Immigration Assistance
Copyright© 2025 by rlfj
Chapter 5: Kamasutra
Science Fiction Sex Story: Chapter 5: Kamasutra - The Sawbuck family lives on Lupina, the famous ‘Nude Planet’. It’s too warm to wear much in the way of clothing, and Lupina has a very liberal social and sexual lifestyle. Learn more about Mom, Dad, and their three teenaged children. This is part of the Nude Planet universe.
Caution: This Science Fiction Sex Story contains strong sexual content, including Ma/Fa Romantic Fiction Science Fiction Space Incest Gang Bang Group Sex Orgy Swinging Anal Sex Double Penetration Exhibitionism Oral Sex Voyeurism Public Sex Nudism
Current Time
Karina shook her head and smiled. Things had changed so much since then. Once she figured out sex, it was all she could do to go to school and not screw around instead. Then she realized that her classmates were an endless source of orgasms. All she needed to do was stay in school and go to the Friday night parties! Then when she seduced her brothers, an action which didn’t involve much more than laying on one of their beds with her legs apart and telling ‘Come and get it!’, it was settled. She moved in with them and got all the sex she could ask for.
It was Paul who suggested they enter the school’s Kamasutra contest. At first she didn’t understand what was involved. She was getting laid every day already. “It’s a contest,” he told her.
“So? What do you win?”
“Eternal fame!”
Karina laughed at that. “Paul, I am going to get that anyway!”
Her brothers laughed at that. Kyle answered, “The winners get to try out for the city contest.”
“Yeah, there’s a Caradoc Kamasutra contest.”
“Again, what do we win?”
“Fame and glory!” Kyle said.
“What about something more ... substantial?”
Her brothers shrugged. “Look it up,” said Paul. Like his brother, he had never considered entering the contest before, but Karina just might make it interesting. God knows, she was something special in the sack!
Karina did just that. She was curious enough to call up the details on her macrolink. There were two classifications, professional and amateur, and teenagers simply wouldn’t make it to the pro ranks. The pros were on the holovids in contests and game shows, not something for teenagers still in school.
The amateur rankings allowed anybody fourteen and up. There were different categories available. The obvious one was couples, one guy and one girl. Then there were several groups possible. Threesomes were possible, both types, two guys and one girl, and the opposite, two girls and one guy. The final choice was a foursome, any type. Then she got onto the message boards and looked at what they said. One major note was that nobody wanted to see boy-boy action. It wasn’t that it was illegal or unheard of, but it just wasn’t common enough to be capable of winning. Male homosexuality ran between five and ten percent of the population, the universal level, and most people just weren’t interested in watching it.
Then she started reading the rules. There were tryouts at the local level, their school, a final at the school, and then tryouts for the city-wide contest. The city-wide contest was the max for the amateur ranks; the planet-wide contest was only for the pros.
Then it started getting technical. Each session lasted fifteen minutes and each team had to be in action for the full period, and they meant action! Each participant would be monitored to ensure that when they said they were cumming, they were actually cumming. Females would be tested for flushed skin, raised skin temperatures, vaginal wetness, and involuntary contractions. Males would be tested for similar markers, such as heart rate, breathing rate, flushed skin, and ultimate ejaculation.
She showed the rules to Paul and Kyle, and they rolled their eyes at her. “How the fuck do they test you for this stuff?” asked Paul.
“No idea,” replied Karina.
“I can imagine some,” said Kyle. The other two looked at him. “Miniature sensors can focus in on each participant. Infrared sensors can detect blood flow, skin temperature, that sort of thing. If you can put microscopic leads on the people, you can test for temperature, heart rate, that sort of thing. You wouldn’t need wires or lights or lasers. It could all be wireless and invisible.”
Karina shrugged and they kept looking at the rules. Then it got amusing. She said, “If I am reading this right, once we start fucking, we can’t stop.”
“Huh?” said both her brothers.
“I am assuming that we do this as a threesome. Once I am penetrated, at least one of you needs to be inside me for the entire time.”
“Uh...”, said Paul, looking at her curiously.
