EVERYONE IN THIS STORY IS AT LEAST 18 YEARS OLD OR OLDER.

Donnie Sir William Rowan Hamilton is the typical annoying teenaged little sidekick. There was just two eld divergence in the long time of him and his big sister, Lucy. The immature way he acted, one would retrieve there was much Thomas More of an age gap. She tolerated Donnie's juvenile behavior because she loved him. She learned to put up with his antic because she understood Donnie was going through pubescence and was beginning to experience an sake in daughter. She also knew he was too Cy Young and inexperient to empathize why he was attracted to the opposite sex. Every metre she had her girlfriends to their home for a sleepover, he acted up.

Lucy is a beautiful young girl with golden hair, crystal blue eyes, and luscious full brim. Donnie is the claim opposite of his sis. He is a tall, gangly boy with freckles and large ft that made him uncoordinated and ill-sorted for sport or anything that required agility. Donnie had very few friends. Lucy, on the other hand, was one of the most popular girls in school. Lucy was a boy magnet, and male child would descend all over themselves to be near her. If she needed something, there was always a young man there to fetch it for her.

Lucy was headwaiter of her cheerleader squad, president of her older class, and was elected homecoming pansy two year in a row. Donnie was n't exactly ugly, but he seemed to repel most girls with his unpredictable conduct and unappealing appearances. He was a bit of a nerd who enjoyed skill and computers.

Donnie had a chemistry set and often found chemic formulas on the internet to use with experiment. One of his favourite was hydrogen sulfide ( rotten egg gas ) that he released one dark when his sister had a slumber party. Lucy 's bedroom smelled like farts the rest of the night, and the girls had to move their slumber party down to the den.

By the time Donnie was eighteen and a fourth-year in high school, he was still a virgin and didn't have a girlfriend. He had started to notice mamilla but had only seen naked ones on the internet so far. The only thing Donnie knew about sex, he had learned from porn situation. He still didn't know how to relate to the opposite sex successfully. He was somewhat like a ten-year-old boy who chased and pulled the haircloth of girls he was attracted to on the playground. He knew it was time to grow up and learn to act like a sexually get teenager.

Donnie was desperate to get a girlfriend and fall behind his virginity, so he checked his porn web site to find out what girls wanted in a young man. He noticed that all the men on the porn sites had ten to twelve-inch shaft. Donnie measured his cock and found it was just a fraction under seven column inch. He had to find a way to maturate a long cock. He searched the internet for a chemical formula that promised a bigger, grueling cock and also claimed it would remain hard until a lady friend was satisfied. It emphasized that staying hard was crucial when it came to satisfying a cleaning woman.

Donnie got his alchemy set out and worked all afternoon, perfecting the entail mighty anatomical variety to his cock. After boiling off the liquidness, he ended up with four ounces of fine Theodore Harold White powder. The internet directions guaranteed that one teaspoon of the powder in a cup of liquid would deliver the pledged results. Donnie drank the concoction and set about waiting for the reaction to carry place. By dinner party time, nothing had changed. His shaft was n't any prospicient, and he did n't feel any different.

After dinner party, the mob settled in the den to check TV together. Donnie was fidgety and kept leaving the room every twenty to thirty moment to check over and see if there were any changes to his tool. There was n't. He did seem to get an hard-on at the slightest stimulation, but that was fairly distinctive for a teenage boy with raging hormones. Around ten o'clock, the family retired to their bedrooms for the night. Donnie had a ungratified dark. He kept dreaming of naked girls parading before him. Every once in a while, his dream would admit his mother and babe among the raw girls.

Donnie came down for breakfast the following sunup and took a step into the kitchen. His Mom was meddling preparing breakfast as usual, but something was different. Donnie shook his head and looked again. Why hadn't he noticed the solar flare of his Mom's hips before ? She was wearing a dark knee-length annulus and a sheer white blouse that kind of hugged her waist. Her butt curved nicely under that skirt. The outline of her lacy White River bra was unmistakable under her sheer White person shirt. Was that sexy ? For the first time in his life history, he thought it was. He could see the clotheshorse of the right field side of her boob under her shirt, jiggling as she stirred the pancake mix with a large spoon."Holy cow, '' he thought to himself. He had never noticed before, but his Mom was hot. He got an erection looking at his Mom. He had to sit down and hide it from her.

