Please

Shining Armor stood in front of his sister’s door, his hoof poised to knock.

On another day, at another time, he might have asked himself: Was he really about to do this? He already knew the answer, though. The fat, heavy weight hanging between his legs knew it for him.

He swallowed, then knocked three times. “Twily?” he called out. He was proud that his voice didn’t shake. “You in there?”

“Who is it?” Shining’s shoulders slumped at her reply. Oh, thank goodness.

“Shining!” A weak grin crossed his face. “Your B.B.B.F.F.?”

There wasn’t even a hesitation. “Come in!”

The door swung open before him, and he stepped gratefully through. His hooves padded on the carpet as he made his way into his little sister’s room, stepping off of the hard, polished wood of the hallway outside. In here, the walls were lined with posters of famous unicorns, bookshelves groaning with textbooks and storybooks alike, and stuffed animals, too. Twilight was still a filly, after all.

Once Shining was fully inside, he closed the door behind him with his magic. It clicked shut, almost silently. He needed this to be quiet. Mom and Dad were downstairs, and if they heard the wrong thing—

But all of this was the wrong thing, he knew. So long as he finished tonight with the release he needed...everything would be alright. The monster between his legs throbbed, and he winced.

Twilight was lying on her bed, flopped back on a frilly pink pillow almost twice her entire size. She had a book cradled in her lap—a Daring Do book, Shining noted from the title. When the door closed behind him, her eyes flicked up expectantly.

“What’s up?” she asked. Shining’s heart fluttered in his chest. That cute, innocent filly’s voice—it twisted something inside of him, made his veins thrum with need and want. Steeling his nerves, he licked his lips and stood a little straighter.

“Well,” he said, a strained grin on his face. “If I recall correctly, there’s something that we never quite finished discussing on Friday.”

“What’s that?” Twilight’s big eyes blinked up at him. They were incredibly adorable—and, to Shining’s libido in overdrive, equally alluring.

His grin widened. “You wanted to know what ‘The Talk’ was, right?” he said. “I can do even better than tell you. I can show you.”

Twilight’s eyes widened. Her mouth formed a small, cute ‘o’. “Really?” she said. “You’d do that! You’d—”

Shining’s magic caught her just as she jumped off the bed. “Yes,” he hissed. “I will. On three conditions.”

Twilight bobbed her head.

“First,” Shining said. “You’ve got to be quieter than that.” Twilight mimed zipping her muzzle shut, and Shining chuckled. “Second, you do not tell Mom or Dad anything about what I’m about to tell you, or that I’ve told you at all.” He waited for Twilight to nod before continuing. “Finally...”

He was suddenly very aware of the weight of the balls swaying between his hind legs. He was made equally aware of the way his engorged cock was throbbing with his heartbeat, and the puddle of dripping pre that was rapidly staining Twilight’s carpet. The glint of magic around Twilight’s body whispered to him. She’s under your power completely, it said. You could do anything.

And he would. Shining gulped. He just needed this taken care of first.

“And second…” Shining drew in a deep breath as he floated Twilight down to the carpet. “I need you to remove that spell you cast on me.”

“That spell?” Twilight’s brow furrowed. “What spell?”

“The one you used when I didn’t tell you,” Shining said. Oh, Celestia, she had to know what spell. “The one that was supposed to make a stallion do ‘whatever you want’.”

“Oh!” Twilight said. “That spell! So it worked after all!”

“Yeah, yeah,” Shining said. “But I need you to remove it. You do have a counterspell, right?”

“Oh! Yup.” Twilight paused. Her eyes narrowed shrewdly. “Wait a minute. How do I know you’ll still tell me if I took it off?”

A fat glob of pre launched from Shining’s cock and splattered all over the carpet. He grinned awkwardly. “Trust me. I will. Just...” His grin wavered. “Please.”

“Okay…” Twilight frowned. She was quiet for a moment. Then, she squeezed her eyes shut and screwed up her muzzle. Her horn flared a bright pink—and then flashed. At first, he didn’t feel anything. But then...

It felt like an egg breaking over Shining’s neck. Its warmth seemed to ooze down his neck in tendrils, caressing his shoulder blades before moving down to his back and haunches. Shining almost moaned as all of the tension went out of his body; he hadn’t realized how tense he’d been. He felt the warmth of Twilight’s magic curl down around his legs, shrouding his stallionhood. His balls pulsed hungrily. Then...the feeling was gone.

