Because Big Sister Says So!

[PrincepsCyberius]

"Jesus!" Casey cried out in orgasm as Gus watch his girlfriend Marie conclude giving her oral sex. "Oh...."

Marie continued licking Casey's clitoris while she slowly withdrew her still wriggling fingers from her vagina. Casey's knees gave way and, with her back still against the door, she began to slide down. Marie sat back when Casey finally sat on the floor.

With his hand already caressing the extended left calf and foot of the girls' older sister Cathy, Gus slid further up the bed to snuggle her, and whisper in her ear. "Is this what you hoped for, Mistress?"

 

[EmpressJosephine]

New Ideas



Marie watched with far more sexual intrigue than romantic jealousy as her boyfriend Gus slid up from the foot of her parents’ bed to snuggle her older sister Cathy. Marie had fantasized about threesomes before, albeit involving herself and two men. Now, with what she learned of lesbian sex from her sisters today, the idea of sharing herself with a man and woman simultaneously excited her even more.

Leaving her younger sister Casey where she lay exhausted in post-orgasmic bliss against the bedroom door, Marie began to crawl on hands and knees toward the bed. Gazing up into Cathy’s eyes, she asked huskily: “May I join you, Mistress?”

 

[KaseE]

Hearing Marie call their older sister Cathy "Mistress" brought Casey back from her post-orgasmic stupor. Good, she thought, Marie has accepted Cathy's proper place in our lives. She had worried Marie, proud, independent, and smart, would buck against Cathy's assertion of authority over her. Of course, having similar qualities herself, Casey understood the restful lure of occasionally surrendering your will to another for a while.

That's what Casey still wanted, despite the original terms of their extorted sexual enslavement of Marie and her boyfriend Gus. She did not want to dominate Marie, but to simply share love and lovemaking with her. In Gus's case, she instinctively felt submissive to him, and wanted to formalize that status.

That could wait. At the moment, she could hardly hold up her head. She would discuss her desired change in status when Cathy latter. For now, she would content herself with watching unfold whatever would happen next on her parents' bed.

 

[CCorteeze]

"Is this what you hoped for, Mistress?" Gus, who snuggled Cathy from behind, whispered in her ear.

Before she could answer, Marie began to crawl on hands and knees toward the bed. Gazing up into Cathy’s eyes, she asked huskily. "May I join you, Mistress?"

"Yes," Cathy grinned hungrily. "You may join me, and only me. You know why. Tell Gus what you are."

 

[EmpressJosephine]

Self-Identification



“You may join me, and only me,” Cathy informed her younger sister Marie from their parents’ bed, where Cathy snuggled with Marie’s boyfriend Gus. “You know why. Tell Gus what you are.”

“I am your sex slave,” Marie answered immediately from where she crawled on the floor. Then, almost as instantly, it occurred to her what her big sister really expected her to say. “Oh, and I’m... I’m a lesbian slut.”

Marie did not understand why, but saying this in front of Gus made her loins burn with desire.

 

[KaseE]

“Tell Gus what you are,” Cathy demanded of her younger sister Marie from their parents’ bed, where Cathy snuggled with Marie’s boyfriend Gus.

“I am your sex slave,” Marie answered immediately. “Oh, and I’m... I’m a lesbian slut.”

Casey, the youngest of the three sisters, smiled from where she reclined against the bedroom door, exhausted from her recent succession of intense orgasms. It relieved and pleased her that Marie so willingly admitted her new status and situation to their mistress. Casey hoped it would make it easier to convince Cathy to let Casey change her own status as Gus's mistress to Gus's slave.

 

[PrincepsCyberius]

“I am your sex slave,” Marie answers Cathy's demand. “Oh, and I’m... I’m a lesbian slut.”

Gus has to suppress a moan as his erection begins to ache. He wonders why his girlfriend's declaration does not bother him, as logic dictates it should. Instead, it extremely turns him on.

 

[CCorteeze]

"I'm a lesbian slut," Marie finally gave the answer her sister Cathy sought.

"Prove it!" Cathy laughed from where she lay on their parents' bed next to Marie's boyfriend, Gus. "Prove it by crawling up here and making me come, ignoring Gus the whole time."

Cathy turned to Gus and cautioned, "And you don't get to touch her at all."

 

[EmpressJosephine]

On Display



“Prove it!” Cathy demanded after her younger sister Marie declared herself Cathy’s lesbian sex slave. “Prove it by crawling up here and making me come, ignoring Gus the whole time.”

As she climbed the foot of her parents’ bed, where Cathy lay next to Marie’s boyfriend Gus, she heard Cathy caution him. “And you don’t get to touch her at all.”

Marie started by sofly kissing Cathy’s right foot, then slowly working her way up Cathy’s smooth calf with gently licks, kisses, and nips. She glanced up at times, to try to catch how Gus reacted to her willing Sapphic subservience to her sister.

 

[PrincepsCyberius]

"You don't get to touch her at all," Cathy informs Gus as his girlfriend Marie crawls up the foot of the big bed to start softly kissing Cathy’s right foot, then slowly working her way up Cathy’s smooth calf with her tongue and lips.

"That's fine," Gus replies as his left hand moves to Cathy's breasts and he leans over, his lips slightly parted, to offer her a kiss.

 

[KaseE]

Having recovered from her recent succession of intense orgasms, and not wanting to miss out on the fun, Karen started to crawl over to the bed holding her older sisters Cathy and Marie, and Marie's boyfriend Gus.

