WICKed Hormones Ch. 15

"Okay..." Jacob agreed, staring back into his sister's beautiful, green eyes. He felt relieved to notice the disturbingly furious glare that Rachel had displayed earlier, which so cowered him, had now receded into a combined look of curiosity and mischief. "Where do you want me to start?"

Rachel leaned back a little and replied with a slight chuckle, "Well, squirt, just like any good story...start from the very beginning, of course."

As he slowly resumed stroking his aching cock, Jacob did just as Rachel requested. He recounted in full the complete tale of how their Mother had first commenced 'helping' him with his unfortunate 'condition'. From memory, the teenager described each sinful exploit in great detail, starting from the day when his straitlaced Mother had first reluctantly given him a handjob in his bedroom, all the way up to their illicit shower scene which Rachel had stumbled upon earlier that morning.

Rachel was utterly flabbergasted to hear how their heretofore squeaky-clean Mom had 'relieved' Jacob with a blowjob inside a fitting room at the local mall, as well as their wicked tryst which had taken place in the church basement nursery during the annual rummage sale. She was shocked beyond belief when her younger sibling recounted all the previous times when he had fucked their loving Mother, often from behind: in the laundry room right before she took him to school, and their first time in the shower. Each salacious anecdote seemed to top the next, such as the time when Jacob had pounded Karen in her bikini as she was bent over the kitchen sink, whilst they watched her clueless husband blissfully working away in the backyard.

However, Rachel's arousal spiked off the charts when Jacob recited the sinfully depraved events that had taken place the previous Saturday night at the hotel in Atlanta. Her brother spared her none of the raunchy details: From how Karen had given him the wrong medication to how, in performance of her 'motherly duties', Karen had finally fully surrendered to her primal desires and had 'helped' Jacob again and again, before they both finally passed out from sheer and utter exhaustion. The wicked thought of her prim and proper mother, Karen Mitchell, using her beautiful mouth and curvaceous, MILF body to desperately drain her own son's bloated testicles six times during a single night, all while her inebriated dad slept cluelessly mere feet away, caused Rachel's naked vagina to literally gush with excitement. It took every bit of self-control for the horny big sister not to jump her little brother then and there.

Somehow, over time and without thinking, Rachel found herself taking over for Jacob's ministrations. Her left hand slowly pumped up and down her little brother's throbbing penis, causing more of his sticky precum to bubble from its tip, until it trickled down his veiny shaft and collected on her tightly-grasping fingers. As Rachel continued to leisurely jack off her baby brother, she inquired, "So, answer me something else, squirt...what can you tell me about Mom's breasts?"

"What do you mean?" Jacob responded absentmindedly. His attention was now solely focused on Rachel's soft, manicured hand as it made the long, slow trip up and down his rigid stalk of flesh. The wedding bands on her ring finger became increasingly soiled from the pearly beads of his precum dribbling lewdly onto her sensuously slender digits.

Rachel paused her handjob to get Jacob's attention and replied, "C'mon Jake...don't try and play dumb with me! I saw what happened in the shower this morning. Her big, bouncing tits were squirting breastmilk all over the place. How is that even possible?!" Rachel then asked in a curious whisper, "She-- she isn't pregnant...is she??"

Jacob looked up into his sister's green eyes and replied emphatically, shaking his head, "NO! I mean...no, she's not pregnant. At least, not that I'm aware of..." The teenager stopped short of revealing the fact to his sister that, until recently, he was usually obliged to wear a condom whenever he and his Mother engaged in sexual intercourse...normally. He did not want to put the notion into Rachel's head, which could result in her requiring him to use the awful things with her, too.

Rachel resumed her languid handjob and concurred, "No? Well, hopefully you're right about that. From what I remember, she's been taking birth control for years now."

Jacob shrugged since he pretty much assumed the same as well, despite the fact that Karen had often warned him at first about the risk of him getting her pregnant if he came inside of her. Promises aside, he thought it wise if Rachel wasn't divulged of that particular detail, and did his best to avoid the issue. Who knew how his sister would react had he told her that not only that morning, but more often than not these days, he was cumming inside of their Mother? Rachel for sure didn't need to know how he recently noticed that he was cumming much harder, and pumping much bigger and thicker loads, whenever he knew he was gonna do it inside of his Mother...and that Karen also now seemed to be getting more and more into it. "Maybe that's why her boobs are shooting a lot more milk now?" Jacob mused.