Shining drew a long, ragged breath. He didn’t...think he felt any different. He swayed a bit, then winced when he felt his balls smacking against his thighs. Still plump, and still tender. Right.

But all the same...somehow, he knew that the spell had been lifted.

“Okay, then,” he said, exhaling. He shot Twilight a smile. “Now, I’m going to teach you all about it, okay? A promise is a promise, after all.” He didn’t say that it was a promise he’d made to himself.

“Yay!” Twilight cheered. Then, as if remembering her promise to be quiet, she slapped a hoof to her muzzle. Smiling sheepishly, she said, “I mean, yay.”

Shining chuckled. “All right,” he said. “I’m going to need you to back onto your bed, then. On your back.”

Twilight nodded, and hopped up onto her mattress. Once she was on her back, she looked at him expectantly. “Now what?”

“Now,” Shining said. He grunted and heaved himself up after her. “I come up with you.”

Part of his mind—the innocent, brotherly colt—voiced its final, desperate objections. The spell was lifted, it said. He didn’t have to do this. He could just give Twilight a half-assed answer, then go jerk off in his room. He didn’t have to take his little sister’s innocence.

But the stallion in him—the aggressive, pent-up stallion—crushed that objection without a qualm. He’d long since made up his mind on this. He wanted Twilight’s fillyhood more than anything he ever had before. He needed it in a way that he could scarcely describe. This was no spell anymore, he thought, his cock slapping against his belly as he heaved himself onto her mattress. This was what he knew he wanted.

He eased himself back onto his haunches, the mattress sinking beneath his weight. He was easily twice Twilight’s size and weight, and her bed was more used to holding up a young filly than a colt on the verge of stallionhood.

His cock, thick and tall and covered in precum, slapped wetly against his belly. Shining licked his lips, watching Twilight’s gaze anxiously as he did his best to present himself in front of her.

Her eyes just widened. “Your thingie!” Twilight gasped. “It’s all big and wet!”

“Yes, it is.” Shining mentally sighed. No freakout yet. “Do you know what it’s called?”

She frowned. “Your...penis?”

There was about a fifty-percent chance she’d gotten that out of the anatomy section of his biology textbook. Ignoring the fact that this meant she’d been sneaking into his room and stealing his schoolbooks, Shining just grinned down at her. “Yup. Though you can also call it my ‘cock’.”

“Cock.” Twilight tasted the word. She seemed to like the sound. “Does it have something to do with the Talk?”

“Oh, it has everything to do with it,” Shining said. “You see, Twilight, when a stallion loves a mare very much, they have sex.”

“Sex.” Twilight blinked. “Like for reproduction?”

“Something like that,” he said. “But also because it feels good. What happens is that the stallion puts his penis—his cock—inside of the mare’s vagina, or marehood. ”

“Vagina,” Twilight said. “Oh, wait! I have one of those.”

“So you do,” Shining said, grinning. “Though that isn’t the only way to have sex. Just touching a stallion’s cock, or a mare’s vagina can make them feel good.”

Twilight suddenly gasped. “Wait,” she said, squinting adorably. “You said that ponies have...sex when they love each other very much. When a stallion loves a mare very much.”

“That’s right.”

“Like you love me?”

Twilight looked up at him, her big, innocent eyes blinking invitingly. Shining felt a shiver go down his spine. He didn’t waste a beat in replying, “Yes, Twilight. Just like I love you.” He felt his hoof twitching in her direction and just went with it. As he smiled down at her, he rubbed her shoulder comfortingly. Her fur was soft and warm beneath his touch, and she giggled softly at the contact.

“Well, then,” Twilight said, in her most matter-of-fact tone. “Since I love you too...does that mean that I can help you feel good, too?”

That was just what Shining had wanted to hear. His smile widening, he patted Twilight on the head and said, “Of course you can, Twily. I’d love it if you did.”

Twilight beamed. “Okay!” His cock throbbed again, and her eyes were drawn to it like a magnet. Shining saw a fat bead of precum beading at his flare; the rest of his shaft was already streaked with his pre, but Twilight seemed to be staring specifically at this drop.

She tilted her head. “Can I...touch it?” she asked. Of course. Show Twilight Sparkle something new, and she’d want to learn all about it—even if that meant having a hooves-on experience. Shining could barely stand the anticipation.

“Go ahead,” he said, and held his breath.

