Once they were both standing, Rille directed her prisoner to sit on the ground with his legs straight out in front of him.
"Why?" he complained.
Glaring, she offered a terse explanation, "Just sit on the fucking ground and you'll find out."
Kaesso briefly contemplated disobeying the order just for the hell of it. After all, what was the worst she could do? Starve him?
Unfortunately he also wanted to find out what creative experiment she had in mind. It was sick, really. He'd literally been turned into a sex toy.
And worse, the turian was enjoying it.
Grumbling incoherently, he did as instructed, plopping on the ground like a pouting fledgling before peering up at his new mistress. "Happy?" he sulked, arms folded in silent rebellion.
His penis now stood as tall as his head, even at an angle. If he had to guess, Kaesso would say it was approximately a meter and a half long at this point, perhaps slightly more. Begrudgingly, he watched the woman visually feast on the sight of it: the soft tissue was colored the same ashy gray as his leathery skin, broken by parallel ivory lines, indicating the raised ridges that ran like rifling down the entire length from tapered tip to broad base. At some point he had been taught about his own race's anatomy, how it all managed to fit inside his body, but it wasn't something he cared to remember—all that really mattered was that it worked properly.
Then Rille stepped forward, her feet resting on either side of his legs, bending to trail the fingers of both hands from his crotch all the way to the end of his cock.
The sensation was unexpected, and the man lifted his talons to grasp the alien ankles before him, to ground himself.
And a good thing he did because, just as she reached the pinnacle, her touch turned tight, her hands encircling his girth and pressing down toward his body.
Shuddering, the elongated organ shifted backward, zealously following the human's silent bidding.
The sensation was enough to make his eyes roll backward.
She repeated the motion, lightly tracing the macroscopic cliffs up to the peak, firmly pressing his penis farther into him, over and over, until Rille was satisfied with his progress.
Kaesso was breathing more heavily than he would have guessed by the end of it, releasing the human's ankles.
Without warning, she sat on him, sheathing him to the hilt, enclosed in the warm tautness of her body, so unlike his own internal housing. Legs bent at the knees, the woman gripped his shoulders. Their faces were nearly level and neither had to look down or up to meet the other's eyes.
"My turn," she said simply before releasing her fingers and falling away from him, toward the ground until she rested on his outstretched legs.
They gasped in unison, her back arching as his hips lurched.
Whatever this was, surely it was too sinful to be heaven yet too glorious to be hell.
When she sat up, the pressure lessened, though the rigidity of her pussy remained largely the same. Kaesso grasped her hips, unable to control the woman's movements but needing something to hold onto besides his mental strength.
This might very well be the death of him.
Rille maintained a slow rhythm, falling and rising in time with some unheard melody. Each time she lay down, the turian's grip on her hips and ass constricted. He could feel the press of her inner muscles, spongey and stimulating, rubbing against the ridges of his dick.
The women he'd fucked before were like armor that had been exposed to an acidic environment just a little too long, wearable but loose in a few places.
This woman, on the other hand, fucked him like he was the only oxygen mask available.
It left him breathless.
Every motion increased his pleasure. Kaesso could feel the ecstasy climbing, slowly but surely.
Until she lifted her legs from their position planted on the floor to lean them against his chest and shoulders, like she was holding on to his head with her calves.
If before he'd thought he was her air supply, now he was drowning in an ocean of her.
Her vagina narrowed, enclosing his cock in a firmer space, engulfing all feeling with the wet heat of her inner body. The gratifying sensation of their pairing turned jagged all at once and his breathing became more ragged.
Groaning aloud, both creatures raced toward completion, working together yet separate.
Almost imperceptibly, at the bottom of a sit-up Rille ground her hips against the turian. The motion was minute, but enough to give him a brilliant idea. Determined not to be a plaything, Kaesso held onto her ass with purpose, rocking her body from side to side intermittently, noting how his own pleasure ratcheted differently on either side. Then he lifted her slightly, her weight unnoticeable, and the uppermost pressure decreased.
When he lowered her once more, it returned sixfold.
He lifted her once more, quickly raising her from his legs then dropping her gently. She moaned in response, stuttering over the noise as her climax was sealed. The muscles of her vagina grew taut, milking his shaft for all he was worth.