Thankfully, his curious sister moved on with her intrigued inquisition, "So, if Mom's not pregnant, then how in the world can she be lactating? Has she been doing that the whole time?"

Jacob shook his head, "No...at least not in the beginning. It started not long after her boobs started getting bigger, and it seems to happen now whenever I-- she cums really hard. At first, it was just small spurts here and there, but over time the frequency and volume have increased quite a bit...as you saw earlier in the shower." The teenager then added, "According to Ms. Turner, the lactating seems to be another weird side effect of the WICK-Tropin hormone."

Rachel glanced down at her own chemically-enhanced boobs tucked away underneath her cotton dress. She instantly recalled how her previously youthful breasts had suddenly and without warning expanded an entire cup size not long after she'd begun ingesting Jacob's hormone-laced semen. Looking back to her younger brother, Rachel asked, slightly concerned, "My tits got bigger too...remember? Does that mean mine could start doing that?"

Surprisingly, the older sister didn't feel petrified with fear about the possibility. After all, from the earlier expression on her Mother's face, Karen seemed to greatly enjoy the rather uncontrollable experience. She then wondered if the same thing did happen to occur to her, how Scott would react should her inflated tits all of a sudden begin to express breastmilk whenever she experienced an orgasm. Shaking her head incredulously at the prospect, Rachel reminded herself that since her husband was a typical guy...more than likely, he'd love it.

Jacob shrugged as he answered Rachel's question, "Not sure...I mean, it's possible." He then added, "From what I've been told enlarged breasts, heightened arousal, and extremely powerful orgasms seem to be quite common. However, some of the other side effects and their severity can differ from woman to woman."

"Like what?" Rachel asked with a hint of suspicion.

"Well..." Jacob began as he leaned back against the headboard. "Some women, like Mom, for instance, begin to lactate. Others can experience a combination of side-effects like enhanced sensitivity, squirting orgasms, multiple births, and in some cases enlargement of other...body parts."

Rachel furrowed her brow, "Which body parts?"

"The clit, mainly," Jacob replied.

"Really?" Rachel whispered in response.

Jacob nodded and added, "Yeah...I overheard Ms. Turner tell Mom all about this unfortunate woman up in Roswell. It seems the hormones caused her clit to grow three times its normal size, so that it eventually resembled a miniature penis."

Rachel's eyes widened, and she gasped. "Three times?!?"

"Uh-huh." Jacob nodded again. "Apparently, she couldn't even walk normally without getting constantly turned on because it got so sensitive. According to Ms. Turner, the lady had to stop wearing panties altogether because the fabric rubbing against her pussy was keeping her in a continuous state of arousal."

Rachel suddenly stopped stroking her brother's throbbing cock. "You've got to be kidding!"

Jacob shook his head. "I heard the lady got so frustrated, that one day she lost control and ended up having sex with her neighbor's teenaged son."

"No way!" Rachel softly exclaimed, as she resumed casually jacking off her brother.

"That's not the worst of it!" Jacob said with a chuckle. "The woman's poor husband just happened to come home early that same day from work to surprise her and take her out for her birthday. Ironically, he's the one who got a big surprise-- when he walked in to find his wife butt-ass naked, bent over their dining room table, and getting plowed from behind by the same kid who'd just finished mowing their lawn!"

"Oh, my God!" Rachel whispered. "What ended up happening to them?"

Jacob shrugged his shoulders. "Not sure about the neighbor's kid, but according to Ms. Turner, the married couple is currently seeing a marriage counselor. The wife feels horrible and swears up and down that she only slipped up due to the WICK-Tropin hormone's side effects of enlarging her clit and causing her to have uncontrollable lust."

"Holy shit...that's crazy!" Rachel mumbled in amazement. She suddenly became very self-conscious of her own little 'magic button', even though, thankfully it hadn't become abnormally-enlarged yet, like that of the poor wife in Jacob's story. All the sex talk, however, whilst she continued to breathe in her brother's pheromones, did seem to have Rachel's clit buzzing like there was no tomorrow. Her leaking vagina had become quite a swampy mess and was absolutely begging for attention.

Rachel glanced at the alarm clock on Scott's nightstand and noticed that the afternoon was quickly slipping away. Releasing her grip on Jacob's cock, she stood up from the bed, determined to make the most of the time that she and her younger brother had left before she needed to get him back to their parent's house. Motioning with her hand, she instructed Jacob, "Scooch down, and lay flat on your back."

