It had been a long, rough day for Robyn. The new client had been especially difficult, and despite her best efforts, she didn't think she was going to get his account.
It was 3:20PM on Thursday and Robyn decided that she'd done enough for the day. She phoned Diane, her assistant, and told her that she was going home. Davey and Sarah had gone out to find more toys and equipment for the den, so Robyn figured she'd have at least two or three hours to herself -- she needed to unwind.
Once at home, she kicked off her heels, grabbed a beer from the fridge and flopped out on the couch. She dozed off after two sips.
"Hard day at the office?" someone asked her 30 minutes later.
Robyn shot up with a start, almost spilling her beer.
Stacey, her younger sister, stood at the opposite end of the couch.
"Omigod!" Robyn gasped, rising to greet her. "What are you doing here? I didn't think you were coming until tomorrow."
The two women hugged and returned to the couch.
"Thought I'd come in today and oversee the party planning." Stacey informed her. "I got here this morning after you'd left for work. Davey and his new girl came and got me at the airport."
Stacey's attitude towards her sister had changed since their encounters on New Year's Eve. She regarded Robyn less as her older sister and more as her new toy. This was the first time the two of them had been alone since that wild night.
"So," Stacey began staring intensely at her sister. "Did you miss me, Robyn?"
Robyn blushed and could no longer look at her sister.
"Well?" Stacey insisted. "Did you?"
"You know I did." Robyn finally confessed, shyly looking down at her hands in her lap.
"Good." Stacey replied after a pause. Smiling, she gently brushed back Robyn's hair to expose her ear, leaned towards her and whispered harshly: "I missed you too, sister -- I missed taking you -- I missed using you!"
When they were younger, her sister had always been the more outgoing, sometimes more bossy, of the two -- always wanting things her way. But this was a lot different than arguing over toys or clothes; this was a side of Stacey that Robyn was still trying to become accustomed to.
Stacey's "dark side" intimidated and excited her -- Robyn trembled slightly.
"I think I'd like a beer, too." Stacey told her, settling against the cushions.
Promptly, Robyn rose went to the kitchen and returned with a beer poured in a tall Pilsner glass.
"I hope you don't mind that I put my things in your room?" Stacey announced more than asked. "I think I'd like to sleep with you tonight. Maybe I'll join this 'Sarah-girl' another night, once I get to know her better."
"That's just fine." Robyn nodded, hoping her sister would notice how pleased she was with the idea.
"Come with me." Stacey abruptly ordered, rising and heading for the stairs.
Robyn followed her sister up the stairs and to her bedroom.
"Strip. Leave nothing on." Stacey said.
Again, Robyn did exactly as she was told. Within minutes she had removed every piece of clothing or jewelry she was wearing.
Standing at the window sipping her beer, Stacey hadn't even turned to notice her sister standing there naked and waiting for her next order. Robyn stood there silently, watching her sister and waiting; her nipples and pussy began to tingle.
Once she had drained her glass and placed it on the bureau, Stacey finally turned to look at Robyn. She smiled and pointed to the bed. Robyn walked over and sat.
"Now undress me." Stacey ordered standing only inches in front of her.
Robyn proceeded to slowly and carefully remove her sister's clothing; starting with her blouse and finally ending with her red-lace thong.
Shoving her back onto the mattress, Stacey climbed on top of her sister; she roughly pulled her hair as she forced her legs between Robyn's thighs and began grinding her pussy against hers. Robyn could only moan as her sister sucked and nibbled at her bottom-lip.
"That's right, sis!" Stacey growled at her. "All mine! All mine! Anytime and anyway I want you, you're all mine!"
Stacey forced her tongue into her sister's mouth; they shared a hard, wet, passionate kiss for several minutes. Both women could feel the wetness and the orgasms building between their thighs.
Turning into a 69-position, Stacey smothered her sister with her pussy.
"Eat me, bitch!" she snarled. Robyn put as much of her tongue as she could manage into her sister's hungry pussy, sucking and lapping at her clit.
"Oh yeah, that's it." Stacey moaned. "Eat my pussy just like that. Stick your tongue up in there. Stick it in my ass too!"
Robyn complied -- running her tongue across her sister's tight asshole.
"Yes!" Stacey snarled through clenched teeth. "You like licking my shit-hole, don't you? You nasty, fucking whore! Lick my tight asshole!"
Stacey spread the lips of Robyn's pussy with one hand and began pinching her clit with the other. Robyn twitched and moaned, with her mouth full of Stacey's crotch.
"Stick your fingers in my pussy!" Stacey ordered. Robyn pushed her middle and index fingers into her sister's snatch and slowly pumped them in and out.
"My ass, too!" Stacey gasped.