“Once somebody puts their dick in me, whichever opening it goes in, it can’t leave until somebody else puts a dick in me. We can switch positions, but I always need a dick in me. If one of you pulls out the other needs to be putting it in at the same time.”
“This is getting complicated,” said Paul. His brother nodded agreement.
“You’ll need to fuck me for a full fifteen minutes without cumming. They also grade you on athleticism, artistic style, and grace. You can’t just fuck me, you have to fuck me fancy, like gymnastics in the Planetaries.” The Planetaries were planetwide sports events conducted every three years. Any system resident, planet-side or orbital, could enter. There were all sorts of track and field events, along with gymnastics, team sports, and water sports.
“I’ve never been graded on my fucking,” commented Paul. “Haven’t had any complaints, anyway.”
“That you’ve been told about. Maybe I should be checking with your classmates,” laughed his sister. She sent links on details of the contest to her brothers, along with holovids of last year’s contests. If nothing else, it would give them ideas for something to do before going to sleep.
It was the holovids of the previous contests that changed the twins’ minds. Thie first thing both boys said was ‘Wow!’ Paul looked over at Karina and asked, “Have you seen these?”
“Some, anyway. I scanned one or two to make sure I had the right stuff to send to you. Why?”
He said, “I’m not sure we’re good enough for this. Look at this. I’s not just sex. It’s gymnastics and dance and music.”
Kyle simply raised an eyebrow, but Karina replied, “Get real! How hard can fucking get?”
“This hard!” He cued up one of the entries for her. In it, two men were screwing a woman. There was music playing in the background and they were fucking her to a heavy metronome beat, plunging in and pulling out in time with the rhythm. All the action was on a bed, and the threesome went through several different positions. She was spit-roasted with the men at each end, did a sixty-nine with one guy while the other fucked her from behind, rode one man while sucking the other guy as he stood above them, and even made a sandwich, with one guy in her pussy and the other in her ass. They were all naked and even the guys had makeup to highlight their looks, which Karina considered average at best. At the end, they pulled out, one after the other, and gave her a facial.
“Oh, shit!” commented Kyle. “Are they all that tough?”
“That wasn’t even the winner,” answered his brother.
“Yeah, but we can do better than that,” argued Karina. “That one we just saw, there’s a reason they didn’t win. Yes, they did a bunch of different positions, but nothing that we haven’t done, nothing new. The music was nothing but a bass beat that never changed. Where was the style and grace? This is nothing more than what we are already doing but with music in the background. We can do better.”
“How?” was Paul’s sarcastic question.
“Give me a chance to figure something out.”
That chance came a week later. She called her brothers together and used her macrolink to forward them a new holovid. “I put this together over the last couple of days. First, I analyzed roughly two-dozen holovids of MMF threesomes and catalogued the positions used. Then I did the same for the music, what was the source, what was the tempo, was it popular music or AI-generated porn background, that sort of thing. Finally, I got onto a system that allows you to generate your own AI-generated porn. You can enter profiles of the people you want to see and the positions they will fuck in and the order they do them.”
“How much did that cost?” asked Paul.
“Your next allowance. Kyle’s, too. You guys really need to change your passwords.” The twins looked at each other. She couldn’t really have hacked their account, could she? Karina ignored them and said, “Action!” She hit Start.
Her brothers watched as generic simulacrums appeared. Two of them were male, with P and K on their chests, medium-tall with brown hair and medium size erections; the female was much shorter and blonde. When Karina hit Start a second time, music began, and the images began fornicating.
“Now, this is just a possibility. I programmed it so that the music starts slowly and then increases in speed and volume. We can obviously switch who is doing what to me and in order, but we have to make sure that somebody is always fucking me if the other is moving around,” Karina said. “We start out with me wanking you two and you playing with my tits and pussy and alternating. We want to keep alternating, to show ... I don’t know, grace, I guess. Then I’m on a bed and somebody gets on top.” One of the males’ images began fucking the female, though not in a full missionary position; the second male knelt at her head and fed her his cock. “Now, from this point on, somebody has to stay inside me at all times.” The image in her pussy pulled away and moved up to her head. At that point the female image had to open its mouth wide and accept both cocks. Once that occurred, the first cock pulled out and began to fuck her. “We’ll have to practice this a lot!”