Jacob immediately complied with his sister's request. Once in the proper position, he asked with hopeful curiosity, "Okay...now what?"

As she took off her thin cotton dress, Rachel replied, "Well, earlier...I believe you'd asked how you could make it up to me?"

Seeing Rachel's near-naked body caused Jacob's pulse to quicken. He instinctively took a hold of his raging erection and distractedly confirmed, "Yeah...I sure did."

After draping her dress onto the back of a nearby chair, Rachel reached behind her back and began to unfasten the hooks of her bright, yellow demi-bra. Looking back at her brother, she added, "So, I guess now's as good a time as any to start...don't ya think?" She then dropped the sexy undergarment on top of her discarded dress and stood before her baby brother as naked as the day she was born.

Even though he had seen Rachel naked several times by now, Jacob's eyes still widened with an appreciative fascination. Her beautiful, former-cheerleader body was still textbook perfection: flawless skin, long, shapely legs, curvy hips, a flat and taut stomach. Topping it all off, she now sported chemically-enhanced, rounded D-cup tits which proudly defied gravity and sat high and perky atop her chest. If he hadn't known any better, Jacob could swear his older sibling wasn't at all human but was actually created in some secret laboratory...like the ones he read about in his sci-fi comic books.

Jacob couldn't help but smile as his gorgeous sister got back onto the bed and began to climb on top of him. His eyes were drawn to the shiny, golden cross pendant swinging from her neck, which glimmered each time it was hit by the rays of afternoon sun filtering in through the window. With eager anticipation, Jacob suddenly felt his cock twitch at the thought of being balls-deep in his third different pussy of the past two days. He was definitely on a roll!

However, Jacob was a bit confused when, instead of straddling him 'cowgirl' style as he expected, Rachel swung her leg around and mounted him in the opposite direction. As he lay there, his sister crawled backward on her hands and knees until her hairless vagina was directly above his face. The sweet and pungent aroma emanating from his sister's dripping, wet snatch entered his lungs and caused a dirty thrill to race throughout his skinny, teenaged body.

Rachel took a hold of Jacob's towering erection and began slowly dragging her pink tongue along the slick dome and piss-slit of his weeping cock. After swallowing its syrupy discharge, she noted casually, "Mom told me on the phone earlier that we're gonna have Mexican food for dinner tonight."

Somewhat perplexed by Rachel's out-of-the-blue comment about that evening's meal, Jacob replied with a hint of confusion, "Um, yeah...that was the plan anyway. In fact, it was sorta my idea."

"Oh, really now?" Rachel quipped, as she widened her knees further apart, bringing her dripping-wet vagina to within inches of Jacob's face and giving him a direct view of the glistening inner folds of her yearning sex. "Well, could I perhaps interest you in an appetizer?" she added with a giggle. Before giving him a chance to reply, the horny sister dropped her hips and planted her saturated pussy squarely onto her brother's lips. She then wrapped her sucking mouth around Jacob's tasty meat stick, and the two of them proceeded to commence with a sensuous, incestuous sibling sixty-nine.

"Mmmmmmmm..." Rachel moaned from the pleasure of Jacob's tongue darting in between her tender folds and sliding across her engorged clit. She couldn't help but praise herself for having taught him this invaluable 'life skill'. The young wife hated to admit it, but her inexperienced baby brother was definitely better at the art of cunnilingus than even her loving husband. She then raised her head and licked the gooey mess of spit and Jacob's precum from her lips. "That's it...just like I taught you!" she grunted, rotating her curvy hips and smearing more of her sweet, womanly essence all over Jacob's face.

With her body vibrating from the hormone's effects, it took little time for the aroused housewife to reach her first climax of the afternoon. "Oh yeah...like that...eat it...eat your big sister's taco...you nasty...little...MOTHER...FUCKER!!!" Rachel closed her eyes and cried out, "AAAAAAHHHHHHHHH!!!!!" as her pussy exploded in orgasm.

Jacob tightened his grip on Rachel's shapely thighs as he vigorously licked his sister's climaxing vagina. He himself began to groan as his lapping tongue collected the tasty treat of Rachel's sweet and creamy 'taco' sauce that was dripping from her quivering quim.

While Rachel recovered from her toe-curling orgasm, she resumed licking and sucking on her brother's massive cock. She also noticed Jacob's attention to her still-tingling pussy had waned. Removing her mouth from the tip of his pulsing manhood, she looked over her shoulder back towards Jacob and asked, "What's going on? Why'd you stop?"