A mo later, Donnie's Sister entered the kitchen and took her usual station across the table from him. Looking up from his breakfast, he stared at his big baby. How had he not noticed how pretty and delicate she was ? Soft blue eyes. A warm, engaging smile. His older sister looked different. Her bra straps are seeable on her narrow down shoulders. And her boobs ? Oh, God, her boobs are small and unshakable, just hanging out right there. How had he not noticed them before ? The truth is he'd never noticed Lucy like this before. Her trim small hips. Her dainty nose. Her long, lithesome neck. How had he never seen it before ? He tried to smile at her. His tool got uncomfortably backbreaking, and he attempted to acclimate it covertly. His Mom gave him a questioning facial expression. Donnie tried to engross his big Sister with pocket-size talk of the town about the yearly she was editing for her college but kept stumbling over his Holy Writ. He finally gave up and excused himself and left for school.

Donnie 's cock had n't made the changes promised on the internet, so he studied the chemical convention and decided that the dosage must depend on consistence weightiness. Instead of one teaspoonful of the white pulverisation, he put a tablespoon in a cup of hot tea and imbibe it with his dinner. At about two o'clock in the break of day, Donnie woke up. It was still morose outside. He rolled over in his maze of tabloid and groaned. Something felt odd. Very odd. He tossed and turned, trying to get comfortable. Something was wrong with his cock. Donnie rolled over, jumped out of bed, and pulled down his packer shorts to examined himself. His cock was operose, very hard. It was not any longer, but it was swollen fat and ached terribly. It was the worst case of blue balls he had ever experienced. He urgently needed to cum. Donnie rushed to his bathroom, pushed his boxers down to his ankles, and began to masturbate aggressively. He tightened his hand around his concentrated cock and pounded away. Images of his Mom and baby surged into his head. He seized his dick and increased the rhythm. He was harder now than he had ever been in his life. His cock was, indeed, a sight to lay eyes on. The head teacher was violet and mushroom-shaped. The veins were sticking out and throbbing.

An hr later, Donnie still hadn't cum. parentage drained from his head and filled his puff up cock. He was becoming dizzy, and his arms felt like they were about to fall off. He'd never experienced anything like it. He waddled over to the bathroom window with his boxers still around his mortise joint and pulled the windowpane capable. The cold, frizzy air cleared his headland. Donnie kicked his underdrawers off and deposited them in the clothes shackle. Donnie shared a tar n'Jill bathroom with his big sister, Lucy. He opened the door that connected the two sleeping accommodation and made his way to his sister 's bed. Donnie sat on the edge of his sister 's bed, crying because of his painfully hard, aching cock. He sobbed in hurting as he shook her shoulder. She woke with a starting line and said, `` What is it, Donnie ? Why are you crying ? ``

"It's my cock,"he blubbered."It hurts so bad I can't standstill it."

Lucy sat up in her bed and saw that Donnie was nude from the shank down, and his stopcock was standing at attention. Lucy had never really given much retainer to her footling chum's cock other than the few times she noticed his arousal creating a bulge in his pants.

"What the hell do you want me to do, Donnie ? I'm your baby ! I'm not supposed to see your…. your….. thing …. like that.

"Please help me, Lucy,"he pleaded,"I just need to cum."

"Well, go in the john and jack-off, or larrup your scalawag, or whatever the sin hombre do to wee-wee themselves cum,"Lucy bellowed.

'' I 've been beating off for over an hour and a half. I 've come close, but I have n't been able to push myself over the edge and cum, '' Donnie explained to his sister. `` I thought maybe if you did it, I would finally cum. ``

"Donnie ! I'm your SISTER ! I'm not supposed to touch my comrade like that. It's not right. It's called incest."

"Please ! Please ! Please, Lucy ! I promise I will never ask you for another favor as long as I live,"he begged."Just help me cum this one time."

Lucy considered the agony on her little chum's face. Her heart went out to him because she could see he was sincerely hurting. Lucy relented and asked her brother to lie on his spinal column. She then crawled between his legs. Lucy set back on her heels and examined Donnie's cock for a moment. She had seen a lot of pecker, but never a putz this gravid. Lucy dated a lot of guys in mellow schooltime and college and had become very skilled at giving a handjob. It was n't one of her favourite things, so she learned to get them off quickly.

Lucy wrapped her hand around Donnie's cock and said,"You are going to owe me big time, Donnie."

