Family Therapy
Copyright© 2026 by Vanpeebles
Chapter 5: A Conspiracy Forms
Incest Sex Story: Chapter 5: A Conspiracy Forms - Upon discovering their eldest son and daughter are having sex, a couple consults a therapist, who plots to have the whole family, as well as her own, join them.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa mt/ft Ma/ft mt/Fa Fa/Fa ft/ft Fa/ft Ma/Ma Mult Teenagers Consensual BiSexual Fiction Incest Mother Son Brother Sister Father Daughter Group Sex Orgy Anal Sex Analingus Cream Pie First Masturbation Oral Sex
Angela decided now was the time to make the push. The O’Connell family was primed, and all they needed was a good shove to make them give in to their incestuous desires. But one thing held her back. That was Zach.
She still wasn’t sure if he was bisexual; he definitely was into women, but was he into men, too? It wouldn’t matter in the end, but whether he was or not would determine how she would get them there. And who would be the best choice to see how he responded to more overtly sexual male attention? Should she have her husband play the role of a father figure? Or would Zach be more comfortable with a peer, like Carter? After some thought, she settled on Jim. This was the more direct but higher risk route. If Zach were bi or heteroflexible, an approach by a father figure would set him up nicely for sex with his parents. But if Zach wasn’t bi, it would be easier to recover from a misstep with a fellow teen, while Zach having a negative reaction to sex with a father figure would set her project back considerably, if not end it all together.
She decided that the high-risk approach would be best. It was a bit risky, but if it didn’t work, she could rely on Thea and Alex, not to mention her own feminine charms, to keep him on track.
So the next Monday Zach was sitting in her office with her and Bill. Zach seemed more nervous than usual.
“How are things, Zach?” Angela asked.
“Okay, I guess.”
He was clearly going to be evasive, so Angela became more direct. “Did you have sex with your sister since we last talked?”
He fidgeted and after a moment answered, “Yes.”
That was unsurprising, but there was more to it. “Okay, something’s up, Zach. What is it? You can be honest with me. You know there’s no judgment here.”
He didn’t answer. Angela just let them sit in silence until Zach finally fessed up, “Alex and I had sex with Molly.”
“Oh!” This surprised Angela, and she was seldom surprised by her patients. Things were clearly moving faster than she had hoped in the O’Connell household. “Tell me about it.”
Zach related what had happened last week, and at the end she asked, “And how do you feel about it?”
“I don’t know. I guess it was wrong, but...”
“It felt good.”
Zach nodded. Angela had a decision to make. This was not in her plan. Should she adjust or stick with her plan? Maybe going the mother route instead of the father one was what was needed here. Or maybe, she thought, she could accelerate the process and do both.
“Bill, why don’t you sit in the chair over by the wall. We’ll do your roleplay later in the session.” She had made up her mind. As her husband left the couch, she stood up and took his place next to the boy.
“Zach, before the other day, had you ever had the desire to have sex with Molly?” Angela leaned towards the boy, brushing up against his arm and thigh.
Zach could feel the heat of her body as it touched his. The older woman smelled of scented soap, a scent that was familiar, but he couldn’t place it. He could feel his cock start to stir. He blushed in anticipation of the embarrassment of pitching a tent in front of his therapist and this other man. “No, she’s always been like a little girl.”
“So the first time you noticed that she had become a young woman, you had sex with her.”
“Yeah, but only because of Alex.”
“Are you blaming your desires on your other sister?”
“No, that’s not what I meant. I mean that if Alex hadn’t been having sex with her already, I wouldn’t have.”
“In that moment, did you want to have sex with Molly, or were you just doing it because Alex wanted it?”
“No, I wanted it.”
“Do you still want to have sex with her?”
“Yes.”
Angela couldn’t help but notice the growing tent in the teen’s pants. She gently placed her hand on his thigh and leaned in, so that her right breast was touching his arm. “Your mother is a very attractive woman, is she not?” There, the seed was planted, thought Dr. Wilson.
“I guess so.”
“You only guess so?”
“Yes, she is.”
“Have you ever thought about sex with an older woman?” That’s right, she thought, shift the topic away from his mother so he doesn’t fixate on that.
“What do you mean?” Zach was desperately trying to make sense of this line of questioning. Was Dr. Wilson implying he should have sex with his mom? With her?
“I mean that have you ever looked at woman who was your mother’s age, one of her friends maybe, and thought that you’d like to have sex with her?”
“Yeah.”
