Cassie's Turn

That menage a trois took care of them for the afternoon, sending them all off into a satisfied snooze. Thus, they were still naked and lying tangled together, when Karl and Kirsten walked into the open bedroom. "Mom, Dad, Cassie! Boy, this incest thing of ours has become inescapable! Seems like all of us are getting involved in it.", Karl stated. His voice awakened Vicki, who then woke up Dan and Cassie.

"Well, Karl, it is only natural that Cassie get her chance to fuck us, isn't it, my sweet boy?", Vicki replied to her son. "I guess you're right, Mom, but to catch you guys with her like this, when she was totally out of the loop as recently as yesterday, is still somewhat of a surprise.", Kirsten then said. "Pleasant or unpleasant, my lovely daughter?", Dan asked her. "Pleasant, of course, Dad, but still a suprise nonetheless.", Kirsten clarified. "Well, your mother and I need to recuperate a little more, given our age, but we'll join you in a while." , Dan told her. "Does that mean that we can take charge while you're resting- you know, giving Cassie more of an orientation?", Karl inquired. "Naturally, that's a given, Karl, since you're well rested and alert.", Dan told him.

Karl and Kirsten brought Cassie into Natalie's bedroom, since Nat was off on a shopping trip with Bridget and little Brian (Dan's son by Bridget). They locked her into the bed's hidden "sex trap", which consisted of secret manacles connected to the bedposts. "What are you guys doing to me?", Cassie asked in a sudden panic- she had not planned on bondage. "We are going to dominate you for the rest of the afternoon.", Karl announced. He then, swiftly, without warning, thrust his cock into her pussy, with none of his Dad's gentleness.

Kirsten positioned herself in a 69 with Cassie, making a cunnilingual orgasm unavoidable. She just kept kissing and licking Cassie's cunt, while rubbing her pussy onto her face and mouth. Poor Cassie had no way of resisting, because, while if she had definitely said no, they would have stopped, the momentum they had seized gave her little time to think about whether or not she was willing to do this act. The incessant pleasure in her sex and mouth had her reeling and incapable of doing anything but accept the triple stimulation she was receiving.

This 69 made Karl hornier than he had been in a couple of years, and the 20 year old just had to unleash his sperm. This just sent Cassie into an immediate climax, which quickly prompted Kirsten's. Karl let Kirsten fondle his dick for a few seconds, and when it was hard again, he stuck in her mouth, screwing her face for 5 minutes, as she deep-throated him, making him release yet another shot of semen. She did not release his cock from her mouth, however, since she wanted him hard once more, so that he would fuck Cassie's ass. Sure enough, he shoved that considerable wood into Cass's booty, making her scream for about 30 seconds, until she began to acclimate to the penetration of her ass.

"Oh, Karl, my dear brother, please don't quit this- it is magnificent!
", she pleaded at last. "My sweet sister, I never planned to withdraw yet, since I want to cum in your butt.", Karl answered his desperately horny sister. He continued to ramrod his sister, as Kirsten made sure not to slack in her 69. His cock was unstoppable and unmerciful, royally sodomizing Cassie, as she began to cry from the happiness of getting it from at least one of her brothers.

It took half an hour for Karl to get hard after his next ejaculation, but Kirsten determined to take his cock in her arse. She simply put herself on top of Cassie, riding her sister's cunt with her own. This new stimulus was really working on Cassie, who could not keep herself from having several repetitive orgasms. Karl then spread his sister's available cheeks, ran his mouth along the crack for a few minutes, moistening Kirsten's keister for more action, before he commenced the penetration of her posterior. "Karl, you are going to kill me one of these days with this kind of fucking!", she declared, knowing that such talk inevitably made him want to fuck her even harder.

Karl's anal rodeo act was pushing Kirsten further into Cassandra, causing the 2 muffs to get wetter still. The series of spasms that followed made the girls lose all apparent awareness of their surroundings, as they diddled each other's cunts and Karl banged Kirsten's butt. When he shot off this round, however, he was spent, and so were they, lying there in the post-coital glow that occurred when their climaxes had joined his own. 

Later that day, Bridget and Natalie brought Brian home, tucked him into bed (which took a few minutes, of course), and went to Natalie's room, only to find the siblings in bed with each other, with Karl on top. Natalie decided to use this for her pleasure, getting on her knees behind Karl, grabbing his hips, and deliberately diving her tongue into his anal region. That woke Karl up abruptly, and he looked at the hallway, to see Bridget smiling and laughing at his particular wake-up call. He realized that someone else was rimming his rear, and it was probably Natalie. "Nat, I hope you're fine with our using your bed- it helped us in seducing Cassie.", he said at last.