But the tremors subsided before he could find his own completion.
Rille stopped moving, spent.
Her partner was less than pleased.
"Satisfied?" he asked angrily, shoving one of her breasts in frustration. He was reward with a peppy bobble. The turian simply scowled at the human's body, taunting him.
"Ugh, yes," she murmured. "But no, not quite." Taking a deep breath, she continued, "We're not done yet today."
"With sex or with exercise?" the man clarified with more than a little grumble.
Snorting, she answered, "Well, both, obviously. Or have you not caught on yet?" She smirked lazily at him from her prone position, his waiting dick still throbbing, erect inside of her.
Honestly, the nerve of this woman.
She continued, either oblivious to his displeasure or ignoring it. "One more for today, and then we'll go again tomorrow." Gingerly, she sat up one more and scooted backward until his penis was freed from her vaginal clutches. As Rille turned to stand, she presented her ass right in front of his face.
He nearly bit her.
But that would probably earn him some form of punishment that would not be nearly as enjoyable. So the turian leased the urge. For now.
When she gestured for him to stand as well, he did so, growling to himself about the injustice of their intercourse thus far.
Three times and still no completion for him.
Vaguely, through the haze of sexual frustration, Kaesso heard her tell him to take a lunge position. He did so, glaring daggers at the woman.
Who didn't seem to care at all about his lethal stare. She simply approached his stance, caressed his cock twice, then climbed aboard once more. Rille wrapped her legs around him, locking her ankles together as she did the same with her hands behind his head.
Again they were face to face, her eyes misty with erotic bliss, his own clouded with determination and sex appeal.
His was the most attractive expression the human could imagine right then.
Without additional direction, he began to move, stepping forward with one leg until his knee bent to 90 degrees, and then stepping back to plant both feet next to each other, just before repeating the motion with the other leg.
Rille's back arched, pressing her chest toward him, sliding up his shaft with each step, then impaled again when he returned to a resting position.
As irate as he was, the man was determined to prove his ability to learn, to grasp new concepts.
To grasp her.
Quick as a viper, Kaesso palmed both of her breasts, his talons not quite long enough to hold all of them at once. He massaged her body as she had done earlier, forcing the tissue up and down and right and left. With each pass he pressed her nipples between his two long fingers, his thumbs kneading the inner edges of her skin.
She was quick to moan, even louder than before.
The sound tore at his auditory nerves, eliciting a resounding roar of his own.
His head crest was soon being rubbed between her own fingers, meeting each of his own caresses with her own. Several times, and likely inadvertently, she scratched his scalp just beneath with her dull nails.
This fueled his own release, nearer now than he'd been the past three times.
It seemed if he gave her pleasure, then she would reciprocate.
Good.
Kaesso dragged one hand away from her chest until he had wedged it between their bodies, her pelvis slamming into his with each lunge. Digging the pad of his thumb into her, he worked what he hoped was that spot she kept returning to, the one that made her nearly scream.
She nearly screamed.
And he grinned like the spirit of adultery.
Immediately the man felt her muscles clench around him, rolling and writhing against his hardened dick, seemingly seeking to suck him dry.
Though it took longer than the previous iterations, Rille almost collapsed against him, her body spent from her own orgasm—the fourth in less than a few hours.
And then she patted his shoulder, signaling he had completed the required exercises, and made to dismount.
His talons gripped her ass, digging into the tender flesh.
Eyes flashing to his, he thought he could detect a sliver of fear.
But as quick as it had appeared, it was gone, replaced by anger.
"Not until I come," he breathed, continuing to work her body up and down his cock.
Her gaze blazed into him, her inner fire evidence of her character, and somehow it made him want her all the more.
And then she purred.
"Can I help?"
Throwing back his head, the turian speared into her once more. Spirits, the woman was intoxicating—in voice and in deed.
And in thought, it seemed.
"Turian erogenous zones," he huffed, thrusting between each word.
"Waistline."
Thrust.
"Hip peaks."
Thrust.
"Head crest."
Thrust.
"Skull just beneath."
Extra hard thrust.
"And dips…"
Again.
"Between plates."
