Cube's script has her offer him *everything* and he can't resist!

For the first 30 minutes the room was ominously silent and still. Cube could occasionally be seen smirking playfully and letting her eyes flick back to Yuta, then glancing back at her two-page set of instructions. Yuta didn't know what to make of it at first. Every time he started to fidget or shift restlessly in his seat, Dr. Matsuda, stiffening up, would transfix the athletic youth with a gaze that seemed to be daring him to stretch just one inch too far.

The effect was wordlessly intimidating Yuta into trying to stay stock still. That was, after all, what the **** was supposed to be helping him, do, right? Just sit there patiently? Yuta bit his lip. Out of the many endeavors that he considered himself a champion of, sitting patiently was emphatically not among them. Staying seated on a couch for 3 solid hours (so unhealthy!) was a challenging task at the best of times... and now, he had to do it with no possible stimulation in the room except the people.

Ah, the people. Yasuke Matsuda was SO damnably handsome that just looking at him gave him a flushed feeling of jealousy. Yuta knew on some level he had no right to complain about lack of ability to get girl's attention, what with him having seduced his chemistry teacher on top of the 3 girlfriends he'd had just this year... but when it came right down to it with a truly gorgeous girl like, say, Mew, or Gum, or Piranha... he still had to pay for it.

And Cube fell into that category too. She seemed to be so occupied staring at Yasuke and making eyes at him that Yuta could eye-hump her to his heart's content. But he found himself wishing she hadn't worn such a tight little black top, or that she'd at least worn a bra. Having to sit here and just look was ****.

Little did he know, it was just beginning.

At the 40 minute mark, Cube yawned and read through the script one more time. Her tanned complexion didn't betray any hint of a blush or embarrassment as she stood up and began undoing her belt buckle, followed by the button on her pants. Yuta did a double take that drew a hard look from Dr. Matsuda but he couldn't just let that pass.

"Whoah! Um, Miss Cube...? Is this part of...?" While he was looking at Cube slowly, sensually pulling down her zipper and kicking off her tennis shoes, he didn't notice Yasuke casually leaning over and flicking the camera on.

"Mr. Asah..., uhh, I have determined, with a..." Cube's black-painted lips curled up and she started snickering, shaking her head. "I'm sorry, Doc - this isn't my first time being in this kind of film, which I'm guessing is why you went out of your way to track down my unlisted phone 'deets' and send me this offer - but I can't read this dialogue you wrote without laughing... Ahh, uh, here we go. Mr. Whatever. Mr. Cute Sporty Boy. The advanced screening and observation, uh, protocols here have told me that you and me are 91% physically compatible. Which is, like, over 40% more deviant than usual."

"40% higher than the standard deviation, you bimbo-in-tomboy's-clothes." Yasuke snorted and folded his arms. Yuta, staring at Cube's smooth, shapely thighs and tight black checkerboard-pattern thong, didn't seem to notice much.

"So..." Cube said as she turned around to give him a good look at her tight, athletic backside, waggling from side to side before peeling her thong down a few inches at a time, revealing the pink crease running across her smooth, hairless pubic mound, eventually stepping out of it leaving her in just her socks and her black top with its **** economy of fabric. She was silent for a minute as she slithered both her hands down her body, turning to face him again, before resting her hands on her hips. "Because obviously the Ultimate Neurologist can't be wrong I'm going to put all my confidence in that and go ahead and tell you you have my complete, unreserved permission..." she put two fingers her her mouth and sucked noisily, then took that hand and gave her hip a couple of sharp slaps, "do absolutely anything you'd like me to. You can even keep sitting and relaxing while I give you the most amazing blowjob of your life, touch me anywhere.... though one or two things, I might need some prep time and supplies for." she added, sticking out the tip of her tongue.

Perhaps because his throat was suddenly feeling so dry, Yuta was speechless. "D-doctor..." he croaked. "I don't think your medicine is working. I really do remember what you said... and I'm not dumb! I'm not!" he raised his voice as if it had been Aoi sitting in front of him at the desk instead. "But I don't think I can just sit here... my mouth so so dry I feel like it's gonna crack any second!"

"Dry mouth, possible side effect. Sudden engorgement of the sex organs, likewise." A pen scratched in the Ultimate Neurologist's hand. "There's plenty of water on the table, Yuta." he added with a sneer.

"Ooooh I'm thirsty too." Cube began squeezing her perky breasts together with both hands, running her tongue over her lips. "I really want to suck your cock and taste your... y'know." she giggled again, looking back at the script on the table and shaking her head but not seeming particularly displeased by the actions called for. "But you have to move over to the other side of the couch, where I was sitting. Doctor's rules."

Yuta's fingers clutched at the chair as if he was hanging upside down off the edge of a skyscraper. But Cube was merciless - after doing an erotic dance in front of him she turned around and shook her backside tantalizingly close to Yuta's lap, brushing her bare skin against his knee just enough to fry the last brain cells working in his mind, willpower **** or no ****. He sprung up with the soles of his feet and was over in the other side of the wide pleather couch in a lightning-fast blink of an eye. His hand struck like a serpent at his waistband and left his shorts fluttering to the floor, digging his rock-hard cock out of his briefs and starting to squeeze it with a frantically tight grip.

