Her words were said with increasing urgency and need, and Aaron found himself responding instinctively. He growled as he crawled to his sister, his swollen cock bobbing beneath him with each awkward stride. He slid his torso over Jessica’s back, making her hiss with pleasure, and his dick slid home in her valley almost without trying. “Yes!” she whimpered when the tip nestled between her lips. Aaron kissed her neck and ears for a few moments before straightening up and thrusting himself deeper into his sister. Jessica let out a yelp of pleasure and loudly cried, “More!”
Aaron obliged right willingly, but soon lost his rhythm and nearly stopped fucking Jess from a desire to laugh instead. With each forward plunge, Jessica yelled, “Yep!” He couldn’t tell if she was doing it on purpose or if it was some weird combination of wanting to scream “Yes!” getting crossed with a desire to sound animalistic during sex and yipping or barking with pleasure. Either way, it was a little off-putting at first, but he was too horny to stop entirely, and his sister was equally demanding, so they soon resumed their doggy-style fuck with Jessica yowling, “Yep! Yep! Yep! Yep!”
Jess was the first to start her orgasm, which may have been triggered when Aaron put his hands on her collarbone and gripped her throat firmly but gently. He didn’t apply any real pressure, but it was intended as a sign of possessiveness and dominance, and she seemed to love it. She began howling when she came, and her pussy clenched him so tightly that Aaron joined in before she finished, which had the effect of either intensifying or lengthening her ongoing climax. He felt a gush of liquid flowing out around his cock and guessed that his sister had just squirted a little bit.
Jessica’s front end slumped into the dirt as her arms seemed too weak to support her, and her lower body might have followed if Aaron hadn’t been propping it up while he caught his own breath. They rested for a minute before she wiggled her hips forward awkwardly, trying to get free without going any closer to the fire. Aaron moved back enough to make it easier, then watched in amusement when his sister flopped around a bit on the ground, trying to get comfortable. She ended up on her side, with her back to the fire and her face, currently red from a mix of sexual exhaustion and the fire, towards her brother. He could see that dust was clinging to her sweaty breasts where she had lain on the ground and teased, “You’re something of a hot mess right now, huh?
Ignoring the pointless question, Jess asked incisively, “How is this so amazing? It feels like we’re fucking porn stars or sex gods or something. That shouldn’t be possible for a couple of dorky virgins, or almost-virgins.”
Aaron was a little discomfited, not sure how to respond in a way that would be believable and not incriminating. She cut him off before he could attempt a story, stating, “I’m not asking for an explanation. I can’t imagine you have one anyway, especially not with that baffled, bewildered look you get whenever you’ve been caught being less sneaky than you think.” Aaron choked a little with indignation, and his sputtering, stuttering attempt to defend himself only made his sister laugh.
Jessica got to her hands and knees and crawled toward her petulant brother, pausing briefly to sniff the wet ground where her juices had spilled. She hugged Aaron from the side and said, “Don’t pout! I still love you, even if you sold your soul for sexual prowess.” She started kissing his jaw and he accepted the invitation when she got to his mouth, letting his tension and anxiety bleed away in her caresses. Still, he couldn’t help being a little worried at how insightful Jessica was, and if she knew more than she was letting on.
(Sunday Morning)
It was while blowing Aaron and swallowing his delicious jizz that Jessica started to seriously consider magic, or technology that was indistinguishable from it, as a remotely possible explanation for everything that had happened in the last month or so. She’d gone from having a pretty normal sibling relationship with Aaron to being wildly in love with him, not to mention an almost insatiable lust. Objectively, it seemed ridiculous that such a thing could have happened, or that it would keep happening, and be so amazing the entire time. The relative lack of severe consequences, at least so far, seemed suspicious.
“Maybe I’m just looking a gift horse in the mouth?” she asked herself as she swished Aaron’s seed around with her tongue, savoring the salty flavor, as she shivered with her own climax from Aaron’s increasingly talented tongue. “I mean, it’s never been bad with him, but aside from the actual fucking, we’ve both gotten better with repetition and learning each other’s buttons,” she considered. “Maybe it really was just all the build-up and anticipation and naughtiness of the taboo that made fucking so transcendent.”
If it hadn’t been for Aaron’s somewhat guilty expression at her idle commentary about the improbability of their expertise, Jess thought she’d have forgotten about the idea already and just been happy for the weird quirk of fate that had made a brother and sister so amazingly sexually complementary. Still, the idea that he’d sold his soul or hypnotized her or something was so far-fetched that it didn’t merit serious contemplation. Setting things like mind control aside for the moment, what might he have to be guilty about, other than being an incestuous pervert?
