The Rewarding Effects of Sibling Sex

by TittySparkles

Rating: mature
Tags: My Little Pony: Friendship is Magic, Alternate Universe, Shining Armor, Slice of Life, Sex, Twilight Sparkle
Length: 8312

Finally having enough of masturbating to each other getting off, Gleaming decides to show her brother the joys of real sex.

Dusk Shine and Gleaming Shield have a very interesting relationship. Both have a thing where they masturbate to each other in order to get off, and Gleaming Shield secretly watched her brother touch himself. As great as it is for them, Gleaming decides to step it up a notch after a small event occurs and does her best to make bonding with her brother a much greater experience. Because when two horny siblings who get off to each other almost daily, and end up finding themselves in the same house without any parents around, a new type of relationship is born.

contains Rule 63 counterparts and incest

Edited and preread by: Shadowflash, The Abyss, Skeeter The Lurker, SolidFire, and Mikemeiers

Published 2014-07-18 15:10:03 UTC
Last updated 2014-07-26 00:41:17 UTC

Chapter 1

"N-no way," Gleaming muttered as her hoof went as fast as it could against her vagina, only to come to a sudden halt as she came.

Moving her hoof away and breathing heavily, she stared forward, wide-eyed and shocked at the turn of events that just transpired. Same basic morning, same basic shower, same basic session where she and her brother masturbate to each other without Dusk truly knowing, and the same basic spell that lets her see through walls. The only real difference was... she had came and her brother had not.

"As if you actually outlasted me," Gleaming huffed as she saw her brother slowly stroking his erection, almost like he was purposely taking his time and enjoying every second of it.

As she stared at the meaty erection in Dusk's hooves, she bit her lip and looked down at her soaked body. Even with the constant running of water against her body, Gleaming could still feel a bit of the sticky fluid catching and clinging to her fur. Normally she would whine, but she was still more shocked that her brother outlasted her.

"Well... looks like it's time for me to live up to my own little deal," Gleaming said with a smirk as she caught her breath and relaxed. "But how should I go about it?"

Looking away from her brother, Gleaming thought about how to actually bed her brother. Though she was slightly hesitant, over time Gleaming had started enjoying the sight of her brother's penis getting stroked. For her, it got to the point that whenever she saw Dusk, her mind went instantly towards having sex with him. She knew it was wrong and no doubt knew it would be considered immoral to partake in incestual sex, but she wanted, and desired to have the real thing stuff her instead of some magical copy. Even though she was still upset she came quickly, Gleaming was happy, and suddenly hearing her brother's bed starting to creak, she knew he was nearing his own climax.

Looking back to him, Gleaming smiled as a few strands of semen shot out of his dick and the rest dribbled out, coating both his shaft and hooves. She heard him sigh, and for a few seconds he didn't move. As she stared at his unmoving body, Dusk suddenly let his fore legs go limp and they fell to the bed below.

"Lasting longer and even starting to show more endurance," Gleaming cooed as she dropped her spell and started to quickly clean herself properly. "Wonder just how easy I will be able to convince him to share a bed for a bit."

Returning to her thoughts, Gleaming smiled, knowing that the next few days would be the best time to get to her brother. Both their parents would be gone for the weekend, leaving the two of them alone in the house. On top of that, her guarding schedule would be light as well, and she wouldn't wake up feeling stressed over everything.

"The timing couldn't be any better," Gleaming said to herself as she finished cleaning, turned off the tap, and stepped out of the shower to dry herself. "Once Saturday morning hits, I'll make my move on him.”

~~

The sound of the alarm clock rang wildly, causing the one sleeping mare to jolt from her slumber and slam her hoof on her side table repeatedly. Groaning as each motion missed the alarm and thus causing the bell to continue ringing, Gleaming finally turned her face up to the clock and switched it off.

"Ugh, I seriously need a quieter clock," Gleaming whined as she turned her face back into the pillow and tried to go back to sleep. "Wait, isn't it Saturday? Why am I... oh right!"

Overcoming her tired state, Gleaming quickly rolled her body over and sat herself up in her bed. A sudden head rush greeted her and her tired eyes strained to focus on the dim sunlight coming through the window.

"Ahh, today is the... day," Gleaming spoke with a yawn as she rubbed her eyes and looked in the direction of her brother's room. "Parents are gone and it's just you and me, Dusky."

Betting he was still asleep, Gleaming gave her head a shake and quickly lit up her horn. Casting her spell, she focused it on her wall, and when everything came into focus, Gleaming was surprised to see her little brother sitting upright in bed, reading a book.

"Did... he stay up all night?" Gleaming asked herself, knowing that sometimes Dusk loved to pull all-nighters when he got himself a good book. "Oh dear brother of mine," she spoke with a deep sigh as she started to pull herself off her bed. "Hopefully that book isn't good enough to turn me away. Hmm, maybe I can get him to drop it."

With part of her body touching the floor and bed, Gleaming decided to lay back down and wondered if her daily antics in the shower would work from her room. Positioning herself on her back, Gleaming spread her slender legs slightly and rested her hoof on her stomach area.