Twilight didn’t seem to hear him at first. Instead, she seemed entranced, mesmerized by his pillar of meat. She was actually swaying slightly, her head bobbing to the visible throbbing of his member. Slowly, almost experimentally, she reached out and placed one hoof on its side.

Shining’s thighs tensed reflexively. Twilight’s touch was the first physical contact he’d had with another pony in days—and the first time he’d ever had somepony touch him “down there.” He bit his lip, straining to hold in a moan. Twilight’s hoof, so tiny, so fragile next to his turgid stallionhood, traced slowly down his length. The bristling of her soft fur against his slick, smooth shaft set his nerve endings alight; Shining grunted, his eyelids fluttering, as his dick lurched. A fat glob of his pre splurted out and hit Twilight right on the cheek.

She let out an “eep!” of sudden fear and jerked back. Her hoof yanked away from his shaft. Her eyes widened, and her hoof flew up to her muzzle.

“It...shot stuff at me!” Twilight exclaimed. “Gooey stuff!” Her hooves went to her mouth. “Oh no! Did I hurt it?”

Shining chuckled. “That’s just my precum, Twily,” he said.

“Pre...cum?” Twilight said.

“Yup,” Shining said. “It means that I’m very aroused.” A blush touched his cheeks at Twilight’s befuddled expression. “Or, to put it simply, you made me feel good.”

Twilight blinked again. “Touching it made you feel good?” she asked. Shining saw her mentally note that down. He could almost see the gears grinding in her big, filly eyes. She wiped her hoof against her cheek. When she pulled it away, it was coated in what had to be a good tablespoon of Shining’s milky-white pre. She stared at it, then glanced back at Shining’s member. The friction of her hoof against its surface had left it swaying, bobbing genially in the air.

Shining nodded shyly. “It did. But the shaft is just one part of my stallionhood.” He nodded down at his flare. “There’s also the head, where the precum comes out. And the balls, which make it.” He pointed down at his swollen ballsack with a hoof. It was plump enough that, even with both his legs spread wide, his nuts still pushed against his thighs. Every time he flexed his hind leg’s muscles, however slightly, he could actually feel the unspent seed churning around inside of them. Small wonder a single touch of Twilight’s could induce that much of a response.

His muzzle twitched. Unspent seed. Well. Not unspent for much longer.

Twilight regarded them for a moment. “Balls,” she said. She nodded. “Does touching those feel good, too?” She leaned forward, her forehooves sinking into the quilt. Her perky filly flank stuck out a bit above her shoulders, waggling precariously in the air. Shining caught his eyes wandering toward her Cutie Marks, then quickly glanced back down at her face.

“It can,” he said. “You just need to—nnggh.”

Twilight’s hoof paused, just after it’d sunk a good quarter-inch into Shining’s fat left nut. Shining’s thighs flexed, his shaft swaying even harder as his crotch tensed at the contact. He groaned audibly. The sound of pleasure escaped him without even a second thought. The touch of Twilight’s hoof, barely wide enough to cover even a quarter of his cum-laden orb, was still more than enough to send pre-emptive endorphins shooting up his spine. He could feel his cupfuls of cum sloshing beneath her touch, and imagined every drop of his seed covering her face—or filling her tight, filly hole.

Twilight hesitated. “Did that...feel good too?” she said. “You’re just making these weird sounds. I don’t want to…”

“You’re...mmff. You’re not hurting me, Twily.” Shining bit the inside of his cheek. Twilight had begun to gently massage his ball, her two little hooves teasing and squeezing his swollen nut ever so gently. “Just...so long as you don’t press too hard.”

Twilight nodded to herself. “Okay,” she murmured. When she pulled back her hooves, Shining almost whimpered; her touch had felt like heaven, her soft fur better than his own hooves around his shaft. But Twilight was just getting started.

Planting herself down on her haunches, she scooted herself a bit closer. The blanket scrunched up beneath her legs, her tail trailing across the fabric. Once she was scant inches away from Shining, she rocked herself back, picked up both hooves, and placed them back on his shaft.

Her hooves traced down the sides, two tiny, soft circles attempting to appease a swollen giant. Shining licked his lips, watching Twilight’s hooves overrun with his precum.

She wrinkled her nose. “They’re getting all sticky.”

“That just means you’re doing a good job,” Shining reassured her. “Keep...mmff. Keep going.”

Twilight nodded. She squeezed a bit harder around Shining’s shaft and pulled it toward her chest. It went up past her muzzle, and smacked playfully against her nose when it lurched again. This time, Twilight giggled when Shining’s flare came away with a thread of precum still attached.