"Now, Karl, if was I angry with you over anything, why would I pleasure your butt with my mouth? I am delighted that you felt at home enough in my bed, after our many shags, to fuck your sisters there.", Natalie informed him. Meanwhile, Bridget strapped on a dildo, went up to Natalie, and just shoved it into her ass. This kind of painful, but delightful entrance made Natalie even more intent on eating Karl's ass. He, in turn, put his cock into Kirsten's pussy, which just pressed it further downward onto Cassie's sex. The 5 of them were grinding them bodies into each other's, causing all of them to have an impossible time of holding out on their orgasms. 

First Karl, then Natalie, followed by Kirsten, Bridget, and Cassie all came in turn. When they were done, Natalie planted a delectable kiss on Bridget's lips, saying, "Thanks for butt-fucking me, girlfriend- for that, you deserve a taste of Karl's juicy ass. How is it, my love?"

The 4 of them agreed to leave Cassie on the bed for the night, so that Trent could get his way with her body, and then Bridget and Natalie could use her as well. 

Trent was greeted by the girls when he entered the house (he had moved back in by now), and they led him into Natalie's room, claiming that his "gift" would be worth the time it took to get there. There was Cassandra, sprawled out and manacled to the bed, just waiting for a cock to fuck her hard. "Trent, my brother, the guys left me here to be fucked by you, so do it, please!", Cassie begged him.

He began to eat her pussy, making her scream yet again, and getting his sexy sister hot and bothered in her helpless situation. When he saw that he could indeed fuck her any way he wished, with any fear of her objecting to it (as she evidently wanted him), he just seized her hips, lifted her thighs, and pushed his cock into her backdoor. Cassie screamed once more, but she was clearly not trying to get him to stop. She was enjoying it, as he probed her butt for several minutes, unaware that Natalie and Bridget were sneaking up on him to have their way with his own ass.

First, the girls just fondled his cheeks, then they parted them to tickle his crack, and after that, they put both of their tongues into his rectum at once, penetrating that way for a second, before licking his ass all over, from the tailbone to the space next to his scrotum.
"Girls, are you planning to keep that up, because it is pushing further toward cumming?", he asked them at last. They snickered, then said, "Trent, we are going to eat your ass until you have cum at least once inside Cassie, and are ready to fuck us too."

In moments, he was doing just that, and his milky semen filled his sister's ass to her obvious satisfaction. The girls were true to their word, and his cock got hard within seconds of softening, making him ready to fuck Bridget and Natalie. They started eating Cassie now, sharing her cunt just like they had shared his butt, as they invited him to fuck each of them in rotation. He masturbated Bridget while licking Natalie, then switched, and followed this up by entering Bridget's pussy. This doggie-style sex really had her going, and Trent kept masturbating Natalie as he screwed Bridget, so that 
all of the girls came together, compelling his cum to evacuate his balls. 

Bridget sighed, and she looked at him for a moment with total gratitude, sending him the non-verbal message that she would be game for that at any time in the future. Then, Trent inserted his manhood into Natalie, getting her especially turned on, even as he played with Bridget's pussy again. While all of this happened, Bridget and Natalie had their way with Cassie orally, even rimming her ass a bit.
She felt like her whole lower half was being massaged by those lips and tongues, especially Bridget's pierced tongue.

Trent kept pumping into Natalie, masturbating Bridget, and thrusting them further into Cassie, until he heard a voice saying, "So, how are they, son?" It was Vicki, Dan was with her, and the rest of the family's adult members were watching, as they stroked their genitals in delight at the view. "They are splendid, Mom, as I'm sure that you know, being one of their lovers. I can't believe we have not fucked each other until today.", he answered. "That's because you have been living on your own until recently- I take it that your wife could never accept your new lifestyle? Well, much as I hate to see you lose your house, I am glad that you live with us again, since it means that we get to fuck you.", Vicki told him.

Trent had to agree with her there, as he came for the final time that night, shooting his sperm into Natalie's womanhood. Little did they all know that this night would make the fertile Natalie and Cassie pregnant, both of them by one of the brothers. Natalie conceived by Trent, and Cassie by Karl. Most importantly, however, Cassie got her orientation in detail over that weekend, with her finally getting to fuck all of the grown-ups in the family.

(The next story will be set a year later, and emphasize Hector.)