuine laugh. Such a simple gesture, but it went a long way to release some of the tension that had been building inside her.

“Now that’s more like it,” Trixie said, smiling. “So, again, don’t worry. I’m sure your drakefriend’s dicks will be of manageable dimensions.”

“Oh, I hope so…” Starlight trailed off. Once more, she pictured Spike laying next to her on her bed. Only this time, Spike’s hemipenes seemed less daunting. Well, imagining two alien looking penises was still intimidating as much as it was enticing, but the size no longer made her feel as if her vagina was about to seal itself in fear.

Perhaps she was just being silly. Well, no. It was a reasonably worrying prospect, but she was sure they’d find a way to have sex without her ending up in the hospital. Perhaps she could magically grow her body until he was just big enough to fit comfortably. Or just keep growing to match Spike’s size, should he have another growth spurt.

Maybe you should focus on how to fuck someone with two cocks first.

It was true, she wasn’t sure how to start. How did you fuck two cocks? Besides the obvious way, of course. She glanced back at the book and started thinking about how to do it.

“You’re thinking about them going in you, aren’t you?”

“Ah! Trixie!” Starlight cried out, feeling a rush of blood go to her face.

“What?” Trixie said with a shrug. “I could see it on your face. Besides, better to get over it now than spend the rest of the afternoon thinking yourself to death about it and beating yourself over some imaginary fault.”

“I… I wasn’t going to—” Starlight started, but she was cut off by the flat stare Trixie was giving her. “Okay, maybe I was.”

“And that is why you should be grateful I’m here,” Trixie said, smiling as she patted Starlight’s shoulder.

“I wish you’d been here over the weekend… Maybe I wouldn’t have gotten so wrapped up in my own mind.”

“And now you’re going to start wallowing in regret? We’re not even drunk yet, save it for the weekend.”

Starlight laughed once more, and the smirk that flashed across Trixie’s face wasn’t lost on her. She wasn’t sure where she’d be without her friend.

“So, back to dicks,” Trixie said, cheerily.

Yes. Where indeed…

Starlight sighed and turned to face the book. The young drake looked somewhat similar to Spike. Of course, Spike was much more handsome. Not to mention he looked leaner and more muscular. The drake’s frame was more rough as well. Spike was bulky and masculine, too, but his body still had a few smooth curves here and there. Especially near that cute butt of his.

And, of course, his dicks. Dicks, it felt so weird to say and even weirder to have grown used to it so quickly. She imagined how they’d look, and how closely they would resemble the ones in the book. Perhaps it was vanity, but she wanted to think Spike’s would be much prettier.

She was brought out of her reverie when Trixie clopped her hooves against the table. “I don’t think you’ll have much trouble getting it in. The tip alone seems like it would be fun.”

“It… it’s kinda cute, isn’t it?” Starlight ventured, doing her best not to fall back into nervousness.

“That’s a way of putting it,” Trixie said, sounding almost contemplative, deep in thought. After a few seconds of silence, she spoke again, “You know, that shape is almost too good.”

“What do you mean?”

“Well, look at it this way.” Trixie held up her hooves and pressed the undersides against each other. “With a stallion’s penis, you get the flare”—Trixie’s hooves separated to the approximate width of a stallion’s flare and then brought them a bit closer—”then you get the shaft, and there’s almost no variation there, the girth stays almost the same until you hit the medial ring”—her hooves separated once more and stayed at that distance—”and then you get the thickest bit all the way to the base.”

“I know, what’s your point?” Starlight asked, though she had an inkling of where Trixie was going to take this.

“Well, look at those things!” Trixie said with a nod towards the book. She once more brought her hooves together and started speaking. “That cute rounded tip will slowly tease its way in”—she separated her hooves just a bit, though the very tip of her hooves were still touching—”and since the penis starts at almost the same width, it will slowly get wider”—her hooves separated more—”and wider”—and kept separating—”and wider, which means you’ll get to feel that delicious dragon dick spreading your pussy wider and wider, which means you won’t get used to the width because every time he goes deeper you’re going to get more and more cock.”

Starlight wasn’t sure when she had forgotten to breathe, but her vision had started to blur around the same time Trixie had started speaking. Her friend’s simple words were evocative enough to paint a very vivid image in her mind. She could picture it perfectly. She could almost see Spike rubbing the tip of his dick against her and going in, spreading her further with every centimeter of dragon flesh that went inside her until she hit the bottom and he was completely inside of her. She pictured his face, right in front of hers, his snout but a hair’s breadth away from her, and his beautiful green eyes staring into her as deeply as his dick was inside of her.

“Haaaa… “ was the only thing Starlight could say.

“Oh, I imagine that would make anal much easier,” Trixie said with wonderment.

“...aaah!?” she cried out as her mind was abruptly brought back to reality.

“Yeah! I mean, you still want to use lube, of course, but since it doesn’t start as big, it’ll be easier to get it in. And since it slowly gets bigger—again, don’t forget the lube—it’ll probably means you won’t get much discomfort from it,” Trixie said, sounding deep in thought. “You know, I’ve heard that a penis can stimulate the vaginal walls from inside the rectum. It’s only a thin layer of flesh separating the two. I bet it can feel amazing.”

