RWBY One-Shots (18+)

Harry Potter - J. K. Rowling RWBY Percy Jackson and the Olympians - Rick Riordan Masters of Sex
F/F
F/M
Gen
M/M
Multi
G
RWBY One-Shots (18+)
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A First Time for Everything (Ruby x Yang) [FUTA/FUTA]

"C'mom, sis."
Yang teased, gently pushing Ruby against the wall of the dorm, slowly reaching a hand down the front of the redhead's pajamas as she did so.
"I know you need this just as bad as I do."
"Yang-"
She said, her voice catching in her throat as she felt the blonde's fingers begin to roam over her flaccid shaft.
"I-I don't know..."
But despite her misgivings, Ruby felt her dick hardening in Yang's grasp, straining against the tight fabric of her sweatpants.
"I can feel you getting hard~"
Yang cooed, rubbing her sister's balls gently.
Moaning, Ruby caught sight of the bulge forming in her sisters skin-tight workout shorts, Yang's cock pressing against the dark fabric.
Ruby knew her sister was right, she really did need this.
"Alright."
Ruby said, gently removing Yang's hand from around her dick.
"I do need this."
Yang smirked, the two had never seen each other naked before.
"On the count of three?"
She asked, gripping her shorts gently with both hands.
Ruby nodded.
"One... two... three!"
On the count of three, both Ruby and Yang pulled down the garments covering their groins.
Ruby stared as Yang's dick, fully hard at 7.2 inches, sprang free from the confines of her shorts.
Pyrrha had mentioned that Yang was fairly large, but to Ruby that seemed like an understatement.
Smirking, Yang reached forward, gently caressing Ruby's fully hard 5.7 inches, running her thumb gently up the side oh the shattering , chuckling softly to herself as she felt Ruby shudder slightly.
"Mmm..." Yang murmured, kneeling in front of her sister, kissing the tip of Ruby's dick gently.
"Shirt off."
Yang said, tugging at her sister's top.
Ruby complied, pajama top joining her pajama bottoms in a pile on the floor, exposing her small, perky breasts.
Reaching up from where she knelt on the floor, Yang cupped one of her sister's breasts gently, using her other hand to slowly stroke the redhead's cock.
"Yaaaang..."
Ruby whined pleasurably,
"J-just suck it already..."
"Alright, alright."
Yang said, grinning as she gave Ruby's right breast a gently squeeze,
"So much for foreplay."
And slowly, she took Ruby's dick into her mouth,
Ruby covered her mouth as she let out a stifled groan as she felt her sister's warm mouth engulf the first few inches of her futa dick, a shudder of pleasure rolling through her body.
Yang wasn't used to Ruby's lack of size, the redhead's dick bing much smaller than Blake's, Nora's, or even Coco's for that matter. This, combined with her ever improving skills when it came to giving head, made progress pretty easy as she bobbed her head back and forth, eyes closed, taking in a little more shaft each time.
Putting one hand on her sister's head, Ruby sighed happily, feeling Yang's tongue sliding over her shaft. This was pure bliss.
Yang began making faint choking sounds as the tip of Ruby's dick began brushing against the back of the blonde's throat with each movement of her head, causing Yang's eyes to water slightly as she took 5 inches of dick into her waiting maw.
"Oh fuck~'
Ruby mumbled, rubbing Yang's neck with one hand, caressing her own scrotum with the other,
"You must really like the taste of my dick, huh?
Yang's reply was muffled by the shaft in her mouth but she nodded, reaching up once again to rub her sister's perky tits.
The blonde quickened her movements, sliding her tongue over her sister's shot as she took her to the base each time, Ruby's balls slapping gently against her chin as the redhead began to reciprocate, thrusting her hips forward slightly to meet Yang's motions.
The suddenness and aggressive nature of the rapid thrusts caused Yang to choke and splutter somewhat for real, feeling her face being fucked.
Ruby was panting heavily now one hand gripping a fistful of Yang's hair tightly as she thrust, the other pressed hard against the wall. She began to moan softly, her body starting to sweat as she moved her hips in time with her sister's movements, forcing the blond to take all 5.7 inches of cock into her mouth each and every time. Ruby was close.
"Oh fuck~"
She swore, biting her lip as she felt the familiar feeling building deep within her.
"Oh fuck, Yang! I'm cumming!"
Holding the blonde in place, Ruby came harder than she ever had in her life, load after load filling Yang's mouth as the blonde swallowed each one.