“Uhhh, I’m so tired,” Gleaming suddenly moaned loudly, causing her brother to stare in her direction. “Maybe a quickie will help,” she added in, making her brother have to listen more carefully.

Continuing to watch her brother, she saw him moving his eyes between the book and his wall, almost debating if he wanted to read or listen to her touch herself. The internal struggle went on for a few long seconds, and Gleaming could see his lips moving, no doubt talking to himself, but finally Dusk put down his book and, much more to her surprise, she watched him climb out of bed.

“Where are you going?” she asked quietly as he slowly crept towards the wall. “Wait… are you, oh Dusky, you naughty little brother of mine.”

Smiling as she stared, Gleaming had watched her brother walk directly up to his wall and put his ear to it in an effort to hear everything much more clearly. She knew he was waiting for her to start moaning, thanks to the way one of his hooves started to rub against his sheathe in an effort to harden up.

She was only going to rub herself until Dusk was fully hard, then she would get up and go visit him. Most likely pop in like a caring sister wanting to say hi, and Dusk would no doubt scramble back to his bed and cover it up. That was her plan for sure. Once Dusk was fully hard, Gleaming cut out her magic touching and quickly pulled herself out of the bed. Even with her magic blanket gone, Gleaming still worked her x-ray spell and it travelled with her.

“Mhm, not really in the mood right now,” Gleaming said with a sigh that was loud enough for Dusk to hear.

Quickly trotting to the door of her room, she opened it up and went directly for Dusk’s door.

“Little brother? Are you up?" Gleaming asked in an innocent yet sly voice.

As her voice traveled through the door, she held back her laugh as Dusk stopped stroking his penis, rushed back to his bed, and placed his erection under his covers. In an effort to fully hide it, Dusk took the book he was reading prior and pressed it against his erection.

"Y-yeah, I'm up, sis," Dusk replied, his voice reeking of nervousness.

"Thought so. Can I come in?"

"Uhh, s-sure, come in!"

Ooh, this is going to be too easy. Gleaming's thoughts buzzed with life and the anticipation for what was to come. Cutting out her x-ray spell, Gleaming slowly opened the door and quickly got rid of her crafty smile, instead exchanging it for a more tired and fatigued look.

"Hey, Dusky. I see you pulled an all-nighter on the books again," Gleaming spoke out as she walked in and saw dozens of books on the floor, ranging from simple sciences to arcane magic.

"Uh, yeah, sorry," Dusk spoke with a blush on his face as he looked down at his book. "The prince told me he wouldn't be able to teach me this week, so I took a few books from the libraries in the castle."

"A few? Dusk, you have like a whole library in here," Gleaming said as she saw many more books scattered across the room. "Sometimes I worry about you."

"What can I say... I love to read," Dusk replied as he adjusted his book again.

Turning to him, Gleaming glued her eyes on the book and knew that all she had to do was move it away and act shocked as his erection popped up through the sheets. She could see the scenario play out; he would stutter, hide it, look embarrassed, and maybe ask to be left alone. She in turn would ask about it, smile, be curious to how big he is, take off the covers, and let the fun start. In fact, she was sure that's how it would happen, considering she was able to read her brother so well.

"What book you reading there?" Gleaming asked as she stepped closer to the bed and noticed a guard's royal insignia on the cover of the book. "Ooooh, are you reading a book on adept spells by any chance?"

"Y-yeah, I was just reading up on the spells that the castle guards are armed with," Dusk replied, feeling a bit guilty he was looking into part of his sister's working area. "I've seen you do interesting spells and was wondering what some of them were."

"Ooh? What spells have you interested in studying it?" Gleaming asked.

"Well, what about, um," Dusk stopped talking and looked down at his book, no doubt knowing what the spell was but still feared moving it away.

"What? Can't remember which page it is on or something?" Gleaming asked as she lit up her horn and used her magic to grab the book. "Here, tell me the spell and I'll find it."

As she pulled the book away, Dusk's mouth opened and he was ready to say something, but with his penis about to be exposed, he quickly covered up. Of course, Gleaming knew that would happen and, staring wide eyed at her brother, she put the book down on the ground.

"Oh, did... I interrupt you when you were in the middle of something?" Gleaming asked, putting a hoof to her jaw and trying not to giggle.

"L-look, it's not... it’s just I... I-I'm not jerking it to books if that's what you're thinking!" Dusk replied, his voice flustered and his mind racing as Gleaming watched the small tent in his blankets.

"Did... did you hear me earlier in my room?" Gleaming asked, to which Dusk calmed down and gave her a nervous look. "Dusk... did you get hard from listening to me touch myself?"

The panic started to set in for Dusk Shine, and Gleaming watched beads of sweat start to roll down her brother's head as he tried to figure out what to say. As bookish and smart as he was, Gleaming knew he wasn't going to be able to talk himself out of the situation.

"I-it's not what you think, sis! I... I just," Dusk stopped talking and bit his lip in an effort to find the right words. He stopped making eye contact with Gleaming and looked to the covers of sprawled out books in an effort to find a proper answer.

