Chapter 7 - The longest stay

by MadGenuis

Somehow, "I told you so" just did not seem to quite express what Keith felt these days. Bluntly put, the last few days since the last 'test' - the one where Emma had been in charge and had brazenly revealed and involved their little brother in the 'test' - had been torture.

On that fateful day, things had seemed to Keith as though they ended up finding a way of all working out for the better, and he had actually walked away from the distressing 'test' with hope and a feeling of success in his heart - after all, with Emma's promise that she would "make it up to him" for having involved Mike in all of this, the future had looked far from bleak. As soon as Keith had recovered enough from the 'test' to start feeling horny again, he had begun wondering just how Emma intended to "make it up to him". Needless to say, he immediately decided to try to arrange another 'test' at their earliest convenience.

If only it had really been that simple...

Really, what had they been thinking, involving Mike in their relationship? As Keith had told Emma once before, Mike could not keep a secret for the life of him, and apparently he took being initiated into their 'tests' to mean that he had power over them - which he had. Later the very same day of the 'test', Keith had to stop their eight-year-old brother when he rather indelicately insinuated what he and Emma had been doing upstairs while all three of them had been up there. It was only out of luck that their parents did not take the youngest sibling seriously, or perhaps somehow managed not to understand what the boy was implying... probably because the real situation was so improbable that it did not even register with them as a possibility.

But even if Mike - though not because of lack of trying - did not reveal his siblings' dubious activities to their parents right away, he had still proven beyond a shadow of doubt just how unreliable he was, and how much of a risk he posed as a person knowing their secret. There was no helping it: Mike quite simply wanted to share everything he experienced with everyone else. It was his nature. It was a nature which threatened to demolish Keith and Emma's lives and futures, and by extension probably Mike's as well, but it was his nature all the same.

So while it was an annoying and potentially world-shattering trait, Keith could not really blame his little brother for that particular flaw. Mike's obsessive need to interfere in his older siblings' affairs, on the other hand... that pissed Keith off more than anything.

Indeed in the days following that 'test' which allowed their little brother to peek into their secret little world, Keith was brought to the brink of the berserker rage his classmates found so amusing far too many times for it to be healthy. The day after the 'test', Keith had managed to convince Emma for another one already, and they had managed to sneak off to Keith's room... only for Mike to follow them there and then refuse to leave. The day after that they tried again, but with same result - and later that same day, Mike prevented yet another 'test' from happening. The eight-year-old quite simply refused to allow his older siblings to be alone together after having found out about them, effectively making it impossible for the two of them to have any more 'tests' without him being right there.

At one point Keith's patience was almost spent, and he threatened Mike with a thorough beating if he did not leave them alone. Now, Keith was far from intimidating with his scrawny frame and, as has already come up in the story, did not have much in the way of physical strength or endurance - but regardless he was still five years older than his little brother and significantly bigger and stronger than him. Up until then, Keith had always been able to subjugate the child either through threats or a contest of physical prowess.

This time, however, Mike neither backed down nor accepted the challenge - he did something much, much worse. Mike spoke a seething threat of his own: that if Keith did that, he would tell their parents. Predictably, that shut the oldest sibling up immediately, and Mike proceeded to seize the moment and demand that from then on, they would not have any 'tests' without telling him... or he would betray their secret.

So after a life of being the dominant sibling, Keith now found himself irrevocably at Mike's mercy. By including the little boy in their secret, Emma and Keith had given him a weapon to use against them of inconceivable power, one that practically reduced the older siblings to his thralls. When they played, Mike was in charge and got the toys he favored, or he would tell on them. When they were eating, Mike got what he wanted from his siblings' servings, or he would tell on them. When chores were being done, they did his, or he would tell on them. It was a nightmare that Keith could not wake up from, and within the first week of this, even the seemingly eternally outwardly calm Emma was starting to show her annoyance.

But even as the two older siblings were furious with Mike, the fact remained that there was nothing either of them could do about it. They could curse and swear and complain to each other, but in the end the threat of discovery still loomed above their heads as the most severe danger they had ever faced.

