Chapter 6 - It gets weirder

by MadGenuis

It was not long after the 'test' in which Keith and Emma had finally consummated the relationship that Keith persistently refused to acknowledge they had that it began to dawn upon the thirteen-year-old just what it was he had agreed to in the heat of the situation: another 'test', during which he would have more-or-less no choice than do what his little sister wanted... or let her do what she wanted. It had seemed like a good idea at the time - quite sexy, even, to let her take charge and leave his fate in her hands - but as the date of the 'test' was set to the next day and Keith started to awaken from his post-coital stupor and could finally think of something other than the sight of pussy dripping with his semen, he began to dread what was going to happen.

He had tried to think hard about what he knew Emma liked by her reactions during their previous 'tests', and derive thereof what she might do. But as it turned out, he had no idea what might happen. The only thing he could think of that she could do to him was to try and shove something up his butt, which he did most definitely not want to happen! Not that he was in any position to protest after having already agreed to do what she wanted... but to him, that was the stuff of nightmares.

But then again, what if she planned something that was not meant to torture him, or sate her curiosity or whatever purpose such an excursion into things that to Keith was exit only? It might be that she was planning something just to please herself... or to simply try things that she was curious about. In hindsight, he knew that she apparently enjoyed having her ass fingered, and having it stimulated in general. Maybe that was all she wanted - to have him shove things up her butt rather than her shoving things up his. That would definitely be much better. And if the thing she wanted to have put in there happened to be his penis... well, anal sex was not really something that appealed to the boy, but if that was what she wanted, he figured he might as well try it and see if he enjoyed it, too.

Or maybe something else entirely, something not butt-related. Maybe she just wanted him to finger her and lick her like he had done since their first time... or maybe she wanted to - dare he even think it? - give him a blowjob. He had no idea why she would want to do that, but figured that maybe she was curious and wanted to try it? If she asked for it, he would certainly not be one to protest. Or maybe something not sexual at all, like she just wanted a kiss? It occurred to Keith that even though he had lost his virginity, and she hers, neither of them had kissed anyone before.

So it was that Keith spent about twenty-four hours from having truly had sex with his sister the first time alternating between hope and fear for the approaching 'test'. Whenever he thought about all the things he might do to Emma, his erection would ache so that he could barely resist the urge to touch himself, and whenever he thought of the things she might do to him... well, needless to say any prior erection faded rapidly, and his butt clenched so hard that he imagined it could have bent an iron wrench.

It was during a lapse into silent dread that day that Emma came up to him and tapped his shoulder, mouthing the word "test" before she nonchalantly headed upstairs towards Keith's room, as though nothing unusual (unholy, illegal, abominable) was going on at all.

What shocked the boy even more than his little sister's apparent indifference about the wrongness of their eminent encounter, however, was how little she seemed to care about the fact that unlike yesterday, the two of them were not home alone. As a matter of fact Keith was sitting in the couch in the living room when Emma approached him, with their eight year old brother Mike situated just a few seats away in the very same couch, and both their parents located just in the other end of the room. If the very act of thinking about having 'tests' with Emma had not been enough to reduce him to a stammering nervous wreck, propositioning for one around the rest of his family most definitely would have. Granted, they had masturbated each other with a blanket as their only cover with the entire family gathered in their couch, and had immediately after went upstairs to really get down to business... but still, this seemed more dangerous, somehow. Probably because his brain was not swimming in hormones and he did not have a raging boner stealing the blood away from it.

Well, actually... Keith looked down at himself, and realized that the second Emma had signaled him, at least that last claim was no longer true. His erection stood ready for duty, and he already felt the pleasant tingling going up his spine, and heat rising to his face.

And so Keith stood a minute after his sister had left, and followed her upstairs, with the tent of his erection serving as his compass, pointing the way to pussy the way a hound would point the way to prey.