“Of course, all teenage boys do. Don’t feel bad about that. Having an experienced woman show them the ropes is something all straight boys want.” Her hand on his thigh inched closer to his crotch. Nicely done, she thought. If he was nervous about Bill’s presence or about any latent same-sex attraction, this would keep the focus on the heterosexual.
“Have you ever thought about having sex with me?” And noticing Zach growing redder as she said this, added, “There’s no need to be ashamed or embarrassed. Lots of people fantasize about sex with their therapist. It’s pretty common. We call it ‘transference.’”
Zach hesitated, then finally answered in the affirmative. “After Molly told us what you and she had done.”
“Only after that?”
“No, but I before that I didn’t think...” he trailed off.
“You didn’t think it would be possible?”
“Yeah.”
“Do you still want to have sex with me?”
The boy nodded.
“You know, transference is called that because the patient transfers feelings they have for another person onto the therapist. Is there an older woman you have feelings for?”
Zach didn’t answer.
“There’s no woman you don’t have strong feelings for?”
Finally he answered, “My mom, I guess, but I never...”
“You never thought about sex with her? Or you never thought it would be possible?”
“I don’t know.”
“Did you ever fantasize about her while masturbating?” Her hand was now against his cock. She could feel its hardness through his clothing.
“Sometimes,” he said, looking down at his feet.
“Zach, look at me.”
The teen turned toward the older woman, and she leaned in and kissed him on the lips.
Zach couldn’t believe this. He was thoroughly confused. This gorgeous, busty woman his mom’s age was kissing him, with tongue! Yet thoughts of his mother kept flying through his head.
He could feel her hand stroking his cock through his pants as their tongues intertwined. She was leaning into him harder, and he could feel her breasts against his body. He closed his eyes, and when her lips left his to nuzzle his neck he breathed in deeply. That scent again, only this time he recognized it. It was the same scent his mother had.
She started tugging insistently at his shirt, and he allowed her to remove it. Then she sat back, and he watched as she unbuttoned and removed her shirt. Her breasts were restrained by her bra, but as she reached behind her back and unclasped it, they swung free. Zach’s eyes grew wide. They were mammoth, and capped with large, pink nipples, the points of which were hard like pencil erasers. Were his mother’s like this? They were big, but he didn’t think this big.
Angela grabbed the boy and pulled him to her breasts, burying his face between the pillowy mounds. Instinctively he reached out and took one in his hand and started sucking at the nipple. Angela moaned, “That’s it. Yes.”
She ran her hands over his hard, teen body as he continued to worship her breasts. Then she reached down and unbuckled his belt and unzipped his fly. Then she said, “Stand up and get undressed.”
He complied. And she stood as well and slipped off her skirt and panties, kicking her shoes off as well. Zach looked at the woman. She was so unlike his sisters physically. They were slim and lithe. She was round and curvy. Their pussies had a soft down patch. Hers was shaved clean. She was more like his mother, only curvier and softer.
Then she gently pushed him back onto the couch and settled down between his legs, where she got her first look at this cock, which was already standing at attention. A rather nice one, she had to admit. Taking the shaft in one hand, she started to lick around the head.
Zach closed his eyes and imagined it was his mother who was going down on him. It was a wrong thought, but he didn’t care.
Then he felt as second mouth on his cock. He opened his eyes and saw that both Angela and Bill were licking up and down the shaft. Zach had forgotten Bill was still in the room. He was also naked, evidently having stripped when Zach wasn’t paying attention.
The sight and sensations of the man and woman jointly going down on him was too much, and Zach sent gobs of spunk flying into the air, landing on both their faces and all over his lower body. Then Zach watched as both of them licked the cum from his body and then from each other’s faces. They were smiling, enjoying the taste of his seed and the shamelessness of what they were doing. Then they kissed, exchanging his semen between them.
“Now, my boy,” said Angela, “would you like to return the favor?” She lay back on the couch and spread her legs.
Zach needed no further invitation. He dove down and began lapping away at her hairless pussy. It tasted like his sister’s, which surprised him. But the scent was different. The musk was the same, but it was mixed with that perfumy scent that Angela shared with his mother. Soon she was trembling with an orgasm.
Pushing his head away from her quim, she said, “Now Zach, do you want to return the favor to Bill?”
“I’m not gay.”
“That’s obvious. But that doesn’t mean you can’t sometimes have fun with another guy. How about if I join you and we both do it, like Bill and I did to you? That way it won’t be ‘gay,’ because you’re doing it with a woman, too.”
The teen turned to the older man and found himself face to face with a large, circumcised cock. It was bigger than his own. He was at a loss as to what to do.