“It’s really warm,” she observed. Her little hooves kept moving up and down Shining’s base, just below the medial ring. Shining’s arms trembled a bit as his little sister jerked him off. “And it keeps...throbbing?”

An interested glint in her eye, she leaned forward again. Shining exhaled when he felt his sister’s muzzle brush against his flare. As her hooves encircled his shaft, she softly nuzzled his tip. The softness of her fur against his cock teased out another glob of pre. This time, it landed in her mane, matting her hair. Twilight didn’t even register it. She was too preoccupied with her new toy to pay attention.

Shining shuddered with pleasure. Twilight’s muzzle had booped against his flare a final time, and was now slowly moving down his shaft in parallel. Her hooves pushed up his thighs, then settled just against his belly. Twilight herself, meanwhile, buried her little muzzle in Shining’s fat ballsack. She nudged one orb with her nose, then twitched back reflexively when it pulsed in return.

“They smell weird,” Twilight announced. She scrunched up her muzzle adorably. “Like you, but...more.”

“That’s musk,” Shining told her. “It means I’m...uh, well, very turned on.” He hesitated. “You can...lick them if you want.”

“Lick them?” Twilight pulled back and stuck out her tongue. “Blegh. Mom says I’m not supposed to lick weird things.”

“Is it weird if it’s part of your brother?” Shining grinned down at her. “It’s just like a kiss.”

Twilight looked thoughtful. “I guess,” she said.

“You might even like the taste.” Shining quirked an eyebrow down at the pre-slick sheen covering his round, fat nuts. “Give it a try. Think of it as an experiment.”

If there was one thing that Twilight Sparkle could never resist, it was an experiment. She instantly sat up a little straighter, her eyes glimmering with the light of her filly’s intelligence. Bending down, she poked her tongue out of her muzzle and squeezed her eyes shut. Slowly, carefully, she licked across the surface of Shining’s ballsack.

Twilight paused and licked her lips. A bit of Shining’s pre had smeared across her mouth, and was now dripping down her chin. “It tastes kinda...salty?” she said. “Hm.”

Evidently, more experimentation was required. Twilight dove back down and actually latched onto one of Shining’s nuts. Her muzzle was pursed around it as she sucked on his plump balls, lightly kneading them with her tongue and lips. Shining groaned, another tremble overpowering his nerves as Twilight’s hooves went back to rubbing his shaft.

He was getting close. Oh, Celestia, but he was close. Shining grunted, his hooves sinking further into the mattress as he leaned his weight back. Twilight didn’t seem to notice his change in posture, still occupied with sucking at his pre-coated balls.

His little sister was jerking him off. She’d tasted his pre, and liked it. Shining shivered as the familiar pressure built up at the base of his shaft. The touch of her soft, filly lips to his ballsack was like heaven; each trace of her hooves around his girth just made it throb all the harder. His heart was beating in his chest like a drum—surely he would cum? He’d done his waiting. He had to cum—had to finally feel release. Sweat was rolling down Shining’s forehead. As Twilight explored him further, investigating every inch of his member, Shining felt that pressure building in his loins. He almost whimpered. He needed to reach the edge.

He coughed. “You know, Twilight,” he said, a blush rising to his cheeks. “You could try putting the top into your mouth. That might taste even better.”

Twilight’s lips came away from his ripe nuts with a liquid pop. She eyed his fat, bobbing member skeptically. It throbbed in time with Shining’s heartbeat, rivulets of his precum still streaming down the sides. “I dunno,” she finally said. “It seems pretty big.”

“Just give it a try,” Shining said. “You might like it.” Twilight nodded.

Cautiously, she raised her muzzle to the top of Shining’s flare. It was a bit too tall, so she had to bend it slightly toward her to reach. For a moment, Twilight was still. She stared across at his member, sizing it up. Then, she leaned forward and went for it.

Tingles danced along Shining’s skin as her lips made contact. Twilight’s mouth was already coated with saliva, and so the slickness of her skin against his pre-coated flare elicited another throb without much effort. Carefully, as if measuring each centimeter, Twilight’s opened her mouth. Bit by bit, her muzzle opened up over Shining’s flare. She used her hooves to keep it steady, a tiny pair of limbs keeping his hulk of a stallionhood in place. By the time her muzzle had covered half of his flare, Shining realized just how much smaller his little sister really was.