It seemed almost anticlimactic how casual this entire endeavor had become, somehow. Naturally Keith still feared discovery by the rest of his family, and he guessed that Emma would have the common sense not to want that either, but how easily it had all seemed to be arranged this time seemed to put these worries in the background, and removed some of the excitement of doing something forbidden. There was not the same sensation of danger as there had been the first times - the danger of Emma being repulsed by what they were doing and coming to hate him, the danger of discovery by their family and being branded freaks, the danger of what they were doing somehow becoming known even further out and Keith likely being locked away in prison with the key to his cell thrown away.

Actually, he thought as he reached the top of the stairs and was about to turn and enter his room, maybe a little less danger is a good thing. I mean, I don't want any of those things to happen, and I still get to do stuff with her.

He took solace in this, and arrived before his bunk bed with slightly higher spirits than when he had started climbing the stairs.

And there she sat waiting for him, kneeling in his bed just like the first time they had been together in a 'test' on that fateful day, her knees together and her hands resting on either knee. She was wearing a pair of moderately tight gray jeans and a white T-shirt, her hair let down just the way she - and to be honest, Keith as well - preferred it. Her expression was somewhat nervous, almost flustered, and Keith's heart warmed at the sight of his precious little sister shyly averting her gaze from him as he climbed into his bed.

So cute she is, he thought affectionately, secretly wondering if he looked as befuddled when he was the one orchestrating their 'tests'. He figured he probably looked even more terrified than she did.

Seating himself in front of his expectant little sister, Keith simply sat down with his legs in front of him, awaiting some kind of instructions - all while Emma remained where she was, not saying a word but just shyly looking over at him from time to time.

As adorable as her newfound bashfulness was, the inactivity soon started to bother Keith, as the thought of the rest of the family being just downstairs crept up on him again, along with the knowledge that they could start wondering where the oldest two of the three children had gone to at any moment. Even as he had only seconds earlier felt a little disappointed in the lack of danger during their 'tests', his mind quickly manufactured significantly more danger than he was comfortable with, and he grew impatient with Emma's hesitation.

Ironically hesitant to urge the girl to go on, Keith cleared his throat to break the silence, causing Emma to start at the noise. "Shouldn't we... you know, do something?" he asked with bated breath, and finally Emma met her brother's gaze, a look of fear in those big brown eyes of hers.

"Yes! Yes, of course," she immediately agreed, her eyes momentarily shifting from Keith's eyes to the empty doorway that lead straight to the stairs. Seeing this, Keith actually allowed himself a small smile of relief. So she is afraid of the others finding out about us after all. Good. With how casual she seemed about it, it was only a matter of time before someone figured out what's going on.

"Well?" he said expectantly when several seconds passed without Emma continuing, the broken silence once more making her start in surprise. "What should we do? You're in charge of this 'test', remember?"

"Yes, yes," she quickly nodded at him, smiling nervously. God, she was adorable... "I guess you should, uh... get undressed."

Arching an eyebrow at this request, Keith began to comply nonetheless, starting to take off first his T-shirt, then his trousers. It was weird, because usually during the 'tests' they had always undressed each other rather than undressed themselves. It had become something of a ritual in Keith's mind, and it felt strange to him to break that particular tradition of theirs. Once his trousers were off he hesitated for a moment, half-expecting Emma to change her mind and remove his last pieces of clothing herself. When she did not, he pulled off his socks and then his boxers, letting his by then less than full erection jump out to greet its best friend in the world, wagging slowly in the air as it was not entirely hard yet.

After receiving another expectant look from her now naked older brother, Emma began pulling off her socks in a slow, almost reluctant manner, and then paused for several seconds before removing her T-shirt. Keith immediately felt his erection gain hardness as his sister's naked torso was revealed to him once again, its thin frame breathtakingly beautiful in his eyes, and the knowledge that her chest brandished yet-indiscernible budding breasts adding great measures to his excitement. Then the turn came to slowly pull down her jeans, letting him gaze upon those pale, thin yet shapely legs of hers, and finally, as she removed her cute little white panties, he stole a glance at the delicious pink object of his desires, Emma's nether lips that had been vomiting his semen last time he had seen it.

