"The arc of the apex angle of an isosceles triangle is equal to one hundred eighty degrees minus the sum…"
It was all a crock of shit as far as Doug Anderson was concerned. He looked down at the rip-roaring hard-on the chick sitting directly across the aisle had raised on him. His hard cock throbbed violently between his legs, straining against the material of his tight Levi's until he thought his tipper might tear open.
Concentrating on geometry with a hot bitch, like that blonde within eyeshot was out of the question. Old man Wentzler could take his geometry bullshit and shove it all the way up his fat ass as far as Doug cared. The only triangle that occupied his horny mind at the moment was the one of curly hair that grew around the chick's cunt.
It wasn't the first time this particular blonde had raised a zipper-ripper on him in class. In fact it was becoming a daily occurrence, not that Doug had any objections to a little sexual arousal. His dick could stay as stiff as a board all day and all night, just as long as he had a nice warm pussy to sink it into whenever he felt the urge.
It didn't bother him a bit that a pretty girl was turning him on right there in the middle of class.
He wasn't the type to be embarrassed by a stiff dick, even if the whole clan saw it. What did bother him was the fact that the hot bitch responsible for his throbbing dick and aching balls was Chastity Anderson, Doug's own sister.
It wasn't that Doug saw anything morally wrong with having the hots for his sister. How could he help it? She was the sexiest fox at Alton High and everyone knew it, especially Chastity herself. She could raise a boner on a jellyfish. Doug was no jellyfish. Still, Doug found it a bit awkward to have such ball-busting desires for his own sister. Sometimes he wished Chastity had been born ugly.
Ugly she was not. She was the town's prize piece of ass. Prom the stories floating around town, it could be surmised that half the guys in the senior class had fucked Chastity and the other half wanted to in the worst possible way. Doug knew, of course, that most of the stories were stories and nothing more. He also knew from Chastity's own confessions that she got more than her share of cock. At the moment Doug couldn't help wanting to treat her to a healthy share of his own throbbing prick.
He glanced across the aisle at her. She was up to her usual tricks. She was sitting innocently enough with her long legs crossed, trying, from outward appearances at least, to understand isosceles triangles. Doug knew her well enough to know that her busy mind was on something other than geometry. He noticed soon enough that she was directing her attentions at Rick Davisson, whose cock appeared to be swelling as much as Doug's was.
It amazed Doug sometimes that Chastity always managed to turn on the object of her affections without even looking in his direction. Even in a posture of feigned innocence she radiated hot sex. Doug was only catching the fallout from her attack on his buddy Rick. He almost felt sorry for the guy who was falling under the full thrust of her attack. He fully expected to see Rick at the house that night, wanting to take Chastity out and fuck her royally. Just thinking about it made Doug's rod jerk harder in his pants.
Doug saw her cast a seductive sidelong glance in Rick's direction for the first time. Although Doug couldn't see her eyes at the moment, he guessed that she was sizing up Rick's hard-on and determining the effectiveness of her sexual onslaught. She must have been satisfied with her work, Doug surmised, because she really started pouring it on.
With a subtle yet deliberate movement she reached down and gently stroked her knee, which was already shamelessly overexposed beneath her hot-pink miniskirt. Slowly, seductively, she raised her skirt ever so slightly, exposing even more of her long, honey-tanned leg. She wriggled her ass in her seat just a bit, turning slightly toward Rick, barely acknowledging the boy's presence and the obvious sexual excitement building at his crotch. With a smile on her lovely face she sat there, her delicate hand resting on her leg, bouncing her foot lightly and watching her stud's reaction. Doug knew that Rick could now see all the way to her cunt.
It was the subtlety of Chastity's movements that Doug found so irresistible. Any loose slut, even an old whore, could fasten onto a guy mid turn him on merely by being lascivious. Chastity somehow went above and beyond simple lasciviousness. She had a mysterious way of maintaining her dignity while reducing a victim to slavery.