Lucy placed both hands around her little brother's cock and felt the veins and muscles under his cutis. Donnie 's cock twitched and throbbed under his sis 's skilled touch. Lucy first used the 'twist and turn'method acting, where she would slip both hands up and down his jibe while twisting each paw in the opposite counseling. Lucy would alternately glide the ribbon of her hand over the head of Donnie 's pecker, every third or fourth trip to the top of his shaft, paying particular attention to his sore frenulum.

Both of those feeler usually got a guy off rather quickly. When neither worked on Donnie, she switched to what she referred to as the ‘ nuclear pick .'An established proficiency that always resulted in an explosive orgasm. That proficiency consisted of gently massaging Donnie's balls with one paw while sliding her other script up his pulsating rooster to his mushroom as she again stimulated the frenulum. While continuing to act his lance in that style, she tickled his balls with her fingertips. No one had ever lasted more than a few seconds under that method.

As chance would have it, zilch happened. Lucy fell to her brother 's side, totally dog-tired. Her arms were aching, and her fingers were numb.

"Don't plosive consonant,"Donnie shrieked,"I was almost there !"

"I'm sorry, Donnie. I've tried everything I know to do."

Donnie thought for a minute and then nervously proposed,"Well…not everything."

"What do you imply,"Lucy asked ?

Donnie hesitated a long instant then gingerly said,"You haven't tried your mouth yet."

Lucy bolted erect in the bed and glared at her slight blood brother. Her face was red, and she could experience the fierce heat rising from her berm and neck. Through clenched teeth, she growled, `` You are such a piece of ass deviate. I am your SISTER for God's sake ! Sister don't give their Brother blowjobs. No way am I going to let you stick that monster in my oral fissure !"

Donnie thought for a minute and then said,"Can I stick it in your puss ?

"Absolutely not,"she growled !

Donnie started crying again and moaned,"It hurts so bad, Lucy. I can't stand it much longer. My balls have never felt so full and hurt so badly. I know if I can stick it in something warm and wet, it will take a shit me cum. ``

Lucy had always had a tender spot in her heart when it came to her little brother. She could never sit by and let him goes through such agony and pain without at to the lowest degree trying to relieve his pain. Lucy leaned forward on her hand and human knee, opening her mouthpiece. In one relocation, she engulfed his thick hammer to halfway. The heat that enveloped his groin was intoxicating. Donnie reached down and gripped the sides of her fount. He watched in astonishment as his Sister gave him his beginning blowjob.

'' Mmmmmmmmm '' Lucy moaned as her brim glided up and down his shaft.

Donnie shuddered as Lucy swirled her tongue around his tender tip. He thought his balls were tight, but when her hand came up and cupped his full sack, Donnie thought he was going to mess up correctly there.

Lucy gave a mewling auditory sensation as Donnie began to prompt his hips, slowly fucking his sister's lip. He felt his engorged head bump the back of her throat but kept pumping. He'd been dreaming of this forever, and he would not be denied.

'' That 's it, Sis, suck your petty brother's stopcock. '' He groaned.

'' Yuullaakkkkk, '' Lucy tried to verbalize as he shoved his cock down her throat.

Donnie felt his balls slap against Lucy's mentum as he buried himself in her warm wet mouthpiece, pushing until he felt his cock enter her throat. There was no question of who was in charge now as seven inches of his hard tool stretched Lucy's pharynx with each thrust.

Donnie could hear Lucy taking breaths through her nose, looking down he watched her spit trickle from the street corner of her mouth and down her cute little chin. That sight alone was almost enough to piss him want to bobble his load down her pharynx right then and there, but he didn't want to stop feeling the magnificent delight of his sister's mouth just yet.

Lucy's optic fluttered open, and she stared up into his look. She released her grip on Donnie 's shoulder joint and slid her hands down his spinal column until she gripped a impudence of his ass in each handwriting. She lifted his ass toward her grimace as she forced her mouth down onto his cock until it bumped the back of her throat.

Donnie could n't trust the slut his sister had kept hidden inside. Every one of her direct effort reeked of sex and lust. When Lucy released Donnie's ass cheeks from her clutches, he watched as Lucy's mouth suck tough around his jacket, and then slowly slid down until her olfactory organ was buried in his pubic hair's-breadth. Donnie could sense his rooster enter his sister's throat again."Fuck, she had just deep throated him again,"he realized.

At the Saami metre, Lucy reached up and pulled her nightgown off, and he could only stare at her nude body came into view. There is nothing like having a nude and horny slut kneel between your legs with your cock shoved down her throat, he thought.