Frowning slightly as she crawled back into the tent for more water, Jessica paused to consider if Aaron’s guilt might have been nothing more than lingering shame at having his best sex with his little sister, if not exactly his first sex. He’d claimed to have lost his virginity with a girl his freshman year at the community college, but he was so reluctant to discuss the matter that she hadn’t pried. Possibly he’d been making it up and also lost his V-card last night, and his awkwardness was from her seeming to call him out on that.
“Do you want to have breakfast here or wait until we get home?” Aaron asked, interrupting her musings.
“Maybe just a little snack before we pack up,” Jessica said. “Mom usually makes a big breakfast on Sundays and I’m feeling exceptionally hungry this morning.”
Aaron smirked and said, “I bet you are. We’ve been exerting ourselves and as far as I can tell, the only thing you’ve eaten since we left for the prom yesterday evening is some punch and cookies, a breath mint or two, and a few loads of cum.”
Jess stuck out her tongue before winking and taking another drink of water. The reminder of her desire for Aaron’s semen sent her off on another wild goose chase of hypotheses. Thinking back, the whole crazy ride they’d been on recently could possibly be traced back to the morning she’d found herself inexplicably fascinated with her brother’s dirty boxers. The smell of them had been intoxicating, and even now the memory of that first whiff kindled a spark of desire.
It seemed unlikely that Aaron had simply woke up one morning smelling like sex incarnate. Was it something he ate? Also improbable, Jess decided, for a variety of reasons. Perhaps he had drugged her? Not impossible, she reasoned, but it would have been pretty difficult to do once, let alone however many times it would have to be administered whenever the effects wore off. “If drugs are involved, he must be taking them himself,” she concluded, “And they somehow make him almost irresistible to me.”
“You look very focused right now, Jess,” said Aaron, with a twinge of anxiety in his voice. “Maybe we should just pack up and head home now? Especially if you’re daydreaming about eggs,” he concluded, smiling tentatively at his attempted levity.
His words triggered another brief cascade of worry in Jessica, as eggs made her think of pregnancy and her cry to be bred, however impossible that was in reality. Yet another bizarre fetish I’ve discovered recently, she thought, but said out loud, “Yeah, let’s break camp. I like the way we smell all covered with each other’s scent, but we also smell like woodsmoke and are covered in dirt. Camping is nice for privacy and a change of scenery, but I want a bath and a coffee!”
~~
Aaron found himself repeatedly distracted by Jessica’s apparent desire to stay naked as long or as much as possible. She didn’t put on a stitch of clothing the entire time they packed up their camp and reloaded the car. She seemed more introspective than usual, however, and he was worried that her suspicions might still be running around in her head. She hadn’t stopped acting on his commands, and it was hard to guess if that tended to support or refute whatever ideas she’d concocted to explain whatever was bothering her. He noted that the first article she put on was the velvet choker he’d gifted her, followed by a T-shirt and skirt, sans any underwear, so for now at least it seemed like she wasn’t rejecting her programming, even if she had a vague notion that she had been programmed.
Their parents seemed pretty oblivious when they got home, and Aaron made a mental note to let the sleeping bags air out before he put them back in the closet, lest any odors or stains give them away. Jessica went to take a shower and Aaron went up to his room and stared at his phone, torn with indecision. He wasn’t prepared to give up his sister’s love, not after the night they’d shared, and the best thing to do might be to use the ADMIN app to squelch whatever suspicions she might have about him. Anxiety about unintended consequences held him back. He recalled the potentially disastrous scene at dinner where she’d acted like an animal thanks to his vaguely worded command.
“Maybe if I knew exactly what she was thinking I’d risk it,” he said quietly to himself, staring at the screen. “But anything broad enough to work would almost certainly do other things I can’t anticipate. Maybe I should just force her to tell me what’s bothering her?” Aaron pondered that idea for a while as well before finally discarding it. He still had some scruples left, it seemed, insofar as there were certain things he wasn’t willing to force Jessica to do. Part of him was angry at his conscience for drawing a line in the sand, as it seemed ridiculous that the angel on his shoulder was apparently fine with twisting his sister until she was his pregnant sex pet, but put a hard stop on making her confess her worries to him.
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