 

[CCorteeze]

With her sister Marie licking her way up Cathy's leg with a goal of cunnilingus while Marie's boyfriend Gus kissed Cathy and fondled her breasts, Cathy now knew for certain that her gamble had paid off. She had fantasized for years about having a stable of sex slaves. She had seduced her sister Karen into that position months ago, and today blackmailed Marie and Gus into joining them with increasing enthusiasm. Laying here in her parents' bed, Cathy relaxed and set about simply enjoying the combined erotic sensations her new lovers currently provided.

 

[KaseE]

Like Marie before her, Casey crawls up the foot of the bed. She, however, slips right between Gus's legs and takes his erect organ into her mouth, swirling her tongue in greeting.

 

[EmpressJosephine]

Double the Pleasure, Double the Fun



Marie feels the movement on the bed to her right and looks over to see her younger sister Casey slide in between Marie’s boyfriend Gus’s legs and take his erect manhood into her mouth. Marie then glances up to see Gus kissing their older sister Cathy while fondling her breasts. Marie finishes kissing her way up Cathy’s legs and starts to kiss and lick her sodden womanhood.

 

[PrincepsCyberius]

Gus purred into Cathy's mouth and squeezed her right breast as her younger sister Casey took his erection into her mouth and started swirling her tongue around it. He liked how Cathy's firm, round breast felt in his hand. He had already noticed how each sister's bosoms differed. Marie, his actual girlfriend, currently performing cunnilingus on Cathy, had smaller but very pert conical breasts. Cathy's were much rounder and at least as large as a grapefruit, but just as firm and with the same one inch diameter pink areolae and pencil eraser nipples. Casey's boobs split the difference, larger than Marie's but shaped more like hers. Also, Casey had larger and redder areolae. Gus lightly pinched Cathy's nipple then chuckled deeply around their kiss as the word "smorgasbord" crossed his mind.





(I'd like to thank my writing partners for tolerantly cooperating with my directness in developing descriptions for their characters breasts.)

 

[KaseE]

(I'd like to thank my writing partners for tolerantly cooperating with my directness in developing descriptions for their characters breasts.)

(You're very welcome!)



With her lips wrapped around his hard erection, Casey felt Gus's chuckle as much as she heard it. She assumed he shared some private joke with her big sister Cathy, with whom Gus necked while his girlfriend, their middle sister Marie, gave Cathy cunnilingus. With a twinge of jealousy for his full attention, Casey went to work with her tongue on his stiff organ. She swirled it around its shaft and fluttered it across its head, bringing up her right hand to start stroking its length and caressing his balls.

 

[CCorteeze]

Cathy couldn't imagine anything better than this, having her younger sister Marie giving her oral sex while she herself kissed and cuddled Marie's boyfriend Gus. She moaned into Gus's mouth as Marie licked her clitoris just as Gus lightly pinched her nipple. A moment later, Gus chuckled, his deep laugh rumbling within their kiss.

Cathy pulled back her head and smiled quizzically at him. "Something's funny?"

 

[EmpressJosephine]

Comic Relief



Marie thought she heard her boyfriend Gus chuckle. Her older sister Cathy, who necked with Gus while Marie gave her cunnilingus, confirmed this by asking him: “Something's funny?”

Leaving her tongue tip moving softly upon Cathy’s clitoris, Marie looked up to better understand what he found so amusing.

 

[PrincepsCyberius]

Gus chuckled, his deep laugh rumbling within the kiss he shared with Cathy.

She pulled back her head and smiled quizzically at him. "Something's funny?"

He did not want to admit his amusement came from thinking of her and her two sisters' nicely varied pairs of breasts as "smorgasbord." Instead, he said: "I'm just so happy. You and Casey have brought so much more love into Marie and my lives!"

 

[CCorteeze]

"I'm just so happy," Gus explained. "You and Casey have brought so much more love into Marie and my lives!"

Some instinct told Cathy Gus had not spoken the whole truth in this answer, but she decided not to press the issue. Marie's tongue on her clitoris had her in a good mood. She simply smiled and resumed kissing Gus.

 

[KaseE]

"I'm just so happy," Gus explained. "You and Casey have brought so much more love into Marie and my lives!"

Already giving Gus fellatio, Casey sucked slightly more while swirling her tongue around the head of his erection.

 

[EmpressJosephine]

Love All Around



“I’m just so happy,” Marie’s boyfriend Gus explained his spontaneous chuckle while kissing Marie’s older sister Cathy, while their younger sister Casey gave him fellatio. “You and Casey have brought so much more love into Marie and my lives!”

Marie lifted her mouth from Cathy’s womanhood to reply. “That’s right. And we hope we’re giving at least as much back.”

As she resumed licking Cathy’s clitoris, Marie reached over and set her right hand on Casey’s back and started stroking it lovingly.

 

[KaseE]

Casey purred as Marie caressed her back, the vibrations of her vocalizations transmitted immediately to Gus's erection in her mouth. Her tongue increased the pace of its dance upon its engorged head as she used her right hand to stroke its shaft.

 

[CCorteeze]

"My God, you learn fast!" Cathy moaned about her younger sister Marie's cunnilingus, breaking her kiss with Marie's boyfriend Gus to focus on the burgeoning ecstasy Marie's tongue incited in her loins, which just then spontaneously climaxed.

"God yes!!!" Cathy screamed. "I'm coming...."

 

[EmpressJosephine]

In for the Kill



“My God, you learn fast!” Cathy moaned about her younger sister Marie’s cunnilingus, inspiring Marie to flick her tongue as fast as she could on Cathy’s clitoris, making her scream. “God yes... I'm coming!!!”

Marie wrapped her left arm around Cathy’s waist to try to hold her bucking hips in place while she continued lapping at her clit.