The cold air on his slick and still very hard cock startled him as he pulled back and slipped out of her incredibly hot and wet pussy that still contracted in rhythmic spasms from the orgasm she had just experienced.
Her high-pitched moans together with the clenching of her vaginal muscles around his feverishly moving prick had pushed him over the edge just moments earlier, when his cock had squirted a large load of his hot sticky cum deep inside her vaginal canal, meeting her shuddering orgasm with his own.
As his cock slipped out, a large blob of the white goo he had just produced slowly dripped from her still gaping hole across the puckered round of her ass onto the bedsheet, mixing with the pool of juices that had accumulated there earlier.
They didn't fully understand all that had happened, yet. Less than three hours ago they would have considered each other almost strangers, and now, as he collapsed on top of her, spent and satisfied as never before in his life, he felt closer to her than he had ever been to any other human being. Going by her greedily seeking his mouth for yet another hungry kiss, their tongues continuing the intense fucking they had shared just moments ago, she clearly felt the same.
In the space of an evening, the siblings' relationship and their lives had changed forever.
--
"Jack, Sally! Dinner's ready in five! Wash up and come down, kids!"
This had been their evening routine for as long as Jack and Sally could remember. Dinner at six, TV until eight, in bed and ready for school the next day before ten. Hands above the sheets. Always.
Jack went to wash his hands and, just as he did every evening, gave his sister's door a quick knock. "Come on, Sal! Dinner's ready!" As bad as it was to have to go through this routine, he didn't like dinner to be late.
Sally lay on her bed, listening to music. Why did her brother have to be such a jerk all the time? Sally didn't get it. Why couldn't he just leave her alone? She had heard her mother calling. She'd be ready in time. He wasn't her babysitter any more.
The year and a half the siblings were apart was not a big age gap, but somehow, they had never been comfortable with each other. When they were kids, he liked to keep to himself and read. He liked books. He read anything he could get his hands on. She loved animals and the outdoors, horses and riding to be precise. Not that the family would have been able to afford a horse or even riding lessons. Nonetheless, Sally spent every available minute down at the stables, looking after the horses.
Being the older brother, Jack was often left to mind his sister when his parents had gone out. Not knowing what to do with his little sister, he had usually spent this time alone in his room, his sister in hers. By the time their parents separated, the siblings hardly spoke to each other at all any more.
As they grew older, their interests changed. For him, reading turned into a passion for computers. Her infatuation with horses turned into an intense love of popular music and dancing.
Now, at nearly 20, Jack was finishing up his Freshman year as a computer major at State. Sally, who had just turned 18, spent much of her Senior year singing and dancing. She had managed to get the leading role in this year's high school musical.
--
Dinner had been uneventful. Dinner was always uneventful. When they had been younger, the siblings had enjoyed "family time" and they had endured it growing up. But over the years, and now that both had become young adults, this daily routine had become almost unbearable. Now, the obligatory: "Honey, how was your day?" was usually met with a very short answer from both of them, provided only not to disappoint their mother. If there was one thing Jack and Sally would have agreed on, it was that this whole "Dinner as a family" thing their mother insisted on was a complete and utter waste of time. Ever since their Dad had left they hadn't been a real family, anyways.
There had been nothing on TV that night that would have interested all three of them, so after dinner Jack had gone to his room to slay a few monsters on the PC, headphones on, so he wouldn't disturb the others. Sally had gone to her room to "practice" a particularly difficult piece from the musical. "Practice", of course, was a drastic overstatement. Sally never sang at home. But listening to the piece she hadn't mastered, yet, over and over again, headphones on, volume cranked up to the max, did her just fine. She'd get it eventually.
"Can you come here for a second, Jack?" Jack hadn't believed his ears when he had noticed his sister's faint cry over the loud battle noises of his computer game. Sally had never called on him for help before, at least not that he could remember. He had slowly removed the headphones, though, just in case.
"Jack, come here quick! I need your help!"
The urgency and the element of alarm in her voice had startled him.
"I'm coming!" He got up from his PC and slowly made his way over to her room. "What's up, Sal", was what he wanted to say. "What the fuck!" was what burst out of him instead. He couldn't believe his eyes.