Chastity had developed a reputation for being loose but not cheap. It was well-known around town that she loved sex and would ball with almost any guy who met her standards. But if she were not well-treated before, during, and alter a screw, she would drop her chosen fucker like a hot potato. Everyone had to admire Chastity for her intelligence, too. There was nothing of the dumb blonde in Chastity Anderson, except when she played the part. She had the highest IQ in the school and was one class ahead of everyone else her age. Doug was hardly in her class intellectually, and he always had the strange feeling that she knew more about him than he did.
It wasn't her intelligence that Doug was thinking about at the moment. He watched her huge, perfectly formed tits rising and falling almost imperceptibly as she breathed. His captive eyes followed the curve of her boobs outlined by the tight material of her soft pink sweater. His mind flashed with images of her bared tits. Chastity was not particularly modest around the house. He had seen her naked countless times. Memories of those times haunted him as they flashed before his mind's eye.
The fullness of her beautiful ass was obvious beneath the clinging material of her miniskirt. He couldn't help wanting to run his hands along the curve of her thigh and probe between her soft, warm legs, until he found her hot cunt. The more he thought about the times he had seen her stark naked, the more he wanted to strip her right there in the middle of class. The more he drank in her perfection, the more he wanted her.
Doug was very close to his younger sister. In fact, with the possible exception of his older brother Mick, who was off in California living in a commune, he felt closer to Chastity than to anyone else, including his parents and even the chicks he fucked regularly.
Doug really didn't know what was at the bottom of the sex feeling he had for his sister, but there was no denying them. As children, he and Chastity had shared all their childhood secrets. As they had grown up and matured sexually, their secrets had gradually become more and more sexually oriented. They thought nothing of sharing accounts of their fucking and sucking experiences. They held nothing back, not even the most intimate details. Of course Doug shared stories with Mick, too, but most of what passed between brother and sister remained strictly between the two of them.
Whenever Doug heard a good story about Chastity from one of the guys at school, he couldn't rest until he had heard the story from her own lips. Surprisingly enough, the bragging of the local high-school packers turned out to be the truth or something close to it. Chastity was not afraid to use her voluptuous body unashamedly for her own sexual gratification, and Doug respected her for her free spirit just as she respected him for his.
Close though they were, their interest in each other had remained, until recently, on the level of simple conversation about their sex lives. In the past few months, however, Doug had begun to notice a definite change in their relationship.
Lately their heart-to-heart talks about fucking had begun to turn Doug on as never before. He couldn't help getting the impression that Chastity, too, was feeling something between her legs when they talked about fucking their mutual friends.
Their mutual attraction had grown too strong to deny and almost too strong to resist. As much as he wanted to fuck her, he couldn't quite bring himself to take steps that might lead to putting the prick to his own sister, even though he knew that she was open to the idea herself. Even for a young stud as oversexed and open-minded as Doug, it was difficult to seriously consider starting something with his own sister.
Doug had watched the situation developing for some time now and realized that he would have to let time and chance decide how far to go with his desires. Perhaps he had already gone too far, at Chastity's urging. It had happened the year before. It haunted him still. He couldn't help remembering the day last summer when he and Chastity had almost passed beyond the boundaries of a brother-sister relationship. Whenever he was gripped by uncontrollable fuck-feelings for her, he drifted back in his mind to that lazy weekend at Silver Lake when they had almost taken – and perhaps had taken – the fateful step.
It was the weekend of Chastity's seventeenth birthday. As usual, the Anderson, were spending the special weekend at their place at Silver Lake. Her birthday, falling as it did in the middle of July, always afforded an excellent opportunity for the family to get away from Alton and enjoy some swimming, fishing and hiking at the isolated lake.
Isolated it was. Last in the heavily wooded hills of southern Indiana, the lake was like a world apart and unaffected by civilization. The fact that Rena and Bill Anderson had managed to buy up most of the property surrounding the lake helped protect their privacy. There were only two other houses on the lake, and these were on the side opposite the Anderson cottage.
The cottage itself was really a greatly remodeled barn with the loft retained and converted into bedrooms. The loft was something like a balcony with a rustic wooden railing from which one could look down onto a large but cozy living room. Bill Anderson and his two sons had done all the carpentry work on the place, and Rena and the two girls had done the decorating. The cottage was easily large enough to accommodate several guests comfortably since there were six small bedrooms upstairs and two downstairs. Usually when the family went on these short vacations, they took some friends along. On this particular occasion, however, they were by themselves.
