“I can’t believe it. No way that fits!” Rebekah said with genuine concern.

Maureen was watching closely as her twin children tried sibling anal for the first time.

“It will, baby. Don’t focus on the discomfort.” She squirted more lube on her son’s cock as it slid forward. “Focus on his eyes. Look how much he loves you. Try to think of pushing out while he puh--yes! There!”

“Ohhh, fuuuck,” Caleb and Rebekah said in unison as his cock passed the second sphincter.

“Ohhh…Mahhmm!” Rebekah groaned as she gripped her mother’s hand in an attempt to dissipate the pain. “Discomfort? This fuckin’ hurts!”

“Unph!” her brother/lover grunted. “Remember that Becker, when you become--fuck yes--a doctor!”

The very strong Caleb was beginning a good tempo of in and out. He learned a lot about anal sex from his mother. And now, he could share that skill inside his sister.

The Wharton family was celebrating the twins’ 23rd birthday with a homecoming fuck fest. Like a family does.

His sister was insistent that they do this missionary style. She wanted to see his face. She always wanted to see his face when they fucked. Which, sadly, had only happened six times; the last on Labor Day weekend when the four had spent most of the holiday in bed and naked.

It was late September and the twins had both made time to come home for their birthday celebration. Friday night, their actual birthday, was the standard affair: grandparents, friends, a few cousins. But starting Saturday morning, today, it was clothing optional orgasm-chasing. Exploration was the incentive!

The twins had made a ridiculous wager with one another: $23 that they could have more orgasms than the other before Monday morning. And it didn’t matter how they got them; from each other or one of their parents. The only rule was no masturbation.

Alan sat in his “cuck” chair watching the threesome with sad elation. And he was desperate to orgasm. His aching penis sat in a locked cage now, leaking and looking deep red. The key was on a small chain hanging off his daughter’s neck. He loved that it was resting flat against her breast that pendulated with every powerful thrust of his talented son.

“Mistress, please, I need to--!”

“Not now, Cuck! Don’t be selfish!” his daughter yelled at him through grunts of anal carnality

He mumbled, “…Sorry,” and went back to gripping the arms of the chair.

"Fuck me, seven!" she yelled.

***

Three short months ago, this family nearly fell apart. Fortunately, the night that Rebekah came home early and found her mom and brother fucking, changed her life for the better. After an intense reality check in the kitchen, Caleb and her mom went back up to her parents’ bedroom and had their most intense sex so far.

Rebekah watched from the other side of the bed and had slowly stripped herself for the purpose of masturbation. When her brother flipped his mom to drive in from behind, she couldn’t stand it any longer. She motioned for her stunned father to come and eat her sopping pussy. He had hesitated and she gave him his first command.

“Eat my wet pussy, Dad. Make me cum, now!”

He was good, sure, but she was hair-trigger ready.

She had two orgasms back-to-back, holding her father’s head tightly in her thighs with her eyes darting back and forth between her brother and her mother. The two of them had shocked, lust-filled expressions. That made all of it even sexier for her.

Once she released, there was no turning back. She made a brief note of slightly enjoying giving her father orders and then pushing him away. She was beginning to understand a little bit more of his dynamic and she liked it.

She had to have her brother’s cock inside her next.

Before Caleb could even cum, he had watched her orgasm as a form of emancipation. It caused him to pause slamming into his mother’s cunt.

“Oh wow," the brother reverently sighed.

Maureen softly agreed. “Oh baby, you are so beautiful.”

What happened next surprised the mom but not the daughter. Rebekah pulled her sexy mother into a deep kiss. Caleb was blown away.

Panting, Rebekah pulled away showing a wide-eyed concern that that may have been too much too fast. Seeing only love in her mother's eyes, and a bit of tears, the daughter breathed in raggedly.

She breathily pleaded, “I need his cock, please…right now!"

Maureen was in mom mode immediately. “Caleb,” she said as she turned, and he pulled out of her. “Your sister needs you now. Show her how beautiful love can be.”

“You sure, Becker?”

Rebekah sat up and pulled her kneeling brother to a bigger kiss than she had given her mother. It was tongues, and passion, and moaning, and hands gripping. Her beautiful breasts pushed into his sweaty chest, and his hands slid to perfectly round ass cheeks he had admired for so long. When her hand found his cock, still wet from his mother's moist mix, the two nearly collapsed from excitement.

Rebekah simply gripped his shoulders and fell backwards. He followed and was on top. Her legs wrapped around his waist with minimal effort. He found his twin sister’s pussy sucking in his intensely hard cock for the first time. It instantly felt right.

“Ohhh gahhhd, Cale! Fuck me!”

He didn’t have time to think about his five orgasms in the last thirty-six hours. Somehow, his balls felt full again, and his length felt longer. Every desire and lust he had harbored for his sister drove his body to jackhammer into her. He wanted to make love to her. He wanted to kiss her and hold her and drive her crazy. But that’s not what she needed right now.

“Oh, you look so beautiful together. I’m so pleased.” Maureen was sitting closer to the edge of the bed; her well-used pussy was feeling a runner’s high: should be exhausted, but adrenaline kept her going. She took a page out of her daughter’s book.