Donnie could n't stand it anymore. Reaching down, he intertwined his digit into her blond hair, holding her head still he began to arch his hips. Donnie could hear her wet slurping as he began to fuck her hot mouthpiece. He thought she might get mad, but instead, she only hummed her approval of him taking dictation. The shaking from her humming went straight to his boiling balls, sending his soundbox into overload and shutting his brain down at the same instant.

'' Take it, Sis, suck my cock, '' he roared as his orgasm built. `` I think I am going to fucking cum, '' he told her !

Donnie arched his rosehip up harder, driving deeper. He could hear Lucy commence to gag on his distance, but she seemed to feast off his motion. Donnie felt his balls slapping against his sister 's spittle covered Kuki-Chin. The sight of his cock buried down her throat was too much. He was on the verge of cumming.

Her rima oris suddenly slipped off his pulsating rooster, and she began to shudder as her coming raced through her soundbox. Donnie felt the insistence ease off his glands, making his clod start to make up back down. Lucy was still shaking and convulsing from her orgasm. Donnie clutched her to his pectus and pressed his lips to her sunbaked lips. Their tongues found each other and danced.

Lucy disengaged from their kiss and said, `` Fuck me ... please ! '' She sounded like she was begging.

That was all Donnie needed ; he grasped his pulsing rooster in one hand while he supported himself on the other. Aiming the engorged head word to her swollen labia, he lowered his hips. Just as the tip of his rooster touched her dampness, Donnie looked into her eyes. He could see the fervency radiance in her eyes.

Donnie's turncock head parted Lucy's labia like wet petal as he slid the head inside, accompanied by a sonant, dampish sucking speech sound. He could feel her tight silky bulwark gripping his hammer as he pushed deeper.

'' Oh, Jesus, '' Lucy groaned as she stared into his aspect. `` Slow Donnie, '' she gasped. `` I've never had anything this big in me. ``

Donnie's cock is the biggest hammer she has ever had in her nasty pussy, he realized. No wonder her walls felt like a velvet bench vise, she was as miserly as a Virgo against his seven inches. With a grunt, he pushed down, down, down, sliding a yoke more inches into her.

He watched as Lucy 's center fluttered again, her mouth opening in a dumb"Oh"as her body gave a lowly cramp under him. He could feel her nails dig lightly into his back and then slowly eased up.

'' My God, '' Lucy breathed out a foresightful sigh. `` I just came again, Donnie. Fuck, that was just. '' A little smile crept over her look. `` Fuck your big baby, soundly and hard little brother, '' she urged him.

With only half his cock inside her tight cunt, Donnie began to sway his coxa, slowly sliding in and out of her now dripping kitty-cat. With each forward motion, he slipped more and more than of his length inside her.

'' Oh shit, '' Lucy groaned as his pelvis came down on hers, his full seven column inch now buried to the hilt inside her sop vagina. Lucy's grip tightened on her little brother's hips, holding him in place.

'' Do n't run for a moment, '' Lucy gasped."Let me do the work for a while."

He could experience her hip joint grind in a slow roundabout under him as her Venus mound pressed against his pelvis. There were rhythmic like undulation pulsing along her tight walls as his big sister skewered herself on his manhood.

'' Oh, piddling brother, '' Lucy moaned `` I want ... I 'm going to ... I'm going to… '' Then Donnie watched as his sister's eyes slowly rolled back again.

'' Ooohhhhhhhh '' Lucy softly whimpered as her entire body jerked under her footling pal. She stopped moving as a violent stream of fluids gushed out to soak Donnie's turncock and testis, and then slowly run down the crack of Lucy's ass to imbrue the rag under her.

'' Wow, '' Lucy whispered as her eyes refocused on Donnie's face. `` Are you sure enough you were a Virgo the Virgin, slight brother ? '' she asked.

'' I was until a moment ago, '' he smiled back. `` Why ? ``

'' Because you have already made me cum three multiplication, '' she told him. `` Yet, you have n't even started to really do it me. ``

Donnie pulled slowly back until just the head teacher of his cock rested inside her wet scuttle. Hovering over her, Donnie locked center with his sister. Donnie gave a dumb thanks to hours of watching porn that had prepared him to know what to do to please his beautiful sister sexually.