Doug couldn't help but feel the atmosphere of tension that fiat morning. It seemed that Chastity was behaving in a way calculated to flaunt her considerable womanly charms. Her charms were practically unavoidable, no matter how she behaved. Her act at the lake we too much for Doug and Mick to take.
Doug thought it possible that the magic of her seventeenth birthday might have gone to her head. At seventeen, she was at the height of her sexuality and couldn't help feeling it. Doug had felt the same when he had turned seventeen the year before. Fortunately, he had had Marcy Palmer on whom to work off his heightened sense of virility. Poor Chastity was in the woods all by herself with no boys except her brothers.
Everyone got up early that bright Saturday morning and started digging into a hearty breakfast, everyone except Chastity. When she finally did put in an appearance, it was a real show-stopper. She appeared leaning over the railing of the loft, wearing only a wispy negligee and a big smile. Her huge upthrust tits were clearly visible beneath the transparent negligee, as was the light shadow of cunt hair between her legs. She merely stood there looking down, until she was noticed by her mother.
Rena Anderson was accustomed to seeing her children in various states of undress. Nudity was not considered shameful in the Anderson family, as long as there was no lewd intent in the display. Rena was not much bothered by her young and lovely daughter's display.
Mrs. Anderson pointed her out to the rest of the family who immediately joined together in singing "Happy Birthday" to her. She laughed delightedly and took a few bows after the singing had stopped. Then she flew down the stairs, her arms raised and held out at her sides. Doug thought she looked like a sexy angel gliding down the stairs.
Chastity's full firm tits bounced with each step down the stairs. Her long golden hair cascaded over her delicate shoulders, framing her nearly exposed boobs like some unbelievably perfect painting come vibrantly to life. It was pretty obvious to Doug that it would be impassible to sit through breakfast without getting hard and horny over her.
Doug caught a knowing glance, from Mick that told him his brother was going to have the same problem keeping his dick down. They both wished their sister had had the decency to put something more substantial on before coming downstairs, not because there was anything wrong with her near-nudity, but became her young brothers had no defense against her charms.
Sitting there and staring at the soft warm knockers that Chastity presented that morning would be too much for any normal kid to resist, Doug knew, brother or not. Of course it hadn't occurred to Doug that he was sitting there wearing nothing but his underpants or that Mick was wearing only his pajama bottoms. It hadn't occurred to Doug that the sight of his own nearly naked body might turn Chastity on as much as hen did him.
Doug was soon forced to realized just how naked and defenseless he really was. Smiling, Chastity sat down next to him and put her warm hand on his bare leg. The touch lasted only a second or two, but the effect was powerful. It was like an electric shock to him. He almost jumped out of his chair. He hoped no one had noticed his reaction.
"Good morning, everybody! Like my birthday suit?" Chastity asked, addressing the whole family but looking straight into Doug's wide-open eyes.
"It certainly is you!" Rena laughed.
Rena's comment elicited a giggle from everyone. Doug welcomed the break in what for him was an unbearable tension.
Doug didn't know quite what was going on or why. It bothered him considerably, physically at least. It was a losing battle to keep his sensitive dick from stiffening. Chastity sat there with her warm, glowing body turned toward him just enough to give him a clear view of her full young boobs. Her defenseless brother tried desperately to concentrate on something else.
Chastity sat there with the filmy negligee gathered between her legs and pressed against her pussy. The warm, natural fragrance of her cunt wafted past Doug's nostrils. He couldn't resist her, couldn't help looking down at her crotch occasionally in an almost unconscious effort to catch a glimpse of her barely concealed pussy.
Doug looked over across the table at poor Mick, who was trying valiantly not to stare at her knockers. Even his dad seemed to be keeping his eyes on his pancakes a bit too consciously. His mother had a peculiar half-smile on her lovely, patient face. It occurred to him that she might have an idea of what the boys were going through.
"Are we all going down to the beach for a nice morning swim?" Rena asked, obviously trying to break the apparent tension.
"Sounds great, Mom," Doug replied.
"Yeah!" Mick added. "It's gettin' kinda hot in here already this mornin'!"