And on top of their disgraceful enslavement, having 'tests' remained impossible. Halfway through the second week, Emma's resentment towards Mike's insistence on his involvement grew even fiercer than Keith's, and even though Keith was getting so desperately horny that he was willing to ignore Mike's spectatorship just to achieve satisfaction - he had done so before, after all - Emma blankly refused to do anything of the sort if Mike even as much as knew it was happening.

Mike never left them alone - he even refused to leave the house as long as both his siblings were home, so that he could stay and stalk them like a hound. 'Tests' were out of the question.

The evening before Keith's sexual hiatus would reach the fortnight milestone, the young teenager found himself lying in his bed with his arms behind his head, staring into the very same ceiling that he had beheld at the beginning of this adventure. His bedlight was still turned on, though, and shadows played in the fissures between the ceiling planks. He was wearing only a pair of white boxer briefs since he had officially gone to bed to sleep already, even though he did not feel ready to sleep yet. He was too horny to sleep properly, and he was too angry to be properly horny. Before long, he knew, he would also end up being too sleepy to be properly angry, completing the painful circle of his torment. And with each passing day, he would only grow sleepier, angrier and hornier, because the shadow Mike had cast over Keith's life would not even relent enough to let Keith satisfy his own needs. He could not vent his anger towards Mike without risking discovery, and he could not seem to successfully masturbate because he was so angry... it was another vicious circle. He had to figure out how to escape these multiplying inescapable conditions or he would end up going mad - or worse, Mike could actually tell on them. He had to find a way...

"Whatcha doing?"

Keith felt a knot tighten in his chest even as he experienced a kind of surreal d�j� vu - a sensation that only seemed to grow more intense as he with what felt like agonizing slowness moved his head to peek down and look at Emma. The way he was lying there, part despairing and part angry... the way she had so innocently and childishly spoken those very same two words as that day months ago... even her loose beige pajamas pants and T-shirt were the same as that day. Her hair now was a bit ruffled, which he guessed must have been because she had just gotten out of bed, and she seemed a bit drowsy, but otherwise everything about the situation had a dizzying semblance to when he and Emma had had their first 'test'.

For long seconds Keith just stared at her, dumbstruck by how unexpected and unreal her showing up here like this was. He wondered whether she perhaps she tried to recreate the circumstances of their first 'test' on purpose, but he soon found that there was no way to be sure of that. It was the very same set of clothes she had worn that day, but then again she did enjoy loose-fitting clothes, which was one of the reasons that it was not unusual for her to wear pajamas even in the middle of the day when she was home. Plus she had already gone to bed, so it would only be natural for her to be in her sleepwear, which he assumed could well describe her current outfit. And what she said... again, it could have been on purpose that she chose the exact same words and the exact same way of saying it, or it could be coincidence. After all, curiosity was an understandable reaction when she had noticed that her older brother still had his lights turned on this late in the evening and therefore probably was awake, too.

"Uh," Keith said, eloquent as ever, trying to analyze the situation and think of something to say at the same time. "Nothing, I guess..."

"You can't sleep either?" Such innocent concern her voice carried... Keith could not help to be both touched and excited. He ponderously shook his head. "It sucks, huh?" He nodded again, starting to feel stupid with his complete lack of words.

Emma rubbed those big adorable eyes of hers with her knuckles, then looked up at the boy again and offered a smile. "Hey... can I sleep with you tonight?"

Keith froze in body and mind alike, his heartbeat suddenly racing and his entire body, but especially his face, feeling incredibly hot. Again he wondered if she had chosen her words on purpose, or if she was even aware of the alternate meaning the phrase 'to sleep with someone' carried. Was she proposing a 'test' while Mike was sleeping, or was this really just an innocent request for a little sister to sleep in her older brother's bed with him for the night? So many questions and so few answers...

"Uh," he repeated his genius articulation from before. "I, uh... guess so?" He was absolutely clueless, and it scared him a bit. Not that it really mattered all that much which meaning Emma had intended the phrase to have, Keith was not going to turn her away, regardless of whether she wanted to sleep or have a 'test'.

Whatever her intent, both her smile and eyes widened with delight at receiving his permission, and Keith's stomach tightened in a knot at her gratitude as she eagerly clambered up the ladder to his bed.

"Oh?" she said once she was kneeling next to him in the bed, eyeing his almost completely naked form. "You sleep in your underwear?"

