Are we there Yet.!

When Katherine arrived home, about ten minutes later than expected, she was surprised that Alan wasn't already there and waiting for her.

He came biking home at a blistering speed about five minutes later.

Katherine actually stood in the garage where he parked his bike. She looked peeved and had her arms crossed. "And what took you so long?"

"Sorry! Believe me, I've never been so keen to get home. But Christine found me and started talking to me-"

She interrupted with a loud "RRRRRRR!"

He quipped, "What is that, your mountain lion impression? If so, it's pretty good. But honestly, I had no choice but to talk to her. You know how curious she gets. She knows I don't have anything so urgent going on that I couldn't stop and chat with her for a few minutes."

"Grrrr!" But Katherine decided to try to bury her jealousy, since the less they talked, the quicker they could get to Kim's house. She also remembered that she'd been late getting home herself. She said petulantly, "Whatever!" Then she spun around and hurried into the house.

Alan followed her in, and they met up with Susan in the kitchen.

Alan and Katherine had paved the way the night before for their upcoming fuck session, as well as future ones. They had told Susan that a new group had formed, called the 'S-Club' or 'Service Club'. They said it was a group devoted to doing good deeds in the community, kind of like the Key Club, another group that was already popular at their school. There actually were similarly-purposed S-Clubs in other schools, which was where Alan had gotten the idea, but their high school didn't have one. That made it a great cover story.

The two further explained to Susan that tomorrow was the first meeting, and since the club had just started, it would meet every Monday and Thursday. The membership was very small, because meetings were being held off-campus. Therefore they needed to borrow the car. That was a necessary lie, because Kim's house was quite a distance away.

Susan was delighted and readily agreed to loan them the car any time they needed it for S-Club activities. She encouraged them to join more such clubs, especially since it would look good on their college applications.

Susan even offered to drive them there, but Alan said that would make them look uncool to the other club members, who all had their own cars. (Surprisingly for such a rich family, the kids didn't yet have their own cars because their parents felt it would be spoiling them too much. Anyway, if Alan really were to need a car for some special event, his father's car was usually available since Ron was almost never around.)

Thus Alan and Katherine managed to arrange to have sex with each other with their mother's full approval, in a certain sense. The ever-resourceful Alan had also managed to procure a box of condoms.

Kim phoned and gave the all-clear, so everything was ready.

— — —

Alan drove. As they got in the car, he said, "Sis, I'm so glad we're doing this. Sitting in class, I'd half convinced myself that you were gonna chicken out."

"Are you kidding, Big Tasty Brother? I wouldn't miss this for the world! You're going to make me a woman!"

As they settled into the car in the driveway, Katherine leaned over and kissed him on the mouth.

He let the kiss linger, but when it was done he looked around frantically and said, "You're trying to kill me, you know that? We're still in our own frigging driveway! Mom could see! Just wait a few minutes, please!" He started the car.

"Sorry, Bro. Or should I say, Big, Hard, Sister-fucking Brother."

"Hey wait a sec." He put his head down on the steering wheel and groaned inwardly. "Sis, when you say things like that I feel so torn. Is what we're thinking of doing here really right? Is it... is it wrong? Even if you say no, isn't it going to end badly? Don't you feel a bad end coming?"

She held his head in her hands and turned it so he was looking at her. "Listen to me, Big Brother. This isn't wrong. I love you. You love me. That's all that matters. Forget about the mores of this town; I don't care what they think. I'm not certain what the law is on this, but it feels right. You know it and I know it. We love each other and always have, and this isn't going to end badly because we will ALWAYS be in love, no matter what happens."

He asked, "But what if Mom finds out? It would break her heart. Or Ron?"

"Sure, Mom catching us would not be good, to say the least. But ultimately, she'll love us even if we rob a bank. Besides, given how she's helped you 'do your thing' already, can she really be the one to throw the first stone?"

"But that's not the same as real sex," Alan protested. "Not even close."

"No, but it'll help, big time. As for Dad, he's never, ever around, so forget about him. In fact, let's just forget everything and everyone else and have fun! I know I'm going to have a hell of a good time, and love every single, unforgettable second."