Once Emma was fully undressed, however, she resumed the position she had been sitting in just before, which inconveniently to Keith hid her crotch from view. He found himself desperately wanting to lean over and caress her, to show the little girl how much he loved every single inch of her body, but with a surge of willpower he bridled his lust. Emma was running the show this time. He had to do as she said, when she said it. That was what they had agreed.

What is she waiting for? Keith wondered, growing more impatient as Emma once more seemed to settle into inactivity, just sitting there and letting her gaze wander back and forth across Keith's room. She had seemed so eager yesterday, and she certainly had not seemed hesitant about it when she had signaled for him to follow her upstairs to begin the 'test'. In fact, throughout this strange relationship of theirs, she had always seemed to handle things far better than her brother did. What had changed? Why did she hesitate now, when she never had before? Was whatever she had planned really that dirty?

Abruptly, Emma's eyes went to the doorway into Keith's room again and fixed on it, her eyes widening slightly and her mien growing tense, her hands quickly moving to cover her chest. Immediately filled with dread at seeing her reaction, Keith followed her gaze, his heart feeling suddenly very heavy in his chest. He saw it, and felt suddenly lightheaded.

Standing in the doorway was their little brother, Mike, looking small, feeble and quite perplexed at what he was seeing.

Oh God, the older brother thought, his hands immediately moving to cover his crotch. That's it. We've been found out. Our lives are over. Any minute now, the police is going to arrive, shove a shotgun up my ass and pull the trigger.

"I - uh - we - it's not - ugh," Keith started to ramble, panicking completely, a thousand different plans flashing through his mind, ranging from accepting whatever fate was coming from him, to fleeing and leaving the country, or even murdering his younger brother and hiding the body to preserve their secret.

It all sort of piled up in a chaotic heap in Keith's head, leaving him pretty much incapable of speaking a full sentence.

"Keith," Emma said tartly, silencing her older brother as he stared at her, eyes wide in horror. "Keith, relax. Mike is here because I told him to come."

For several seconds Keith just stared at her, utterly incapable of comprehending just what she was telling him. "What?!"

"I told him," the girl continued, strangely seeming more confident now that Mike was here than she had been before. "About us, and the 'tests'. He's here because I want him to watch."

Keith did not know whether to feel terrified that his sister had revealed their secret so easily, or if he could somehow manage to convince himself that it was sexy that his sister was apparently such a pervert. He ended up settling with being terrified. "B-but," he stuttered, leaning closer to Emma and lowering his voice so that Mike would not hear them, "but it's Mike! He can't keep a secret for the life of him! I-if -"

But Emma interrupted him before he could continue. "Well, he's here and he knows, and there's nothing that can be done about that now, is there? So we might as well go ahead with my plan, right?" Keith's eyes widened and his jaw dropped, taken aback by his sister's logic. "After all, you said we were going to do what I wanted this time. This is what I want."

Leaning back, the boy stared at his sister with surprise. She planned this all along! Oh, this is going to end so badly... Still, he could not argue with her logic. He had been the one to suggest that she was going to run this 'test', and he had agreed to do whatever she wanted. It seemed that he had rather underestimated how depraved her mind was, but it was too late to back out now. After all, Mike already knew, he had already seen them naked together in bed. There was really no way the situation could possibly get any worse.

"Okay," he sighed, still very much opposed to the entire situation but prepared to follow Emma's instructions regardless. "So, what now?"

Shooting a glance at Mike, Emma seemed to consider for a moment. "Can we do that thing we did yesterday? That last thing? I want him to see that."

I wonder if she was this deeply disturbed before we started having 'tests', or if I made her this way, Keith thought grimly, somehow feeling guilty on behalf of his sister for having this kind of fantasies. He looked from her to Mike for a moment, feeling just about the most uncomfortable he had ever felt... when he realized that a convenient loophole had presented itself to him in his hour of need.