He furrowed his brow and nodded, not sure what she had expected. It seemed that she really just wanted to sleep there after all, seeing as she was apparently uncomfortable with his lack of clothes, and he was not entirely sure if he was touched by this, or disappointed.

But rather than seem uncomfortable or in any way dissuaded from staying, Emma smiled again and stuck out her tongue at Keith in a very childish grimace. "When in Rome, do as the Romans do," she said, and before her brother had actually managed to comprehend what she had meant, the girl was already taking off her trousers, revealing a pair of little white panties and her pale slender legs. Keith was not completely sure if he had had an erection before then, but that second there could be no doubt: he was so hard that it hurt a little.

Within him, the dark beast of lust roared impatiently, urging him to throw aside all restraint and just ravage her immediately, but unlike during their last 'test', Keith felt that he was in control of his dark side now, and chose to ignore it. This had a deeper and greater importance than simple carnal satisfaction. This was about a brother and a sister trusting each other completely, and he was not going to let his lust ruin this chance for him.

Emma went to remove her little pink ankle-socks, too, but Keith stopped her. "You don't have to," he told her gently. "You can keep them on." In fact, he wanted her to keep them on. He had not consciously realized it until just now, but he actually thought that girls wearing socks were kind of cute, maybe even a bit sexy. He did not know why, but there was just something about them... He was not into feet or anything - in fact he had a tendency of getting disgusted by them, finding most specimens of that particular appendage rather unflattering - and he knew from his porn that pantyhose and fishnets were a turnoff for him. But he liked girls with socks. And he found Emma wearing socks somewhat hot.

The girl just shrugged, thinking nothing of her brother's interruption and left her socks on. Instead she surprised Keith by unceremoniously pulling off her T-shirt, which allowed Keith's eyes to roam freely over her gloriously naked torso, taking in her every perfect slender feature. Illuminated by the dim bedlight he could even see each of her ribs defined even more plainly by dark shadows, and her little budding breasts were actually discernible to the naked eye for once. For some reason the fact that she was still wearing panties only made her seem all the sexier. He wanted to reach out and touch her, but resisted the urge. This is about more than carnal satisfaction, he reminded himself. But oh dear, she made him so very horny...

"Scoot over a bit," she urged him, crawling further into the bed on her hands and knees, smiling all the while, before she lied down next to Keith with her back to him and facing into the room. He felt her butt resting enticingly against his hip, and felt like he was going to start crying from sheer suppressed sex drive. She threw the duvet over the both of them, and silence ensued.

Keith tried closing his eyes and calm himself down, to banish thoughts of his almost naked little sister lying next to him, so close that she was actually touching him. If he got his erection to go away on its own and somehow managed to distract himself from sexual imaginings, he reasoned, maybe he could manage to fall asleep despite the situation and get through the night without violating Emma's trust in him.

In almost succeeded, too. His penis shrank down to its pitiful soft state, and his blood-pressure returned to something close to normal as he concentrated to empty his mind with all the dedication a teenager can amass in the time of utmost need. He actually started to feel a little drowsy, almost on the verge of falling asleep, when Emma moved a little next to him, as though in her sleep, and her buttocks consequently grinded up and down against his hip once more. Needless to say he was fully awake instantly, staring into the ceiling with an erection in his boxers and a silent curse on his lips.

Okay, that won't work, he thought to himself, a bit more bitterly than he was comfortable with. Usually, having his sister being close to him - and almost nude, on top of that - was a dream come true, but in a scenario when he was trying to sleep, being horny was not exactly optimal. It certainly made his objective significantly harder to obtain, if not downright impossible.

Trying to avoid letting out the exasperated sigh he felt was already waiting in his chest, Keith rolled onto his side so that his back was to Emma, and he was facing into the wall. This way he took up less room in the bed, meaning there was less chance that Emma would inadvertently touch him somehow, and it was just generally easier to pretend that she was not there. As he felt his erection gradually go down, he smiled to himself, confident in his success, that he could now finally defeat the dark monster inside of him that wanted to seize every opportunity to ravage his sister's pussy. Again he felt himself calming down, his thoughts retreating from the lustful chaos they had been progressively pushed towards, and sleep seemed obtainable once more.