As he looked about, Gleaming knew it was the right time to spring into action. He was distracted, lost, horny, eager... so many different emotions were most likely running through his body that all he really wanted was comfort. Letting out a deep sigh, Gleaming started to climb onto the bed with him.

"Wait, what are you doing?" Dusk asked as he watched his sister climb up and sit right beside him.

"You know it's alright if you jerk yourself to me moaning, Dusk," Gleaming spoke to him in a soothing voice as she watched Dusk's hooves fidget and try to hide the erection still.

"Wait... you're not creeped out by this?" Dusk asked, thinking he would have been called various names for his actions.

Gleaming said nothing for a second and knew she was going to have to drop her innocent sister act any second. Getting rid of her shocked look, she smiled and went in close to Dusk's ear.

"Grab the book and turn to page fifty-two for me," Gleaming asked as both of them quickly looked to the book on the floor.

"Why?" Dusk asked simply.

"I want to show you a spell quickly."

Wondering what he was going to show her, Dusk lit up his horn and grabbed the book on the floor. Within seconds he quickly opened the book and turned to the page she requested.

"What's this? A... see through spell?" Dusk asked, not sure what he was looking at, considering he had only started on the book a bit before Gleaming woke up.

"Yeah, that's one of the first spells they teach the guards," Gleaming replied as she lit up her horn. While she did that, Gleaming watched her brother's eyes scan the page in an effort to study it as quick as he could.

"Now look to the wall ahead of you," Gleaming asked as she performed the spell.

Looking up from his book, Dusk saw a beam of light shining at his wall and things on the other side started to come into focus. The first room being the bathroom and shower area.

"Now if you have been jerking yourself to me moaning..." Gleaming started to say as Dusk's ears folded back and his jaw dropped. "I'm pretty sure I would have heard and seen it all."

"Y-you know I've been... uh, jerking it to you already!?" Dusk spoke in a panic as his face reddened and his still erect penis twitched.

"For the past few months, Dusky," Gleaming cooed as she snuggled closer to her brother's warm body. "Truth be told I've been watching you stroke yourself every time."

"You have?" Dusk asked, pressing his hooves down harder .

"Yes, in fact I always make sure you get hard before I start playing with myself," Gleaming spoke with a chuckle.

Dusk said nothing, his mind trying to grasp the enormous truth given to him. His sister, playing him like the horny stallion he was. Making him rub himself for her enjoyment and pleasure.

"It quickly became a morning habit of mine to watch you jerk yourself," Gleaming replied as her hoof moved to his hooves. "But... let’s just say I've decided to change it up."

"Every morning?" Dusk asked and quickly figuring out that she did start touching herself every morning some time ago.

"Every single morning, Dusky. I had fun getting off to you getting off, but I think it's time we try something different."

"Wait, you're not thinking of—" Gleaming silenced her brother by bring her other hoof up to his mouth and covering it.

"I know what you're going to say, and you don't have to worry," Gleaming replied, knowing the hazards of incest. "Why do you think I'm doing this now that mom and dad are gone?"

"But.. what about Bolero?" Dusk asked.

"Don't worry about him. We can make this our little secret. Bolero, our parents, heck, not even the prince has to know about this. This will be between both of us for as long as we live," Gleaming replied as she started to push away her brother's hooves. "Now, let me see how big you are when I'm up close."

“Ummm, before we begin,” Dusk muttered out as he looked towards the wall he was standing by earlier. “Did… you notice me earlier?”

“Oh yes I did,” Gleaming chuckled as she too looked at the same spot. “Ear to the wall and hoof on your crotch; all the more reason to do this.”

Both looked back at each other before they turned to the area of Dusk’s hooves. Making the first move, Gleaming slowly pried her brother’s hooves away and quickly moved the sheet. Once his penis came into view, she noticed it wasn’t fully erect. Even though it was slightly limp, Gleaming still smiled at the sight.

“Not bad, Dusky,” she replied softly as she moved her hoof to it and gently rubbed it. Flinching from the touch, Dusk clenched his eyes shut and took a deep breath in order to try and calm himself down.

Noticing he looked tense, Gleaming wasted no time and readjusted herself so her face was to his penis and her body was laying across the bed. Once she was set, she looked up at her brother’s innocent eyes and could practically see the need behind them.

“Remember, you don’t tell anyone about this, Dusk,” Gleaming warned as she clamped her hooves onto his erection and brought her muzzle mere coat hairs away from it.

“I won’t,” he replied quickly as he rested his head against the headboard, while still watching his sister get ready to suck him off.

Gleaming said nothing to him and slowly opened her mouth. Wrapping her warm lips around the tip of it, Dusk felt his body shudder and thought he was still dreaming. Never did he think he would end up bedding his sister for a morning, and he sure as heck never thought that she would be the one to start up the sex. Even with just her lips around the flared tip and her tongue swirling around the it, Dusk found himself already in bliss. Thankfully it only got better as Gleaming gently bobbed her head up and down the head of his erection, doing her best to get him fully hard.

