After a fifteen-minute drive, they finally reached Kim's house.
They were both so worked up that neither of them retained the slightest reluctance to fuck each other.
Alan pulled the car into Kim's driveway, after which they ran into Kim's house as fast as their feet could carry them. He sported such a massive wet spot around his groin area that it looked almost as though he'd pissed on himself. But he didn't care how funny he looked; he just wanted to get to a bed.
Katherine practically ran over Kim, who stood in the front doorway to open the door. She had quickly put on her cheerleader uniform, which nicely showed off her trim and petite figure.
Katherine briefly French-kissed and groped her. She was very grateful for how Kim had helped to make this day possible. She frantically asked her, "Where's the bedroom?" It was clear that she did not want to waste another moment. If her voice wasn't a clear enough indicator, then her nipples certainly were; they were so erect that even her areolae looked puffier than usual through her top.
Kim just smiled and pointed upstairs.
Brother and sister ran upstairs in a flash.
They sat on the bed as Katherine urged, "Quick, Bro, get the condoms!" They'd had plenty of foreplay in the car, and were ready to dive right in.
Clothes flew into the air as Alan fumbled around with the condoms.
Katherine impulsively reached out for Alan's hand. She suddenly appeared calm as she said, "Brother, thank you. I know that this is going to be the greatest, most exciting day of my life. And the best part has just started! In a minute, neither of us will be virgins anymore!"
The two held hands for a brief pause. He looked into his sister's brown eyes, saw the passion and excitement there, and said, "I love you, Little Sister!"
She looked back with a high, rosy color in her cheeks, and said, "I love you too, Big Brother! And I'm so glad we've found a new way of loving each other."
They kissed with passionate intensity. Katherine's heaving breasts brushed against his chest; her nipples were hardened rocks which poked into him like hot coals.
Katherine finally pulled him away. "That's great, but let's not wait another second!" She lay down on Kim's bed face up, and said, "I'm waiting for your big dick!" To further illustrate her words, she opened her thighs wide and ran an index finger over her rigid clit, which was engorged and stood out proudly from its hood.
Alan knelt on the bed between her legs, positioning his cock above her fuck hole. He looked at her and she wordlessly gave approval for him to go on as she hooked her heels around his waist. He took a big breath and tried to clear his mind. His whole world was now centered on his sexy, lust-filled sister.
She writhed beneath his body in impatient anticipation. She was hot and willing to accept him into her body, fully and completely.
She looked up at him, panting with longing. She thought, I feel like I've just run a marathon, and we haven't even started to fuck yet!
He pushed his erection into her. It slid down ever so slowly into her very tight pussy. He momentarily lost track of all parts of his body, except for a spine-tingling focus on every nerve in his dick. Warmth, wetness, tightness and softness - those were the sensations that filled his mind.
And as wonderful as it felt to slowly slide his insistent impaler into his sister's depths, even more wonderful was the sense of oneness and love he felt coursing between the two of them.
There were a million things he could have said, but all he could manage was a guttural "Ugggghh!"
"Oh, yeeeeesssss!" she yelled in return, a cry of release and pleasure. Although she'd never had a cock inside her before, from the very first instant it was in her, it felt fantastic. She felt the fullness, heat, and rigidity of her brother's dick as it moved and throbbed deep within her. His whole body covered her and enveloped her.
She clutched his arms fiercely.
Already she began to feel the onset of mini-climaxes, even though Alan had not yet begun to move inside her. She was very glad that her hymen had been broken accidentally five or so years earlier, so there was no pain or blood, only the sense of being stretched to incredible fullness. She could feel her brother's hot breath beat down on her neck.
Alan slowly pushed his hard dick in until he felt it could go no further, sure that he'd hit the impassable entrance to his breathless sister's cervix. He stayed there for just a moment, to enjoy the feeling of being so deep within her.
Impatient, she not-so-subtly wiggled her hips beneath him. She was eager for more.
He slowly began to pull back out. The coolness of the air around his shaft as it emerged was in extreme contrast to the heated depths he'd enjoyed just a second before. Then he pushed in again slowly, as though driven by a deep, primal urge. Then out. Then in and out.
He built up a rhythm and reveled in the fact that his sister, too, had begun to move in sync with his gentle thrusts. Katherine, athletic cheerleader or not, had always seemed so soft and fragile, at least from his protective, brotherly point of view. He didn't want to hurt her.
When her upwards thrusts became more powerful, worries about her fragility subsided. He began to push his thick meat into her body all the way to the hilt.
She wrapped her arms around his back, holding on to him as if she were on a wild roller coaster ride.
Out of the blue, Katherine started screaming, "Yeeeeesssss! My brother is fucking me!" Her plentiful breasts moved madly with the motion of Alan's thrusts and she loved that and everything else so much that she had to let it out. The sound carried into every room of Kim's house, but Kim had assured them earlier that they could yell to their heart's content and the neighbors would never hear, provided they kept the windows closed.