Keith opened his eyes just a couple of minutes later, frowning as something immediately indeterminable seemed to chase away his sleepiness. After but a second, he realized that something was tickling his back, and as he looked over his shoulder he realized that her hair was brushing lightly over him. He tried moving it aside with one hand without disturbing Emma. He settled back down again and closed his eyes, but within five seconds he felt something hard against the back of his head, as his and Emma's heads were so close together that just moving them a little made them bump into each other or touch. He only had one pillow, after all.

Grumbling quietly to himself, Keith decided that it was better if he was facing her, after all, since that at least let him see where his sister was and arrange himself accordingly. It presented an immediate problem as he had a free view of Emma's unclothed backs, her shoulder blades and spine discernible under her skin, slender as she was, which nearly had his blood flowing hot again in and by itself. He reasoned that he could just close his eyes, though, and then that would be that. He could avoid getting excited again, and they could both sleep soundly through the whole night.

Or so he thought. For some reason, no matter how brilliant he thought his solutions were tonight, they just did not seem to work out properly. He had not even calmed down entirely after seeing his sister's naked back before he felt something which felt like, and a simple glance in the direction confirmed, was Emma's panty-clad ass being maneuvered backward so that it nestled against his stomach, just below the navel.

Now, na�ve as Keith had a tendency of being when he was not being paranoid, this seemed just a bit too elaborate to be a coincidence. Had it been just this, or just the other things - even if it had been something else now than Emma's posterior abruptly deciding to jut out and rub against his stomach, he might have written it all off as happenstance, but now his suspicions from when Emma addressed him first this evening were returning with renewed force.

Wondering how to check whether he was right or not, Keith stayed put for a moment, trying to think. Emma, on the other hand, continued wiggling her butt after a short pause, and it was not long before the feeling of her ass and the side of her exposed back prompted a growing erection. The brother was too turned on and too busy contemplating what to do to notice this, though, until his dick had attained a length, angle and hardness that had the head and part of the underside of it to grind against Emma's buttocks each time she moved.

Keith could not hold back a ragged exhalation - there was no denying that it felt good, and in but a few heartbeats he was at full hardness. Sleeping was, it seemed, completely out of the question now. He needed release, one way or another. In fact he figured that if Emma kept moving around as much as she did now, he might end up making a mess of his boxers without moving a finger.

But just when Keith had decided that an orgasm as required for him to fall asleep - which coincided with his member coming to stand at full attention, throbbing eagerly - the girl seemed to settle down at last, lying almost perfectly still, with her butt pressing against her brother's stomach and his erection being trapped right in her crack. Keith winced: it was hot enough that his erection definitely would not go away on its own anytime soon, but it would not bring him any closer to sweet release.

A little very unmanly whimper escaped him as he felt frustration welling up inside of him anew. He tried to figure out how to deal with this situation, what he was supposed to do, and although part of him still opted to try to keep this night an innocent affirmation of Emma and his relationship as siblings, Emma's continuous teasing - whether intentional or not - had awakened the dark part of him that corroded his conscience and swept away his inhibitions. It had been a gradual process to rouse the beast, but by now he was horny enough for his desire to start overpowering the rest of him, urging him to take the pleasure he wanted. And oddly enough his more sensible side soon agreed with his lust, figuring that it was better to do it now while he still had enough sense to be considerate to Emma, rather than wait until he did not care about that anymore... that frightening state of mindless lust he had been driven to that fateful last 'test'. He did not want to become like that again. Ever.

Looking down at Emma's stationary ass at his belly, the head of his dick just barely visible, squeezed between her buttocks as it was, Keith swiftly came up with a plan. Slowly and carefully he began gyrating his hips, very gently, so that his penis was massaged up and down its length by the ass pressing against it. There was still two layers of fabric between the two of them, one in Keith's boxers and one in Emma's panties, but the situation was still somehow so kinky that even the small movements he dared make caused waves of pleasure to overcome him, and without meaning to, he gradually began moving faster, pressing himself against her, panting quietly with excitement. If only...

Keith let an automatic guttural growl of annoyance when the pressure against his member suddenly disappeared, and he had to fight the urge to just reach out and pull Emma's butt back to continue. It took a moment before he realized that she kept shuffling around in the bed after she had retreated from his improvised emergency no-hands masturbation, and further several seconds before he comprehended that she was turning around.