Yasuke sighed and rested his elbow on the desk, propping his head up. "Stupid jock. And stupid me... well, perhaps the formula is active, but just not concentrated enough. Miss Cube? Go ahead with what you said - do your business. If the formula's a total failure I can at least toss this in the 'plan B research expenses recouping' pile."

Cube wiggled onto Yuta's lap and put a kiss on his cheek. Yuta brushed his hand through her jet-black pixie cut and panted with lust. The girl leaned forward and whispered in his ear: "Hey, you're playing this really cutely... they told me that this was your first time doing something like this? Ahh... don't worry, I've only done 'amateur' stuff up until now and it's easier for guys. Just make sure you don't cum too quickly and let me know anytime that you're getting close so I can back off. Gotta make a good show, right?"

About the only part of that which made it through Yuta's foggy state of mind was the part about cumming which confirmed to him that this wasn't all a joke or trick and he really was going to get what this sizzlingly sexual young woman was promising him. Her earlier casual, friendly and understated attitude had morphed into an un-self-conscious solicitousness that made him ache for her touch all the way into his bones.

Cube slipped down off his lap, sliding his groin all the way up against her chest before settling down onto her knees in front of him. She bent forward and ran her tongue up and down along the length of his shaft.

Although left to his own devices, Yuta had normally liked to take it a bit slower and explore his partner's curves with his hands at a gradual pace with lots of kissing, Yuta found himself overflowing with excitement with this new kind of woman he was fortunate enough to meet up with, quickly proceeding right to the lewdest acts. He let out a shamefully loud moan as he discovered in the best possible way that Cube had a tongue stud, feeling the hard nub teasing up under the head of his manhood and running all the way down the shaft. Despite his... aggressiveness... Gum was only the second girl to ever give him oral sex (more often, the eager-to-please boy had been on the giving end) and it was with considerable delight that Yuta discovered Cube was even better at it... every time he started to focus and change his train of thought to resist, she changed techniques.

"AHH! Unnhhh... C-Cube... you're so good, I can't take any more of that, I'm about to...!" When Cube suddenly pulled off his rod with a loud pop, leaving a ring of black lipstick halfway down his erect pole, he was a bit disappointed. Her mouth now unencumbered, she gave a very theatrical, exaggerated slutty moan as she moved up to take his straining shaft up underneath her strapless top, squeezing the head between her breasts and slowly moving up and down.

Dr. Matsuda cleared his throat. "Hmph. Well, to test it a bit further... Mr. Asahina, we'll make this a continuum. So long as you don't move any further and return to your seat before going any further with Cube than you already have, I'll keep the deduction to your payout a minor one. And IF," he added with a snort and a contemptuous roll of his eyes, "you're too much of a fucking sheep ruled by his hormones to avoid actually engaging in..." even the stoic young man was starting to blush at this point, "...intercourse with this sprightly, accommodating sexpot, then as long as you stop and put it back in your pants before having an orgasm, your losses will be halved. As soon as the 3 hour limit is up you can go right back at her, assuming she's still willing, or go jack yourself off or whatever you want. More than fair, I'd say, and also much more than your lizard-brain would normally be able to process."

Yuta's particular method of showing his understanding was to do the exact opposite, springing up this feet and hurling his jacket so hard across the room that Yasuke had to duck to the side. "Hey! You almost hit the camera, dipshit!" Yuta was already moving towards Cube. He wrapped his arms around her waist, manhood rubbing up against her taut, muscular abdomen and leaned forward. Cube sighed. "Um... sheesh... normally I don't kiss on the mouth in this kind of thing but you c-mmmf!" she was cut off by Yuta cutely pressing his face against hers. Rather than an an aggressive tongue-kiss he just pushed his lips against hers. The next 5 minutes of sliding his eager hands all over her body helped him cool down, if only very slightly. When he opened his eyes he noticed that Cube had had her eyes closed and was responding passionately.

Taking hold of one of her hands he pulled her back down to the couch. Cube rested a hand on his chest. "Hold on... yeah, laying down is good, cutie. But gotta make sure the cam can get it all, y'know? Let me face away from you."

With her firm, experienced hands guiding him, Yuta was pushed down into a position on his knees. Cube leaned over again to push her ass and labia right up next to his face. Yuta moved in to lick and made contact, discovering she was already quite wet and her light brown pussy lips were crinkled and peeking out with anticipation. But after only a few seconds Cube pulled away and instead settled down onto the couch in front of him, lying on her side.

Doing an acrobatic stretch, Cube hiked one of her legs up and rested it on Yuta's shoulder, letting his rod rub up against her silky thigh. That was it - he couldn't bear it any more. Part of Yuta's mind, perhaps awakened by the pharmacological supplement after all, signaled that he should wait a moment... Even though things hadn't worked out ideally with Gum in spite of the buxom blonde's conscientiousness, Yuta had only met this cute young lady a couple of hours ago and since he'd already abandoned his seat, he should really see about getting a condom before going any further.

