Sibling Secrets

Twilight woke up again, her brother’s hoof lazily wrapped around her midsection. Snuggling just a bit closer to him, she cracked an eye open and saw it was still nighttime. With a small smile, she pulled his hoof tighter around her and then teasingly pressed her flank into his warm crotch. Wanting to keep things a little modest, she kept her tail between his sheath and her marehood. She closed her eyes to fall back to sleep, but perverted thoughts of what had happened just a little while ago kept replaying in her mind.

She had taken a sort of perverted pleasure from the sensation of him cumming inside her throat and of how she had serviced him just like a good little slut would. Twilight shivered in excitement as she remembered how her brother’s hot sperm had dripped down her face, matting her fur and soaking the sheets. Part of her had wanted to let his cum dry on her face, showing that she was his, but the rational part of her had overcome that animalistic desire.

Biting her lower lip, Twilight felt another shiver of excitement run down her spine as a tantalizing idea popped into her mind. She’d read in the past that stallions could pop random boners in the middle of the night, especially when it came close to the morning, so maybe she could coax her brother to… perform in his sleep, just for her. She felt her slit grow wet at the mere thought of sliding his thick cock into her. She knew that his sheer size, which had barely been able to fit in her mouth, would make her the happiest mare in Equestria if she could just get him to fuck her.

But what about Cadence? I told Shiny that this would be a one-time thing, but I really want him to rut me… She paused as she felt a few drops of her arousal slip out of her, making a trail down her inner leg and soaking into her tail. Suddenly, Shining twitched in his sleep, his hind legs gently bucking into her flank, unknowingly parting her tail and pressing his sheath right up against her opening.

Twilight’s eyes shot open, barely being able to bite back a gasp. She felt little Shiny start to emerge from its hiding place and she had half a mind to try and slide away, but her horniness was at an all time high, especially since she hadn’t gotten any relief from her brother after all of her hard work. Throwing all caution to the winds, Twilight figured that so long as they didn’t fall in love with each other or anything like that, his marriage with Cadence would be okay. Besides, this was just to help herself get off; it wasn’t anything more than just simple pleasure between two adults.

Keeping that thought in mind, Twilight carefully pulled her tail out of the way with her magic, for what she was about to do would have rendered it soaked with their juices if she had kept it in place. She used her magic to spread her butt cheeks as she slid down a little further, smiling when she felt the opening of his sheath press up against her sopping slit. She wiggled her hips back and forth, gently using her magic to tease and massage his balls.

Though nothing of note happened for the first few seconds, she was determined to not give up. She could have left the bed and clopped off back in her own room, but she didn’t want to leave her brother’s warmth nor did she want to wake him up. A small jolt of excitement shot through her when she suddenly felt him twitch, his length slowly starting to grow. Keeping her butt cheeks held apart, she used another spell to spread her labia, giving Shining’s dick unfettered access to her love tunnel. She felt his dick push against her opening, but much to her dismay, he wasn’t hard enough to penetrate her.

We can easily fix that little problem… Twilight thought with a naughty grin as she tightened her hold on Shining’s foreleg. Channeling her magic into her horn, she massaged his dick, stroking it up and down all while paying special attention to the sensitive tip.

After a few seconds, Twilight felt her brother tense up behind her and his grasp on her suddenly tightened. Before she knew what was happening, his bottom hind leg had slipped around her flank and Shining quickly rolled onto his back, pinning Twilight belly up to his chest all while keeping his stallionhood poised at her entrance.

“Hehe, it seems somepony is a little horny tonight, isn’t she?” Shining softly asked into his sister’s ear. He gave a soft chuckle when he saw her ears fold flat in embarrassment, prompting him to rub her belly reassuringly. Every time he rubbed her ticklish spot right in the middle of her belly, her right hind leg would kick and twitch on its own, something he loved making her do.

Shining kept Twilight’s forelegs pinned to her chest, keeping her from swatting his hoof away. Whenever his hoof tickled her just so, her bucking leg would stretch her slit a little wider, letting her brother’s length begin to push inside her opening. Biting back a moan, she said, “…Maybe… maybe just a little…” She gave him a gentle nuzzle. “I’m sorry, I know I said helping you was just a one-time thing, but I’m so horny I can’t think straight! I didn’t want to wake you up, but now–“

“Shhh…” Shining whispered, returning his sister’s nuzzle. “Listen, since you helped me out, it’s only fair that I help you out, right?” He waited for Twilight to respond, but no response came. “Right. It’s pretty obvious you’re horny from the way you’re dripping all over my thick…” He gave a small buck of his hips, teasingly her vagina with his dick. “Hard…” He gave another thrust, this time nearly penetrating her. “Cock!”

Feeling Twilight shiver in anticipation, he pushed her down while putting more and more pressure on her opening, and a few seconds later, he slid inside her. He kept his sister safely atop his chest as she panted, and after a gentle nod from her, he continued. Shining pushed another couple of inches inside her tight pussy, smiling as he felt it repeatedly clamp and unclamp all around his throbbing length. Pulling back until just his tip was inside, he slowly slid back into her, right up to his medial ring. Increasing his pace with each thrust, he had his sister panting and moaning wildly within only a mere minute.