When Emma became motionless next she had turned around so that she was facing him, looking into his eyes - wide with surprise as they were - with her big brown ones, their faces just a few inches apart, so close that he could feel her breath on his face. Now more than ever before, it occurred to Keith just how beautiful his sister was, at least to him. Small perfect nose, thin but girly lips, somewhat narrow but nicely defined face, and those eyes, big and sparkling like diamonds. He was breathless, struck with awe.

She smiled, so softly and warmly that Keith could do nothing but smile back, though much more uncertainly. Despite everything, he was still nervous that he had betrayed her trust somehow.

"I was starting to worry you'd never take a hint," she teased him quietly, banishing at least one fear from her brother's mind. "Or that you just didn't want to."

Keith grunted something inarticulate, cleared his throat and then tried to speak again. "No way..." He paused, then continued. "How could I not want to? With you deliberately trying to -" How could he put it? As stupid as it seemed, considering everything else they had been doing, he still did not want to introduce Emma to any inappropriately mature language for her age. "- get my thing ready. I told you that when you do stuff like that, it gets excited."

The cutest little giggle escaped her, and Keith felt his member react with a painful throb. "Figured from how you behaved last time that getting your thingie excited got you excited, too."

At this, Keith's smile faded mostly, and he frowned a bit. The way he behaved last time was to savagely pound her from behind with just about every cognitive function turned off except his sex-drive, a state he did not recover from until a good while after he had flooded her pussy with his cum. Once again he reminded himself how little he ever wanted to be like that again. But the way Emma spoke, it sounded almost like she did want it.

"Relax," she urged him after a moment, apparently sensing his discomfort. "I stopped teasing you, didn't I? I just wanted you to start a 'test' yourself."

Forgiveness was achieved immediately at this, and Keith's expression quickly softened back into a smile. But now that he had been turned on like this, and basically been given a green light from his sister, he could not help but to look down her body at her chest and stomach - her pelvis was sadly hidden under the duvet at the current angle, but what he saw was more than enough to get his heart pounding furiously.

"You didn't stop teasing me entirely," he joked, looking back into her eyes. She bit her lower lip playfully and edged a little closer, until their knees were touching, and he felt her hands brush over his own, just for a moment.

Before he even realized he was moving, Keith's hands had already found the curve of his sister's hips, and were gently caressing her shape up her stomach and the sides of her ribcage, where he lovingly traced one rib from either side towards the center, until each of his hands found a tiny breast of their own, so oddly firm and soft at the same time. He kneaded them gently, yet with a certain urgency to his movements, running his thumbs over her nipples, rubbing and massaging them the way his instincts dictated.

The little girl kept staring at him with those magnificent eyes of hers, with that odd expression he could never seem to read well enough for him to get satisfactory insight into her thoughts, but right now Keith wanted to believe that she was egging him on, that she was as turned on and impatient right now as he was. He kept fondling her chest for over a minute, occasionally letting one hand or the other stray to touch her collarbone or shoulder, eagerly exploring her body as if it was the first time. By then, however, he received a rather definite sign that it was time to move on, when he felt her slender fingers lightly on his cock (a new word he had tentatively added to his internal vocabulary just recently), through his boxers.

Keith looked into sister's eyes even more intently, as though thinking that he could read her mind if he looked hard enough, until she flashed a playful grin at him and deftly slipped her hand up to the waistband of his boxers, then into them where her fingers firmly grasped his girth, and began pumping it up and down.

Recognizing this maneuver from one of their past 'tests', though back then he had been the one to initiate and she had followed, he grinned back at her and sent his right hand running down her stomach, letting a finger slip into her navel on the way just because he felt like it was kinky, before he reached her waist and slipped his hand into her panties. Although part of him wanted to take it slow, to draw out the pleasure by playing around as much as he could and enjoying every inch of her body, there was also a new urgency to his movements. Feeling Emma stroking his length was getting him excited very quickly, and he did not want to waste time returning the favor and risk leaving her unsatisfied by the time he was done. It had not been a problem before, but it was nevertheless one of Keith's most immediate fears. So without any ado his hand ran down her pelvis, slipping down her thigh just a moment to caress the soft, silky skin there, and then his hand was in her crotch, his middle finger rubbing back and forth in the groove of her slit.

