It was obvious to everyone that the standard NASA space-toilet (developed at a cost of over $23 million, an embarrassing fiscal over-run) would never fit through the passage to the women's quarters. So it was back to the drawing board; but this time Karen, Sasha, Sharon and Connie flexed some political muscle by demanding during a live broadcast that a certain small company get the contract. The company was owned by Roberta, a former female astronaut who was the only person the women on the station trusted.
Sharon and one of the men handled the space walks to install and insulate the 2" tubing that would connect the toilet to the existing waste tank, plus the water pipe for flushing. Meanwhile Sasha and Connie did the inside insulation of the unit.
Sharon carefully stows her EVA suit as her partner Tom struggles out of his. Tom looks at her in her leotard and gives a low whistle of appreciation, "Not bad, Tadpole." It is the first time he has seen her in anything so tight.
"Down boy." Sharon grins and darts out of the chamber, leaving poor Tom with a last vision of her firm ass, clad in jersey fabric without leg holes. As she glides through the Ops center she stops to ask her boss, Mark Anthony, "Any pressure drop in the holding tank?
Mark turns to Sharon and grins, "We lost about half a pound psi in urine vapor, but it stabilized. I think we can live with it. Nice job, as long as it holds."
"It will." Sharon sticks out her tongue at her fellow astronaut, and before he can return the rudeness she swings out of the room. Less than a minute later she propels herself into the huge cylinder of the women's quarters. Her three room-mates all hang there in space, staring at the strange contraption they have just installed. It looks like a child-sized western saddle, with a large bulb where the horn should be and a vacuum-cleaner tube coming out where the pony's belly should be. A smaller hose runs to the wall along with the other one, and there is a long teardrop shaped hole right in the middle of the saddle. After gazing at the strange machine, Sharon asks the logical question, "So? Does it work?"
"We were waiting for you, before we test it." Sasha replies. "We have decided that since Karen is senior here, she may try it first."
"Thanks a lot!" There is more than a trace of irony in Karen's voice, but she moves toward the new toilet. There is no need to shift clothing, since she follows the habit of the women in being nude inside their quarters.
Connie begins to read slowly from the instruction book, allowing Karen time to complete one step of using the toilet before going on to the next. "First straddle the saddle, facing the large bulb. Now hook your knees under the lateral bars projecting from the sides. If necessary you may adjust their height."
It turns out that the bars are indeed at the wrong height for Karen's long legs, so Sharon pushes herself gently away from the hatchway to drift up beside Karen's leg. She finds it a simple matter to move the bar 3cm so that Karen's knees can grip them, and Sasha does the same on the other side. Connie resumes reading, "Apply sufficient pressure with the backs of your shins to assure a good seal, with both urethra and anus over the gap."
The other three women gaze in fascination as Karen wiggles her bum down firmly onto the saddle, and her heels come back to hold herself firmly.
Then Connie continues, "As you begin to urinate or defecate, pull out the large red knob in front of your right thigh, to open vacuum valve."
Karen does this, and the others can hear the flow of urine for some seconds until she asks, "So now what do I do?"
Connie reads, "When elimination is complete, activate bidet function by squeezing the bulb in front of you. Pushing the bulb forward will direct the spray to your vaginal area, while pulling it back will direct it to your anus."
Following instructions, Karen grips the bulb. "Oh! Oh that's good!" she screeches as she yanks the bulb back and forth. A look of total rapture comes over her face. She squeezes the rubber knob harder, as her eyes close and her mouth opens as if to scream in delight. But no sound comes out. Three other beautiful nude women look on in wonder. One doesn't get to be an astronaut unless one is in excellent physical condition, and these women all have the extra glow of being enthusiastic lesbian lovers.
Finally Karen's strong hands have completely flattened the rubber bulb, and the bidet stream trickles to a halt. Karen's eyes flutter open, and she lets out a huge sigh then breaks into a great big grin. She looks around at her friends, "Oh! You've all got to try this!"
"You're not done yet!" Connie hastily interjects. "Next, push the red knob back in. Then you will be able to pull out the white knob in front of your left thigh to allow air into the toilet chamber and break the vacuum seal."
"What vacuum seal?" Karen asks, wriggling experimentally on the saddle. "Oh, you mean the vacuum that's trying to suck the lips right out of my pussy!" And with that she follows the instructions to pull out the white knob. The resulting inflow of air blow-dries her nether-lips, slightly tickling them and stimulating her clit all over again. As the pressure inside and outside the toilet equalizes, Karen finds that she is again able to move off the saddle.
"Don't forget to push the white knob back in, and that's the end of the procedure." Connie finishes reading from the manual.
Sharon stares at the soft red curls that are revealed as Karen drifts away from the first test of the space toilet. "Let's find out how good a job that bidet function does." she says, and gently propels herself toward the senior astronaut. Sharon's movements in the weightless environment of the space station are not only quicker than anyone else's, but somehow more graceful. Effortlessly her face glides between Karen's thighs, her tongue extended to make first contact with the pouting pussy lips of her lover. Slowly it slides through the soft seductive folds, seeking any scent or taste that the use of the toilet might have left behind.
But all Sharon finds is sweetness, and the pink purity of newly inspired lust. "Yes! Do me! I'm so ready!" Karen urges, and willingly Sharon grabs the other's ass to pull her pussy against her mouth. Swiftly, what began as an on-site test of engineering effectiveness became a lesbian lust-fest. Sharon licked and slurped from Karen's anus and perineum, exploring the succulent folds of her pussy as she made her way to the beckoning enlarged clitoris. As Sharon's tongue made contact with the base of Karen's clit and began to climb slowly and luxuriantly toward the peak, Karen arrived at her own climax as well.
Fuck fluid flowed over Sharon's face, and following an unwritten rule not to let liquids float free through the space station, Sharon sucked frantically to be sure she left no droplet uncaught.
Sasha and Connie stare at their two co-workers in unabashed desire, then Connie turns toward the lovely cosmonaut and says, "You are the next most senior. It is your turn to try the toilet next."