"Oh? I don't know about that," Chastity said, looking into Doug's eyes, "I like it hot sometimes."
"That's rather obvious this morning, Chastity," Rena said under her breath while rising from the table. "Will you help clear all this away, Dawn?"
Doug wanted desperately to get his pants on. His cock had gotten just hard enough under Chastity's influence to embarrass him if he had to get up from the table. His mother reached over his shoulder from behind to pick up his dishes. He hoped she hadn't noticed his stiff cock sticking up and making a tent in his underpants. If she did notice it, she made no sign to indicate it, unless the way she rested her hand on Doug's shoulder was a kind of sign. He felt relieved at any rate. His relief was short-lived, however. In removing the dishes, bin mother dropped a fork between his legs. No sooner had it clattered to the floor than Chastity had bent down and reached between his legs to lick it up. He pushed his chair back like a shot and sat bolt upright in his chair to avoid her accidental touch. Her arm brushed against his leg, but he was able to move quickly enough to save himself the embarrassment of having his sister feel his hard dick, a hard dick she herself had caused.
Doug decided then and there to have a talk with her as soon as possible and find out just what she was up to. He knew she was well-aware of the effect she we having on him. He also knew that deep down inside he wanted her as he had never wanted anything or anyone else in his life. Still, he felt he had to do something before things got out of hand, if they hadn't already. It sure was a strange day, Doug thought.
As soon as the dishes had been cleared away and Rena and the girls had left the roam, Doug and Mick jumped up and almost ran into the room they shared. Bill Anderson remained at the table reading his newspaper.
"Don't trip over each other," their father said, still looking at his paper.
The bays got the impression from the tone of their dad a voice that he knew what an embarrassing state they were both in. More relaxed in the relative security of their room, they changed into their trunks and discussed the situation developing with their luscious sister.
"What the hell's that sister of ours trying to do to us anyway, Doug? I know she's a hot chick and all that, but shit, man!" Mick said, shaking his shaggy head in disbelief.
"Don't know what she's doin', brother! We gotta put a fuckin' stop to it, though!" Doug replied, stepping into his swim trunks.
"If she don't turn it off real quick, I'm gonna have to find me a nice quiet corner somewhere and jack off. My own sister raisin' a hard-on on me! Fuck it! It's too much, man!" Mick said, throwing a towel over his shoulder and patting his still-swollen crotch for emphasis.
"I know what you mean! It's bad all right! I'm gonna have a talk with her. We communicate pretty good most of the time," Doug said thoughtfully.
Doug was having a hard time pulling his tight trunks up over his dick, which stuck out like a derrick.
"Good thing I'm headin' for L.A. next week, man! Can't stand much more teasin' from sister. I'm gonna get me some of them hippie chicks, man! I'm gonna leave you to take care of Chastity. Maybe you can cool her down some," Mick said, scratching his crotch and grinning from ear to ear.
"L.A. sounds good, Mick. Wish I could go with you," Doug said.
"You can! Just say the word and we both head out hitchin'!" Mick replied.
"Nah. I… I guess I'd better stay around here for a while," Doug said, thinking about Chastity and the mysterious effect she was having on him.
"Up to you, Doug," Mick said, slapping his brother on the back. "Say, man, did you notice how Dad was tryin' so hard to look cool this mornin'?"
"Sure did… Guess Chastity's gettin' to him, too. Kinda ward…" Doug mused.
"Well, bell, better go down there and take that swim. Maybe that'll cool off this whacks family of ours," Mick said, shaking his bead and closing the bedroom door behind him.
Doug stayed in his room for a while, looking down at his too-obvious hard-on. He couldn't bide a rod like that and he knew it. He would have to make the best of a difficult situation and hope that his parents and Dawn didn't notice the huge cock bulge between his legs. When he finally got up enough courage to leave the room, he did so quickly, striding into the living room to meet the rest of the family, throwing caution to the winds.