But not, it seemed, too small. Brows furrowed, and hooves digging a bit into the sides of his girth, Twilight looked determined to make it all the way. He could actually hear her jaw creak a bit as she pushed her muzzle wide enough to take the whole thing—and slipped it in, just past her lips.

Shining grunted. Twilight’s teeth had bit into his head, making the first sensation a thoroughly unpleasurable one. “Not your teeth,” he murmured. “They...nggh. Hurt.”

Recognition dawned in Twilight’s eyes. If she’d been able to, she would have nodded. Instead, she carefully rearranged his cock in her mouth so that he felt only the softness of her gums against it. Shining groaned, letting Twilight suckle on his shaft as his hoof traced tiny circles on her back.

She couldn’t go down too far—it wasn’t long before Shining felt his head bump against the back of her throat. Still, it was an impressive feat on its own. At thirteen inches in length, and now over two inches in girth, it was no small accomplishment for a filly of Twi’s size to take his flare in at all, let alone swallow any meaningful length beyond that.

And yet, as Shining watched, Twilight was able to make her way past a whole four inches. His meaty flare bulged out her cheeks as she went. Her whole expression was the very picture of determination. His head throbbed again, a new glob of pre bursting against her tongue. Twilight took it in stride; in fact, from the way her eyes lit up, she liked what she was tasting. She gulped down his leaking pre easily, the drool from his swollen shaft trickling down her throat as she swallowed more and more of his cock. She bottomed out at six inches, but that was more than enough to get Shining’s chest heaving with almost painful arousal.

Slowly, Twilight began to draw her head back. A thin line of Shining’s precum ran down her chin, her mouth too full of his meaty shaft to close entirely. The suction of her lips around his member was nonetheless incredible; in that moment, there was nothing more that Shining wanted to do than take his little sister by the cheeks and push his shaft all the way down her throat, facefucking her and dumping his load directly into her stomach. He could see it now: the bulge in her throat, the widening of her eyes, the smacking of his balls against her muzzle—

But no; this was Twilight. Even if she was doing...this with him, he couldn’t do that to her. Not now, or yet. This was her first time, after all.

Shining’s eyes fluttered as Twilight’s lips slipped over the tip of his flare, this time on their way back down. “Oh, fuck,” he groaned. His cock lurched in her mouth, the flare bulging against her cheek. “Oh, fuck. Oh, yes—”

For the first time in over three days, Shining Armor came. Every almost-orgasm, every drop of seed that had wanted to escape his nuts, but had been forced back by Twilight’s spell—all of it seemed to come roaring out as Shining’s hips bucked wildly.

Twilight’s eyes widened as the force of Shining’s hips shoved his cock another two inches past her muzzle. It bulged obscenely in her mouth, cum bursting from his. Thick ropes of Shining’s seed erupted in Twilight’s muzzle, what felt like cupfuls of hot, creamy seed flooding directly down her throat and into her stomach.

Twilight’s jaw creaked; Shining’s member was just too big. The sheer force of his orgasm was pushing his cock back out of her mouth, but his girth had lodged in firmly above her tongue. Shining whinnied in pleasure as his long-suffering nuts dumped what felt like every drop of jizz that they could muster right down his little sister’s throat. Pulses of warmth ran through Shining Armor’s body, singing through his veins as he finally hit the release that he’d been waiting for.

Between pants of all-encompassing pleasure, he heard Twilight groaning. Foamy bubbles of cum were starting to leak out around the sides of her muzzle, strings of jizz trailing down her chin. She was gulping down his spunk as fast as she could, each new half-cup of seed filling up her cheeks before she swallowed it back down to make room for more. Shining’s nuts bulged and churned, eager to spill their seed in such a willing subject.

With a whiplike jerk, Shining’s member popped free of Twilight’s mouth. The pressure was simply too much, the force of its cum-eruption simply too great. Twilight toppled back onto the bed, moaning. Her prone form made an optimal target for Shining’s spasming cock, which splattered her belly, muzzle, and legs with rope after rope of his seed. By the time he was done, another five seconds of mindblowing, intense orgasm later, a good quarter of her body was covered in his creamy white.

Shining groaned as he came down from his high. His cock shuddered a final time, then fell still. Twilight lay groaning on the bed, her hooves on her cum-matted belly. It bulged a bit, somewhat swollen from all of the jism Shining had pumped into her. It looked, by all indications, that she’d just had an oversized meal—and given the amount of protein that her brother had just unloaded down her throat, she may as well have.