When the rush was finally over, Ruby pulled out of her sister's mouth and sank onto the floor panting as the last few traces of cum leaked from the tip of her dick.
"That was... amazing."
She said, kissing Yang's cheek.
"Fuck..."
Yang panted, massaging her throat gently as she licked the remainder of Ruby's cum off her chin,
"You taste amazing, sis."
Ruby blushed slightly.
Yang rose to her feet, stroking her cock slowly, smiling to herself as it reached its full 7.2 inches of length.
"Now its your turn on you knees."
She said, watching as Ruby timidly assumed a kneeling position infant of her sister, the redhead pushing some hair out of her face.
Leaning in close, Ruby marveled at her big sister's dick, not just her length, but the girth as well.
Slowly, Ruby reached out one hand, wrapping it around the base of Yang's cock, stroking the warm shaft slowly. It wasn't easy, the girth of Yang's member preventing the redhead from getting her hand all the way around it, but Ruby eventually found a slow, steady pace.
Yang sighed, leaning her head back slightly.
"That's real good Rubes~ take your time..."
"So thick..."
Ruby murmured, leaning in to gently lick the head of Yang's member.
"Damn right it is."
Yang cupped Ruby's chin gently as, slowly but surely, the redhead took the tip of Yang's member into her mouth.
Yang felt her muscles relax, the tension melting away as hers sister began to run her tongue over the head of Yang's member.
Feeling a gentle squeeze on her chin from Yang, Ruby began to bob her head back and forth on the girl's shaft, taking a little more length each time. Being her first time trying something like this with a real cock, she found the process to be fairly slow going, moaning slightly as she found her mouth quickly filled by her sister's dick. She'd practiced with a dildo several times in the past, but nothing ever this long or this thick. In fact, it was only then that Ruby realized then Yang's cock was actually larger than either of the dildos Yang had hidden under her bed.
"You've got a nice, tight throat, sis."
Yang joked, watching as 3.5 inches of cock disappeared into hers sister's warm mouth.
Ruby mumbled something unintelligible as she closed her eyes for a moment, forcing herself slightly farther down on her sister's thick shaft, feeling the tip reach the back of her throat. The redhead spluttered and coughed slightly as she managed to take the fifth inch inside, Yang's girth filling up her mouth completely now, her lipstick leaving a light red trail on the older girls shaft as Ruby moved her head back and forth,
Smirking at her sister's apparent lack of oral skill, Yang began to gently rock her hips back and forth in time with her sister's rhythm.
Ruby grunted softly, looking up into her sister's eyes with surprise as she felt Yang's cock stretching her throat with each consistent motion.
"Well you couldn't handle it on you own~"
Yang said, resting a hand on Ruby's cheek, smiling as she felt it swell to accommodate her size as she rushed forward, now 6 inches deep in her sister's warm throat.
Feeling Yang place one hand on the back of her head, Ruby took the innate and sped up her motions slightly, taking more and more cock into her mouth each and every time.
"There you go sis~"
Yang said, a pleasured smile coming over her face,
"Take your sister's nice, meaty, dick~"
And take it she did. Ruby Yang's sizable balls slap against her chin each time as Yang thrust forward, Ruby taking her to the base over and over again.
The redhead couched and choke, trying to relax her throat enough to keep up with her big sister. She didn't need a clock to know the blonde had already outlasted her by quite a bit.
Reaching up with her free hand, Yang cupped one oof her large breasts as best she could, groaning softly as she pinched her nipple, feeling the jolts of pleasure rocket through her body each time.
Somewhere deep inside her, Yang felt the familiar sensation rising, the pleasure building as Ruby began to run her tongue over her sister's shaft as she moved. And no matter how much she tried to hold it back, the blonde knew the feeling would soon overtake her.
"Oh... oh fuck!"
Yang gasped, gripping Ruby's hair tightly in one hand, her thrusts becoming more brutal,
"Oh fuck sis! Ruby, I'm cumming!!!!"
And with a groan of pleasure and passion, Yang hilted herself balls deep in her sister's throat as the pleasure overtook her.
Ruby closed her eyes, swallowing load ofter load f her sister's sticky, hot, release dutifully, savoring the taste each time.
Yang pulled out, sending the final load of cum splashing across the redhead's face.
When it was over and both sister's managed to catch their breath, they stared at each other for a moment.
"That was... incredible."
Ruby managed, smiling as she leaned back against the well o0f the dorm.
"I could say the the same for you."
Yang said, joining her sister on the carpeted floor.
"Certainly not bad for your first time taking a real dick."