The next sequence was similar, in that while keeping the cock in her mouth, the female image rolled over and came to its knees. The male who had been fucking her reinserted himself doggy style. Then he pulled out and fed his cock to her mouth next to the other image and the first image pulled out and began fucking the female doggy style. The next sequence was similar except the males were standing and the female was bent over. “Here’s the finish!” The male image fucking the female image from behind helped her to stand up, so he was fucking her from behind. Then the second male held the female by the waist, and she lifted her legs off the floor. Using the cock behind her as a pivot point, the males turned the female, so she was facing the one who had been fucking her from behind. Then the second male sandwiched her and began fucking her from behind, in the ass. “This is where it finishes. You guys give me a vertical sandwich fuck and when the clock counts down to zero, you cum in me simultaneously.”
Paul rolled his eyes and stared at his sister. “You’re not asking for much, are you?”
“We have to hold out and then time our cumming in you or on you?” added Kyle.
“Precisely! It’s not just fucking, but stylish fucking. We have to move gracefully and in sync. It’s one of the things I was noticing in the threesomes I was analyzing. Some of these threesomes looked like they had no concept of moving with the music. It’s going to take some practice, but we can do this,” said Karina.
“This is nuts!” said Paul. His brother agreed.
“After dinner, let’s try something simple. If I can get my mouth on both of you at the same time, then we can switch positions as needed.” They agreed, simply to get an after-dinner blowjob if nothing else.
It turned out that the double blowjob was doable, if just barely. Karina sat on the edge of their bed and the twins stood in front of her, as close as they could. She leaned forward, opening her mouth and they pushed their cocks towards her. It wasn’t the most comfortable position, but she did manage to get their cockheads in at the same time. Karina kept her mouth as open as possible, and then began sucking them, first Paul, then she motioned Kyle to approach and stick his cockhead inside as Paul pulled out, and she then began sucking Kyle alone. They practiced this maneuver several times and then the boys jerked off on her face and tits. Karina cleaned up and they spent the rest of the night practicing some of the other positions on her demo.
For the rest of the week, the threesome practiced the transitions that Karina had planned. Most went well, though it was obvious to all of them that this was less about sex and more about gymnastics involving cocks. They even had a stopwatch app running so they could determine how long each transition took. Karina would then go back and adjust her model while keeping the routine within fifteen minutes.
The biggest problem was that the final transition was simply impossible. Karina’s model envisioned that one of the boys would be fucking her from behind, doggy-style, while she gave the one in front a blowjob. Then she would stand so she was vertical, while the one who she had been sucking stood up and tried to lift her and turn her on his brother’s cock, like she was pivoting on an axis. It was simply impossible. No matter what they tried or who was in front and behind, she always slipped off the cock. That meant penalties or even disqualification.
“It can’t be done,” said Paul. “We can’t do the rotation, whether it’s him or me.” Kyle nodded.
“So, how do we rearrange things. I still think the finish should be with me in a sandwich.”
Kyle nodded a second time. “We need to do one of two things. Either the one who is fucking you from behind has to fuck your ass instead, or if we are going to start with a cock in your pussy, it has to be from the front, and we forget the rotation. We just can’t do the rotation on a single cock.”
Karina sat back down at her computer console and called up her modeling package. She saved her work and then had the system try both versions. “Here’s the next question. Can either of you hold me upright with your cock inside me, either front or back? I know we can do the vertical sandwich because we’ve done that. Still, you guys are twenty-three centimeters taller than me. If we go with a cock up my ass and you try and get me vertical, will that even work?”
Paul looked at his brother. “I don’t know about that. I am sure that if we were facing each other, I could lift you with my hands under your ass, and if you put your arms around my neck, we wouldn’t slip apart.”
“Let’s try it,” said Kyle.
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