Big Bang Ch. 03

Author's Note:

All characters engaged in sexual situations are eighteen years of age or older. All characters and events are fictional. Any similarities with actual events or persons, living or dead, are purely coincidental.

This is a work of fiction, and as such, certain events or situations may be improbable, and certain details may not correspond to real life. If you're looking for strictly likely situations and exact reality, I suggest you skip this.

WARNING:This story contains brief scenes of lesbian activity. If this is not to your liking, please skip the last few paragraphs.

WARNING:This story contains 'sciency' stuff, set in the year 2122, and some passages that may require more than the average amount of conceptualization to understand. If this is not to your liking, please do not continue.

*****

Jen had not fully made the decision until she heard her brother's voice from inside his cabin telling her to come in. She knew full well that the knock was the actual point of no return for her though.

Her knees felt weak as she crossed the threshold, both of his cabin and something that she would never have considered seriously until a few days ago: cheating on her spouse, and incest with her brother.

Tim understood, deep down in his heart, exactly what was happening, and was terrified. The basis of his fear surprised him. He wasn't afraid because of what he knew was about to happen was taboo, was something his crew, their mother, and especially their spouses, could never know about. He was terrified because he had never been with a woman, and this was going to be his first time.

"Jen...are you..." Tim's voice wavered, then stopped.

"I'm more certain than anything," his sister whispered as she looked down at him.

"Are you protected...you won't get..."

"I always take the recommended measures..." Jen moaned as she ripped her uniform shirt open and let it drop behind her.

"I'm...a virgin?"

"I know, I'll be gentle, dear brother."

Jen toed her shoes off each foot and pushed the rest of her uniform slowly over her hips, down her graceful legs and off her feet.

"I think you're the most gorgeous..."

"I know. I can tell," she groaned in a hoarse whisper as she knelt between her brother's knees and ran her long fingers along both sides of his turgid penis under his uniform.

Tim collapsed backwards as his sister grasped the waist band of his pants and pulled them toward her. His butt instinctively rose off the bed to allow them to descend to his thighs, releasing him from their confines, then to his knees until she stopped with them around his ankles.

His sister gazed at him for a few slow seconds, her face mere inches from his throbbing erection. She was surprised, not at his length or girth, but at the hunger which welled inside her.

She had only been with one man before. Her spouse was, as much as she knew, as good as a girl could wish for. She had apparently been wrong. She remembered, only a few weeks after their official union, playing with and measuring her spouse's what she thought was phenomenal cock before using it to pleasure herself. He was almost five inches long, from base to tip, and almost a full inch across at the widest point.

The manhood she was about to feast on was at least two inches longer, but the girth was nearly twice as wide as the man she was used to.

"Jen..." Tim moaned as his sister wrapped her fingers around him. "Oh god, we're..."

Jen's mouth interrupted his thoughts, but not with speaking. The tip of her tongue touched his penis near the base, then gently moved along the bottom of his cock, from base to the rim of the glans, then her lips pressed tight around his head and she took his entire length into her mouth. His head pushed against the back of his sister's throat and he expected to feel her gag, like his spouse always did. Instead of gagging, Tim felt his sister's throat vibrate, and he could actually hear a low hum from her.

"Fuck...Jen..."

Tim raised his head from the bed and looked at his sister. Her lips were pressed into his abdomen and her eyes were locked on his.

He couldn't stop his head from rolling back onto the bed when she began her slow, exquisite ascent along his shaft. He always thought that men, especially the men he had been with, had to be better than any woman at what his sister was now doing to him.

He knew now that he was wrong about that.

Jen rose from her knees, without releasing her brother's penis from her mouth, and moved onto the foot of the bed. She continued to caress his thick, hard penis in her mouth as she slowly moved her body in a pivot centered where she and his cock joined until she could swing one leg over him.

Tim had learned about female anatomy in school, from text books, but had no firsthand knowledge, and the sight of his sister's vagina above his face was a little concerning to him. He had only a vague idea of what he was doing. Instinctively, his arms rose and circled around her, poker oyna caressed up the back of her thighs, and gently pulled them away from each other where they joined her soft butt cheeks.

