Emily sat in the chair opposite the bed, her legs apart and her fingers busy masturbating and watching the clock as it approached the birthday hour.

She never took her eye off her twin sister Melissa, who was just thirty minutes older than her. More to the point she never took her eye off her brother’s cock that was fucking and pushing Melissa’s body into the bedclothes, rapidly bringing her to her third orgasm. She only had five minutes left before the deadline.

The deadline was eight o’clock, the time when her sister, Melissa, was born. That was the time of her official eighteenth birthday and that’s when Melissa would fuck her father. Emily couldn’t wait because she knew thirty minutes past eight would be her turn for some of the same treatment.

Melissa cried out for the third time and Zachary rolled off her and onto the bed, exhausted from the constant pounding of her cries for harder and faster. As it turned out, Melissa was the more insatiable of the twins. Emily jumped from the chair and straddled her brother before Melissa had time to roll off the bed. Emily watched her sister mop up the wetness dripping down her legs, leave the bedroom, and head towards her parent’s bedroom. Emily continued to feed her brother’s cock into her needy cunt.

-=-=-=-

Growing up on a remote ranch with just your family for comfort puts a somewhat different perspective on taboos. Especially when the animals around you are doing the same thing. Normal brother-sister relationships went out the window when, a few weeks past their sixteenth birthday they caught their older brother fucking their mother over a bale in the hay barn. That was the start of abnormality in the normal sense of family terminology. Though it was far from abnormal for them.

At first, the twins couldn’t believe their eyes. Subsequent events opened them even further when one evening they spied their mother being fucked by both Zachary and their father, Ted. Not that they were that innocent themselves. At sixteen they had experimented, mainly with items from the refrigerator at first and progressing to mutual masturbation to soothe their sexual compulsions and teenage hormonal surges. They believed they were the only ones experiencing these urges, but from what they saw they were just the tip of the family iceberg. Everyone seemed to be at it.

One fateful evening saw them approach their brother late in the evening. He was brushing down the horses when they appeared out of nowhere. One hand appeared on each of his shoulders from each of the girls. The confession was easy to prise from his lips.

In such remoteness, education was via remote access, though there was nothing that the education system could teach them about animal husbandry, crop rotation and even basic veterinary techniques. The twins lapped it up, nevertheless. The internet taught them all they wanted to know about sex and Melissa even dabbled in writing a few stories on the erotic sex sites.

Eight-thirty saw them gather around for their evening meal. This time, everything was different, they had evidence that something was different with their family and furtive glances towards their father, mother and brother contained that air of secrecy. The twins knew that the other three were hiding secrets. They wanted in on it and for now, their brother was their prime target.

At bedtime, the girls retired early, leaving the three of them to watch the television and hopefully get up to some hanky-panky, but that never happened. Quiet footsteps were heard outside their room and when everything seemed silent, both girls headed for their brother’s room.

He wasn’t surprised to see them standing in the doorway stark naked. He quickly stood and ushered them inside; taking the time to look down the corridor to see if his parents had spotted them. The coast seemed clear.

“We want you to fuck us too,” said Melissa.

“I can’t,” came the unexpected reply. Unexpected, because the girls had bodies to die for, better than their mothers.

“You can’t,” added Emily.

“Maybe you can’t, but you fucking will,” commanded Melissa.

Zachary shook his head.

“Come on Zach, we’re two horny little fucks waiting for you to shake your pole inside us,” added Emily in her little princess voice.

“You’re already getting stiff,” Melissa let her hands stroke along his thigh as she nestled between his legs.

“We’ve seen how hard it is, Zach. It’s a wonder mother didn’t scream when you pounded her in the hay shed.”

Zachary shook his head once more.

“OK, I’ll do it but only if you do each other.”

Melissa looked up at Emily, the realisation of what was being suggested a picture on their faces. Masturbation was one thing but that.

“Why the hell not,” said Melissa, who was always the first to try new experiences. She shook her head motioning to Emily to get on the bed.

Emily stood still for too long and Melissa had to stand up and push her onto the bed. Once there, her hands parted her sister’s thighs and before she knew it she was eating pussy. She nearly came at the thought of what she was doing. She lifted her head and looked into her sister’s eyes.

“This tastes lovely, you’re gonna love it, sis.”

Melissa looked over her shoulder, “the deal was some cock, I believe. Come on brother we’re not virgins.”

That realisation was lost on Zachary but he never questioned it. Instead, his throbbing cock penetrated his sister while she continued to eat her twin. Emily’s cries came sooner than later. Masturbation was good, very good, but this was on another level.

Emily climaxed on her sister’s tongue as she licked and sucked at her clitoris. Her hand had a mind of its own when it grasped the back of Melissa’s head and pulled her headlong into her pending orgasm. Their brother fucked Melissa as hard as he could and pushed her further into his sister’s cunt.