He found that the rest of the family had already left for the beach, all except Chastity, that is. She appeared at the top of the stairs again. She wasn't wearing much more than she had been wearing earlier that morning. In fact, she looked more naked in her skimpy yellow bikini than she had in her negligee. If she wore the bikini to hide her tits, ass and cunt, she had chosen the wrong garment. The top amounted to little more than a wide strip of thin yellow ribbon stretched over her tits. The ribbon, which was stretched almost to the breaking point, was just wide enough at the sides to hold her beautiful set of jugs in place. It narrowed considerably in front where it was supposed to cover her nipples, allowing the edges of her light-brown areolas to show. The bottom of her bikini was not much more substantial. It looked to Doug as if it would dissolve in the water as soon as it got wet.
Chastity raised her arms over her head and pirouetted a few times, modeling the flimsy garment for her horny brother. He couldn't help admiring her for her courage, as well as desiring her for her crotch-grabbing sexiness. As she turned on her toes, the firm flesh of her partly exposed butt quivered temptingly. Doug couldn't help wanting to run to her and reach out to cup her wantonly exposed boobs in his strong hands. He couldn't help wanting to hug her in a tight love-grip and slip his hand into her bikini bottom to feel her soft warm silken ass.
As he watched her, he felt his resistance melting away. Obviously pleased by his rapt attention, she stopped turning on her toes and raised one leg, crooking it playfully in the manner of an old-fashioned pin-up model. Doug's eyes fell between her legs, riveted to the slight swelling of her barely covered cunt mound. His eyes tore the cloth away and feasted on the imagined snatch beneath.
"Like my new bikini, Dougie?" she breathed seductively.
Doug couldn't say a word in reply. He became painfully conscious of the hard swelling of his excited prick. He realized now that she had to have caught an eyeful of his cock. He suddenly decided to shuck the whole thing and let his hot-used sister have her fun. She was too much for him.
"Okay, you win," Doug sighed, putting his hands on his hips and standing before her with his cock bulging in his trunks.
"I win? Is that the prize, big brother?" she giggled, pointing to his jerking cock.
"You wouldn't know what to do with it ill gave it to you," Doug teased, knowing better.
"Don't be so sure Dougie," she retorted. "I've won contests like this before."
With that she ran the rest of the way down the stairs and breezed by her horny brother, kissing him lightly on the cheek as she passed through the door.
Doug stood by himself for a minute or two, thinking the situation over, or attempting to think it over. He realized soon enough that there was nothing to think about at all, at least nothing that he was capable of thinking about now. He was beyond thinking.
Standing in the doorway, Doug saw Chastity off at some distance, half-running down the winding path to the beach. Even at that distance her ass looked beautiful in the morning light.
Doug took a deep breath, stretching his muscles as he drank in the perfumed morning air. He felt strong, virile, and very much alive. There was something strangely invigorating about the air on that particular morning. It seemed that something was stirring inside him, struggling to be released. The natural elements seemed to be working together to arouse feelings for his sister that were new to him, new and strange. He started walking after her but soon broke into a run.
Chastity either sensed that he was running after her or heard his footfalls in the grass. She suddenly increased her pace. When she reached the foot of the high bill overlooking the lake, she broke from the path and headed toward a grove of trees. Doug half expected her to head for that grove since she had told him that it was a favorite retreat of hers.
A gentle breeze canted the sound of her intoxicating laughter to Doug's ears as she disappeared into the heavy grove of poplars. Following her into the grove, it occurred to him that he had never been there with her before. He was struck, even in his excited state, by the sense of peace that pervaded the grove. He was struck even harder when he caught sight of Chastity again.
There she stood in all her wildly exciting sexiness, leaning against a young poplar tree, breathing heavily after her long run. Her boobs were heaving with each breath. Her golden hair was wind-blown and her gentle, lightly tanned cheeks were barely glistening with the hint of perspiration. She appeared to him as the perfect vision of a sex-crazed sex-goddess.
The boy could control himself no longer. He stood feasting his eyes on her. His throbbing rod and lust-drunk brain controlled his every action from that moment. He forgot his relationship with his sister in the eyes of society and abandoned himself to the urgency of his passion. He sensed that Chastity was ready for anything that might happen between them.
He walked toward her with a mad grin on his handsome face and a hot hard-on jerking between his legs. She advanced to meet him, her breathing slower now, her mysterious green eyes lighting up with a strange inner glow, as if they reflected the fires of the lust burning deep within her. They both stopped a foot or so apart and looked deep into each other's eyes.
