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How Sisterly	By : exfaffy0000 Category: +. to F > Fate/stay Night Views: 38652 -:- Recommendations : 1 -:- Currently Reading : 4
Disclaimer: I don't own Fate/Stay night or the characters within. I make no money from the following piece of fiction.

Chapter List
- 1-How Sisterly
- 2-How Sisterly 2
- 1
- 2
How Sisterly

Gripping her shaft with her slender fingers, Rin traced her rock hard penis over Sakura's shapely pink lips. The luxurious feel of them against her sensitive cockhead made her insides clench with anticipation.
"Please Nee-san," Sakura whispered breathlessly. "Please don't tease me."
"Who's teasing who?" Rin asked, sliding the bulbous head against her sister's soft cheek. The spongy mass was swollen with arousal. She tried to maintain a frown as Sakura turned and pecked the side of her dickhead cheekily. It looked so sexy and felt so good that Rin let out a slight grunt. Her dick flexed upwards and flicked against the bangs of Sakura's purple hair.
Sakura smiled up at her older sister saucily. "Do you like that?" She kissed it again, the same spot, longer this time, almost sucking at the sensitive skin. The feeling of her full lips was divine.
"Sakura..." Rin warned.
"Hm? Do you like my lips on you?"
Rin grinned, feral, for a second, and a mix of fear and lust spread across Sakura's face.
Her heartbeat sped up as she waited for Rin to explode, become angry enough to ravage her.
"Yes." Rin said. She stroked Sakura's cheek with the back of her fingers. "Now hurry up and suck me so I can screw the grail out of you."
Sakura giggled. "As you command, Nee-san...." Leaning in, she began at the base, kissing once. An inch higher, she kissed the shaft again, the languid smack loud in Rin's lust-dulled ears. Inch by inch she kissed the length of Rin's long, thick cock, until she reached the head. She stretched her mouth open cutely. "Mwaaaaah..." she went, sticking out her wet tongue, before slobbering over the shaft, all reserve gone.
Rin groaned cutely, one hand on Sakura's head as she pleasured her with her hot, talented mouth.
"Mmmmm...do you have a lot of cum today, Nee-san...?" Sakura asked, resting the wet weight of Rin's length on her face and against her nose as she kissed the base of the shaft.
Rin smiled hotly as she felt the bangs of Sakura's soft hair brush against her crown. "What do you think, Sakura?"
"I'm thinking yes." She kissed the base. "I'm thinking you'll cum as much as you always do - a pint. I'm thinking you should reward me." She kissed her way up to the top, extracting a groan from her sister. "After all, do I not please you, Nee-san? Am I not the greatest cocksucker to grace your stiff cum-giving prick?" Sakura asked, glancing up at her sister shyly from lowered eyelashes. She pumped the shaft with two hands, slow stokes, her expression cutely contrite.
"Yes." Rin murmured, stroking the top of her sister's head, trailing fingers through long silky-straight purple hair. Sakura was the very definition of sexpot. Her delicate face, flushed with lust. She had eyes that could look both innocent and lustful, a whole body with curves to enough to kill, huge breasts firm and soft that begged to be fucked. Hips made to be gripped, outrageously sexy legs.
Her younger sister was so beautiful...so sexy. 'And she'll do whatever I want....'
"You're the greatest, and the most beautiful..."
Sakura kissed the tip of Rin's cock lovingly. "Thank you," she said, sliding down, once again wrapping her lips around to smoke Rin's cock hard.
"...And the most slutty." Rin gasped.
Sakura loosened her lips around Rin's shaft. "Thaaank uuu...." she purred around a mouthful of dick.
Rin gazed down the length of her sister's body, to her oh-so-delectable rear as her sister used her eager and well-practiced tongue and mouth.
Rin...always had an 'unhealthy' obsession with her sister. Perhaps it was because she had to pretend she didn't love her, or remember her. But after their relationship was repaired, there was no need for that.
When they started living together, she just...began noticing Sakura a lot more. How pretty Sakura was. How soft and large her breasts were. She began to think like - 'Any man doing her would probably be very happy.'
Despite her resistance, she began thinking of how sexy her sister was. What she might look like being fucked.
When she first began masturbating to her fantasies, she realized there really was no avoiding it.
She began sneaking around, listening in Sakura when Shirou fucked her.
She definitely wasn't jealous now. How could she be, when Sakura was hers to do whatever she wanted with?
"Nee-san." Sakura said, pausing in her ministrations, but not missing a stroke with her hands. "You're thinking awfully hard about something. Perhaps about the first time you seduced me?"
"...Ngh...that's...not...."
"You are!" Sakura admonished softly. "I can tell..." She said, before sinking down again.
Sakura had gotten very acquainted with Rin's cock since then. She liked to think it was because they were sisters - that there was a special bond between them. Rin would blush and claim that she was just guessing - that she was way too into sucking cock.