He witnessed, for the first time ever, a woman's labia part and the glistening moisture inside. When she lowered her hips closer, his eyes closed and his tongue stretched out and touched the pink opening he had seen.

She tasted musky and sweet as her juices cascaded through his mouth and his nostrils were filled with an aroma he wasn't familiar with. His tongue moved slowly toward his chin and flattened out until he felt a hard knob, and he flicked it.

His sister's body tensed, and she pushed down against his face. He heard, or felt, a soft moan escape from the woman, his sister, and she paused for a split second in her oral ministration of his cock in her mouth.

He took this to mean she liked that, and flicked her hard clit again, then again with his tongue before moving back to her opening. Her juices were flowing more now, and he lapped as much as he could into his mouth before returning to her clit, which he flicked with his tongue, then sucked between his lips.

Jen couldn't think about anything but the sensations her brother was giving her, in her pussy. She stopped moving, except for the involuntary twitches of her hips. She was panting around the delicious penis in her mouth, and she felt him throbbing against her tongue.

"Ti...Ti...Tim..." Jen panted around the penis in her mouth, then she thrust her hips down hard against his face. Her body shook and twitched as her orgasm swelled, then burst from her lungs in a low, lingering growl.

Jen rolled off her brother's face and lay on her back beside him. She was breathing hard and her eyes closed as she tried to regain her composure. She was barely aware of her brother when he pulled his uniform shirt off and himself up onto the bed.

She felt the bed shift and her brother's body move as he positioned himself. He opened her legs further with a knee, then was above her, between her legs pressing his engorged cock against her gaping pussy.

"Jen..." he murmured, but her hand silenced him as it clasped across his mouth.

She found his rock hard cock with her other hand and wrapped her fingers firmly around his girth to guide him, his entire body, just slightly lower against her. Their eyes were glued to each other and she wordlessly positioned his bulbous head against her opening.

Tim tried to mumble something through his sister's hand, but Jen wanted no more discussion. She wanted her brother, she wanted his cock inside her, and there was nothing left to talk about. She raised her feet and pulled them hard against his butt.

Tim's eyes opened wide as he was forced slowly inside his sister's hot, wet vagina, and she closed her eyes with a low moan.

Tim felt his sister relax slightly and move her legs to cross her ankles at the base of his back. Her hand was still clasped on his mouth, but moved to his shoulder when her other hand moved to his back.

"Fuck me, Tim. Please, fuck me," Jen murmured without opening her eyes.

Soon the siblings were moving in unison, Tim thrusting himself into the woman below him and Jen meeting his thrusts with her hips.

His grunts and her whines were a harmony of pleasure, and with each coordinated thrust, increased their tempo.

Jen felt her second orgasm building in her belly. She was rapidly approaching the abyss of pleasure. There was only one thing she wanted more than the release of her orgasm. She wanted her brother to experience his first climax with a woman, with her, his sister.

"Cum with me, Tim...let go and cum inside me..." she moaned into his ear.

Tim could only think of one thing now: his orgasm, inside his sister. His pace increased, the sound of his balls slapping his sister's ass added percussion to their duet of ecstasy.

Tim's body stiffened and he buried his cock inside his sister. His cum exploded up his shaft and into her as she contracted around his hardness. Her body shook wildly, the only thing keeping them together was his cock buried to the hilt as he jerked his cum inside her, filling her completely with his hot, virile spunk.

Tim had never experienced a climax so intense, or inside a human orifice other than a mouth, a male mouth. He collapsed onto the body of his sister under him.

He was only vaguely aware of his sister rolling him off her, but when he felt her lips on his and her tongue slip between his panting lips, he returned her kiss with equal passion.

**

The nanobots in Jen's body had already began the work they were programmed to do. They had eliminated dormant viruses she had picked up over the course of her life, repaired any defects in her body, and, as instructed by Truana's coding, negated anything that prevented her from producing a more than healthy set of twins.

The IUD that was implanted prior to their departure from Earth, had been completely dismantled and expelled through canlı poker oyna her bodily waste, as well as any trace of the chemicals to assist in preventing pregnancy.