“Shiny, I’m so close, I… I…” Twilight panted, pressing herself deeper into Shining’s embrace.

“Wow, already?” Shining asked in surprise, never letting his pace falter. “Damn, you’re quick!” With a sly smile, he sent the other hoof that wasn’t keeping Twilight’s fore legs pinned down to her clitoris. Just a few experienced twirls from his hoof was all Twilight needed to cum, and cum she did. She squealed so loudly that Shining had to yank his wet hoof free from Twilight’s pussy and stuff it into her mouth. He almost yelped when she bit down on it but it was a small price to pay to not get caught by their parents.

He stopped thrusting as Twilight rode out her orgasm, feeling her juices slip out of her squirt by squirt. She flailed around on top of him, forcing him to hold her tighter when she arched her back so she wouldn’t slip off of him. Several moments passed before she relaxed against him. Pulling his hoof away, Twilight panted loudly as she relaxed into her blissful afterglow.

“That feel good, little sis?” Shining lovingly asked as he started rubbing her belly again.

“Oh yeah…” Twilight murmured. Her eyes shut, she started to pull him out of her, only for her to feel him stop her.

“Oh, we’re not done yet…” Shining said, his voice dripping with lust. “If you start something, you gotta be able to finish it…”

“Heh, yeah?” Twilight asked, her curiosity piqued. “What do you have in mind, big bro?”

“This.”

Before Twilight could ask what he was talking about, she felt his magic surround the two of them and lift them up into the air. They slowly flipped over so that their backs faced the ceiling now, and Shining floated them to the edge of the bed. He lowered the two of them until their hooves hit the floor, Twilight’s fore legs perched up on the bed. Shining had remained inside her the entire time, keeping his medial ring firmly pressed up against her soaked opening.

Shining adjusted his position behind his sister, standing up on his hind legs. When she started to push herself up off of the bed, he gently pushed her back down with a hoof and gave her a stern yet caring look that said she should obey him. When she laid her front half back on the edge of the bed, he walked the two of them forward until Twilight’s hind legs hit the side of the bed, and then he laid himself over her, using his weight to keep her pinned beneath him.

“Shiny?”

“Yeah?”

“I want you to rut me so hard that I’ll be little more than a little quivering mass of marecum…” she said, her voice dripping with lust for her brother’s cock and seed.

Pulling back to just the tip like before, he thrust himself back inside her, this time pushing his thick ring many inches inside her, nearly seating himself balls-deep. Twilight couldn’t help but moan at being stuffed full so quickly, so she levitated one of his pillows over to her to stifle her moans. When Shining saw her bite down on it, he slid back then rammed himself back inside her, over and over again.

Settling into a steady rhythm, he nearly came a couple of times, but right before he tipped over the edge he would slow his pace, knowing full well that edging a few times would result in a much greater orgasm. He laid a gentle kiss on the back of her neck every so often, letting her know that he was enjoying himself just as much as she was.

Even though he would have loved for this to last forever, he knew all too well that all good things must come to an end. His orgasm had been building up inside of him for quite a bit of time, but he’d used all of his stamina to stave it off. He knew he’d break any second now, so after nibbling on Twilight’s ear for a few seconds, he moaned, “Where… where do you… want it?”

“Inside! Fill me up, you nice, thick stallion…” Twilight moaned back, thrusting her hips as hard as she could into her brother’s.

“You got it!” Shining thrust into Twilight as hard as he could, this time finally stuffing himself all the way inside her. His balls slapping against her clitoris with every thrust now, he used his magic to rub it as well, and right as he felt his balls start to twitch, he felt his sister shudder underneath him as they both came together.

He wrapped his fore legs around her quivering form, keeping himself lodged as deeply inside of her for as long as he could. He felt Twilight’s pussy spasm around his thick cock, only noticing that her passage was getting wetter when he thrust into her a couple more times. Shining shot several bursts of cum inside his sister’s pussy, so much that a good amount of it slipped out from around his flared head and medial ring to drip down their legs onto the floor.

Feeling his orgasm die out, Shining slumped down on top of Twilight from sheer exhaustion. It took the two of them only a couple of minutes to get their breath back, and when they did, Shining gingerly stood up off of her and slid himself out, smiling as he watched the mixture of their cum ooze out of Twilight’s slightly gaping pussy. He gave both of her butt cheeks a gentle and loving kiss before he hopped back onto the bed, his dick shrinking back into his sheath.

Slumping back down onto the sheets, he used his magic to lift Twilight up and back into his embrace. “That good enough to satisfy you, sis?” he asked with a chuckle, scratching her right behind her ears.

Twilight smiled and angled her head a little to help get his hoof in the right spot, and when it did, she sighed happily and snuggled closer to her big brother. “Oh, you have no idea…” she murmured sleepily, laying her head on Shining’s exposed chest. She lit her horn and pulled the sheets back over them, and just before she closed her eyes to fall back asleep, she whispered regretfully, “Too bad this was only a one-time thing… I really wouldn’t mind doing this again…”

Shining chose not to respond, only listening to his sister’s breaths slow down before she slipped back into the world of dreams. He ran his hoof through her mane, brushing it behind her ears, and as he fluffed the pillow under his head with a small spell, he thought, Well… what’s stopping us?