Instantly, Shining’s cheeks flushed a bright red. “Oh, geeze, Twily,” he said. He pushed himself forward so that he was leaning over her; his cock slapped wetly against his belly. “Are you okay? I should’ve warned you. I didn’t mean to hurt you.”

Twilight groaned. She reached up to wipe her eyes, then scrunched up her nose when she only succeeded in wiping more cum onto her face. A flash of Shining’s horn cleared most of her eyes off. “M’fine,” she grunted. Her eyes fluttered open, and she glanced down at her slightly rounded tummy. With a mesmerized look on her face, she prodded it, tilting her head when she saw her hoof sink into the soft, cum-padded surface. When she pulled her hoof away, she left her belly sloshing, a thread of Shining’s spunk connecting her hoof to her matted, cum-stained fur.

“What is this stuff?” she asked him, wide-eyed. She held up her white-coated hoof to her muzzle and sniffed it. She frowned. “S’not like the other stuff.”

Shining just sighed. He sat back onto the mattress and winced when his balls slapped against his thighs. Evidently, they still weren’t completely drained. “That’s my cum, Twily,” he said. A sudden thought made him check back over his shoulder—toward the door—before continuing. “A stallion’s penis make it when he orgasms.”

“Orgasm?” Twilight said.

“Kind of the end of sex. For a stallion, at least.” Shining hesitated. “It’s the thing that can feel the best out of the whole thing.”

“So I made you feel good?” Twilight said.

Shining caught the hopeful glimmer in her gaze, and beamed at her. “You made me feel great, Twily.” His cock throbbed again, and Shining felt his still cum-filled orbs sloshing. “Though it looks like I could go for another one,” he muttered.

Twilight nodded along with him. She eyed her hoof for a moment more, then licked it. “Tastes salty like the other stuff.”

Shining chuckled. “Sorry for...ah, making you swallow it all like that. Some ponies like to do it, and I just didn’t think.”

“S’fine.” Twilight kept looking at her hoof, turning it from side to side so that different parts of it caught the light. “Do fillies make cum, too?”

Shining’s ears perked up. This was the first time that Twilight had brought up the possibility of her own pleasure. “They do,” he said. “Not exactly like stallions do—it’s not white, or sticky, and there’s a lot less of it. But mares can orgasm too.”

“And it feels good?”

Shining remembered some of the lewder magazines he’d...borrowed from Dad’s closet. A goofy grin on his face, he nodded, and said, “It feels very good.”

Twilight looked hopefully up at him. “Could you help me org—orgasm, too?”

Now there was the question he’d been waiting for. Shining’s muzzle quirked upward, and he nodded quickly. “Sure! Here, let me come down next to you.”

He plopped down onto the bed next to her. His heavier weight sunk into the mattress, the sheets ruffling as his elbow pushed up toward her headboard. Shining grinned into his sister’s eyes, then gently nudged her with his muzzle.

“Lemme just move over a bit, okay?” he said. “You can get on my lap, and I’ll show you all about it.”

A few seconds later, Shining’s head was resting against Twilight’s oversized, fluffy pink pillows. The filly herself lay on her back, right on top of his stomach. Shining cradled her in his left hoof and rubbed softly at her belly with his right. He could feel his seed sloshing around inside, and silently smiled. He hoped there’d be more of that to come.

His cock, still hard and engorged with arousal, poked up between Twilight’s legs. It cast a thick, dark shadow over her torso, its shaft still streaked with white. Twilight eyed it, her head nuzzled right up beneath Shining’s chin, as it steadily dripped droplets of precum down onto her chest. Shining just chuckled.

“Okay,” he said, cuddling her a bit closer. She was only about half his size—less, even—so it was easy to get a good grip on her. “You know where your vagina is, right?”

Twilight pointed to it. Shining grinned, and moved her hoof down between her legs.

“Right,” he said. “But did you know that rubbing against it can make you feel good? Just like with my cock.”

Twilight’s lips formed an “o.” She suddenly gasped when Shining’s hoof brushed against her cute filly lips. “Ooh!”

Shining instantly stopped. “You okay?” he asked.

Twilight nodded. “It just felt...weird. That’s all.”

“It might at first,” he told her. “But given time, you’ll also realize how good it feels.” He swallowed. “Do you mind if I touch it again?” Twilight thought for a moment, then nodded shyly.