Considering how much he was enjoying it, it only took a few seconds before Dusk was again hard and ready for a ride. But that didn’t stop Gleaming. No, she wanted to make sure his erection was nice and ready for her. Bringing one hoof down to her vagina, Gleaming slowly worked it so she would get more aroused and wet for him. As her hoof moved, she took her mouth off the tip and began licking the rest of his shaft.

Even with simply licking, Gleaming didn’t hold back. She went all over his shaft. Tip, ring, bottom, heck, she even suckled on his nuts a few times. All the while she moaned, sighed and kept her eyes on Dusk’s face as she worked. His once innocent eyes would always stare down at her, and when she had a brief pause from licking him, she smiled and did her best to make him enjoy it.

Finally, Gleaming found his erection nice and wet enough. Taking her mouth off of his member, Gleaming let out a sigh as she licked the edges of her mouth. Noticing Dusk's erection was twitching and still in need of nurturing, Gleaming pulled her body up.

"Now that you're nice and hard," Gleaming spoke quietly as she pushed her brother's body to the bed. "Are you ready to learn how real sex feels?"

Gulping back his nervousness, Dusk timidly nodded his head and looked to her flickering tail. As he did, a bit of her sexual arousal was picked up by his nose and he knew without a doubt that she wasn't going to waste time with him. And he was right. With the small touching session she did in her own bed, plus also getting more horny as she hardened him up, Gleaming's was ready.

Moving forward, Gleaming brushed her inner thigh against his erection before she sat on his gut, allowing her rear to just barely touch his penis. Looking back as she readjusted herself, part of her tail ended up touching his erection, but thankfully most of the tip of it touched the edges of her wetness. As she started to slowly grind her rear against his penis, Gleaming looked into her brother’s wide and excited eyes before she moved her front hooves and put one near each side of his head.

"I'm still waiting for an answer, Dusky," Gleaming teased, making Dusk feel even more of the heat and wetness coming from her vaginal area. "I want a proper answer."

"Yes. Yes, I want it," Dusk spoke out, his mind growing more and more eager while his common sense started to lessen.

With his answer spoken, Gleaming wasted no more time. Lighting up her horn, Gleaming used her magic on Dusk's penis and kept it straight. Before the young stallion had a chance to respond, Gleaming moved her body and let nearly all of his erection slide right in.

"Ohmygosh! Oh... oh my gosh!" Dusk muttered as the wet and very warm feeling wrapped around his erection.

“Mhmmm ahhh, this feels very nice," Gleaming moaned as she tried to pinch her lips together to silence her moan, ultimately failing.

As both of them became one, Dusk and Gleaming trembled with excitement. Neither said anything for a few seconds, until Gleaming pulled her body up, causing Dusk to sigh deeply. Though she thought she taken most of it in, Gleaming found only just over half was inside of her. Thankfully his ring was in, and wanting to enjoy the extra girth of it, she moved her wetness down and up, letting it enter and exit.

"How's that feel for you?" Gleaming asked in a joking manner as she noticed her brother’s mouth wide open along with his eyes looking straight up.

"Oh my gosh, this is sooo much better than the books say," he spoke as he still tried to process the feeling of it.

As much pleasure as her movements gave Dusk, Gleaming herself was greatly enjoying the feeling of his ring. For long seconds, she simply moved her body just to feel it more, and she even made her movements more jerky so it was entering and exiting with split second intervals. Her actions made both of them speechless, and she kept doing such until she want to up her game.

"It only gets better, little brother," Gleaming cooed at him before she slammed her body down and took the rest of it in. As she did, Dusk let out a loud ahh! and then felt his voice get cut off. Caught making little gasps for air, Dusk let his mouth stay agape until he felt his sister start to gyrate her hips and move his erection about inside of her.

"Ooooh, I love how it always feels bigger when it's inside of me," Gleaming moaned as she slowly started to ride him.

Not wanting to overwhelm him so quickly, Gleaming bounced lightly on his lap, barely letting any of his erection leave her. Even though she was light with her movements, the sound of wet flesh did play out, and that was mostly thanks to how wet she was.

"Oh wow," Dusk groaned with pleasure but suddenly stopped as Gleaming moved a hoof to his jaw. Looking at her hoof with a curious glint in his eye, he quickly looked up at her smiling down at him.

"No more talking," she told him. "Just relax and let me take care of you."

Quickly nodding his head, Dusk took a deep breath and tried to relax himself. As he did, Gleaming moved her front hooves down to his and quickly moved them up so they were placed on her rump.

"If you want to impress me, give my butt a firm slap as I ride you," Gleaming told him.

Nodding at her, Gleaming quickly moved her body up and down, causing Dusk to quickly do as she asked. For a brief second he rested his hooves against her firm and very toned ass before giving it a resounding smack. As he hit her, she let out a moan and rode his dick harder. As he hit her again, Gleaming moaned louder and went even faster. He did it one more time, and that caused Gleaming to rest both her front hooves against his chest and ride him as fast as she could go.

"Oh my gosh, this is the best feeling ever," Dusk muttered under his breath, his eyes clenched shut as the pressure in his erection started to build. “Uhh, Sis? I’m worried I’ll - ahh!”