'' Oh, so now you want me to lie with you,"he grunted ?"You mean like this ! ``

Donnie then rammed his cock down hard, slicing down through her velvet rampart, driving late, deep, bass. Lucy's legs shot out and then wrapped around her brother's waistline as she scrapped her nails painfully down his back. He felt another blowup of ardent fluids wash his belly as her fourth orgasm ripped through her unprepared body.

'' Oh my, God ! YESSSS, '' Lucy screamed as she convulsed under him again.

Donnie's rose hip rose and fell as he pounded down into her with unrestraint. One vantage to her Brother was an almost unlimited energy supply supplemented by the chemical substance concoction that kept his putz unusually hard. Wet slurping filled the room, as the scent of their sex hung heavy in the air.

'' shtup me ... get it on me ... '' Lucy chanted as her trivial brother, hammered into her. `` Own me, picayune Brother, '' she said. `` I 'm yours for the taking. ``

Donnie knew he would n't last much longer. It would be a welcomed assuagement to his aching ball, but he did n't need the delight of his stopcock sliding in and out of his Sister to ever end. Donnie could hear his glob slapping his baby's cum soaked ass as he fucked into her with everything he had.

'' Oh, My Fucking God, '' Lucy's heart grew huge. `` Again ... oh fuck ... oh God ... '' Lucy gasped.

Donnie watched as Lucy devolved into a quivering mass under him. Her torso was continuously jerking and spasming. Her custody slid up his back to the side of his face.

'' My little brother is making me cum so fucking hard, '' Lucy 's seriously lust-filled spokesperson washed over Donnie's face.

Donnie felt Lucy's wall rippling along his quill, trying to milk the boiling cum from his balls. As he watched his big sister orgasm a one-fifth prison term, his body gave in to the sensations as his balls started to tighten. Lucy gasped, her oculus locking to his. Donnie tried to keep looking into her centre as his orgasm hit, honestly, but it was n't going to come about. Donnie's optic rolled back in his head as his released cum exploded from his testis and shot the duration of his cock.

'' Oooohhh, '' Lucy gave a primordial roar as the foremost blast jetted out to wash her spasming walls.

Donnie refocused on Lucy's face as best he could as his ass impudence tightened, and a second base burst pumped out to flood her waiting pussy. He could see the look of curiosity in her eyes.

'' Jesus, '' Lucy moaned. `` I can feel it, oh my God. '' She shuddered under him.

By the time the last muscle spasm of his pecker hit, it had to be three or four hot rophy he had let loose inside her. Donnie rocked back on his blackguard between Lucy's lewdly spread thigh, looking down between their joined bodies.

The erotic mint of his tool sliding from her tight pussy was exciting enough. Still, the additional simulacrum of whiten globs of cream that matted both their pubic tomentum, as their desegregate pick seeped from her sent a shake down his spine.

'' I 'm no longer a virgin. '' Donnie crowed as he looked down at his beautiful sister.

'' No, you 're not '' Lucy reached up and ran her fingers down his hairy chest. `` Now, my BIG little brother is a man. '' She said.

As Donnie slid his cock free of Lucy's clutching pussy, he was thrilled to see it coated with their slipperiness goo, and his Ball no longer ached and throbbed. He was even more excited to understand that after emptying his balls, he was still rock hard. He wanted more of his sister, and he intended to ingest her.

'' Am I your man ? '' Donnie asked as his Sister stared riveted at his throbbing cock.

'' Forever little brother, '' Lucy whispered back.

Donnie reached down and began to ramble Lucy onto her stomach. Pulling up on her rose hip, she rose to her hands and knees on the bed. She looked over her shoulder at him as he positioned himself behind her. There was a fire in her heart he had never seen before.

'' Are you going to mount me ? '' Lucy growled. `` Are you going to screwing your big Sister like a kick in warmth ? ``

Donnie snarled with lust as he dragged the swell up top dog of his cock along with his sister 's cum soaked lips. He never had in his life heard his babe talk like that ; it was as if she had become the slattern he'd dreamed about.

'' I fucking know this position, '' Lucy moaned. `` It 's been too recollective since I was so satisfied ; now fuck me like the whore I am. Every hole I have belongs to you now, little blood brother. ``

Donnie slammed into her plume pussy and asked,"Lucy, I know I promised you I would never ask for a party favour like this again, but do you conjecture you could fix up for me to bonk some of your sorority sisters the succeeding time I get hard like this ?"

"Donnie ! I'm your sister ! I get first gear dibbed on your marvellous prick ! ”