The following topic is top secret. Is it even a true story? Well, it's so secret that even that can't really be verified.

We are on the international space station ISS. The working day is over for the crew, only one last experiment is still open. The Russians have long since withdrawn to their part of the station. The four remaining astronauts quietly close the hatch between the Russian and the American area, because the following experiment is, as I said, top secret.

Ready? asks the station commander – let's just call him John. The other three, let's call them to protect their true identities, Stevie, Vanessa, and Bill, nod to John, who hovers in a corner of the room with the camera, for him to record the entire experiment. Bill leads the way and takes off his sweatpants. Vanessa starts with her t-shirt, under which her bare breasts are revealed, because a bra is pretty much the least necessary thing you can think of in zero gravity. Stevie removes all clothes except white tennis socks. All four are amused, because they have never seen two penises that, although not erect, still point steeply upwards. But this situation has to change, and so Stevie and Bill slowly begin to masturbate while Vanessa undresses completely, floats naked over to John at the camera and Bill and Stevie watch from a distance.

Where's the lube? Vanessa wants to know. "Hovering right over your head," says John, catching the tube in his hand and handing it to Vanessa. She opens the tube and gently spreads the contents over her labia and buttocks. "You could give us a little help," Stevie laughs at Vanessa. "Everything in its own time," she replies, "you can help each other." Bill shrugs, swings over to Stevie and flips him over with a skillful swing. Then he pulls his buttocks closer and takes his already semi-rigid cock in his mouth. "I would help you too," says Stevie, "but I'm not gay." "Everything in the service of science," reassures Commander John, "everyone has to make their sacrifice." "All in the service of science," Stevie grumbles, sucking Bill's cock in his mouth. "Well Commander, don't feel like participating?" Vanessa smiles at John. "I'd like to, but someone has to take care of the scientific documentation," John shrugs his shoulders, "but maybe I'll come back to your offer another time." "But only in the service of science," laughs Vanessa.

Stevie and Bill float like an entangled ball in the middle of the room and suck each other's cocks until they're both rock hard. Then they separate from each other. "We're ready Vanessa" reports back to Bill. "Me too," replies Vanessa, "who would like to start?" "I'd like to start," says Stevie, floating over to his colleague. He catches her, pulls her close and starts licking her breasts, which don't hang down slightly as usual due to the lack of gravity. But Vanessa thinks of her job, clasps Stevie with her legs, pushes her upper body away from him and bends far back. As a result, her well-prepared pussy turns right in front of Stevie's hard penis, and he doesn't hesitate for a moment and shoves it into Vanessa's vagina.

For the record, Vanessa speaks directly into John's camera, "Astronaut S. has inserted his genitals into astronaut V. The feelings are a little weaker than expected, which is probably due to the weightlessness. We start with rhythmic movements”. Stevie is in top form and passionately fucks Vanessa's pussy. "We're finishing the first test phase," orders Vanessa, "and Astronaut S. will now begin the next stage." As previously discussed, Stevie disengages from Vanessa's leg brace and turns her back to him. "I'm going to penetrate astronaut V. anally now," reports Stevie, pressing his wet cock against Vanessa's anus. "You have to push a little harder," reports Vanessa, and Stevie grabs her waist and pulls his colleague over his penis. “I have now penetrated astronaut V. anally and am noticing very strong feelings. The tightness of her anus compensates for the lack of gravity. I'm going to start fucking now - all for the sake of science," adds Stevie with a wink.

"And what will become of me?" complains Bill, "I'm also part of the test series". Vanessa nods and waves Bill over to her. He hovers right between Vanessa's legs and holes his waiting penis directly into her well-prepared pussy. "Stage three of the experiment," Bill speaks into the camera, "we've gone over to double penetration. It feels very good, but the movements have to be very well coordinated in order not to suddenly drift apart". After a few minutes, the three have found their rhythm and Commander John nods contentedly behind the camera. Somehow the whole thing turns him on so he pulls his sweatpants down a bit and masturbates without neglecting the camera.

"Okay, I think we've been able to convince ourselves of the feelings during fucking," Vanessa continues her report, "we're now coming to stage four, the simultaneous orgasm. I ask the two male astronauts involved to rate how close they are to the target on a scale of 0-10 in 10-second increments. I ask for absolute concentration so that the project succeeds”. Bill reports a 6, Stevie already an 8, Vanessa herself also a 6. That's why Stevie slows down and doesn't push Vanessa's anus so deeply anymore. Bill reports a 7, Vanessa is now an 8 and Stevie sticks to his 8. Bill intensifies his thrusts and Vanessa tightens her vaginal muscles to propel him forward. A 9 comes from Bill, and also Vanessa and Stevie both report the 9.

"Be careful that you inject into Vanessa's holes, otherwise we'll have a mess in the whole station," warns the commander. Stevie finally reports the 10, and Vanessa and Bill also join. Bill and Stevie hold back for just a moment, then flood Vanessa's insides with their sperm. At the same time, her abdomen begins to tremble and a grandiose orgasm floods Vanessa's entire body.

After five minutes, the three astronauts carefully separate from each other, careful not to release a drop of semen into the room. Only John is still floating behind his camera, masturbating. "We're adding a sixth try outside of the test series," reports Vanessa, floating over to John and determinedly taking his cock in her mouth. It takes less than a minute for the commander to erupt in a hot gush into Vanessa's mouth. Only when she has swallowed his last drop does she let him go.

“For which university was this series of tests actually intended?” the three active participants want to know from their commander. "I can't tell you that because it's top secret," John winks back.