Melissa’s legs shook, and Zachary pulled out of her before his balls exploded inside her. She fell forward onto her sister’s belly. His gaze fell on Emily as their eyes locked together. Emily looked at his cock, a throbbing and powerful sight indeed. She threw her legs over her sister and stood up.

“Get up there,” she said, smacking Melissa’s arse hard.

It was all Melissa could do to move, but she scrambled up the bed, turned around and opened her thighs.

Emily approached her brother. “This had better be the fuck of your lifetime,” she warned him.

Emily nestled between Melissa’s thighs, took one look at her red and abused pussy lips and dived in. Nothing was going to stop her from getting fucked, nothing.

Zachary took his time, rubbing his cock along her wet slit, teasing her, making her wait for the intrusion. He bit his lower lip as he watched his sister lap at Melissa’s folds.

“Don’t be afraid sis, get your tongue in there,” he told her, “once it goes in, I go in.”

If ever she needed encouragement, this was it.

Her tongue dived between her sister’s pussy lips. Zachary’s cock pushed into her luscious cunt and before she knew it, Emily was being fucked by a proper dick. Not that her brother was that kind of a dick, but he could be at times.

She cried out into her sister's pussy, and lapped all the more as the horniness of the situation took over. Her insides were screaming with pleasure, the hot cock was searing her insides, scraping her sensitive flesh and oh-my-god was it touching places that she had never been touched before. Her orgasm came far quicker than Melissa’s. Her eyes opened wide, and her tongue flicked at Melissa’s clit but her mind was trying its best to convert a second orgasm, fast on the tail of the first.

Her legs finally gave way and she slumped on the bed, but her brother was still fucking her and pounding her slit that she climaxed a third time before he pulled out and squirted his juices all over her backside.

Up until that moment, Melissa had been left out of the proceedings, the licking hadn’t gripped her that much, probably because of the fuck she had already experienced, but when she saw that white creamy fluid she was off the bed in a flash and leaning over her sister’s body and sucking and licking it all up. It was manna from heaven. It was the first sperm and semen she had tasted in her whole life and boy did it taste good. So good in fact, that Emily would have to wait to taste it.

Zachary sat in a nearby chair looking at his greedy sister clean up the mess.

“That was good,” said Emily, “that’s a good cock you have there, Zach,” she added.

“Nice tasting spunk too,” said Melissa, matter-of-factly.

Zachary just smiled. It was the start of their adventure and one where the girls wouldn’t let him alone for many months to come.

He was six months into the illicit sex with his twin sisters when his mother noticed a decline in his libido. A decline for her that is, not him. He confessed that he was fucking both of her daughters at the same time. The smile on his mother’s face said it all. She couldn’t have been more proud of him and was unable to express it in words, so she took his cock out of his trousers in the middle of the kitchen and sucked him off until he spurted down her throat. It was classified as pre-dinner drinks as far as she was concerned.

Fiona, their mother, eventually informed her husband, Ted, of their offspring's sexual exploits. He looked pleased. “Not until they're eighteen though, it's my rules and they stay that way.”

Ted was a stickler for the rules. He had stopped his wife from fucking their son until he was eighteen even though Fiona had the hots for him and had seen how big his cock was in the shower on many occasions. It wasn’t right for a young man to be so sexually unsatisfied, she would argue, it’s not his fault he lives in this remote wilderness.

Nevertheless, she had to wait, and so did Zachary. All he had growing up was his hands and good hearing, especially when listening to the sounds through the bedroom walls. On more than one occasion he caught his mother in the shower. It wasn’t by accident. She had planned that since he was sixteen, it was her way of preparing his libido for when she could benefit from it.

Zachary spent many nights masturbating in his room over glimpses of his mother’s breasts, her shapely body, plump arse and that wonderful pussy. He wondered for far too long what it would have been like. The exhibitionism became more frequent the closer he got to eighteen, even to the point of letting him catch her masturbating in the shower. All that teasing was too much for Zachary. But, with only four weeks to go, she thought it was the right thing to do.

His eighteenth birthday was a complete surprise. He had been watching his mother in the shower that morning, he watched her shake her ass at him in the kitchen while preparing dinner in the skimpy shorts she used to wear. He had to eat quietly with the rest of the family, while his hands trembled and couldn’t wait to get to his room and jack off.

More than anything he wanted to hold a pair of breasts in his hands and squeeze them and do whatever his father did to his mother behind closed doors. He excused himself from the table and almost ran upstairs to his room.

Zachary jumped on the bed, pulled his shorts down and pulled his cock free. That’s how far he got when the door opened and his mother stood there. Embarrassment was written all over his face as he struggled to pull his shorts back over his erect cock.