Before Dusk could finish his sentence, Gleaming knew his first time would be a quick one. While she knew such, she wanted to make his first time one he would remember, lighting up her horn, she wrapped his erection in a blanket of magic even as she continued to ride him hard.

“Worry you’ll… cum too quickly?” Gleaming asked in a joking manner in between breaths. “Now you won’t.”

Not sure on what she was doing, Dusk stayed quiet and enjoyed the extra layer wrapped around his erection. The combined feeling of how warm and tight she felt, along with the gentle feeling of magic, sent many of his senses crazy. Part of him still wondered what the spell was for, but wanting to enjoy the feeling of it, Dusk said nothing and continued to enjoy the feeling of his sister bouncing on his lap.

As she bounced, the bed gently creaked beneath him and both ponies looked into each other’s eyes until Gleaming started to enjoy the feeling more. For a second she stopped bouncing, only to pull her quivering pussy nearly off of his erection and then slam it back down. As Dusk awed at the feeling, Gleaming moaned periodically and her eyes started to flutter to stay open. As much as she loved the feeling and loved making her brother happy, moaning was something she actually didn’t do loudly during sex. As strong and as frisky as she was, her moans were usually timid and her lips were usually occupied by a different set of lips.

But that didn’t stop her from looking good for Dusk, and even though she was quiet with her moans, she did do something he enjoyed greatly. Still riding his dick hard, Gleaming lowered her head a bit closer to his and moaned sweet words in his direction.

“You’re doing good” or “You know how to please a mare” to even simply moaning his name very quietly got his blood flowing. Hearing his own name is what really got him into it. Thanks to all the times he jerked it to her moans, he always wanted to hear his name from her.

“How much are you enjoying this, Dusky?” Gleaming moaned, her voice starting to go to levels she used in the shower.

Dusk said nothing and simply gave his sister’s rump a smack. His actions earned him a stifled moan and, wanting it again, he repeated the action. Her moans got louder and her riding got faster, but Dusk kept smacking his sister’s rump with enjoyment.

“Ooooh, you really are enjoying this!” Gleaming moaned loudly, her rump starting to turn red.

Gleaming was right, but thanks to how much Dusk was enjoying it, he also started to feel his climax building up.

Yet as it did, nothing came out.

Wondering what was wrong, Dusk quickly realized his sister’s spell must have stopped him from cumming. Even as badly as he wanted to cum, he greatly enjoyed the feeling of being on the very edge of a climax. The way it was for him made him start to buck his hips upward and meet Gleaming halfway.

As both of them worked feverishly, Dusk groaned and clenched his teeth as hard as he could while Gleaming rode him so hard that she wasn’t holding back her own moans. If their parents were home, they would have surely heard everything. But that was the last thought in both their minds, and focusing on the pleasure they were getting, nothing stopped them from having sex.

Yet like how all good things must end, and with Gleaming riding her brother so hard, she was nearing a much needed climax.

“Sis, I can’t… take it,” Dusk groaned, his body sweaty and his erection nearly ready to burst from the pressure. “It’s... starting to… hurt.”

Hearing her brother’s words, Gleaming had no problem dropping her spell. Once she did, she let out a deep and carnal moan as Dusk shot everything he had right into her. Even though he was a daily masturbater, Dusk shot so much of his pent up frustrations deep inside of her and never stopped bucking his hips.

“Oooh, you’ll be making a mare very happy once you get married!” Gleaming moaned as so much seed got shot into her that it pushed her to her own finish. “A-ahhhh!!”

With that she came as well, and both of their fluids mixed together to form a very messy cocktail inside of Gleaming. Even as they felt it inside of her, and even felt a fair amount seep out of her vagina, both kept riding and thrusting until the fatigue finally took over them.

“Oh wow, that was sooo good,” Gleaming moaning as she finally came to a stop and sat still on her brother.

“That… was the greatest thing I’ve ever felt,” Dusk sighed deeply as he brought a hoof to his forehead and wiped off a large amount of sweat.

As both stayed still and let their heavy breathing keep the room from being silent, they looked at each other’s faces. Seeing calm and relaxed expressions, they quietly enjoyed the afterglow they were settling into, and it finally ended as Dusk’s penis started to go flaccid and slip out of Gleaming’s pussy. Once it was out, Gleaming leaned back and stared down as the messy fluids inside of her started to fully come out.

“Quite a mess you made, Dusk,” Gleaming sighed as semen started to flow onto Dusk’s lap. “Looks like we will both need a long shower now.”

“Seems… like that,” Dusk panted. “Shall I go first?”

Gleaming said nothing and simply smiled at him. Leaning into his face, Gleaming let the tip of her nose brush against him before she spoke up.

“Why not shower with me? No one said the fun was over yet.”

Shower Bonus

“You mean it, Gleam?” Dusk asked in an eager tone, the prospect of more sex making his tired eyes light up. “We can do this again?”