Barely had Keith begun slipping the tip of his finger into her before her efforts at masturbating him became suddenly more fervent, holding him a bit tighter and moving significantly faster. Her handjob took his breath away quickly as hormones interfered still more strongly with normal thought-processing, but he did try to respond in kind, inserting his middle- and index-fingers into her pussy, pumping in and out of her in a rhythm he unconsciously tried to match with the movement of her hand, while grinding the knuckle of his thumb against her clit.

He had never realized this before, because his attention was usually focused on her crotch at this point, but with their faces right next to each other it occurred to Keith that Emma actually made some rather cute faces when she was being stimulated. Her brow was just slightly knotted in an expression that almost looked worried, maybe even a little pained, and her mouth had fallen open a bit as she panted into his face. She was so close, and their faces were so in level, that he could actually taste her breath in his mouth, making him realize that his mouth had opened, too.

Right then, some part of Keith's brain desperately wanted him to close those negligible few inches that separated them and let his lips meet Emma's, perhaps even let his tongue slip out to explore her mouth a little - to put it bluntly, he wanted to kiss her. Yet he was certain that he could not, that if he actually tried it he would overstep the boundary he was so afraid of, that unseen threshold that marked the transition from curious exploration to the development of a proper romantic relationship. While the 'tests' were fine - even now he could not get himself to admit that they were having sex, not even to himself - he still thought that being romantically involved with his little sister would be too weird. It was not like there was any future in this... they were not boyfriend and girlfriend, they were just 'testing'.

'Girlfriend'... The word touched places in his mind that he had never been in contact before. It felt pleasant. But even so, Emma... even if he wanted it, it was still wrong (as if that had stopped him before). And he did not want to risk losing this, so he kept his distance, and settled for what he had.

But even if they did not kiss, Keith still thought it was a very special experience to be face-to-face with Emma while they were together like this. He could actually see the results of every move his hand made at her crotch materialize in her expression. Her eyelashes would flutter, her lower lip tremble, a little breath be more ragged than the rest, and many more little signs of when he did this or that, all while he felt his fingers getting drenched in moisture. It was a bit odd, but it felt like much-needed confirmation that she really enjoyed the 'tests', and did not go along with them just for his benefit. That he - his dark side not withstanding - was not a monster.

As they went, Emma's masturbation of her brother grew increasingly frenzied, to the point where it was painful for Keith, whereas the boy decided to bite down on his pain and concentrate on fingering his sister just as hard as she was pumping him. After all, he did not really want to orgasm from this particular exercise. Amazingly sexy as it was, he usually only had it in him to cum once every several hours (unless something especially arousing happened), and he wanted to deposit his one daily load in his sister's womb, not on her stomach (that particular possibility brought up uncomfortable memories). Emma had already demonstrated being able to cum several times in relatively short time, so he was aiming to get her to climax before he was ready to. To that end, she was actually doing him a favor by clutching his dick so fiercely and moving her hand so fast and far that he started worrying about the skin falling off.

It turned out that his objective was not far off, as Emma's hand suddenly started jerking so fast that Keith almost cried out in protest, but then stopped moving entirely, even as he could actually see her every muscle seem to twitch, her vagina seemed to squeeze his fingers, and her expression turned into one of partway surprise and partway bliss, both mouth and eyes opening wide as she let out a whimper that soon turned soundless. Keith smiled. His sister was beautiful when she came.

Once she came down from her orgasm, Emma offered her brother a slightly groggy-looking smile and clumsily tried to continue masturbating him, but Keith stopped her with his left hand and gently pulled her out of his boxers, even as he kept slowly and gently fingering her slit. Only when she looked him in the eye, an unspoken question being communicated between the two, did Keith withdraw his fingers, giving her mound one last pat before pulling out of her panties.

He smiled at her, more than a bit nervously, trying to transmit an unspoken question of his own. It took a moment before Emma seemed to understand, but the change in her expression - it became more awake, more eager, and he loved her for it - told him that he had her cooperation.