Starlight blinked as she stared at her friend. Trixie’s earnest attitude caught her so off guard she wasn’t sure what to say.

How about: “Thanks, Trixie! I’ll be sure to keep that in mind.”

That implies I will want to try… that!

Well, what else can be done with another penis coming right next to the one you’ll have in your vagina?

That doesn’t mean I have to take it in my ass!

It’s not like you’ve offered many alternatives. Besides, it’s just anal, it’s not like it’s the end of the world!

Whose side are you on?

I’m you, idiot. I just want to get laid and I want you to stop making excuses!

“Starlight? Are you okay?” Trixie asked.

Starlight blinked a couple of times and looked away in embarrassment. “Yeah. I’m just… having an argument with myself.”

“Then why do you look angry?”

“Because I’m losing!” Starlight yelled, despite herself.

Silence dawned on the room, alongside a hefty dose of awkwardness. Even though she wasn’t facing her, Starlight could feel Trixie’s worried stare in the back of her neck.

“Okay, Trixie will ignore all of that,” she said, matter-of-factly. “And hey, sorry if I made you uncomfortable with the talk about butt stuff. I suppose I just got too caught up in it.”

“I… uh…” Starlight said. “I mean. It’s not that I’m against it, I don’t think. It’s just that. It’s kind of overwhelming.”

Trixie, in a much needed display of empathy, put her hoof on Starlight's shoulder and turned her around. She gave her a reassuring smile, and spoke in a calming tone, “I can imagine… Like I said, it’s not like I have a lot of experience, but you shouldn’t be afraid of it.”

“Not the kind of thing you can decide to do on the spot, right?” Starlight ventured a smile.

“Someone’s learning!” Trixie replied, sounding pleased. “I mean, if you don’t want to do it, then that’s it. I’m just saying it’s an option and you shouldn’t fear it.”

Starlight wondered how long it would take her to stop being afraid. Then again, she had made a lot of progress today thanks to Trixie, her friend had certainly been quite helpful. “Thanks, Trixie… I—”

“Save that for your anniversary! You could make it your analversary, you know? Make the whole thing special, though I suppose that should commemorate the first time you had anal. Eh, you'll figure it out,” Trixie continued, as if she hadn’t heard Starlight.

Trixie is such a good friend.

Whether that had been genuine or sarcastic, Starlight wasn’t sure, but something Trixie said caught her attention. The other day, Starlight had told Spike she wanted their first time to be special and not just because they lost control. So why not go out of her way of making it special? Make a whole event out of it. Maybe not how Trixie meant, but perhaps go on a date with him, spend the whole day together and slowly set the mood.

They already had great chemistry, and a big deal of unresolved sexual tension, it wouldn’t be that hard to bring up the topic. Besides, Spike had already admitted he also wanted to have sex with her, it shouldn’t be that hard. Now the only question was how to go around making the day special.

“Hey, Trixie,” Starlight said, realising her friend had kept talking while she had gotten lost in her own thoughts.

“…which is why you should try to play with your clit while you’re—Uh, what?” Trixie replied, after being pulled from her reverie.

“If you were to take somepony out on a date, and I mean someone who was really special, how would you do it?”

“Wouldn’t even think it twice. Front row seat to one of my shows,” Trixie replied without missing a beat. Starlight was about to roll her eyes, but Trixie continued speaking. “That way I’d make the whole show about him. I’d use my magic to show him how I feel, and how much he means to me. It would be me and him with everypony else there to witness the rise of the Happy and Enamoured Trixie.”

Silence hung in the room as Trixie’s words faded. Starlight had to admit she hadn’t expected her friend to say something so heartfelt and so… Trixie at the same time. It made sense. Trixie’s magic was an integral part of who she was, so of course she would want to express her affection with magic. Twilight would probably do the same. Rarity didn’t need a reason to make clothes and garments, but she imagined she would put extra effort into making something special for a special somepony. Pinkie would probably bake some sort of super ultra special cake and make a huge party out of the whole thing.

“You didn’t think Trixie spent her free time just thinking about sex, did you?” Trixie said as she turned away, sticking her nose up in the air in mock annoyance. “I’ll have you know she is quite the romantic!”

Starlight giggled. “I didn’t imply otherwise.”

The heart of the issue was that she’d have to find a way to make a special date for both of them in a way that would set up a nice mood for their first time.

It was probably not going to be as easy as that, though… If only there were somepony she could ask. Trixie meant well, and had been an incredible support, but Celestia bless her heart, her friend’s track record with stable relationships wasn’t all that great. She supposed she could ask Rarity again, but for all the knowledge the mare had on love, she was still single after all these years. If only she knew somepony who had successfully been in a stable relationship for some time and managed to be happy all that time…

Starlight blinked once. Twice. And then let out a groan as she realised she’d been too wrapped up in her own mind to see what should’ve been obvious from the start. Again.

“Huh? What is it?”

“Get up, Trixie,” Starlight said as she turned away and started walking towards the door. “We’re going to see Maud.”

Author's Note

If D&D says dragons are warm blooded, who am I to contradict it?
No recipe this time around, either. Even if she's not around, Starlight fears Twilight will find out she was taking books into the kitchen. Don't worry, next chapter will have a neat recipe and some more riveting talk about sex.
And Maud!
Yay!