Gleaming said nothing for a second and quietly looked into her brother’s eyes in an effort to study them. With their first act of sex concluded, Dusk no longer seemed to carry that once innocent glint in his eyes. Instead, Gleaming noticed something she saw in Bolero’s eyes the first time they had sex. Need and desire replaced innocence and curiosity, and she knew that whenever one of them would be alone, their minds would always travel to the areas of sex. As bookish as her younger brother was, not even a lesson from the prince himself would sway the young stallion’s mind when he let it wander to the wondrous feelings of sex.

“You bet we can, Dusky,” Gleaming replied with a smile as she moved one hoof down and brushed it against her brother’s penis. “You’re still a bit hard, and I’m curious to see how much energy you have after an all-nighter.”

Remembering he had stayed up all night, Dusk felt the fatigue of no sleep starting to hit his body. Normally he would take a nap until noon and then go to bed at an earlier hour later in the day, but, with his discovery of sex, Dusk knew his weekend schedule would be very different.

“I’m still good to go,” Dusk replied as he breathed heavily. “Besides, a warm shower will wake me up.”

“That’s the spirit,” Gleaming replied as she pulled herself off of his body and looked to the sheets. “You go ahead and turn on the tap. I’m going to strip the bed.”

Nodding in return, both ponies quickly hopped to the floor. Putting a bit of speed into his steps, Dusk travelled out of his room and headed right for the bathroom.

“Hmm, give a stallion a taste of sex and he will crave it forever,” Gleaming chuckled to herself as she lit up her horn and began to pull the sheets off the bed. “Least you won’t think of some silly old tome in your spare time anymore.”

As the final bit of the bed was stripped, Gleaming’s ears perked up at the sound of water starting to run from the shower. She felt her body shudder, knowing very well a second round was going to happen. To go a second round with the youthful energy and eagerness of her brother… it still felt wrong to her, but at the same time it felt so right.

Tossing the sheets to the floor, Gleaming trotted out of the room and entered the bathroom, just in time to notice Dusk already climbing in. Following right behind him, she closed the door behind her, opened the shower curtain, and stepped into the warm shower.

“Mhmm, warm water feels much better now, doesn’t it?” Gleaming asked Dusk as both of them went silent and enjoyed the warm water raining down.

“Ahhh, soothing yet wakes you up at the same time,” Dusk replied with a sigh as he closed his eyes.

For the moment, Gleaming silently agreed with him and let the water beat against their bodies. In a matter of seconds, both their messy bed hair and sticky coats were flat, giving both of them a much more clean look. Both of their manes draped down over their eyes, and both of them quickly pushed the stray pieces to the side in order to look at each other.

“Don’t get too relaxed, Dusky,” Gleaming spoke up as she looked down and saw her brother’s semi-hard erection starting to go flaccid. “You still gotta go one more time with me.”

Quickly opening up his eyes, Dusk watched his sister turn herself around and lay on the wet floor. Once she was on the ground, she raised both her tail and rump in an effort to present herself to him. Once she was set, Gleaming meekly looked over her shoulder and wiggled her rump, causing the young stallion to smirk and move one hoof down to his crotch area.

As Dusk stared at the pussy before him, his eyes stayed widened. Staring at it for a few more seconds, Dusk’s mind quickly became a one way track as his erection returned to its fully hardened state.

I shouldn’t be enjoying this so such. Dusk’s thoughts played out as Gleaming swished her wet tail in front of him. Why am I enjoying this so much? She’s my sister, but I can’t help it.

“Don’t be too eager to stick it in and rut me quickly,” Gleaming suddenly spoke up. “You just came a few minutes ago, so you’ll be a bit more sore now.”

Nodding his head, Dusk knew she was right. As much as he wanted to dick her again, his penis felt more sensitive than before, and it even hurt a bit to touch. Of course he knew the feeling would subside after a few more minutes, and knew that even stroking it slowly would help. Yet even knowing such, Dusk wasted no time and moved himself into position. With Gleaming’s body low enough to the floor, and Dusk’s slightly smaller frame, he was still able to properly mount his sister. Rubbing his wet body against hers, Gleaming let out a blissful sigh and arched her back up slightly. As she did, Gleaming could hear Dusk’s back hooves fidgeting about so he could line his erection up with his target. For a few seconds she felt the tip of it brush against her vagina until the flared head finally managed to slip into her.

“There you go,” Gleaming moaned softly as she braced her body against the floor and moved her forelegs under her chin in order to rest her head on them. “Remember, nice and slow.”

Dusk mhm’d in return. Taking a deep breath, he tried to relax his eager mind. Closing his eyes again, Dusk laid his head against his sister’s back and stayed still for a few seconds, greatly enjoying the closeness of her body.

“Hey, sis?” Dusk spoke out as he nuzzled her back for a second.

“Yes, Dusk?” Gleaming asked back as she felt an inch of his erection slip into her.

“Mhm, you know I really appreciate this, right? I mean… I know this is technically wrong and all, but… I’m happy you’re letting me do this,” Dusk answered as he moved his front hooves close to Gleaming’s body to hug her.

“Anything for you, little brother,” Gleaming replied in a calm and loving tone. “Just remember, this has to be our little secret.”

