René's huge balls feel so fucking good in my mouth. I suck on them for pure enjoyment. And to distract him and maybe Liz from the probe insertions.
My sciencey responsibilities fulfilled, I let his yummy balls slide from my mouth and into my hand. Fuck! They're so fucking heavy! So full of cum! Still! They practically thrum in my palm.
I tug his balls gently and hear him moan as I slide my mouth up Liz's meaty cuntlips to suckle her hot, hard, throbbing clit.
"Fuck! Sarah," she gasps as I mouth her eager sex, "Oh! Fuck!
Yes!
.
Yeah, Sweetie
, I think, feeling her hot core throbbing under my tongue,
Cum for me, Baby! Cum for all of us! Cum for hot, sexy, baby-making, cum-gushing fucking science!
And then cum again for me later
, I add in a hopeful prayer. We've been working - and bunking - together for fifteen weeks already. Fifteen station weeks, that is, so 3000 standard hours. We've spent almost every one of those hours together, and I'd been wet as a trench sponge for her from the first minute.
As flustered and thrilled as I'd been in her presence, I'd feared for so long that it was just me; my lonely solo imfatuation. I'd only realized recently that she'd been feeling some of that sexual tension, too, though I still wasn't sure even now how she'd felt about it. Up until just now, she's dealt with it by clinging to procedures and the professional formalities.
And here I am now, finally tasting the sweet juices I've dreamed of for so long. The next few hours are going to be interesting, at very least. Fuck, she is so fucking delicious! I squeeze René's balls again and feel his low moan reverberate through them. He's getting close.
I suck one of Liz's meaty lips into my mouth and slather my tongue along its slick, hot, sweet inner margin. She gasps, then grunts, then grabs my head in both hands and pulls my mouth against her sex as she impales herself on René's incredible cock.
I feel René's balls and cock convulse as his climax hits. Liz cries out as she feels his ejaculate flood her. Almost instantly, it begins to ooze out around the margins where his thick cock stretches her tight pussy. Hot semen drips onto my bare chest and I lick my mouth around Liz's engorged clit and work it good.
"Fuck! Sarah! We're!... Oh! I fucking love!... Fucking sciiiiience!
Yes! Yes!
Yeeeeessss!
I suck in her clit and frig the fuck out of it furiously as she climaxes long and hard, shuddering against my mouth, quivering around René's cum-pumping cock, and shivering through her whole body; legs, thighs, tummy, torso all clenching and shaking as her orgasm rips through her in waves.
This is how she cums with a cock in her, then
, I think as I suck on her hot juices and René's overflowing semen.
I can't wait to explore the rest of her pleasure ranges. For science, of course.
Liz collapses, dragging her humming cunt from my mouth and from his cock. She huddles on her knees and forearms, forehead pressed to the deck. She's still shuddering.
René is still ejaculating. Pulses of (I estimate) 10 cc's, jetting along at about five meters per second. In the low station gravity, that means they make it all the way to the far wall, threatening some of our more delicate electronics. I quickly interpose my body and am just as quickly covered in hot cum before I can take hold of his dick an bend my mouth down around it.
His delicious, thick cum gushes down my throat. He fills my mouth faster than I can swallow and soon a river of overflow washes warmly over my chin and down my throat.
I feel Liz slide beside me and gently tug his cock from my mouth, angling it to splash cum on her tits and face before sucking it into her mouth. She sucks long and hard, swallowing every bit. He must be waning, I think, or else she's a sector-class champion cum guzzler.
I savor my mouthful of his cum, sloshing it around delightfully with my tongue. At last, Liz pulls him from her mouth and he's merely oozing, softening ever so slightly.
Liz grips the back of my neck and pulls us together in a tongue-thrashing, cum-churning kiss that goes blissfully on and on. I'm on fire and vibrating all through my core.
She pulls away finally. I'm so fucking wet! Damn, I need to cum so bad! One hand on my thigh, I'm on the edge of just finger-fucking myself in front of her and she leans back in, her nose a bare two centimeters from mine and husks, "Priorities: One, clean up; two, tons of fucking science; and then three..."
She trails off, staring right into my molten core with her piercing gaze. "Three," I echo, hope and anticipation humming in me.
"You and I
really need to talk!
She winks at me, plants a quick kiss in my lips and gets up.
By the time I get to my feet, tummy buzzing and head spinning and all, Liz has summoned a transporter.
We set to cleaning up René for delivery back to his quarters. Liz deftly removes the monitors and electrodes and some more invasive equipment while I sponge him off. I leave his cock and balls for last. He's mostly stopped oozing but there's a bit of a dribble fluttering out of his urethra and his package is covered in layers of cooled and cooling semen.
I bend and take his still semi-erect cock into my mouth and start to suck and lick him clean. His cock jerks and squirts a blob if cum in my mouth. I stand up and open wide to show Liz the new load in my mouth.
Without missing a beat in her post-trial routine, she hands me a specimen jar and says, "Get us some free catch of that for comparison."
I take the jar and pop the top. I bob my mouth vigorously on René's cock three times. His flow starts again and I pul my mouth away, put his cockhead in the catch cup, and stroke his saliva-and-semen-slick shaft at a medium pace with my hand.
He fills the cup up rapidly. I drop his prick and cap the cup just as the lab doos slide open to admit a transport bot. Damn! I guess I'm going to have to sponge off his balls now instead of cleaning them the way I'd planned.
"Just a moment, Bud" Liz says, bringing it to a halt.
"You have them names, now?"
She giggles, "Sure. It's cute." It is. We share a smile and Liz gives me a conspiratorial wink that would have spoken volumes to an AI monitor, if any such thing were allowed within the lab domains.
We finish cleaning the subject up. Somehow I automatically think of him that way in company, even if it's only a droid. After Liz finishes the last of her post, she leans over him and asks, "How are you feeling? Do you need anything?"
"I'm feeling just wonderful," he says, grinning at us both in turn. "I need a bath, a rare steak, some good wine, and a nap."
Liz turns to the droud. "Bud, this subject has been most useful and cooperative. Please see to any requests within the parameters he just gave and contact me for anything he may ask for in addition."