Slowly, without breaking eye-contact with his little sister, the boy reached down with both hands and gently pulled her panties down as far as he could reach, before Emma took over and shook them off all the way, so that she was now completely nude except for her little ankle-socks. The simple awareness of this fact was enough to make Keith all tingly with excitement, and he positively trembled when he felt her hands on his crotch again, not pulling down his boxers but just pulling out his cock so that it was free in all its erect glory. She nodded, almost imperceptibly, and Keith nodded back. It was time.

In their current positions arranging things proved a bit awkward, though. Neither of them seemed to have any desire to move about too much, perhaps out of fear that someone would hear or see them, or perhaps just because of the newfound intimacy of being face-to-face. They both tried pushing their pelvises forward, towards the other, but due to the height-difference between the two, when their faces were level with one another, Emma's pussy was too far down for Keith to easily enter her, and too far up for him to get more than one third or such of his penis inside. Plus, lying on their sides as they were, any major movement seemed a bit harder, and actually getting access to Emma's crotch was far from as easy as when she could have her legs spread.

It took some quiet planning, but soon the two had moved so close that their chests and stomachs were pressed against each other, and Keith felt his member being squeezed between his and her belly. Still looking into each other's eyes, Emma first moved herself upwards - that is, in the horizontal direction her head was pointed in - until her brother's eyes were level with her chin. Then she 'lowered' herself 'down', throwing her left leg - the one on top of the two - over his waist so that her legs were at least a little spread. After a few moments of careful blind aiming, Keith was rewarded with warm flesh gripping the tip of his cock, and soon Emma was back in eye-level, staring at him with a strained smile, an odd pained expression in her eyes even as he could actually feel her heartbeat - transferred straight from her chest to his - accelerate. Then she lowered down further, until Keith was in eye-level with nothing but her hair, and he was balls-deep in her pussy.

Much as everything that night, this part of their 'test' was nothing like any before it. It was not just the position they were in, which even without eye-contact still placed them closer to one another than they had ever felt before, their sweaty naked bodies rubbing against each other with every movement they made, so close that they could feel each other's heartbeat and breath. It was not just this new sensation of oneness, but also the fact that while the risk of exposure was still as real as ever, and just a glance through the door to Keith's room by the wrong person could destroy their lives forever, they did not have to hurry. Everyone were presumably asleep, and would probably be until morning, so as long as they were quiet they could spend as long on this 'test' as they wanted, within that spectacularly wide timeframe. There was no need to worry... Keith, at least, felt like they had all the time in the world.

They both moved, neither of them being notably more active or inactive than the other, neither seeming dominant nor subordinate, they simply moved with each other unspoken agreement that this was what they were doing. Keith could feel Emma using her left arm, draped over his shoulder as it was, to pull herself up towards his face and partway off his dick, while using her left leg - still wrapped around his waist - to first push herself out and away from him, letting his length slip out even further, before pulling herself down and towards him at the same time in relatively quick, yet gentle plunges, each one sheathing his penis in her all the way, each move causing her to pant and moan into his chest or neck, depending on where in her cycle she was. Keith, meanwhile, reached down with both hands, sneaking one below her and one above, to grab her ass and use his arms to aid her in the movement, regardless of whether his left wrist was being squeezed painfully by her hipbone all the while. He also resumed making that gyrating his hips like he did earlier, matching his movements to the rhythm of his sister's tentative motions, thrusting in as she lowered herself, pulling out as she moved away.

There was no urgency in this at all, and Keith loved every second of it. Climaxing did not even register in his brain as an objective anymore, and despite what he was doing, the beast inside him seemed to have all but withdrawn, leaving only the loving brother to appreciate this closeness to his little sister. It was not a particularly sexually arousing position, this, although it certainly kept him hard and going, but emotionally it was the best, most fulfilling thing he had ever tried. It felt as if it was not just his and Emma's bodies that were intertwined, but their minds and their very souls as well. He felt that he knew more of what she was thinking right now than he had ever been able to interpret from her before, and she understood him better, too. It might all be in his imagination, but the result was that they kept up this gentle pounding for over half an hour, never getting out of breath, losing the mood or getting bored, just enjoying the moment without worrying about anything else.