"How could you tell?"
Ruby asked, running a hand up her sister's bear left leg.
"Trust me,"
Yang said, smiling contentedly.
"I always know when it's someone's first time."
Smiling, Ruby leaned her head on Yang's bare chest, enjoying the softness of her sister's breasts, staring at the cum stains on the floor.
"Now I know why you're so popular."
She said, absentmindedly running a hand over the blonde's flaccid cock.
"Thats just one of the reasons."
Yang joked, kissing the top of her sister's head.
The Ruby's great surprise, she felt her sister's cock hardening in her hand as she stroked the warm skin.
Holy shit. She's ready to go again already?
Ruby thought, watching as her sister's dick returned to its full 7.2 inch length.
Even after all that cum?
"Eager to go again?"
Yang asked as Ruby pulled back her hand.
"No, I wasn't-"
Ruby began, but Yang cut her off.
"Well you're gonna have to help me deal with this."
The blonde said, gesturing to her once-again-hard member.
"And that cute pussy of yours is looking mighty tight"
"Y-Yang!"
Ruby gasped as the blonde pressed two fingers to Ruby's damp folds.
"And already wet too"
Yang tittered, placing both hands on her sister's shoulders.
"I can't wait for this~"
And with that, she pushed Ruby down gently, pinning her sister to the carpeted dorm floor.
Ruby looked up into her sister's beautiful lilac eyes, feeling Yang's dick pressing against her entrance, her large breath pressed gently against Ruby's.
"Redy, sis?"
Yang asked, the head of her thick 7.2 inches prodding against Ruby's folds.
Slowly, Yang thrust downwards, pushing her way into her sister's tight, moist hole.
Ruby had a quick intake of breath as she felt her sister enter her. She wasn't a virgin anymore, but still, the girth of the blonde's member was something she wasn't used to.
"Fuck you're tight..."
Yang mumbled, gripping Ruby's shoulders for balance as she thrust downwards, ending up just over 3 inches deep in her sister.
"Too thick!"
Ruby moaned, her body quacking with pleasure as she felt her own dick hardening.
Yang thrust again, going 4 inches deep now, stretching Ruby's walls with each inch of powerful futa dick.
The blonde et her pace, thrusting down into her sister's ever-tightening pussy at a consistently ant rate, sweat dripping down her muscular body.
"Ah-haaahhh- Y-Yang!"
Ruby moaned, reaching up to clutch at her big sister's shoulders.
"I'm gonna... I'm gonna... nnnnghhh~"
Ruby's back arched as she came hard, her already tight pussy clenching down around Yang's dick, coating the blonde's cock with her juices as at the same time, cum shot upwards from the redhead's erect dick, coating her sister's abs.
"Like getting fucked by your big sis?"
Yang mumbled, slamming 6 inches of dick into the redhead.
"Y-yes..."
Ruby moaned, the afterglow of her own orgasm interrupted by the constant pleasure of Yang thrusting into her.
"Well hold on tight, I'm far from done!"
Yang sped up, sinking deeper and deeper with each thrust, her breasts pressed against Ruby's, both their bodies rocking with pleasure.
The blonde's thrust became rougher as she gritted her teeth. She had known Ruby would be tight, but not this tight. It took considerable effort to sink deeper and deeper in with each thrust.
Eventually the blonde managed it, her hefty balls slapping against Ruby's warm skin as she slammed herself in to the base each time.
Ruby came a second time, unable to take the pure pleasure emanating through her body, soaking Yang's cock and thighs with her warm juices as she felt Yang's thrusts speed up.
The blonde was panting heavily now. She wasn't used to reaching her tipping point this quickly but Ruby's pussy was so tight she soon found herself approaching orgasm.
"Rubes... I'm close!"
Yang groaned, sinking herself balls deep with each powerful thrust.
"Gonna cum..."
"Yang, wait!"
Ruby cried out.
Through her fog of pleasure, Yang realized what her sister meant.
With a roar like a dragon and one huge effort, the blonde managed to pull out right before her climax hit.
She came hard, coating Ruby's tits and face with load after load of hot, potent, seamen, some even landing in her mouth.
When the final load had landed on Ruby's chest, Yang collapsed next to her sister, sweat dripping down her body as the two lay there.
"Thanks... for the... warning, sis."
Yang said, staring up at the ceiling as she caught her breath.
"No problem."
Ruby managed, sighing happily as she felt Yang hold her hand gently.
After a moment, the two stood up, both very much in need of a shower

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