Doug reached out and touched Chastity's soft, smooth, unblemished cheek, his fingers trembling slightly. Then his hand moved slowly downward, down her neck to rest on her delicate shoulder. He looked deep into her eyes while he felt the satin smoothness of her skin. Nowhere in her eyes was there a warning to stop his explorations.
Doug thought his heart might stop when he finally brought himself to move his eager yet nervous hand from his sister's shoulder to her tit.
He had felt the offered tits of more girls than most young men and was known around town as an experienced fucker. Yet this first exploration of his daughter's body seemed more exciting than the first time he had held a boob in his hand.
The unavoidable sense of taboo in what he was doing seemed only to increase his horniness and excitement. He knew tat Chastity felt the same. He reached out with his other hand and cradled her other warm jug. Kneading the tit flesh in his hands, he managed ever so slowly to slip his fingers under the ribbon-like bikini top that covered her knockers. With little difficulty he slipped the ribbon over her hardening nipples, exposing them completely to his gaze. Her big boobs suddenly exploded out of her garment, more than filling Doug's large hands with tingling feminine flesh. Chastity trembled from head to toe, more in excitement than in fear. Doug heard the sharp intake of her breath when she felt his hands on her risked tits.
Doug bent down and touched his lips to one of her erect nipples, not in a full kiss but in a lip caress. He looked up into her eyes again to see if she fully accepted what he was doing to her. He saw that she had no objections. Feeling reassured, he took her nipple into his mouth and pressed it between his lips. He let his teeth scrape very gently against the firm point of her hard nipple. She trembled again when he licked her tits with his eager tongue. Then he began to suck her tit gently, all the while kneading her other boob with his free hand. While he sucked her nipple, he held the heavy jug in his hand, moving his fingers against the underside in a massaging motion.
He began pinching the other nipple between his fingers, twisting the hard point of it just enough for her to feel the sensation. She began to writhe in pleasant agony, thrusting her naked boots toward him. He pulled his wet mouth away from her tit. Her nipple popped out with a loud sucking sound. He started planting hot wet kisses all over her other tit.
Chastity had remained relatively passive until now. She could control herself no longer. She reached out and rubbed her hand over her brother's bulging crotch. With all her fucking experience, she had never felt such a huge hard dick as Doug's. Just feeling his big prick pounding inside his tight trunks made her cunt gush. The fact that the big dick belonged to her brother made it the mast beautiful thing in the world to her.
She pressed herself close to him, hugging him to her with her free hand. Doug responded in kind, wrapping both arms around her and drawing her hot vibrant body to him. Her boots crushed against his muscular chest. She let her hand slip down inside his trunks, feeling the muscular smoothness of his ass.
Doug's busy hand went to her sides, slipping beneath the thin material of her bikini, easing the bottom down around her thighs. He didn't bother to untie the laces that held the bothersome thing around her thighs. His fingers found their way behind her, insinuating themselves between the halves of her butt. He felt the downy hair between the full, firm globes of her buttcheeks, soft, delicate, almost unnoticeable.
Chastity's ass was unbelievably smooth to his touch. He ran his fingers up and down the crack of her ass. He felt her clench her buttcheeks, trapping his fingers there for a second or two. All the while Chastity was exploring her brother's ass in much the same way, having managed to push his trunks down until they were held up only by the unyielding stiffness of his hard tool.
Their hot lips met for the first time. Their tongues touched together, their saliva mingling for the first time in a frenzied soul-kiss. Doug tickled the roof of his sister's mouth with his tongue. She responded by thrusting her own tongue deep into his throat, at the same time squeezing his butt with new passion.
Doug had managed to push his sister's bikini down to her feet by now. She was standing there with her bikini top hanging down beneath her tits, still fastened behind her back. Her ass and cunt were exposed now to Doug's exploring fingers. He lost no time in finding her hot twat. He went slowly at first, being careful not to do anything that might shatter the atmosphere of abandoned lust that had somehow developed in the grove.
