Siblings with Benefits- Commission for Scarlett Sound

Story by Omega Swiftwing on SoFurry

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#2 of Commissions

A mare finds out that sometimes family can be there for you better than anyone else.


Scarlet Sound, highly successful pegasus musical artist, found her schedule lacking. She had nothing to do today, no interviews, no promotional work, there wasn't a gathering of her fans, or even an event for her to attend. She sighed and lay upon her bed with a huff, she didn't even feel the need to make new songs today. Perhaps she had been working too hard, and had stressed herself out, she thought. She new she could appear somewhat lazy, but she always made certain to do anything that needed, really needed, to be done before allowing herself to 'be lazy.' This attitude had given her plenty of free time, she got her work done in a timely fashion without stressing the unimportant things. So why did she feel so tense and anxious now? She rolled onto her side before spotting a half folded receipt on her nightstand. She quirked an eyebrow before a smile crept onto her face.

Upon remembering the receipt and what it was for she reached under her bed and retrieved a rather naughty item, her new sex toy, from a shop that had just opened up in town. One of the staff there knew who she was but didn't bring it up, apparently having a head for discretion as one in his position should, but he did mention that if she were new to the 'art of collecting erotic toys' that she should start with something simple. Having followed his advice she pulled the toy out of it's box and smiled. It had been a while since she had pleasured herself and when better than on a day with nothing else to do she thought happily, giving the toy a few thoughtful strokes, it was nothing fancy like that dragon store she had heard about, just a simple stallionhood shaped toy, not overly large like the more 'experienced' customers went for, but nothing too small, she noted. She pulled the lube she had bought at the same store out and began to prepare the toy for it's purpose, her nethers already becoming damp at the thought. Scarlet laid on her back, wings spread, as were her legs. She smiled as she lubed up her toy, and began rubbing it against her slit. She moaned softly and blushed under her red fur. She shivered and smiled, it felt good to have something other than her hoof down there.

Scarlet bite her lip and smiled before arching her back and moaning out as she slid the false flare into her soft depths, gasping and moaning as she pushed it deeper and deeper, blushing harder, shaking with pleasure as she toyed with herself slowly. Finally, after several slow, blissful moments, she had taken the whole thing, giving a soft shiver of pleasure, grinding a bit against the base of the toy, moaning out as the tip ground into her ever so slightly. She pulled the toy back, gasping softly, before pushing it back in, feeling the medial ring spreading her entrance, on it's way out and then back in. She bit her lip and smiled, before she began pumping the toy in and out of her slowly, panting and moaning, her hips twitching as she pleasured herself at an ever increasing pace, soon she was arching her back a bit, bucking her hips up against her own hoof as it pumped the toy harder and faster into her tight, warm tunnel.

It was then that her brother, Safe Stead, a Blueish gray pegasus stallion, walked into the house. He blinked a bit as he saw his sister's things on a counter near the door. Usually Scarlet Sound wasn't home at this particular time, but then again it had been a slow week, perhaps she had the day free? Safe Stead could hear the muffled voice of his sister coming from up stairs, it sounded like she was in some sort of pain to his ears, he called out to her several times, before becoming worried. Without a second's hesitation he pushed the slightly cracked door open, and froze. There was his sister, in broad daylight, shoving a dildo into her tight pussy. Safe Stead tried to turn his head away, to back out slowly, to at least freak out like a brother should when they catch their sister playing with herself. But all he could do was start, dumbstruck, as his sister shoved that rather large toy in and out of her alluringly wet slit. She was moaning at the top of her lungs now, ramming the toy in over and over at a quickening pace, not realizing she was giving her brother an erotic show. Stead felt his sheath stir, felt his member harden and extend, leaking pre. He hadn't been with a mare in a long while, and now here one was, giving him one of the hottest shows he had ever... 'Snap out of it she's your sister!' he thought to himself before he tried to turn and leave. Before he could even move, Scarlet noticed him.

"What the hell Stead! How long have you been standing there?!" Scarlet Sound cried out, trying to cover herself, giving a shudder as the dildo slipped out of her tight vagina and bobbed a bit as it hit the bed. Stead knew full well his sister was blushing as hard as he was, it was hard to tell under her crimson fur, but he saw it plain as day. He tried to speak several times but found himself at a loss. Scarlet looked down as his cock twitched and gasped softly. She had seen it before, when they were much younger, but she had never expected her brother to be so hung. He was easily bigger than her toy, and she found herself growing wetter under her hooves as they covered her still slightly gaping hole. She too was at a loss for words, the two siblings unable to look away for the other. Scarlet blushed even harder as she lightly rubbed herself. "...You uh... you wanna, join me?"