Kim, meanwhile, sat in the room next door and fucked her own cunt with a dildo as she got off on their sounds and screams. Even from a room away, she could already start to smell the pungent odor of their sex. It drove her wild with envy and passion. She shoved the dildo as deep inside her as it could go as she imagined what it would feel like to be plowed like Katherine was getting plowed just one room away. She may have not liked men, but she'd decided she really liked Alan's dick.
"We're fucking! We're fucking!" screamed Alan joyously. He, too, reveled in the freedom to yell to his heart's content, after weeks of furtively and quietly sneaking around in his secret sexual life. He yelled as loud as he could, "I'm fucking my own sister, and I love it! Woooh, yeah!"
Their thrusts were no longer anything like the soft shoving from a moment before - they were steaming along in an insistent and solid rhythm.
Alan pistoned his pole into her as deep as it would go. He marveled at the hot-cold-hot-cold sensation of each insertion and extraction of his prick as it pounded into her, seemingly on its own volition.
"Fuck me! Fuck me! Fuck me!" she yelled in time to his thrusts as her large breasts slapped against his body. "More! More!"
There was no pretense at drawing anything out. They just wanted to cum as fast as humanly possible. Arms and legs became a blur of activity as they threw their bodies into one another and the powerful scent of sex literally poured out into the room from where they were joined in glorious abandon.
Things moved at a feverish pitch until neither brother nor sister could hold back any longer. Both teenagers stiffened as their bodies cried out for release. They reached climax together while yelling a seemingly endless stream of incoherent screams.
Alan felt his jism course through his prick, like a fire hose suddenly filling with water. Then the semen exploded from his penis and filled the depths of his sister's vagina. He thought, I'm doing it! I'm doing it! It's happening! He continued pushing his cock deep inside her and, almost instinctively, stopped on the downstroke so that he could deliver his seed at the gates to her womb.
Katherine felt the coursing and throbbing of his prick, timed to the beat of his heart. Then she felt the splash of his seed as it filled her depths, flooding her with tremendous warmth. All of a sudden it occurred to her that she shouldn't be feeling such sensations. The condom! Where's the condom? Too busy kissing - we forgot! Ah, hell. Just sit back and enjoy it. Oh fuck! God! So good! Screw it! Screw ME!
She calmed down enough to begin making sense with her screaming, and shrieked, "Screw me! Screw me! Screw me!" over and over.
Alan collapsed on top of Katherine. The two siblings just lay quietly for a minute as they recuperated, breathing heavily from their exertion. Both of them could feel Alan's semen as it slowly bubbled out of Katherine's cum-filled cunt and around her brother's semi-erect shaft.
He rose just slightly enough off her body so that he could look into her eyes. All he saw there, as she looked back up at him, was love, tenderness and deep appreciation.
Alan asked, "Did that hurt at all?"
"Not in the slightest," she replied. "It felt like your cock was born to be inside me. A finger or dildo just doesn't compare with the real thing! Now that I know how good it feels, I want your cock inside me every minute. Every minute of the day. Brother, do you promise to fuck me every minute of the day, for the rest of our lives? Will you make me your complete fuck toy?"
"I'll try my best," he answered, and laughed gaily.
Yes! Yes! a rapturous voice inside his head continually shouted while she happily squirmed in joy beneath him. He was on the highest of highs.
They rolled over to talk. He thought out loud, "You know, it's really amazing to finally fuck a woman. But for that woman to be you, my sister, it's just too much. I can't believe it."
Katherine hugged him firmly, and said, "I know. It's my first time too. We're on the same wavelength."
"Sis, I love you so much!"
"Oh, Brother! Me too! I love you so much, my heart is gonna burst!"
Flying high, he quipped, "Well, let's not have that happen. We don't want to make a mess in Kim's house."
She just laughed. Then the great idea came to her, "Hey, let's do it again, already!"
"Okay! I should have no problem getting ready to go with you to arouse me. But you know, it's funny, I'm really thirsty all of a sudden."
"I'll get you something to drink!" they heard Kim yell at them. They hadn't closed their door and she could hear even their whispers.
A minute later she walked in with a can of soda in her hand. She was buck naked, like them, though with painted-on panties, with her own cum dripping visibly down her legs. "Don't mind me," she said. "I'll leave you two alone for your special time together, but I just had to say you guys are fantastic."
She handed the can to Alan. "I'm shaking like from an earthquake, in the next room, just from hearing the sounds of you two. I can't wait to watch, or even get that big thing stuffed inside me. I wish I had a brother to fuck too, but I'm an only child. Now drink up, big boy, and give us round two."
They all smiled at each other. "Alan, your fuck toy is waiting for you," Kim added in a husky voice, with a strong emphasis on "fuck toy." She walked back out of the room.
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