Jen, however, was different from the women Truana was familiar with. Truana's colony had bred out of existence the genetic tendency to produce multiple eggs during an ovulation cycle.

The nanobots now could fulfill the rest of that particular code sequence, and ensure that Tim's sperm would not only be perfect genetically, but also fertilize Jen's genetically perfect egg, or in this case, eggs.

The trait for producing twins had been eliminated prior to the development of nanobots, so was not included in the list of undesirable possible gene mutations, so, by default was assumed to be desirable. As such, being present in the mother's DNA, would be ensured in the DNA of female offspring.

**

"I don't think he's ready," Jen murmured into Tim's ear. She was curled up next to her brother, naked, stroking his soft penis with her delicate fingers.

"I'm more than a little bit surprised he's even still attached. Anyway, we only have a couple more hours before we need to be on duty, and I'm starving. Aren't you starving?" Tim asked without opening his eyes, or moving either hand, one cupping her soft butt cheek and the other playing with his sister's erect nipple.

"I am hungry, but mostly for your cum. I haven't gotten it in my mouth yet, since you insist on putting it in my pussy."

"I haven't touched a pussy for thirty-five years, and just now realize how much I've been missing."

"Do I need to worry about you putting that glorious cock in other pussies now that you've been reminded?"

"I doubt it, Jen. My sister has the best pussy I could imagine."

"Not even some alien pussy, brother? I think you've been dreaming about her pussy some, at least before you got into mine."

"Jen, she's got a human pussy too."

"That's practically admitting you've been thinking about fucking Truana, Tim."

"OK, yeah, I thought about...imagined doing it with her."

"I know, Tim. I was there...or she was there with me. I kind of miss her, you know, being with us. I was afraid you wouldn't want me if she weren't around."

"I still...wanted you."

"You still want me?"

"I do, but I'm afraid one more time without some food, and rest, he's gonna fall off."

"Tim, what about our spouses?"

"They can't ever know. You realize that, right?"

"I was thinking, you know, that maybe we tell, um, absolutely nobody, ever, anytime, for any reason. That's like a hard no."

"We'll need to sneak around then..."

"You want to continue...fucking me, Tim? Even when we get home?"

"Don't you?"

"I'd be more than happy to fuck only you, ever, my sweet, gorgeously hung brother."

"Hmm, you like my dick, Jen?"

"Nope. I love your dick," Jen purred. "But I'm taking a shower, so I don't smell like sex when you take me to breakfast."

Although Tim's well-worn prick could muster one more erection, he couldn't quite pull off another ejaculation while he gave his sister two of her own in the massaging waves of his harmonic shower.

**

Tryson knew enough to know that there was no security to prevent, or detect, what he and his sister were doing, but his hands were still shaking as he launched the small utility vehicle through the open exterior doors of the vessel that had carried them to their rendezvous with the primitive humans.

He also knew that it would be a bumpy ride as the small vessel broke away from the inertial frame of the larger vessel he hoped they would never see again. He hoped they survived, and that they wouldn't be missed long enough to get to the hiding place he had picked.

The Politician wouldn't want to spend more than a day searching for them, because he would have to do it without permission from the Council. It would be faster to continue home, then come back if so ordered, than to sit and wait for a round trip communication. Any message sent would take almost ten years to arrive at the City, then another ten years to return. It would only take the vessel twelve days to get home, then twelve days to get back to their current location.

"Hold on, Truana!" Tryson shouted as he felt the small vessel begin to bump when it entered the turbulence of space-time cause by the other vessels propulsion system.

That was the last either remembered before blacking out.

Truana shook her head, still groggy, but not completely aware of why.

"Tryson?" she whispered as her eyes focused on the interior of the small vessel they had stolen. The only illumination came from the distant star whose system they were now adrift in.

"Tryson!"

"Ugh..." Tryson groaned from the pilot seat, across the cabin from her.

"Are you alive?"

"Probably. Since I'm talking, I think there's a good chance I am."

"That wasn't a little bumpy. You said it would be a little bumpy."