Doug's fingers stopped when they reached the relatively rough curly hair of Chastity's cunt. He moved deliberately now that her womanly treasure was almost his. His fingers caressed the smoothness of the skin just above her pussy triangle, inching down into the hair above her hot cunt. They continued to kiss deeply, unaware of the world outside the grove.
Doug's fingers traveled down through Chastity's twat hair until he could feel the incredible softness of her trembling cuntlips. Her pussy felt hot and moist to his touch. He knew now that she was lost in the heat of her passion, her cunt dripping hot juice. He felt the slippery secretions of her box on the tips of his fingers as he massaged her outer cuntlips. He was just ready to open the lips of her wet cunt when their peace was cruelly shattered.
Seemingly from a remote world, from the world tat had become nonexistent for them, came a call that froze them both, even in the intense heat of their wild passion. It was their mother's voice.
Something akin to terror gripped tern both when they were forced to realize once again that they were fruit of the same womb, that their sexual explorations were impossible, taboo.
Their mother's voice was loud and clear. She was nearby and getting closer by the minute.
Their eyes met in a strange confrontation. They had both wanted each other and probably would have gone all the way with their lust had they not been interrupted. They could see in each other's eyes no sense of shame, only a sad understanding that they should not let it happen again. They agreed silently to discuss their difficult situation later. Their silent communication passed in a flash.
Doug somehow managed to get control of himself and struggled to pull up his trunks. When he had restored himself to a fairly presentable state, he hurried to help Chastity. She had a great deal of difficulty forcing her tits back into her bikini without untying it, which was out of the question due to the rush. Doug got behind her and pulled her bikini bottom back up and adjusted it as well as he could. When she finally got her huge knockers back where they belonged, they were red in places from her brother's rough fondling and pinching. Doug's hard-on had almost gone down in the confusion, although enough of a bulge remained in his trunks to cause him considerable embarrassment if his mother saw it.
The pair followed the path out of the grove and met their mother nearby. They both realized that no amount of acting could hide their sheepish expressions. They smiled as innocently possible under the circumstances, which were anything but innocent. Chastity hoped her mother wouldn't see the red places on her tits and the thick plug of cock beneath her brother's trunks.
"And where have you two been? I've been hunting all over for you. Aren't you going for a swim with the rest of us?" Rena asked with a trace of something sly in her tone.
"Uh… yeah. Uh… Chastity was just showin' me her favorite… uh… retreat," Doug stumbled. "Nice place to… uh… relax."
"You don't seem very relaxed to me, Doug. In fact you seem a bit nervous. You, too, Chastity," Rena said, still with an odd tone in her voice that neither Doug nor Chastity could quite pin down although they both noticed it.
"I feel just fine, Mother! Really I do! Don't you feel just fine, too, Doug?" Chastity replied, staring at her mother's ear in an effort to avoid her glittering eyes.
"Sure! Sure!" Doug said huskily, looking down at his feet.
Doug felt as stupid as hell standing there pretending that nothing had passed between Chastity and him. He also felt embarrassed about having to face his mother with the half-stiff remains of a hard-on her own daughter had raised on him. He felt naked. He had to say or do something to break the tension that as oppressive at the moment.
"Last one in's a rotten turnip!" he shouted, feeling even more ridiculous than before.
He was at least successful in giving everyone a chance to get out of the embarrassing situation. At the moment he didn't give a damn about swimming and he knew that it was glaringly obvious. He hoped his mother hadn't noticed his swollen cock.
Rena turned abruptly and started running down the path to the lake. Doug looked at Chastity with the expectation of seeing in her eyes some profound explanation of what had just happened between them. He found none. She merely looked down, shook her head and looked a bit bewildered. They ran side by side, avoiding each other's eyes and feeling suddenly very far apart.
They had managed to talk the problem over that very evening, sitting on the end of the old pier. It had been uncomfortable talking about what had happened so soon after the fact. As Doug thought about the conversation, as he often did, he realized that nothing had been resolved. They had promised never to allow themselves to feel ashamed of what they had done, or almost done. They had also promised not to let it happen again, not because they thought it was wrong but because the results of such a relationship could prove inconvenient for everyone concerned. They both realized, although neither said so, that promises made by moonlight are easily broken.