Dusk nodded his head and Gleaming felt it against her back before Dusk pulled his head up and took another deep breath. As he did, Gleaming felt his body adjust, along with the penis inside of her as well. With momentum behind his body, Dusk slowly moved the rest of his wet penis inside of her.

“Oooohhh, feels just as big as before,” Gleaming cooed as she looked up through watery eyes at the wall before her.

Dusk didn’t reply and instead stayed quiet as his sister’s hot and rather sticky insides greeted his penis fully. With her already loosened up from their previous session, Gleaming felt no pain and Dusk felt no resistance as he felt his cock fully enveloped and his balls resting against her entrance. For a few seconds he let his eager penis tremble inside of her, hardening to the point it actually hurt, but slowly pulling back, Dusk rocked himself against his sister.

“There you go. Start nice and slow so you can enjoy it longer,” Gleaming spoke as Dusk placed his head against her back and kept gently rocking his body. With his penis slowly slipping in and out of her, Dusk could feel his sensitive organ still hurting a bit, but he ignored the pain and continued to do what he was doing.

Even as slow as he was going, Gleaming was enjoying the pace he was taking. In fact, she was enjoying it more now that Dusk was in control and actually staying as close as he was. The way his head rested against her body put her at ease, and she was actually thankful that he was her brother in that moment. The closeness of his own body against hers; there was no fear behind it thanks to their tight bond growing up, and Gleaming was happy she and him spent so much time together as siblings. It improved their bond, made them more comfortable around each other than most siblings were, and made the act of sex… slightly more romantic without the creepy implications behind it.

As seconds ticked away in the shower, both of them remained quiet. Both basked in the sweet sensation of the warm water beating against them, and Gleaming enjoyed the little rutting motions of her brother that slowly and surely got herself more aroused and ready for more fun. As she did, she let out small, lustful moans for her brother to hear, giving him an indication of how great he was doing.

Coming into the shower, Gleaming half expected Dusk to eagerly rut her and get off quickly, yet he showed restraint and went slow because she asked him to. He moved in a nurturing manner, continuously nuzzling her back and making her more horny and wet. Finally, after a bit, Dusk slowly pulled his body away, and from the way his erection moved inside of Gleaming, she knew he was raising up to stand on his back hooves. Eventually he did, and placing one hoof against her flank while moving the other to the wall for support, Dusk was ready to start properly rutting her. Still not saying anything, Gleaming waited for Dusk to start up. With a snort of his nostrils, Dusk began to buck his hips forward at a harder pace.

With the situation heating up, Gleaming relaxed her body and let her little brother work at his own pace. As much as she liked it, Gleaming debated seeing how well Dusk could multi task. Turning her eyes to the wall, she saw a bottle of shampoo sitting in front of her, and part of her wanted to ask Dusk to wash her mane and rut her at the same time. Thinking about the idea, even the thought of sucking him off while he lathered her up made its way into her mind, but as Dusk’s balls slapped against her body repeatedly, she decided against it. Maybe another time or another weekend when the parents weren’t around. Maybe even later on after both of them had a rest, but for now, Gleaming just wanted her brother to enjoy everything.

And enjoy it he did.

He never spoke as he rutted her, nor did he groan and whine about how sensitive and sore his dick was. Instead, he thrusted on, giving Gleaming much satisfaction and enjoyment. His movements were jerky and short, but every thrust went as deep as it could go inside of her. It was good, but Gleaming wanted a bit more from him.

“Dusk,” Gleaming spoke out, causing her brother to move his head up, but not stop his thrusting. “Would you like to do something else?”

“Sure, what’s on your mind?” Dusk asked in return.

“Have you studied the effects of what touching a unicorn’s horn can do at all?”

For a brief second, Dusk thought about what she was asking. Quickly recalling anatomy lessons in the castle, he smiled in return. Without a word, Dusk gave his sister one particular hard thrust and fully hilted his erection inside of her. Gleaming let out a stifled whine, but the feeling quickly ebbed away as Dusk brought his mouth to her horn and licked it.

“Oooh, I’ll take that as a yessss,” Gleaming spoke with a sigh as the slippery tongue moved from the base of her horn all the way to the tip.

Though she spoke, Gleaming felt her entire body seize up and couldn't find the energy to suppress a building moan. As Dusk's tongue repeated the motion, the moan escaped and the tip of her horn started to spark with energy. Watching it spark from so close, Dusk licked the tip of it and pressed his tongue against it in order to cancel it out.

Oh wow, even knows how to cancel out magic as well. Gleaming's thoughts buzzed as Dusk continued to lick away, making her legs shaky, like wet noodles, and putting them on the verge of buckling. "N-not bad, Du-ahh!"

Cut off mid sentence, Gleaming moaned loudly as Dusk ground his hips against her body and found his tongue licking at the base of her horn, making it near impossible for her to concentrate on anything happening. Once Dusk was done playfully grinding his hips against her, he started to pick up speed for thrusting. While he made sure his thrusts were fast and jerky, Dusk moved his tongue at a much different pace. He kept it slow, methodical, agonizing, yet so good that Gleaming didn't want him to stop. He swirled his tongue at the base of her horn and moved up, always making sure no spot was left untouched. When he came to the tip, he gave it a kiss before traveling back down.