That made him smile. He kissed her deeply, though quickly. He was glad that he had, for he again tasted a pleasing hint of mint on her lips and could smell the musky aroma of her skin. "I don't doubt you will. And you're probably right about everything. It just feels so momentous, it takes my breath away. But I'm so excited too. I'm all trembly. Let's get going before I die of anticipation." He started the car.

"Tell me about it!" she enthused. "I just get so uncontrollably excited thinking about the fact that we're going to be making love in mere minutes! I'm so turned on! Not only that, but the most interesting thing happened to me at school today."

"Really? What?" Alan asked as he drove the car out onto the street. He thought whatever she would have to say could take his mind off his lingering doubts.

While he drove down the road, Katherine talked dirty and told him the hot and sexy story of what had happened with Heather, Amy, and herself during cheerleader practice.

Since Susan might see them leave or return, they had to wear relatively normal clothing. Alan wore a T-shirt and long pants while Katherine wore shorts and a sweater. But once she left home she took the sweater off to reveal a sexy green tube-top.

As they sped through traffic, Alan could look over and see Katherine's magnificent boobs jiggle and shake. He blessed the car's stiff suspension. He grudgingly admitted to himself that her boobs weren't nearly as big as the almost unnaturally massive tits of his mother or Suzanne, or Christine's twin wonders, but they would still be the subject of masturbatory fantasies for just about any guy at school.

He thought, Between Sis and Aims, I've got the inside track on at least half of the most jaw-droppingly beautiful and big-breasted girls in the school. And then there are certain other older women at home that I love to death and who defy description. It's definitely a one in a million or even one in a billion situation. Wow. And it was pretty much all caused by this weird medical treatment I've been given. Thank you, Dr. Fredrickson!

But despite all the women in his life, at that moment it was his sister who occupied his mind.

Within a few blocks of leaving the house, Katherine crouched down in front of the passenger seat so her brother could better see the show she was going to put on. She grasped at her breasts through her top, and pulled down her short shorts past her knees so she could frig herself.

Alan was freaked out that she now wore nothing but a tube top, but as she was crouched down, no one could really see what she did or didn't wear. He had to make a deliberate and constant effort not to try and see her pussy for fear of crashing the car.

As she continued to tell her arousing story, she reached over and placed her hands on the bulge in his pants. She began to massage it through his clothing as if that was the natural thing to do.

Alan prayed that they would get to Kim's house soon, before he had an accident. Between her story and her hands, the trepidation about incestuous sex disappeared completely from his mind. Lust took over.

She stopped telling her story and said, "You really need to get new pants, because these have a defective zipper. Look - they're unzipping all by themselves!" She giggled and pulled his zipper down as she said this.

He placed his hand over his opened fly to prevent her from going any further. "Sis, you can't! I'm driving, for fuck's sake. How would you like to get us killed right before our big moment?"

She was unfazed, and giggled, "Hey, don't blame me - it's the zipper." She knew he had to keep at least one hand on the wheel, so with one more hand than he had in the fight, she managed to get his hand out of the way and pull his erection out through his fly.

"No, Sis. No!" he cried in a very agitated state. "Please! I beg you!" The car stopped at a stop light, and he pulled at his hair with both hands in frustration and sexual arousal. "We're gonna die. I know it. Die!" He said this dramatically and fatalistically.

They started moving again, and as though to drive the point home, he nearly struck a mailbox on the side of the road; he missed it, he was sure, by mere inches.

"See?!" he griped.

But she didn't see, since she was crouched down so low.

When they stopped at another stoplight he stared at his sister wide-eyed with fear, even as she steadied herself from the slight jolt. Luckily no police cars were around to see the near-accident. He was worried the police would think he was driving drunk.

"Chill already," Katherine chided him. "Okay, fine. If you're such a bad driver, your loss. I'll concede this wouldn't be the best time to die. How 'bout this? I promise I won't give you a blowjob while you're driving, as I'd planned, and I'll take it easy until we come to a stop at traffic lights. Like this one."

She frantically jacked him off until the light changed and then just held his throbbing erection in her hands as he drove on while she waited for the next light.

She resumed her story, but he was too focused on her hands and on trying to prevent an accident to pay any further attention to her words.

Still, her ministrations on his dick didn't really stop, they just slowed down, which drove him out of his mind with desire. She kept asking jokingly, "Are we there yet?" which didn't make things any easier on him.

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