“Come here, Cuck! Eat my pussy, make me cum!”

Alan speed-crawled to her side of the bed and lapped her up without hesitation. He still had his own daughter's juices on his face, and Maureen nearly exploded when she felt his cheeks stick to her thighs.

For the next three minutes, no one spoke. The sounds of grunting, squeezing, skin slapping, and wet pussy squishing filled their ears. A shared taboo drove them all to the most intense depravity.

Alan worried for a moment when his inadequate cock went off script and exploded all over the bedspread. He tried to hide the orgasm, but when he looked up, Maureen was burning fire into his eyes.

“You will pay for that.”

He managed to nod but not remove his devoted maw from her vulva. She dug her silver and black nails into his scalp as she shook through another release. How many was it now? Her pussy told her she didn’t need to know.

Beside her, the twins were nearing their "no one knows me like you" peak. Caleb was pressed firmly against his sister, his hips grinding with determination, his arms holding her head as if it might blow off from the force of his fuck. In a similar mindset, Rebekah had her heels pushing into his ass cheeks, holding him in place while urging him to employ his reserves.

Their orgasms hit at precisely the same moment. It was otherworldly, uncanny, even magical. Their twin energy exploded with a taboo that had them abandoning moral reality.

Both screamed each other's names and held tight, their stiff bodies, pulsing and spasming.

When there was nothing but tremors left, Caleb lifted his head with its sweaty waves, and in panting disbelief, laughed.

Knowing precisely why, his sister laughed back. “What in the actual fuck? That was indescribable.” She kissed his cheek. “Knew I wanted you, just never imagined…”

“Really? Never gave me any hints."

Maureen said, “Men are blind.” At the same time Rebekah said, “Boys are thick!"

Caleb scoffed then turned to look at his female parent while speaking to his sister. “You aren’t better than Mom, just different.”

Maureen raised a skeptical eyebrow but smiled. Their father was kneeling by the side of the bed. His very red and satisfied face was completely drenched in his own sweat and the feminine excretions of both his wife and daughter. He felt euphoric.

The curly-headed, pre-med student covered her eyes and laughed again. “This is really fucked up.”

There was a pause after Rebekah’s assessment, and the four of them burst into laughter.

Caleb reluctantly slid out of his sister and flopped on his back. She lowered her legs with a wince and felt his offering ooze out of her.

Maureen went even further down the wicked scale. “I feel so free, like this, I don’t know, life shift has given us a gift. I would like nothing better than to clean up my children’s cream pie. But I think it’s appropriate that we keep the same cleanup plan that has worked for our marriage for nearly twenty years.”

She bent and took her husband’s chin in her hand and stared at him from six inches away.

“Get over there and clean out your daughter. When you have enough of it in your mouth, I want you to show it to all of us before you swallow. Am I clear?”

“Yes, Miss.”

He started to move, but she held him in place. “And don’t think I’ve forgotten your indiscretion. In fact, clean that up first.” She pointed at the puddle between her legs, made by his unauthorized ejaculation.

He looked to his children who were both holding their breath. They didn’t hate him. Didn’t think him less. They actually showed fascination. With the familiar conflict of humiliation and pride simmering in his heart, he tilted his head, closed his eyes and began to lick his own semen off of what was once his bed.

“That is so wrong,” Caleb said softly. “And hot as fuck,” the twins completed in unison.

After their father was finished, he didn’t hesitate to crawl onto the bed and place his mouth between his daughter’s legs. She sat up on her elbows as his tongue began to lap up any excretions. She hummed at how good it felt despite the hard pounding she had just been awarded. She wondered what the two-sibling latte tasted like but knew she would find out eventually.

Her mother did not have to wait. She was licking and sucking up everything she could off of her son’s deflated phallus and soaked scrotum.

***

Sleep followed showers and a change of the bedspread.

***

The next day was tough for all four. Caleb had to stick to his plans. He started his pre-semester training for outdoor education grad school on Monday. And it would take at least twelve hours for him to get to the university.

The good-byes were tearful yet supportive. The four stood in the driveway for one quiet moment and easily moved into a group hug. It was normal and loving just like they had been prior to last night. The unspoken secret simmered under the surface.

“What do Whartons do?” Alan asked.

“We love each other no matter what!” all four chanted.

In the month that followed, Rebekah became fascinated by the intense joy her mother received from her dates and her reclaimings.

The younger woman tested a theory by ordering her father around. She recognized the sexual thrill that he experienced when submitting to his wife was also present when she told him to lick her ass crack, among other intimate tasks. Looks between them were a mix of “I can’t believe we’re doing this” and “You better follow my orders, or I will tell Mom.”

It was a Thursday night after dinner for just father and daughter. Rebekah sat at the kitchen table going over lab notes in preparation for her coursework starting in three weeks. Maureen had gone up to get ready. She had an overnight with Hal, her best friend’s husband, scheduled at seven. (That was a shock for Rebekah to hear, but more easily accepted than she would have thought.)