Then Angela said, “Watch me, and do what I do.” With that, she leaned in and kissed the head. “Now you try it. Just give it a kiss.”
Zach leaned in and gave the cockhead a quick kiss. That wasn’t so bad. In fact, it was kind of exciting. He could feel his own cock start two come back to life.
“Now, just run your tongue down the side of the shaft. Like this.” And she did just that.
Zach joined her, and the pair spent several moments traveling up and down Bill’s shaft with their tongues.
“Now, try to take it into your mouth.” She demonstrated his also, bobbing up and down the shaft, getting about half of the big cock down her throat.
She stopped and offered it to Zach. “Don’t try to deep throat it. Not at first. Just get as much in you mouth as you comfortably can.”
Zach did so, swallowing several inches of the man. His own cock was steadily growing.
As the teen worked up and down, getting a bit more into mouth, he watched as Angela slipped underneath and took the man’s balls into her mouth, teasing them with her tongue before going further back and licking his taint.
Bill groaned, and Zach could feel the warm gush of cum fill his mouth. He hadn’t expected that, and much of it drooled out of his mouth, but it was not unpleasant. It was, in fact, rather tasty, although a bit slimy.
“Oh, I’m sorry, dear,” said Angela. “That happened faster than I expected. I had hoped to prepare you better.” With that, she started to lick off the cum that that had dribbled onto Zach’s chin.
“That’s okay. I kinda liked it.” Then looking up at Bill, he said, “How was it?”
“Very nice, especially for a first time. You’re a natural. I told Angela that I thought you were bi.”
Angela reached down and stroked Zach’s cock, which was now fully hard again. “Now, do you want to fuck me?”
The teen settled in between her legs, his cock pointing at her pussy. It took him a moment to find the opening to her vagina—he was, while eager, still rather inexperienced, she noted. But soon he was thrusting in and out of her.
Angela closed her eyes, and a moment later she felt her husband’s tongue on her left nipple. The dual sensation, tits and pussy, was delightful. She moaned slightly. Taking this as a cue, Zach sped up his thrusts, and soon he was jackrabbiting her.
“Oooh, slow down,” she pleaded. “It’s a marathon, not a sprint.”
The boy complied. She could feel her husband smiling as he suckled her. And soon Zach was engaged in a steady rhythm of thrusts. He was tickling her in all the right places, and she could feel her orgasm building. And a moment later she was moaning and trembling, rocking with pleasure. Soon after that, She felt Zach stiffen and his cock twitch inside her, delivering its load of cum.
The trio settled on the floor, leaning against the couch, Zach between the two adults. There were a few moments of quiet while they caught their breath, then Angela leaned over and kissed Zach. Then, to her delight, Zach turned and kissed Bill. The boy was definitely bi.
“What do you think of that, Zach?” she asked.
“It was great.”
“And did you like sucking a cock? Your first, I presume. Will it be your last?”
“It was nice, but I definitely like girls more. But probably not my last.” There was a pause, then Zach continued, “You smell like my mom. I get the feeling that you’re hinting that I want to have sex with my mom.”
“Do you?” Angela asked. She let the comment about scent drop. She was wearing the same perfume as Pris deliberately, but the boy didn’t need to know that.
“I mean, I hadn’t really thought about it before, but now I’m thinking about it all the time.”
“That’s the way with desire. Once we discover it, it doesn’t go away until it’s been fulfilled, and maybe not even then.”
“But are you saying that I should?”
“It’s not up to me. Do you want to? That’s the question.”
“I guess. Yes.”
“Do you want to have sex with your father? Do you want to suck his cock and have him suck yours?” said Bill.
A look of fear passed over Zach’s face. Angela thought that it wasn’t the way she would have phrased it, but the timing of the question was spot on, and maybe the boy needed to be shocked into fully embracing his bisexuality.
“I’m not gay,” said the boy.
“No one thinks you are,” said Bill. “I’m not. It’s just about giving and receiving pleasure from the people you love, regardless of their sex.”
“Can I be honest with you, Zach,” said Angela. “I usually wait to have clients come to their own conclusions about such things, but in your case, I think I should tell you. It’s clear to me that you’re bisexual with a preference for women. If you embrace that, you’ll have a lot more opportunities, not to mention joy and fun, when it comes to sex. Should you have sex with your parents, that’s up to you and them. It’s okay if you don’t want to, and it’s okay if you do. Just follow your desires.”
“I think I do, but I don’t think my parents feel the same way.”