Where did you learn to lick a horn so well? Gleaming silently asked herself in her mind as she bit her lip, not being able to mutter any proper words even if she wanted to.

After a few minutes of pleasurable licking, Gleaming found Dusk starting to rut faster and lick less. Thankfully, with all the licking and rutting Gleaming was receiving, she knew her own climax was very close.

"I'm almost there, Dusky," she moaned out, making Dusk snort hot air out of his nostrils and even made him rut her harder.

As her horn sparked with life, Dusk decided to leave her horn alone and settled for focusing purely on bringing her sexual satisfaction. Keeping his thrusts short and jerky, Dusk purposely made sure his medial ring would enter and exit his sister in quick motions. Remembering how good it felt last time, Dusk grinned as Gleaming moaned and enjoyed the feeling of it herself.

Finally it got to the point where Gleaming's moans grew erratic and her backside felt like it was on fire. As much as she enjoyed being dicked like she was, she was amazed and happy Dusk hadn't came inside of her yet. Even as tired and close as he was to an orgasm, Gleaming would finish first.

"Almost there... Almost there... oh gosh, almost there," Gleaming panted wildly as she looked over her shoulder and saw Dusk's eyes clenched tightly shut.

Hearing that she was close, Dusk gave off another snort of air and thrusted his tired hips as fast as they could go. Though the increased pleasure would last for only a few seconds, it was going to give Gleaming a very much needed finish.

Her body buzzed and her climax peaked, and Gleaming could only let out little moans of ecstasy as she came hard.

For Dusk, his eyes opened as he felt her insides tighten around his erection, and he was sure the area around it got much warmer for him. Dusk found himself ecstatic as he realized he outlasted his experienced sister in sex. Of course, with how close he was to joining her in blissful climax, Dusk knew he was lucky to have outlasted her.

With his orgasm starting to get dangerously close, Dusk plowed on, feeling everything in his body tense up for the final moment. As he started to cum, Dusk let out a whine and stopped moving for a second, keeping himself buried inside of her. After a few pulses of his penis, Dusk pulled his erection out and smiled as he watched the final bit of his leftover semen seep out of the tip. Even noticing Gleaming's own juices coating his shaft, Dusk couldn't help but feel a sense of pride for what just happened. Watching it for only a second, he pushed his erection back in and gave off a few more thrusts before he stopped.

"Oooohhh, that felt... grand," Gleaming moaned out, both ponies breathing heavily as the act had finally come to a stop.

"Gotta agree with you, sis," Dusk huffed as his erection started to deflate, making him pull it out. "Gods, I could totally get used to this."

Sitting himself down on the floor, Dusk's eyesight started to blur and his head throbbed. His body was screaming at him to go to bed, and Dusk knew he couldn't argue with it.

"Glad to hear you enjoyed yourself," Gleaming spoke out as she pulled her tired body off the flooring. "I know I enjoyed every second of it."

Both ponies looked at each other for a few seconds and smiled before Gleaming turned her eyes to a nearby bottle of body wash.

"You still got enough energy to help me wash my body, Dusky?" Gleaming asked as she lit up her horn and grabbed the bottle.

Though he was tired, Dusk smiled at his sister and responded.

"After everything that you gave me, I would be happy to,” Dusk replied as he turned his attention to the pink bottle, but stopped as a thought came into his mind. “Umm, sis? Before I do that, can I ask you something?”

“What’s on your mind, little brother?” Gleaming asked as she wiggled the bottle in her magical grasp.

“Well, I know this is our little secret and all… but I’m curious about Bolero,” Dusk spoke back, causing Gleaming to straighten up. “I know you two are a couple and all, but wouldn’t keeping a secret like this from him be bad for your relationship?”

Gleaming went silent and her expression went neutral as she stared and pondered the words her brother spoke.

“You have a point, and it’s a fair one to ask, Dusk,” Gleaming spoke in a calm voice. “And it is one I’ll answer for you. Right now our relationship is in a bind.”

“Oh?” Dusk spoke out.

“I’ll save you the finer details, but let’s just say we agreed that we need a break from each other and are deciding to see other ponies for the time being. We still converse, but for me and him, we are, in a way, taking a break from each other.”

“Hmm, I guess that answers my question,” Dusk replied as he thought about recent times and did notice that Bolero was a little distant from Gleaming. “Still, you two always seemed like a happy couple. I hope you don’t end up fully splitting.”

While Dusk was content with the answer, part of him wanted to learn more about the situation with Gleaming and Bolero. Yet, knowing it was not wise to go into matters that he wasn't fully familiar with, Dusk said nothing more.

“It’s nice to see that you care for us,” Gleaming replied with a smile and a tilt of her head. “And don’t worry about us fully breaking up. Once we even out some personal things between us, I’m sure we'll be together again.”

“Alright, that works for me,” Dusk replied with a smile of his own before he turned to the bottle. “So… Shall I help you wash up?”

“I would love that, Dusk.”