It was also exciting to hear that Ian Cleffer was also one of her dates. He was always considered the hottest teacher at her former high school. She was playfully jealous and made her mother give all the details in a wine-inspired, late night.

“Jeezus, Mom, five times?”

The mother and daughter had also shared some intimate moments of their own. Several of them, actually. Maureen was not at all surprised how easily she fell into having lesbian sex with her gorgeous daughter. There was no denying the woman was irresistible and she was the best cunt muncher in the family.

“Fuck yeah, I am. I should get a T-shirt made.”

“Maybe for your birthday. And one for Caleb that says, ‘Best Motherfucker Ever’.”

On the Thursday mentioned, Alan was setting up some coursework that he needed to grade on the dining room table when Rebekah added a new ripple in the river of their family.

“Mom, how do you think Dad would feel if I became his dominant and he my submissive?”

Maureen was in the process of transferring necessary items from her purse to her clutch and she froze with her favorite lipstick in her hand. She used it to point to her husband.

“You want to enter a dominant sexual relationship with my cuckold? What, like shared custody?”

The object of their discussion stood in the next room, frozen and gripping the table. He had hoped this might happen. After all, he was regularly serving his daughter in her bed with his excellent oral skills. And she periodically let him masturbate all over her lovely sloping breasts. Many lines have been crossed. Why not this one?

He stepped into the kitchen and cleared his throat, interrupting the two women and their intense and honest conversation.

“Um, with your permission, Miss, I would very much like to be Rebekah’s sex sub. Rebekah, I would be honored if you would be my co-mistress.”

His daughter sat in wide-eyed wonder and then slowly rose. She looked him up and down as of seeing him for the first time. She nonchalantly rubbed her left boob and its nipple said hello. She turned her head towards her mother, who had a look of “holy shit” on her face.

“Well, Mom, this was the kink I told you I would eventually share. I have a story to tell you about a club in Prague that’s kind of unbelievable, but for now…what do you think?”

Maureen stood nearly motionless, looking at a paint chip hole on the door jamb. She gave a low hum of thought-processing.

“It cannot interfere with his duties to serve me and keep my schedule.” She straightened and looked down at him over her nose; difficult to do as he was five inches taller than her. “Cuck must be available for all cleanup reclaiming when I want it. Other than that, well...you two work out what you want this to look like.”

Rebekah almost shook with delight as a huge grin spread across her face. She leapt into her mother’s arms and pepper-kissed her on the cheek, squealing, “Thank you, thank you, thank you!”

“Lord, child, you weren't this excited when I gave you permission to go see Ariana Grande with your loser boyfriend.”

Rebekah made a raspberry sound and slapped her mother on her huge boob. “Whatevs! This is big. I’m entitled a celebratory squeal.” She turned to her father and stepped close to him. His Adam’s apple bobbed as he could not decide whether to look at her or look down. He was surprised when she kissed him deeply, passionately, and with excited tongue.

Then she grabbed his crotch and squeezed hard. He faltered yet did not cry out.

She dropped to a lusty octave. “I want you to do more tonight. I want you to sleep with me. I want you to fuck me. I want you to fill my throat and my pussy. I want you to get it out of your system. Because after tonight, you won’t get any without earning it. Can you agree?”

Alan thought of laughing but knew it was a bad idea. “I’m not sh-sure yet. We will need to pound out the details but yesss mmm I can agree to that for tonight.”

“Heh, pound. Yes, you can.” She released him, and he yelped out then stood straight. “I fully give you permission tonight. I mean, it will be a lower level of quality, I know. Caleb has an incredible cock, and you’ve got an average dick.”

“Fuck…” Maureen cleared her suddenly dry throat. “Well, I don’t want to be late for Hal. Greta says he has a surprise for me tonight. We’re going back to their house after dinner.” She stood with her hands on her hips and cocked a hip for a sexy pose. Her knockout red dress did everything it was supposed to. And her heels were ridiculously sexy with her black stockings.

“Well, how do I look, Cuck?”

“Perfect. Have fun. Be safe.”

They kissed a loving yet safe kiss. “Behave, or she won’t be the only one disciplining you.” He nodded and looked down. She then turned and kissed her daughter in the same way, even though the little brat slipped tongue in. “Hey, don’t break him. I’ll need him in the morning.” And with that, she was out the door.

The smell of her Dior lingered for a moment, mixing with the tension in the air. Daughter was having scorching thoughts. Father was nervous as hell. And both of them were beyond horny.

Alan spoke cautiously. “I know it’s early…You want to…?”

“Don’t you have grading?”

He didn’t respond. He just looked at her with a desire that went beyond anything she had ever seen. This new relationship was going to be very intense. Her pussy pulsed and she felt her moisture surge.

Rather than answer, she took off up the stairs; delighted to hear her father following.

***

His caging followed a week later.

He sincerely argued the point with a good defense, but his less-than-esteem won the day.

A naked Rebekah tried out her doctor voice. “From everything I’ve read, there’s no medical harm. And huge emotional and sexual benefits.”

In one more perversion of “normal life”, mother and daughter had gone shopping together. But this time it was...