The (overdeveloped) part of his brain that existed to give justifications for doing what he wanted to do anyway countered that, well, she hadn't said anything about it, had she? The much, MUCH more overdeveloped part of his brain that functioned to drown out everything else with "SEX SEX SEX SEX SEX" made it redundant. With a drawn out grunt of ecstasy, Yuta thrust his hips forward, so overeager that he missed his target and made his manhood slide up along Cube's inner thigh, causing her to give a sharp cry of pleasant surprise followed by another high-pitched giggle. He wrapped both of his arms around her raised leg, hugging her thigh desperately tight as he bucked back and forth, sliding along her tender places until at last his turgid cock-head managed to bury itself in her pussy and spread her open.

Yuta was in so much pleasure he felt like he might cry, or perhaps die, as he felt his hard sausage slide home all the way in her tight, velvety passage. "Doctor Matsuda!" he shouted. "I think... I think that your matching numbers and math and stuff were completely correct! My hips are moving on their own like a magnet! I'm so compatible with her that she's fitting me tighter than a glove! It's the tightest I've ever..." he trailed off into an inarticulate groan.

Even a naive, horny boy like Yuta who didn't watch porn knew that the loud, sharp cries and gasps slipping from between Cube's lips were being really exaggerated, as if she wanted everyone in the building to hear. "AHHH! Ohhh yes, uhhh, whateveryourname was, your cock is soooo big! You're stuffing me so full, ahhhhhh, ooooh, it's so hard that I'm gonna cum, I'm gonna cum soon!!" she shrieked with a warbling, up-and-down tone in time with Yuta's ever-increasing tempo of thrusts.

Turning his face to the side so that he could plant a kiss on her wriggling lower leg, Yuta felt the familiar tightness in his tummy and abdomen that foretold losing control completely starting to build. Every thought of the other achingly erotic women he'd lusted after (and consummated said lust upon) the last week or two emptied out of his mind - the only thing in the universe he was aware of was Cube's tight, firm ass cheeks bouncing against his hips each time he buried himself in her, and the soft, slick ridges of her cunt gripping him each time he pulled back out of her. The small tight room was filled with the sounds of her skin slapping against him.

Throughout all of it Dr. Matsuda was a stark contrast, looking almost entirely calm and composed. 10 minutes of lust-mad fondling, sucking and humping by the attractive young couple in front of him and he was looking almost bored. "Note that Mr. Asahina is clearly not responding to the treatment... I would claim 'invincible ignorance', but that would be making excuses, which a goddamn genius like me should never stoop to. It's looking like we might not make it to the end of the trial period if he can't restrain his orgasmic response."

That seemed to get Cube's attention, and she tightened around Yuta even as he backed out of her greedy pussy, nearly making him lose it right then and there. "Ahhhhh oh yes. oh yes, make me cum! I want to make you cum too, dude! Please, let me drink your hot thick cum! I'll swallow every drop!"

Yuta didn't want this pleasure to end and leaned back, letting his wet, throbbing cock flop out and drag against Cube's toned thigh. "Ohh... unfff... I'm sorry, I wanted to help you feel good Cube, but I was about to..." it seemed that the effort of restraining himself was wearing him down more than usual, and the boy who could normally run a 5K without being more than a little winded was panting and out of breath.

"Ohhh yes I want to keep feeling your rock hard cock until it makes me cum. There's..." Cube shook her head and giggled again, looking at the camera and blowing it a kiss (Yuta got the feeling that being recorded like that made her even more excited than she'd otherwise be, like she was performing to please that little blinking electronic eye rather than him... not that Yuta was about to take offense to it). "...there's a 100% chance that I'm going to cum around your cock, stud! Gahahahaa... Mmm, I'll go easy on you and let you get back to where the experiment said you were supposed to be... sit down there so I can ride your cock hard until I cum. If you do, I promise I'll swallow every drop." She looked up and locked eyes with him, slithering her studded tongue lasciviously over her lips.

Yuta did as he was told, naturally. And as Cube's perfect ass hovered over him and he reached up to wrap his hands around her trim tummy, fingers criss-crossing over her sexy dragon tattoo as she spread her legs wide to give the camera and the stoic neurologist the best possible view, he suddenly felt... an odd sense of clarity. It was as if a wet blanket was draped over the flame of his lust. He remembered he came here for a job and he was about to lose out on tens of thousands of yen. All heh ad to do was somehow find the strength to tuck his dick back into his briefs and sit there... staring at Cube's hot half-naked body while she gyrated in front of him, and thinking about the feel of her tight pussy, and he'd make more money than he could in a month of honest labor. Was it the **** working after all?

"Miss Cube... um, actually..." he started to say in a soft voice, much less assertive than he'd been a minute ago. But her butt was already fatefully lowering towards his straining loins...