"Nobody has ever done internet casino that, exit the inertial frame at superluminal speed."

"What? Why didn't you tell me nobody ever did that before?"

"Cause you wouldn't have come with me if I had."

"We could have died," Truana whined.

"Yeah, instead of spending the next twenty-five years in space to be imprisoned on the Home World."

"We didn't know that."

"We knew about the trip."

"Is the vessel dead, or what?"

"Working on it...hush."

Truana sat as motionless as she could, listening as her brother clicked buttons and switched in the stillness of the cabin. She could tell the temperature was already dropping, and didn't know if she would rather he got the life support systems up so they could starve to death gradually, or that he couldn't and they would freeze to death sooner.

Truana looked at her brother as lights and screens began to flicker and come to life around them. She wasn't going to relax though until she knew the propulsion system was online and they were on their way.

She wasn't convinced that if they were caught here, dead in space, that the Politician wouldn't just crush the entire utility vessel with their tractor beam then go home.

Truana was a little bit sad that she hadn't told Tim and Jen about that. It wasn't a weapon, exactly, but could be used as one, especially against a slow, unarmed vessel like the primitive humans had. Or the one she now helplessly occupied.

"We're set. Everything's online," Tryson announced after a few minutes. Truana felt her body settle against the seat as the artificial gravity kicked in and offset the forward motion of their propulsion system.

"I'm still sad about leaving my children."

"Our children, Truana."

"I hope our spouses are good to them."

**

"What can I do for you, Jennifer?"

Jen sat down in the chair in front of the doctor's desk in sick bay before speaking.

"I'm just, I don't know, tired? Maybe it's been a couple years since I've taken one of these trips to Titan and the minimal gravity and lack of excitement is wearing me down. I think a B12 shot would do me wonders."

She knew she was lying, a little bit. She had plenty of excitement these days. The past month she had been having the best sex of her life, whenever she could sneak off to her brother's cabin, which was basically every night.

He had showed up at hers a few times in the middle of the night too, but she had run him off, just to follow a few minutes later. She didn't want to run the risk that any of her next door neighbors would hear them making love in the middle of the night. She wouldn't have cared with anyone else, but she did care that it was her brother she was making the noise with.

All the command crew had spouses back home, even the youngest, Jules. Jules was the biggest culprit when it came to hooking up. She had hooked up with Ron. She had hooked up with Heather. Jen wondered if she had even hooked up with Tim, before she had finally started fucking him. She kind of felt left out, just a little; Jules hadn't even tried to hook up with her, not directly.

She seriously thought her lack of energy was simply explained: too much sex.

"I'm not going to just give you a B12 shot because you say you're tired Jennifer. Come with me and let me run a scan just to make sure everything is fine."

Jen followed the forty something woman out of the office and into a small private room across the hall.

"Lay on your back and relax. This will take just a minute," the doctor instructed.

Jen knew the drill. The scan was fast, but reading the results could take a minute. The doctor was going to be looking at pretty much everything to do with Jen's body, and even with some hints from the computer, it could be a little time consuming.

"Hm, Jennifer? When did your IUD come out?"

"It didn't."

"You got one right before we boarded, right? That's what your records say."

"Yep, like always."

The doctor had missed the small flashing box at the bottom of the screen, mostly because she wasn't accustomed to seeing one. In red lettering, her computer was telling her "Record Mismatch".

Jen still had her eyes closed, so she missed the concerned look on the doctor's face.

The doctor knew that a person's antibody inventory was almost like a fingerprint in that each person and their immune system was unique. Medical science could pinpoint the exact strain and lot any vaccine used, and the strain and date of a contracted virus. This information was matched to a patient and charted. WASA kept a complete up to date record of all employees so a physical exam could be performed at the end of each mission and compared to the medical records to detect new or unknown virus, bacteria, and anything else that a person could pick up in space.

She touched the flashing red letters on her screen and her computer brought up a list of mismatches between the medical record for Jennifer Clive and the body on her table.

The list was long. Pages long. Every vaccine she had been given as a child, every strain of influenza she had lived through, chicken pox when she was a child, they were all listed on the screen.