“Well, I think the jury is out on that,” said Angela. “But that is also the case with any relationship, male or female, family or friend. Both people have to want it.”
Zach nodded in recognition.
“Now, what do you think we should do for our next session. I think it would be good to have you and your two sisters in here together. I think we’ve progressed to that point. What do you think?”
Zach nodded vigorously.
“Good, I’ll call your mom tonight and ask to have the three of you in for a combined, two-hour session instead of separate sessions for Alex and Molly this week. Now, go get cleaned up. Your mom is probably already waiting for you in the coffee shop.”
Zach hastily cleaned himself in the bathroom and combed his hair, which had become a bit disheveled. Then he returned to the office, dressed, and kissed Bill and Angela goodbye.
“How did it go?” Pris asked when he met her in the coffee shop.
“It was good.”
“Do you want anything before we drive home? Latte? They make a good coffee cake here.”
“No, I’m good.”
Pris wished her son would share more, but he was a male, and a typically moody teen at that. She wanted to hug him and tell him that everything was fine, that she wasn’t mad at him, that what he did with his sister wasn’t so bad. But in her own mind she was afraid that if she took him in her arms, she might go too far and give in to her own illicit desires.
On the ride home, Zach couldn’t help but notice his mother’s lavender scent. He surreptitiously kept glancing at her, noticing the curve of her breasts and the way her leggings accentuated her calves. Despite having been drained twice in the last hour, he grew hard again.
The silent ride home was uncomfortable for both.
Two days later, the three teens gathered in Dr. Wilson’s waiting room. They were waiting silently and nervously. Zach had told his sisters of what had transpired during his session, although he left out the part about him giving Bill a blowjob. So all three were expecting to have sex, but exactly what Dr. Wilson had planned was a mystery to them.
The door to the office opened, and Dr. Wilson beckoned them in. Bill was inside, waiting for them. It was the first time that Molly had seen the man whom her siblings had told her about. He was handsome. Both Alex and Zach had said he reminded them of Dad, but Molly didn’t see it. Other than in general age and build, they didn’t look all that much alike. She wondered whether she would end up having sex with this silver fox. All three teens noticed that a mattress was now on the floor, in addition to the usual office furniture.
“I think it would be healthy for the three of you to experience what it is like with a mature man,” said Dr. Wilson. “It’s good to establish relations with those of your own age, but an older, experienced guide can help you learn much faster. I can help you in this, but I’m not a man.”
The teens didn’t say anything. Clearly, they were a bit intimidated and uncertain. So Angela went on, “Why don’t we all get undressed. I can see you’re feeling vulnerable, and I think your clothes are giving you a kind of shield. The sooner you discard that shield, the sooner you’ll become more comfortable.”
That seemed counterintuitive to the three teens, but she was the doctor. So all five quickly and unceremoniously shed their clothes. The teens sat back down on the couch and Angela in her chair. Bill remained standing. Molly and Alex couldn’t help but stare at the man’s large cock, which was already half erect. Zach conspicuously avoided doing so.
“Now, Zach is the one who has been with Bill before, so why doesn’t he break the ice. Zach, why don’t you suck Bill’s cock.”
The two girls looked at their brother, who reluctantly stood up, walked over to Bill, and knelt down before him. Zach took the man’s cock in his hand and started to suck on it. His sisters stared in amazement. Their brother was sucking a man’s cock! And evidently he had done it before!
They watched as Bill’s cock grew fully hard. Alex felt that familiar horny tickle between her legs, and she slipped one of her hands down between them to offer some relief. Molly noticed what her sister was doing and did the same. It was so hot!
After a minute or two, Angela spoke again, “Molly, would you like to give it a try?”
Molly’s eyes went wide. She wanted to, yet something held her back.
Zach finally found his voice. Sometime while he was sucking, he simply gave in to the desire and started enjoying himself. Now he wanted to share that with his little sister. “C’mon, Moll. It’s fun. You’ve sucked my cock. This one is just bigger.”
Angela smiled. It was starting to work.
The fourteen-year-old got off the couch and took the few steps toward the older man. She knelt down, and Zach guided the man’s cock to her mouth. She gave it a kiss. And when nothing bad happened, she swirled her tongue around the head and then took it into her mouth. She got about three inches in. It smelled and tasted like her brother’s. He was right; it was just bigger. Soon she was bobbing up and down on Bill’s prick.
Zach returned to the couch, and Alex whispered to him, “Watching you suck his cock was so fucking hot!” That pleased Zach.
Again, after a few minutes, Angela said, “Alex, do you want to give it a try?”
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