Could be, she reasoned. Still, with simple things, Rin had to admit her prowess. Right now, she could tell Rin was trying hard not to ejaculate. She felt it in every familiar twitch and jerk.
She loved sucking cock - she loved sex, but this particular act was her favourite. She was a suckslut, it was true. She had long ago embraced that. The proof was in her cunt, wet from all the cocksucking she had been doing.
'Cum. I could cum...mmmm...cum....'
She raised her head, taking the crown of Rin's cock into her mouth as she jerked off the shaft, relishing the texture with her tongue. "If you're trying to last, that's a terrible story to remember...it even gets me wet just mentioning it...first you made me kiss you...like this...." She pecked the cockhead sweetly in a lewd copy of a chaste kiss.
She felt Rin's shaft jerk, felt Rin try to reign in her desire.
'I want her to cum.'
"Then you made me kiss you like this..." She opened her mouth wide, began to mimic a french kiss, using her tongue against the slit, and around the crown. "Hmmmmghh," she hummed passionately.
Above her, Rin groaned, her cock spasming, swelling, becoming harder.
'I love it when you moan, Nee-san. It means I'm doing a good job....'
Pleased, Sakura sank her pink, full lips down again, then up, sucking hard and using her tongue on the shaft, bobbing her head and creating a hot wet vacuum with her mouth, listening to Rin voice the approval she could feel in the dick she was sucking.
"Mmm...mmm..mph!" Sakura pulled off Rin's cock with a hard pop, sucking hard as she did. "Ne, I'm good, right Nee-san? I'm a good little sister, and I suck your dick well, right Nee-san?"
"Yes..." Rin gasped, her hand clenching unconsciously in Sakura's hair. "Yes..."
Sakura smiled. "Then reward me Nee-san. Reward your cute little sister...." she begged, masturbating her older sister's shaft furiously, before cramming as much as she could into her mouth, swallowing Rin's hard dick into her throat. Her nose buried into Rin's groin, she ran her splayed fingers up Rin's flat, smooth stomach. "UNNnnhhh...."
Rin gave up. She thrust her hands into Sakura's silky mass of hair, holding her fast. Sakura let out a cute little whine of happy surprise as she was forced into Rin's groin, her nose squashing. If she could have smirked, she would have.
"Ohhh...I'm...I'm almost there...Sakura...!" she panted, letting go a little. "Keep...keep going...and I'll reward you...I'll...ahhhh...ah...ah!"
Before she could even finish her promise, Sakura set to it. Fingers wrapped around her sister's thick shaft, she sucked hard, deep-throated often, and bobbed with lascivious, focused abandon, eager for the pint-sized load of cum she could feel was so close.
'I want to...taste it...!' she thought, breathing short puffs of air through her nose. 'I want to...taste it...!' "Mmm...mmmm...!"
"...Oh god Sakura - you hungry, hungry slut! Rin gasped. "Drink it! Don't spill a single drop...! And...don't...drown...!" Gripping Sakura's mass of purple hair in her hands hard, she once again pressed her sisters nose and lips against her groin.
'N...no...! I want...to...taste it...!' she managed, before cumming herself, all thought erased, eyes rolling upwards in sheer pleasure as jet after jet of cum was pumped down her throat. The spasms of Rin's penis in her mouth as it ejaculated was ecstasy, each hard pump triggered an orgasm for her. She was...going to die. She was going to die with her sister's meat in her mouth. She vainly tried to push Rin away, before succumbing to her own orgasms, going limp, her head held up by her hair.
Rin groaned, heedless. "...Uhhhhh...I love you...Sakura...! You unbelievable whoresister of mine...! You suckslut who gets off on facefucking and cocksuckinggggg!" She gasped and moaned shamelessly, eyes closed, as Sakura's throat and mouth did their best to drain her dry.
Finally, her orgasm receded. Rin pulled out of her sister's throat, noting the slack posture, having not noticed because her tongue was still working, her mouth still sucking. Weak spasms still ejected smaller loads, and, upon seeing Sakura smile drunkenly around her shaft, eyes closing in orgasmic bliss, rear undulating to her own orgasms, she finally ejaculated the last bit of cum she had left in a single, moaning load.
She let go of Sakura, who finally fell back onto the futon, Rin following her.
They lay there, panting. Rin pulled up to her, eyes half-lidded, both of their chests rising and falling with feminine exertion. She kissed Sakura on the cheek, tasting salty sweat, Sakura's saliva, and her own cum. Then she pulled herself up further, planting a kiss on Sakura's full, open mouth, the same mouth that had sucked her dry.
Sakura responded meekly to the gentle thanks.
"Tomorrow...again." Rin said, nuzzling her sisters neck. "Wake me..."
Sakura smiled, turning to her. "...Of course...Nee-san...." They kissed again, and Sakura took her sister's hand and pressed it to her cunt. "...Although...you haven't...um...."
Rin sighed. "You're insatiable...."
They smiled shyly at each other, before kissing again, to re-ignite their passion.
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How Sisterly