It was almost with disappointment that Keith eventually felt the first signs of his impending orgasm, still a couple of minutes off in the distance, but much too soon in his opinion. He wanted to stay like this, forever if possible, and did not want it to come to the end which his climax would inevitably spell for their session. To do this, he actually slowed down his already tender thrusts and tried to move as little as possible, but even so Emma kept moving, kept sliding on and off his member, and kept drawing his orgasm closer.

"Let's take a break for a moment," he whispered to her, tenderly squeezing her ass as he did. He just needed to calm down enough for his climax to be delayed, then they could continue.

Emma would hear nothing of it, though, her voice firm, yet at the same time soft and warm. "Not yet."

He felt an excited shiver go through his entire body as he was continually being pushed towards the point of no return. "I just need a minute..."

"So do I," his sister replied cryptically, and it was a moment before he realized what she meant. She's about to cum, too!

There was a moment of hesitation in which he tried to figure out what to do, what would be preferable, before he started moving again, thrusting into her with renewed vigor, some measure of the urgency he usually felt returning as their individual orgasms drew closer and closer. He wanted to make sure she came before he did, but had no idea how. He pulled his left hand away from her ass, ignored the feeling of pins and needles in it as the blood started flowing back in it now that her weight was no longer lying on it, and started rubbing her clit in the hopes of hurrying her along. Maybe if he got her to climax soon enough, there would still be time for them to stop and calm down before he got to his, so they could continue through the night.

That was his hope, but that was not how it turned out. Despite Emma's assurance that she was close, she was still building to her orgasm, moaning and whimpering with growing urgency, by the time Keith felt his entire body tingle, his dick as if charged with electricity and his balls contract, and knew that it was far too late. He came unabatedly, as always pushing himself as far and deep into her pussy as he could without consciously trying to, spewing his seed into her in mighty spurts that he felt sure that she must have felt coating her insides.

Whether this was the case or not, just as he started shooting his load inside her, Emma pumped herself up and down her brother's member only one last time before he felt her inner walls clamp down on him, whimpering quietly as he felt her body tremble against his own. It was wonderful, cumming inside his sister while she was cumming, too, and Keith almost felt as though this very fact earned an extra couple of squirts than his testicles had originally meant to impart, as if rewarding them both for their good work.

They both made a few awkward last, unsynchronized thrusts, just erratically pumping Keith's dick in and out of her a few times as they rode their orgasms, before they fell motionless, clutching each other with their hands, pressing their sweaty bodies together and panting with exertion. By then they were both done, and all that was left was to wallow in post-coital bliss, enjoying each other's nearness.

Keith could not seem to stop smiling, so happy and satisfied did he feel. His mind was foggy from the remnants of his orgasm, and now that he had finally had release, sleep seemed to be coming to him all on its own. Even as he felt himself gradually slipping into a deep slumber, he drew up his left hand, still soaked in his sister's pussy-juice, and lovingly ran it through her hair, stroking her head affectionately. He could tell by the sound of her breath that she had already fallen asleep.

Hesitating for a moment, Keith mentally shrugged and lowered his head, tenderly kissing Emma's forehead before clutching her head to his chest, resting his chin on the top of her head. And that was how they fell asleep, still wrapped in each other's bodies, held in each other's embrace, and with Keith's spent and soft penis still plugged in Emma's vagina.

It was the best night's sleep Keith had ever had.

Luckily no one walked in on them during the night the two of them slept together, or trying to explain the situation would have been beyond even the skills of the best liars in the world, let alone a pair of inexperienced children like them. Keith woke up to finding Emma gently rocking herself back and forth next to him, with an erection he could only imagine must have been morning wood still stuffed between her nether lips. Needless to say, Keith had a new favorite way of waking up at that very second, and they smiled at each other in wordless appreciation.

They continued until Keith came in Emma's pussy again, after which he rubbed and fingered her to an orgasm of her own. By then the sun was already up outside, so Emma quietly put her nightwear back on and quietly darted off to return to her own room, so that no one would suspect anything, while Keith stayed back, thoroughly sated and spent, positively thrumming with glee from having cum in his sister twice in but a few hours. And things only seemed to get better once he realized that his sister had left her panties behind when she left.

Somehow, he knew, they would manage, with or without Mike trying to interfere. This was too good to allow to end for something as insignificant as that.