Shining smiled. He readjusted his posture a bit, edging his shoulders up the headboard of the bed so he could have a better look over Twilight’s shoulders. As he did, the base of his cock rubbed against Twilight’s folds, eliciting an “eep!” of surprise from the filly’s muzzle. Shining chuckled, then slid his hoof down her stomach and toward her crotch, pushing his shaft away to make room for his next move.

Slowly, Shining began to rub at Twilight’s clit. He started with large circles, moving his hoof across her crotch and slowly tightening the radius. A droplet of liquid, warm and slick, touched his fur. He heard Twilight whimper, but when he hesitated, she shook her head.

“Keep going?” she said, still shyly. “It...does feel a little good.”

Shining was happy to comply. He massaged her folds a little more vigorously, and savored the cute little moan of pleasure that escaped Twilight’s muzzle. He could feel his heart beating fast in his chest, and stifled a tremble in his hoof. A bolt of daring surging in his gut, he bent forward and planted a kiss on Twilight’s forehead.

“Still feel good?” he murmured, stroking her flank with one hoof as his other went to town between her legs. Twilight’s lithe thighs trembled, another whimper escaping her lips.

“Do you want me to keep going?” he asked.

“Y-yes,” she mumbled in reply. “Please.”

He smirked, and moved his head forward. His ears twitched, savoring the soft, high sound of Twilight’s answering “Oooh.”

Shining had moved from nuzzling her cheek to nibbling gently on her shoulder. His tongue pressed against her shoulder has he kissed her fur, her mane brushing against his cheek. As he slipped the tip of his hoof inside of Twilight’s fillyhood, he heard her breathing become labored. Growing more daring by the second, Shining massaged her flank as he brushed his snout up and down her neck, still vigorously stroking her moist, tight insides. He could barely fit his hoof inside of her tight, vaginal walls, but the second he slipped inside of her, Twilight’s whole body tensed.

She was like a spring, all tight and wound up on his chest. Shining slipped his hoof around his member and pulled it against his sister’s thigh. A steady drool of pre leaked down onto Twilight’s chest, his slick shaft rubbing against her leg as he worked her tender fillyhood. Twilight’s cute moans and whimpers drove him forward, pushing him to help her reach her peak. His fat cock pressed into her cum-filled, sloshing belly as he helped her masturbate.

Shining buried his face in her mane, taking deep breaths of Twilight’s sweet, innocent scent as she moaned in pleasure. He could feel her muscles tensing, flexing, then relaxing against his as her haunches twitched. Twilight cried out cutely as Shining’s hoof brushed against her G-spot, his thick, brotherly hoof finding her sweet spot for the first time in her life. A spasm of her lips around him left it damp with her pleasure, her whole lower body twitching and lurching as her breaths grew increasingly labored.

“Shining,” she moaned. “I’m—ooh, I feel like—ooh, yes!”

Twilight squealed, her body convulsing as the force of her first-ever climax hit her. Shining’s rock-hard cock ground against her chest, feeling every lurch and spasm of the little filly’s body as her inner muscles clamped down around his hoof. Twilight’s hips jerked violently, her moans reaching a fevered pitch as the heat in her young loins reached its peak.

And then she was finished, coming down from her high as her vagina winked in with the aftershocks of pleasure. Twilight panted, sweat streaming down her forehead. She went limp in Shining’s grasp, collapsing entirely against his chest. When he brushed her mane away from her eyes, there was a deep, rosy blush covering her cheeks.

She was breathing heavily. “W-was that an orgasm?” she panted.

Shining softly stroked the side of her neck. “Yes, it was,” he murmured, nuzzling her cheek. “How’d it feel?”

She drew in a shuddering breath. “Good,” she finally said. “Really good.” She glanced up at him, something unreadable in her eyes.

He gave her a kiss—not on the forehead or cheek, but on the muzzle. His lips locked against her smaller ones easily, his big tongue pushing its way into her mouth. He tasted her saliva, tasted himself on her tongue. She almost pulled away at first, but then relaxed into it, letting the pull of the alien experience draw her along. When Shining finally pulled back, Twilight was breathing a bit more lightly, though the blush on her cheeks was even deeper.

“Mommy and Dad do that,” she said, giving him a shy look. “Do you...really love me that much?”

Shining hugged her closer, and planted another kiss on her neck. “More than anything,” he whispered, grinning. “You’re my Little Sister, Best Friend Forever, after all.”