"I can't," he told her, genuine regret in his voice as he removed his hands from his crotch and exhibited his little limp penis, his erection having faded almost instantaneously when he had seen Mike. Emma looked down at his shrunken tool, disappointment on her face. "It needs to be big and hard for that, and... well, it isn't."

His sister looked up at him, her eyes wide, and innocently asked, "How do you make it hard?" Damn it! Just seeing and listening to her like that was enough to send a pleasant tingling through him, and a barely discernible twitch went through his dick. He swallowed.

"Well, uh," he began slowly. How do you explain something like that? "The, uh, thing, has to want to be big and hard, you know? Like... Usually, being around you is enough to make it get like that, but, uh, I guess it's shy around Mike?" He smiled sheepishly, scratching his neck. "So I guess you need to, uh... get its attention? Somehow?"

Emma stared at him, then his penis, then him again, apparently greatly fascinated by the wisdom he was bestowing upon her. "How?"

Keith shot a look at Mike, his attention quickly returning to Emma, his brain working so hard that he could have sworn he could actually hear it. What was he supposed to respond to that? On one hand, he could lie to Emma and somehow avoid getting an erection during this 'test', which would mean that the youngest of the siblings did not see them doing anything definitely incriminating. Or he could actually try, tell his sister the truth (whatever that might be), and probably scar Mike for life and prove to him that what Emma had told him was true - but he would get to repeat the success of last night. What to do, what to do...

Eventually, Keith thought Fuck it, and decided that the cat was already out of the bag - now he might as well enjoy his time in this dream before it turned into a waking nightmare. "Like, by touching you and stuff," he entrusted her, both of them blushing fiercely. "Or you doing something... you know, sexy."

Nodding with an almost comically serious expression, Emma concluded, "You mean like touching my boobs?" She thrust out her chest, as though offering her bony ribcage and the two nearly undeveloped breasts there to him.

Keith almost laughed, feeling some of the tension inside him loosening. "It's as good a place to start as any."

Trying to ignore Mike over by the doorway, who was staring at them, Keith leaned in and gently began tracing the lines of Emma's ribs through her skin with his fingertips, trailing up and down her chest, feeling the curve of her collarbone and shoulders, caressing her stomach, all the while starting to feel hotter and hotter inside, as though he was absorbing heat from his sister, and feeding an inferno inside himself. While his hands roamed free, eventually even working around her to feel her back and spine, and down to caress her hips, he leaned in until his face was directly in front of his sister's left little nipple, poking out from the slight extrusion that was her budding breast. Leaning in further, he started rubbing his face back and forth over her chest, simply dragging his cheeks across her skin, relishing the feel of squeezing her soft tiny tits.

It felt great, the feeling helping Keith lose some of his inhibitions, and soon both his hands found their way back to her chest where they eagerly went to squeeze and rub her breasts. Parting his lips, noticing only then that both his and Emma's breathing had quickened significantly already, the boy went to bite on his sister's nipples through his lips, sucking on them, letting his tongue slip out and play with them, juggling them back and forth.

His mind practically went blank with desire, and soon he began licking and kissing his way down from Emma's chest, working his way gradually down her stomach, his hands already having slipped down there to lovingly caress her smooth hips, thighs and knees, rubbing back and forth across her legs.

But when he was just about to wedge his hands between his little sister's thighs to push them apart and allow him access to her most sacred area, some little part of his brain not yet given over to his lust presented him with the unwelcome memory of Mike's presence. In an instant the tension returned to him with renewed strength, and as he leaned back and away from Emma again, his erection - which had gotten to full hardness - was already quickly fading.

Panting heavily, Keith turned his head to look at Mike, who still looked clueless about what was going on. Then he looked at Emma, who was still panting as well, her eyes lowered to look at her older brother's softening member.