Fiona closed the door. “Your dad’s taken the girls out to the Miner’s field to tend to the horses,” she said, in a calm voice. Zachary looked dumbfounded. He was not listening to his mother’s words or the intention behind them.

It only dawned on him when she pulled her top over her head and unclipped her bra, letting both of them fall to the floor. Her skimpy shorts followed. He got off the bed to his mother’s wagging finger, motioning for him to come to her.

She took both of his hands and placed them on her ample tits.  “Touch them, feel them, squeeze them,” she told him. Zachary busied himself on her flesh while she pulled his top over his head and lowered his shorts once more.

He didn’t need to be told to suck them, he figured this out all on his own. His pulse had risen to well over what was considered normal for a healthy young man, but here he was with a mouthful of tit flesh and a smiling mother to boot.

His cock was more than erect and being pulled by the fist that earlier held the cucumber while she chopped them for dinner. She moved both of them towards the bed, turned around and sat on the edge. Zachary followed her and knelt on the floor, still kissing her breasts, and fondling and squeezing them. She lifted her head.

“I had to wait until you were eighteen,” she said. “Happy Birthday.”

His mother pulled hard on his cock. It nearly erupted and would have done if it wasn’t for the amount of wanking he did.

The kiss was pure electric. He melted into her voluptuous body, his hands wrapped around her and cupped as much bum flesh as was exposed. His cock jerked and pulsed. Jism had escaped the end and his mother could feel his needy body responding to lust.

She needed this as much as he did, it wasn’t him she was teasing when she provided glimpses of her body, it was her; as if she was edging without touching anyone. The edging was now over. She lay back on the bed. A straight fuck seemed the best way to go for his first time. The blowjobs and rimming would come later.

Fiona opened her thighs and pulled her son up onto her body. She grasped his hard cock in her hand and rubbed her slit up and down with it. When he pushed forward, she let it go. The penetration was effortless, frictionless, fulfilling, and needy. Her legs reacted by wrapping themselves around his torso.

Zachary fucked into his mother. His cock, a raging monster that just couldn’t wait to impale her. He couldn’t believe his luck. All those times masturbating about sucking tits, feeling bottoms and fucking pussies and here he was, deep inside his mother. His dream.

Fiona moaned, grasped his pumping buttocks and encouraged him to lose all self-control.

“Give it to me, son. Fuck me and fill me up with your cum. I want you so badly.”

“Oh, fuck, mom. I want you too.”

His pounding ass was controlled by her hands, keeping him close to her body so that she could feel the fullness inside her. The last thing she wanted was for his cock to accidentally come out and spurt on the bedclothes. That would be a waste of semen, especially on his birthday.

Her experience was rewarded. Zachary couldn’t hold the pleasure anymore. His grunts became more urgent and needy, his thrusts, more random jolts than a smooth fucking motion, her hands on his buttocks kept him steady and focused.

And then he spurted. Pushing into his mother’s cunt, he unloaded everything into her, holding himself fast against her not realising she was constricting her muscles and squeezing out every last drop.

 He more or less fell on her body. “Did you come?”

Fiona smiled, and shook her head, “Not this time, but I know I will next time.”

“When is next time?” he asked.

“She raised her eyebrows, “Oh! In a few minutes I shouldn’t doubt,” she said, smiling.

Fiona knew they had a good few hours with everyone else out of the house. They fucked four maybe five times, she blew him once in between, swallowing everything he had to offer, a finger even went right inside his ass as she sucked on his big cock. She loved doing that, and it was something she was determined he get used to from the start. His spunk tasted wonderful and plenty of it even on the third attempt.

Fiona climaxed four times once she got started and once Zachary could pace himself better. She knew the first one would be fast and furious and uncontrollable. She may as well let him cum inside her and let those emotions flow out of him. She was ready for the next one when she straddled him on top.

He didn’t last long, not with her luscious tits in his face, but long enough for her to convert the throbbing in her cunt into a much-needed climax. She made him bite her nipples which always added to the raunchiness of the situation.

The third fuck was from behind. She wanted him to get used to all the ways he could take his mother without asking. Her ass would be on offer soon enough but not this evening. That could wait until he joined his father in the master bedroom for that threesome.

Unbeknownst to Zachary, it had been a while since his mother fucked his father and brother together. That kind of sex had been missing for quite some time since Robert left to venture into the big wide world and to this day, she still doubted who Zachary’s father was.

Mother and Son fucked together for some time, always being discreet until the day he would ask whether his father knew about them. Fiona told him the truth, that his father knew and encouraged it and if he would like to join them together, he could.

To Zachary, it was a no-brainer. Within a week of being told, he was sharing his parent's bed and that fortuitous threesome was on the sexual horizon, with the devil laughing his head off behind them.

They...