All characters in this story are at least 18 years old.
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Alex knelt near her sister's bed, her patience wearing thin. It was now 7:00 in the morning, and Kate was still snoozing away. Their parents were also very tired and their mother's soft snoring could be heard between the loud intervals of the chainsaw that was their father.
Alex slowly extended a finger and poked her sister in the arm, whispering, "Kate! Wake up!" Kate began to stir, but hadn't quite broken the heavy drape of sleep that still held her down. Alex stopped poking her sister in the arm, and instead began rubbing her finger on her sister's nipple. She traced the soft nub of flesh in a tight circle, growing in speed and intensity. The nipple quickly began to grow stiff and began pushing the thin fabric of the sheets above her.
Kate groggily broke the last layer of sleep and immediately felt someone rubbing her tit. She opened her eyes and saw that is was her horny sister, Alex. "What are you doing?" Kate asked slowly, still half asleep.
"Good morning, sis-" Alex began to say before Kate cut her off.
"Oh no it's not," she grumbled, turning over.
"What? I just thought-"
"More sleep," Kate said, like a cavewoman. She had already begun to drift back into slumber when Alex leaned over and licked her neck, sending shivers down her spine. She then pecked her on the cheek and whispered into her ear, her voice practically dripping with lust, "I just feel so bad about not helping you get off last night that I thought I'd help you this morning. I was so scared that we'd get caught that I didn't want to risk it."
Well, now Kate definitely wasn't getting back to sleep. She sighed and rolled onto her back again, allowing Alex to roam further down. She slowly and sensuously drew the sheet back, revealing Kate had gone to bed nude. "You know," Alex said, stopping half-way, "I hardly got any sleep last night." She then lunged forward and planted her mouth on her sister's huge tit, sucking the nipple into her mouth.
"Oh yeah?" asked Kate. She could feel Alex's inexperience show as she desperately tried to find a rhythm to her sucking. Kate found this trait about her endearing and so terribly cute. Just the night before, Alex had received the first sexual experience of her life, and now she was trying to pay her back.
"Yeah," Alex replied, releasing the nipple from her mouth, "I stood up almost all night thinking about what happened. After that fantastic orgasm wore off, I began to feel... well... ashamed."
"Ashamed?"
"Awfully, awfully ashamed," she took the other nipple into her mouth and let her tongue play with it a bit before letting go again. "I mean, what we did was incest, and that's a very bad thing to do." Her hands rubbed up and down Kate's chest, stopping on her almost D sized breasts for a moment before moving around a bit more. She began to place soft kisses in a pattern, circling the breasts, leading up the neck, then down between the cleavage to stop at her tummy. Her short hair lightly brushed her sister's bare skin along the way.
Kate had to fight not to let her ecstasy into her voice as she said, "So, what happened next?" knowing this wasn't the end of the story.
Alex climbed up on the bed and straddled her sister, whose lower half was still covered by sheets. "Well, then I began to think about how good it actually felt to finally..." she reached down and twisted both of Kate's nipples, hard, saying, "Fuck." Kate let loose a moan of pleasure. She reached over and grasped Alex's thighs.
"The more I thought about it, the more I realized how much I love you, my dear sister, and that's when I realized how very right this is." Alex slowly unbuttoned her silk top, but only pulled it aside far enough to reveal her cleavage.
"Well, just you wait and see what I've got in store for you later," Kate said, winking seductively up to her sister.
"I was actually hoping you had something in store for me now."
"Like what?"
"Well," Alex said, drawing it out as she leaned down, putting her face a couple inches above her sister's, "I was wonde- oh shit." Alex lost her balance and accidentally head-butted Kate in the forehead. "Ow," they yelped in unison and Alex slithered off of her sister in embarrassment. Once they were done rubbing their foreheads they looked at each other. All the sexual tension that had been built up to that moment was lost as they laughed together.
They snuggled up tight to each other for a moment before Kate put the heat back on with a low, lust inducing voice, "So, dear sister of mine, what did you want to ask?"
Alex glanced at her sideways, a sly smile playing across her face. She sat up, allowing the pajama shirt to fall to either side of her B cup breasts. "After thinking a while, I realized that I should find out, well, heh," she coughed to clear her throat. She was still getting used to being sensual, and that accident a moment ago wasn't helping her self-esteem. "You taught me how to pleasure a man, but now I want to know how to get a girl going." she blushed and averted her eyes.
Whatever momentum Alex had had going for her quickly ground to a stop as she began to return to her old self. Kate liked her timid sister much better than the one that had tried to be the sexiest being alive. Not that she didn't like her alter ego, but this Alex was much more attractive, like a lost puppy.
"Oh, sis, you don't know what this means to me," Kate said. She stretched out on the bed like a cat, and she would purr if she could. She sat up, yawned, and said, "Well, let's get started, shall we?" She pulled off the rest of the sheets and scooched over to the end of the bed, placing her feet on the floor. She curled her finger towards Alex in a beckoning fashion and instructed her to kneel on the floor in front of her.
Once Alex was in position Kate spread her legs, revealing her moist cunt to her anxious sister. Kate had a small amount of blonde pubic hair growing in a thin line above her pussy. Alex gulped. She had a general idea of where to go from here, due to her masturbation sessions, but it was different trying to map out a pussy that wasn't your own.