"It's getting small again," she told him, as though he would not be aware of this himself. Keith averted his eyes from her, biting his lip. This was definitely not going how either of them had hoped... "I guess it's really shy around Mike, huh?" There was a thoughtful pause. "But... Mike was there at movie-night, and it was hard then."

There's that logic of hers again, Keith thought, closing his eyes and heaving a sigh. One of these days, her logic is going to kill me. "Yeah, he was, but I wasn't really thinking about him being there at the time..." And he wasn't staring right at our uncovered bodies while we did it. "I was sort of concentrating on..." He blushed. "You know... your thing." He made a vague gesture at Emma's crotch.

Abruptly donning an encouraged smile, the little girl's eyes widened in understanding. "Right! Because your thing likes my thing, and you were touching it!" Eager now, Emma spread her legs and leaned back a little, giving Keith a glorious view of her delicious pussy. Even just from looking at it, he felt his throat constrict and his penis tingling as blood started to pour into it again. "You can touch it now, if that will make your thing hard..."

Oh God... Keith felt downright dizzy with how wonderful this situation would have been if Mike had not been here, and how unrealistic it seemed because Mike was there. He tried to swallow, feeling oddly hot and cold at the same time. Oh, how he wanted to...

"I-I-I c-can't," he stuttered, not sure if he was about to start crying, vomit, or get an erection. "M-M-Mike..."

"Oh?" Emma said, still smiling. Keith's eyes widened and his heart skipped several beats as she slipped her own right hand down to her crotch, sensually rubbing around her vagina with her own fingers. "Will this work, then?"

Keith just stared, dumbstruck, as his little sister began caressing her own pelvis, first with just her right hand but after a few seconds with both of them, rubbing eagerly everywhere down there but on her pussy itself, roaming wildly in lustful fury. Keith wanted to say something, anything, but it seemed as though his brain had completely ceased functioning at the moment, quite simply overloading with horniness at the sight before him. He licked his lips, Mike forgotten, and simply stared.

After about half a minute or so, Emma's hands seemed to pause for a moment, holding still at either side of her pink slit, and her brother held his breath in excitement. Agonizingly slowly, the right hand moved to the left, aligning its fingers with her pussy before pressing against them ever so slightly, not penetrating, but just fitting shallowly between her labia while she began stroking her finger up and down her gash. Keith felt as though he was about to explode - not as a metaphor for an orgasm, but literally explode, as though a huge pressure inside his body threatened to make him pop like a balloon. He could not remember having ever been this horny before, even more so than when he had failed to achieve climax the first time he had been inside Emma, and subsequently gone three weeks without an orgasm. He was positively trembling with desire.

As though in a trance, Keith's eyes followed the movements of Emma's finger, his chest constricting painfully at the sight. Up, down, up, down... it was almost hypnotizing for him to behold. But after about a dozen strokes, she stopped moving, just long enough to push her middle finger all the way inside herself, mewling happily as she did so.

"Guh," Keith groaned inarticulately, seeming petrified as Emma slid her own finger back out of herself, then in again, slowly fingering herself - and while she did so with her right hand, her left went to the topmost part of her vagina and started rubbing her clit, and soon she was masturbating with her full vigor. Porn be damned, Keith decided right then and there - this was by far the sexiest thing he had ever seen, and he almost cried with sheer repressed excitement when Emma started moaning quietly, slowly starting to move her pelvis in rhythm to the movements of her fingers.

And finally, with a brief gasp, Emma arced her back as her body convulsed in what Keith was utterly convinced was an orgasm. He looked as though his eyeballs were liable to pop out of their sockets any moment now. He just stared intently at his sister as she trashed from side to side a little, her left hand rubbing her clit furiously while her right hand had thrust its finger all the way inside her.