Stead blinked a bit before looking back up from his sisters wetness. "Yeah sure... wait what?!" Stead was completely stunned, his jaw gaping as he processed his sister's words. "Y-you want me, your brother, to, to..."

"To fuck my brains out, yeah..." Scarlet was obviously embarrassed, but she was still horny, and she was still riding the adrenaline from getting caught. She knew this was taboo, she knew it would be called wrong if anyone found out, but at that moment, she wanted her brother, in a way a sister never does.

Safe Stead looked at his sister and swallowed the lump in his throat, before coughing under his breath a bit. "y-yeah sure... I mean, if you were being serious, Scarlet?"

In moments the siblings were both on the bed, making out like they were lovers. His cock ground hard against her still soaking wet pussy, making them both moan out for one another over and over again, their tongues danced around one another as they pressed and moved against each other's bodies. Their breath became hot, their fur tickled the other, until it finally happened. With a groan, Stead felt his tip press against his sister's hot nethers, and he looked to her, getting a smile and a soft nod from her. With a breath he didn't realize he had been holding, Stead pushed in past his sister's warm, tight entrance. They moaned out together in sweet bliss, Scarlet Sound panted hotly as her brother slid into her slowly, feeling every throbbing vein covered inch, she could feel his pulse through that shaft, feel it twitch each time her walls squeezed his length. He felt her legs brush along his sides as she let him bottom out inside her, he looked down at her and smiled before she leaned up and resumed their kiss, her front hooves pulling him down against her, letting him grind deep against her. Her depths massaged and gripped at his shaft as she moaned into his mouth over and over. After a few moments, he began to move, panting softly as he started a modest pace, as if he were 'testing the waters' he had heard other males say... his test left him nearly breathless, his sister's depths felt amazing, and he was no virgin, no he had been with mares before, but something about the way she gripped him, about the way her softness squeezed and massaged him. It was all amazing, and if this had been his first time, he would have embarrassed himself with an 'early arrival,' another witty term he had heard from other stallions.

Scarlet trembled and whimpered as her brother thrust into her slowly, over and over, his hips pushing him in and pulling him out, each inch was soon coated in her slick juices as he began to move faster, then faster still, each thrust was just a little different it felt. Each motion unique from the last until she was moaning and panting, her brother seemed to know exactly what buttons to push, and where those buttons were, each thrust made her back arch and her tongue dance all the harder across his. Safe Stead steadily picked up the pace, making his song making sister sing those sweet tones into his ear, as he broke the kiss and nibbled along her neck, this was no longer sex between siblings, as she had intended in her heated moment, no, this was her brother, making love to her better than any stallion had in the past, his shaft seemed like it was made to fit her depths like a key fit into a lock. She couldn't think with that thick shaft entering and leaving her, filling her to her very core before leaving her almost desperately empty, such agonizing pleasure at such a steadily climbing pace, bringing her one step at a time up the mountain that was her climax. It was unlike anything she could have ever done herself, or with another male. She merely let herself allow the feelings of pleasure wash over her and take her entirely, moaning and gasping, clinging to her brother's head as his tongue and teeth played along her neck, leaving her fur matted where it lapped, leaving her flesh to tingle a little from where he bit and nibbled. His hips became more and more like a blur with each thrust as he began to crave the feeling of her rubbing along his length, squeezing and gripping on his cock, it was so much better than his hoof, than the mares he had dated, it was even better than his wildest dreams. He panted and pulled away from his sister, making her whimper, before he lay on his back, his cock throbbing before her. "Let's see how we taste, sis. Then we can have some more fun." He said with a blush. His words were lewd, but he was clearly still getting over the fact that his sister was the best mare he had ever been with in bed.