Jacob strained his neck, trying to look at Rachel's face. However, it was mostly blocked by her big, beautiful butt staring him straight in the face. "My jaw hurts...I think I'm gonna need a break."

Rachel scoffed. "A break?!"

Jacob nodded, "Yeah...just a couple of minutes."

Rachel tightened her grip on Jacob's veiny shaft and resumed jerking him off. "C'mon, squirt....we haven't got all day! Remember...I still have to 'pick you up from school' at 3:30, and then take you home."

Glancing over at the alarm clock on the nightstand, Jacob saw that they still had plenty of time. However, as much as he enjoyed feasting on Rachel's tasty, married pussy, he was very eager to move on to the next course. Namely, that of stirring up his big sister's sweet honey pot with his big, thick meat stick that now just happened to be aching much more than his jaw. He offered optimistically, "Well, if you're worried about time, then we could always move on to something else..."

Rachel scoffed and shook her head, "Nuh-huh...I don't think so!" Even though she couldn't see the expression on Jacob's face, she could sense from his cock her brother's disappointment. She continued, "Besides, as I seem to recall, you said you wanted to start making it up to me...right?"

"Well...yeah...of course I did..." Jacob answered while looking up at his beautiful sister's hairless crotch that was hovering just above him. He couldn't help but notice a clear droplet of Rachel's 'excitement' dangling from the tender folds of her aroused vagina.

"Okay then..." Rachel quickly cut him off. She then began to sway her hips from side to side and added, "So go ahead, little brother...stop dawdling around and get back to work!" At that very moment, the clinging drop surrendered its hold and fell, landing on Jacob's upper lip.

A while later, Rachel remained on all fours above Jacob. Her right hand held onto her brother's cock with a death grip as she quickly approached her third climax of the afternoon. She called out words of encouragement to her little brother as the orgasmic wave continued to swell, "Oh yeah, squirt...right there...that's the spot!!" She then began to grind her hairless crotch harder against Jacob's face.

Jacob found it somewhat difficult to breathe, with his mouth tightly sealed against Rachel's ripe and juicy twat and his nose buried inside the deep cavern in between her cushiony buttcheeks. However, he found the heady combination of his sister's natural, musky scent and the coconut-sandalwood body wash she'd used in the shower that morning to be downright intoxicating.

On top of his lack of oxygen and the possibility of passing out, Jacob's jaw ached fiercely, and his tongue began to tire. However, like a man hell-bent on accomplishing a mission, he powered through his discomfort, determined to satisfy his sister's ravenous need and appetite...and hopefully solidify his place back in her good graces.

Sliding his hands up from Rachel's thighs to her flawless rear end, Jacob dug his fingers into the firm, yet yielding, flesh of her round and meaty bottom. He then latched on to her engorged clitoris with his lips and began sucking on his sister's juicy cunt as if it were a sun-ripened Georgia peach.

The effects were instant and intense.

"Ohhhh...SHIT!!!" Rachel called out, as her baby brother feasted on her hairless twat. She couldn't help but squirm around on top of Jacob as he ate her out as if he were starving for pussy. "Oh yeah...suck it! Suck on my clit!!" she commanded with a growl, as she ground her hips down even harder, totally cutting off Jacob's air supply.

Undaunted by his inability to breathe, Jacob continued with an all-out oral assault on his sister's 'magic button', sending her into a screaming climax. Rachel threw her head back and called out, "Oh yes! Eat it...you little twerp!! Ohhhh yeeesssss!!! Eat meeee!!! Ohhhhhh...FFFFUUUUUUCCCCKKKKKK!!!!!"

Even though he was bordering on asphyxiation, Jacob was still lucid enough to lap up all the sweet girl cream dripping endlessly from the lips of his sister's quivering pussy.

Moments later, both siblings were breathing heavily. Rachel fought to catch her breath after experiencing a fourth, body-shaking climax brought on by her brother's talented mouth. Jacob, on the other hand, was struggling to refill his lungs due to the fact that he'd been virtually suffocated by his married sister's big, beautifully-round butt. However, he dared not complain, because the teenager could easily think of much worse ways for a guy to depart this world for the hereafter than to die with his face buried in a gorgeous woman's cushiony backside...especially his hot, ex-cheerleader sister's!