Straightening once she had recovered from her orgasm, though she was still panting heavily, Emma looked at Keith with a blissful smile. Keith did not even have to look down - after a display like that, his dick had gotten so hard that it hurt, and it stayed that way even when his mind slowly became able to process other things than how hot his sister was, like Mike's continued presence. His erection was as ready as it would ever be, and aching for release.

"Finally," Emma sighed, reaching out and lightly touching her brother's erection with fingers still wet with moisture from her vagina. The feeling was almost unbearable to Keith, who felt like lightning bolts were passing through his brain and half-expected to simply lose consciousness from sheer over-stimulation. "Mike, look at this."

Keith barely even looked and did not care at all that his little sister beckoned their little brother over to the bed and exhibited Keith's penis to the eight-year-old, pointing to it with what almost seemed like pride.

"It's as big as dad's," Mike mumbled, staring at his brother's prick timidly. Somewhere in the depths of Keith's mind, he wondered when Mike had seen their father's member, although he quickly dismissed the question as foolish. He had seen their father's penis, too, when they changed to clothes going to swimming pools and such. Nothing strange in that. "But dad's doesn't stand up like that..."

"It stands up because it likes me," Emma entrusted Mike proudly, smiling widely all the while. Another horniness-induced tremor went through Keith's body. "Say hello, pee-pee."

Perhaps needless to say, flexing his PC muscle and causing his erection to waggle was considerably harder for Keith now than otherwise, with him being in a state of extreme arousal, but if only to please Emma he somehow managed to make his prick jump a few times in a sort of crippled-looking wave.

"Poor pee-pee," Emma giggled adorably. Again, Keith felt sure that he would faint, and actually almost did, the world momentarily fading from his view. "Don't worry, I know how to make it better. Let's do that thing now, Keith." Turning around and rising herself up on her hands and knees, with her butt lifted behind her, Emma presented her hot, wet snatch to her older brother. By then, Mike or no Mike, Keith did not need to be told twice.

Emma had probably arranged herself like that on purpose, but when Keith raised himself on his knees and went to align himself with her sopping entrance, both of them ended up with their sides turned to Mike so he saw them in profile, having full view of both of his older siblings and could see perfectly what was going on between them. He just stood and stared while Keith took hold of his painfully hard shaft to put the end against his sister's nether lips - and, as soon as he felt the head of his member nestle in her slit, wasted no time before pushing all the way in.

Keith was so driven by lust by then that he became utterly oblivious to Mike's presence, and only sensed the hot, wet, soft tightness of his sister envelop him, only heard her gasp as he entered her. Never had he felt that he needed an orgasm like this, and barely had he penetrated Emma before he grabbed the soft globes of her ass with both hands and began thrusting into her. He was in a frenzy, desperately craving release, and moved rapidly and forcefully, slamming into his sister's depths so hard that it hurt, yet barely even being aware of the pain. Almost immediately Emma began to accentuate each of her brother's thrusts with little whimpers, soon losing balance from the sheer impact of Keith ramming himself into her, her arms folding beneath her as her entire body rocked back and forth in rhythm with the thrusts.

Past his arousal, Keith had no idea how long had passed - or even where he was - when he felt his climax approaching, and increased the force with which he slammed into his sister even further even as Emma's insides contracted in her own second orgasm of the day, and while she moaned and gasped in ecstasy, Keith entered her one final time, as deeply as he could, and came, emitting some sort of mix between a groan and a bestial growl as he emptied himself into his sister's depths. More so than ever before he felt relieved as he came and kept coming, staying at the deepest he could get the entire time while his member spewed what felt like many times the amount of semen he had ejaculated in her yesterday. It was indescribably wonderful.

"Oh God," Emma gasped into the mattress, her body having gone limp from her own orgasm already, but her ass was still held up and in place by her brother, his shaft still buried deep in her pussy. He barely even noticed her, his mind still occupied with the heavenly feeling of dumping a massive load of his sperm inside her. "Oh, oh my... that was... different from yesterday..."

Keith growled something incoherent, his jaws locked in place and his brain only gradually rebooting to process what was actually going on.