Thrust.
The woman was quick to respond, even eager, if Kaesso didn't know any better.
Surely she was just trying to get him off as quickly as possible so that she could get off of him—literally.
But then she was licking the edge of his cowl, down his chest and around the other edge, and he couldn't see, he couldn't think.
All he could do was grip and grunt and plunge.
He could feel her nails, razing each of his plumes, scratching his scalp.
He could tell she squeezed his midsection each time her legs met his waist.
When he opened his eyes briefly, the human's skin was flushed red, her breasts bouncing with each lunge, her thighs slapping against his tough exterior.
But her face.
She was lust personified.
The realization hit him full force, that his captor, his enemy, his lover, was enjoying herself, enjoying him.
And Kaesso was spiraling, his seed spurting into her sexual cavity, his teeth snapping next to her ear, his talons drawing blood from her cheeks as he pressed her against him as hard as he could.
The sensation spiked when her inner muscles clenched him tighter.
Her expression indicated she knew exactly what she was doing.
It made him want to fuck her again in gratitude.
She could have four orgasms if it meant he could have this one every time.
As his blood began to recede from a boil, his heart flying faster than normal, the turian grinned ferociously at his partner. "Fuck," he drew out the word, "that was amazing."
"I know I am," Rille replied, tossing her curly locks over her shoulder, demonstrating her phenomenal level of humility. "Now, let me down. I really have to go." She pressed against his shoulders to lift herself off his sword.
But stopped.
Her face shifted into a mix of wonder and confusion. "I thought it felt…" she began, trailing off.
"You thought what?" he asked, watching her closely, still coming off his own high.
Rille's head tilted, looking at him like she was a drill inspector. "Did you dick enlarge inside of me when you came?"
"Oh that?" he asked, chuckling softly. "Yeah, it's called a climactic bulb. You know, holds all the sperm needed for an ejaculation."
She was silent for longer than he'd expected. "Is something wrong?" Kaesso murmured, suddenly unsure again.
The woman was still seated at his hips, impaled on his penis.
"That's not how it works for us," she breathed, looking down between them where their bodies were still joined. "How long does it last?" Rille finally asked, her eyes darting back to his.
"Oh," he stuttered, feeling very fazed by this discovery. "Uh, not long, I think. I'm not sure though. Never timed it."
Her eyes widened and he could see more of the white surrounding her emerald irises. "Well, fuck," she exhaled, leaning away from him to get a better view.
The shift in position made his hormones kickstart. Kaesso hissed, fighting the impulse.
"What's wrong?" she asked, too observant not to catch the small noise. Of course.
He shook his head before answering. "Just, that felt a little too good," he answered, voice stilted. Already he could feel his body preparing for another round.
"Actually, I can feel it loosening," the human said to herself, not looking at him. "I wonder…"
Again, she moved, grinding her hips against him as she clung to his shoulders.
Again, he hissed, louder than before.
"Oh, yes," she hummed, gazing up at him through the wild hair falling across her face. Rille ground herself against his pelvis, circling his dick, her muscles tightening and loosening in time with each pass, his body growling for more and more and more.
Until she lifted her body away from his and the man's cock came free.
Not even stumbling, she stood before him, completely at ease even as his blood began to race again, raring to consume this impulsive temptress.
And then she was walking past him, grabbing her clothing scattered around the bed and back toward the entryway.
"Wait," he whirled to call after her.
When she turned around, Rille saw the naked turian, whom she'd captured almost by accident, trying to formulate a sentence. She lifted one sardonic brow, still in the nude herself, and asked, "Yes?"
He frowned slightly then enquired, "What am I supposed to do whenever you're not here? There's nothing but an old bedframe and what looks to be an even older chest of drawers."
"You're a man," the human shrugged. "Surely you can find some way to entertain yourself." Then she turned and began to walk through the opened cargo bay door, her outfit in her arms.
Calling over her shoulder without looking at him, she amended, "Perhaps I could bring you some unlabeled audio files to notate. It's a chore that needs doing, and you never know what you might hear that rouses your interests."
Rille knew she would certainly think about some of the sounds she'd heard—and made—during that session of experiments, sounds which she found particularly arousing.