Scarlet smiled softly before climbing on top of her brother, offering him her soaking wet pussy as she began to lap and nuzzle his cock, moaning softly in pleasure. He smiled at the pleasure and licked along her tight slit, letting his tongue drag up past her slit, before her voice stopped him. "Don't do that Stead, I don't do anal..." Stead sighed a bit, but decided not to push his luck, after all, his sister was a hot musical artist that any stallion would kill for the chance to be with, and here she was, letting him eat her out while she lapped and licked on his cock, his thoughts were cut short as his sister wrapped her lips around his hard throbbing cock, suckling on the tip firmly. He groaned out in pleasure and arched his back, before burring his face into her, licking and lapping at her wet pussy, pushing his tongue up into her, wriggling his tongue against her walls, never licking more than once in the same place. He could tell he was doing a good job, each time he hit a spot that made her moan, she suckled harder on his cock, like it were a reward. She slid further down his shaft and began sucking him off properly. She smiled around his cock as she felt him double his efforts, lapping over and over into her depths like that was his purpose in life, he was learning too, she moaned repeatedly as he licked at her walls and entrance, hitting all the right places to make her squirm. Her legs shook after a bit and she pulled off of his cock and turned around above him, smiling down at him. Before he could say anything or even breath, she had her mouth over his, and her tongue inside. She smiled against his lips before lowering herself down onto her brother's hard throbbing cock. She felt that penetration and instinct took over, she felt her body move, seemingly on it's own, and she was just along for the ride, and she was loving every second of it. Her hips slammed down against her brother as he moaned again and again into her mouth, her mane falling around her face and his as the lovemaking turned more primal, more, lustful.

Safe Stead began pumping his hips up to meet his sister as she slammed down on him, his cock was throbbing so hard, so much harder than it had ever before. What was this pleasure, and why did it come from his sister he thought. But these thoughts were pushed away in a breath as he moaned out, those soft, warm, wet walls seemed to wring his thoughts away, like his mind were now in his shaft, and that tight slit was milking it away. He got lost in the act, and thought no longer as he fucked his sister, thrusting up against her hard riding without hesitation, without a care, this his sister, and for the moment, she was his, and he was hers. After, before, nothing mattered but the right now, the now where his sister was milking his shaft with her pussy. The now where her lips pressed against his and where her tongue writhed and grappled with his own. He had often thought if the mare of his dreams before this, but she was melting away in his mind's eye, and slowly being replaced by the mare he had known all his life, who had been there for him through good times and through bad, the mare who shared his blood, now he shared her bed, and her pleasure in this forbidden pleasure. Safe Stead kissed Scarlet Sound all the harder before breaking it and pulling her close, so he could speak into her ear in a low and seductive voice. "Let me take you, like we were breeding." He smiled as her body stiffened and her insides trembled, leaking hotter around his cock.

She pulled away from her brother, and for a moment he feared he had gone to far, and scared her from her own desire. But when he looked up, he saw her, on all fours, tail flagged, wings spread in a display he had seen many a time, but not with such beautiful scarlet wings, her voice ran over him like silk. "Then come and claim me, my stallion." She didn't have to wait long, as Safe Stead mounted her, locking his hooves around her as he drove his achingly hard, throbbing cock back into her, groaning out. Something about this position always drove him to go harder, to fuck deeper, to feel greater pleasure from his partner and give it back tenfold. The pleasure the two of them felt was unimaginable as his hips began thrusting, hard and fast, slaps echoed off the walls and filled their ears along with the moans they had become so familiar with, moans of pleasure they should never have heard , save for the muffled cries from another room. He lay atop her, thrusting harder and faster, driving his length as deep as it could go with each eager, loving thrust. He couldn't see his sister in those moments, only a mare, the mare he desired most in life, the mare he wanted more than anything else in the world, and he couldn't have her, save for this moment so he thought. 'This is the one time I get to be with her like this, and I want to make the most of it' he thought as he panted and moaned, driving into her over and over again.

Safe Stead moaned over and over into his sister's ear before nibbling on it and giving a dominant groan. "I'm gonna cum, I'm gonna cum inside you Scarlet!" he panted out to her, his thrusts slowing down as he focused on the pleasure, the rising lust and desire in his mind overloading him as he drove his cock home again and again, every inch spearing into her depths fully, his cock coated in her juices and his pre as the two fucked like they were trying to breed. He expected protest, he expected her to pull away or make him pull out. To his surprise, he felt his sister shove back against his thrusts, moaning out in her beautiful voice as loud as she could.

"Do it! Push me over the edge Stead! Let's cum together!" Her walls milked his cock as she shoved back over and over, trying to force him deeper, feeling his heavy balls slap against her each time he rammed into her, he was literally giving her everything he had to offer, and she loved every second of it. She slammed back harder and harder until she felt it, his cock tensed, his voice cried out her name, and she cried out his as her body reacted to the feeling of shaft jerking inside her, feeling his length swell with his lust before she screamed in pleasure, her orgasm rippling through her entire being to her very core as her tunnel gripped and massaged Stead's cock, feeling the tip fire rope after rope of his sticky, thick cum. He came hard, and filled her deep, the seed pumping into her at an almost alarming volume. He was like a hose, with an endless stream of that liquid, that hot, sticky liquid.