"Still good," his sister elaborated, slowly rising herself up on her hands again, though she seemed a bit movement-impaired by post-coital bliss. "But different. I think I liked yesterday better..." She looked up over her shoulder, at her brother. "Keith? Can I have my butt back?"

Part of Keith wanted to just tell her "no", and just stay exactly where he was for the rest of his life, his dick inside her pussy where it felt the best. Unfortunately more and more parts of his brain that did not occupy themselves solely with his sexual desires began functioning again, reminding him that it was not just a disembodied pussy he was inside, but that of his beloved little sister. Besides, as his orgasm receded, his erection was going flaccid quickly, and he would inevitably flop out of her anyways in a matter of seconds.

Very reluctantly Keith released Emma from his grasp, and while he allowed himself to drop back into a sitting position, Emma quickly turned onto her back again, spread her legs and angled herself to show Mike her vagina, which started leaking thick globs of cum within seconds thereof.

"Look," she encouraged the little boy, who was staring as wide-eyed as ever. She reached down and dipped her finger in the pool of whitish liquid pouring out of her, stirring it for a moment before raising it and reaching her finger even closer to Mike's face. "Do you know what that is?"

You've got to be kidding me, Keith thought, unable to speak if he had even wanted to. He still panted and perspired profusely from his orgasm, and it was only with a surge of willpower that he was even capable of sitting upright. His eyes had trouble focusing on what Emma and Mike were doing, yet he still felt that he needed to keep up with events as they occurred.

Probably unaware of his older brother's efforts, Mike simply shook his head, even as he leaned away from the sticky substance on his sister's finger in what seemed like instinctive disgust.

"It's seed, or sperm," Emma told him, surprising Keith with her insight. "It comes out of a pee-pee when it's really happy."

Keith groaned - just listening to Emma speak like that made his member throb painfully, trying to get erect again even as it had spent itself completely already.

Incapable and unwilling to keep listening to his two younger siblings discussing the mechanics of sex (mostly because of Mike - had it just been Emma, he would probably have thought it extremely hot, he figured), Keith began to redress himself without a word, trying to mentally block out what Emma and Mike were talking about for long enough to get decent. Once he was dressed, he clumsily scrambled down the ladder out of his bed, and began making his way towards the stairs with wobbly steps. He felt very sleepy right then, and had a feeling that this 'test' might actually have knocked him out entirely if he had cum just a bit harder. He was thoroughly exhausted, and thirsty. Dehydrated, even. Part of him wanted to stay and check just how much semen he had managed to shoot into her to make him feel this spent, but the part that wanted to escape the surreal lecture about sex from his ten-year-old sister to his eight-year-old brother still won out, and he continued his dizzy flight out of his room.

"Wait!" Emma's call reached Keith when he was almost at the stairs, and he stopped, turning around to see his sister half-running after him, still gloriously naked and leaking cum down her thighs, at the sight of which his penis gave an extremely painful throb, and actually managed to harden slightly. One of these days, her sheer sexiness was going to kill him.

"Listen," she told him sheepishly, wringing her hands and looking at her feet - a lethal combination of sexy nudity and cum-leaking and adorable innocence that made it virtually impossible for Keith to take his eyes off her. "I know you really didn't want to do this with Mike here, and you didn't want anyone to know, and..." She shrugged apologetically. "Thanks for doing it anyways. I really wanted this."

As if I had a choice, he thought to himself, but part of him knew that he was just rationalizing again. Promise or no promise, he could have stopped that 'test' whenever he wanted to and just walked away. He had chosen to keep his promise and stay... which was probably what Emma was trying to thank him for, he realized, suddenly touched by the gesture.

"I'll make it up to you somehow," she told him, smiling at him gratefully, Keith's eyes widening slightly at the subtle teasing tone in her voice, and with a heroic surge of effort, he felt himself getting a half erection again from just hearing this. "I promise."

Life was still good after all.