He ground harder against her as he came inside her, trembling and straining with his lust and pleasure, before the two of them collapsed, panting and tired. Cum and slick juices oozed out from around his cock as it began to soften, and slide out of her. The two looked at each other with soft smiles as his length finally slid free and retreated into his sheath. Her gaping pussy drooled his seed as her chest heaved with heavy breathes. She couldn't believe how much there was, it was like a flood escaping her body. "Damn Stead." She panted, giving a soft chuckle. "A bit pent up much?" she smiled before moaning out a bit, feeling him nuzzle against her neck and kiss it. She turned her head and begun to kiss her brother, much like they had been before their baser instincts had overtaken them. She turned to face him and pressed close, her needs sated as were his, they were content to cuddle and enjoy one another's warmth in the afterglow. Scarlet Sound broke the kiss and laid her head against his chest, sighing happily. "I didn't realize just how badly I needed that."

Safe Stead smiled and nuzzled into his sister's crimson red fur. "I know what you mean, it's been so long since I've been with someone. I had almost forgot how it felt, but with you, it felt so much-"

"Better? I know right?! I, I wonder why." Scarlet wondered out loud, before sighing and pulling closer to her brother, his wings folding around her as the two snuggled in a gentle, loving embrace. The two looked up before noticing how low the sun had gotten. "We wasted the whole day?" Her voice was a mix of impressed and slight disappointment. On the one hand, she was impressed (and a little turned on) by how long her brother had lasted. On the other hand, if she had wanted to do anything with the rest of the day, she had missed her chance. She sighed before looking up at her brother.

"I know what you are going to say Scarlet, and I agree..."

"...umm okay, I expected you to be a little more against this whole thing but, hey as long as you are enthused why don't you go start us a shower for round two?"

"Okay, I- what?! You mean, you want to do it again? Tonight?!"

"Yeah, isn't that what you thought?"

"N-no, I thought you were going to say something about never doing this again!"

"Pffft, fuck that! That was way too good to only do once. I mean yeah, we can't do this forever, we need to date outside the family, but I mean, we're still young, we got plenty of time for that... and besides, if we don't run this out of our systems anybody we sleep with is just going to seem so... sub-par." Scarlet smiled playfully at her brother before kissing him again, then shoving him just as playfully. "Now go start that bath! You smell all sweaty!"

"Like you don't?" Stead shoved back playfully.

"I am all sweaty, but I don't smell, like you do." The two began shoving back and forth, before they began trying to pin one another. A game came of it, the first one to get pinned would run the bathwater. Safe Stead was getting close to victory when he felt his sister's soft fur against his sheath and balls, her leg. "n-no fair!" he exclaimed before giving her a taste of her own medicine. The two of them went from laughing and shouting at each other to moaning again, each trying to use the other's sex against them, they're hooves and legs going from brushing the other's away and masturbating the other nethers. Soon enough his cock was rock hard again and she was soaking wet, without warning they began kissing again, as his cock slid back into her tight slit.

Hours later, as the moon shone down from the middle of the sky, the two exhausted siblings stirred, having fallen asleep after their second wind. The two, fur matted, limbs heavy and sore, climbed out of bed and started a bath. The tub wasn't meant to have enough room for two, but they managed to fit into the relaxing water, where they began scrubbing one another, like they had done when they were children. The two smiled as they rubbed away the evidence of their activities. The scene looked almost innocent if the two weren't adults, who continually let their hooves wander where they would not normally stray. Despite the taboo nature of what they had just done, the siblings were quite comfortable coming to terms with it, perhaps too comfortable. But they had already made their peace with it. Afterwards for months, maybe longer, there was barely a day where the two didn't share a bed, they slept snuggled against one another, much like they had in their youth, but unlike then, they were usually winded and sated.

Scarlet's songs that week came out almost flawlessly, the album seemed to flow straight from her soul into her microphone. Every note seemed to be precisely where it needed to be to ring in the hearts of her fans. It would be one of the best sellers of all time, so her publicist said. Her fans thought so to, but they couldn't figure out why she said she couldn't have done it without her brother, Safe Stead. And every time she did, it brought a blush to his face.