Huge foursome family fuck

My partner and I have been together for over 20 years.
We love each other very much and the sex between us is still very good. We have two children, a 17-year-old boy and a 15-year-old girl.

As I said, my partner and I have a good sex life, we usually fuck big ones. He likes it when I lick him, and he is happy to suck me if I want him to.

We always made sure not to disturb the children, or rather, that they don't hear or know when we are having sex. We have a big house, they have a separate room upstairs, and we also have a bedroom downstairs. Then recently it ended up falling apart, but it worked out well. In fact, it worked out well several times, if the reader understands. And it also turned out that it's not that strange for them when we have sex.
But I'll tell you what happened.

One night I offered my partner from behind. I love fucking from behind, she has a beautiful ass, and I can put my cock all the way into her pussy. Which she loves too, we do it a lot.
So, when this happened, we did it like that too. I was fucking her naked in doggy style, when suddenly the door to the room opens and I hear my daughter's voice.
- Oh my God, don't be angry, I leaned too hard against the door!
I looked back and saw Rachel and Thomas, standing in the doorway, in their nightgowns and pajamas, staring at us. My daughter looked at me, but not at my eyes, but at my cock. - Wow, dad. You know you have a nice big cock.
To this my partner replied: - And if you knew what he could do with it.. if you want, you can try it.
- Are you stupid? Should I fuck my own daughter?
- Why not, she's just a woman, just like me. He already knows what a big dick his father is. And he's said more than once that it would be nice if you fucked him too.
- What??? - I asked back - do you guys talk about things like that?
- You don't know a lot about us.
- Oh, dad. I've spied on you several times. Mom knew too, but she didn't tell.
- Don't tell me that he did it with your mom too...
They both laughed at that.
- I'll leave it to your imagination - my partner said.
Then something occurred to me:
- And you Thomas? Was there anyone in the family?
He laughed, but before he could speak, his mother took over.
- What do you think? Of course... - he said laughing. - He's jerked off on me countless times, and I was the first woman he's ever fucked.
But Rachel also spoke up.
- Thomas is really good in bed, believe me, dad!
At that point I didn't know what to say. But then anyway.
- Oh, great. I have a nice little family. You guys took turns fucking each other without me knowing. But I'm going to get revenge for that. I'll fuck you too, Rachel. Come on, son, get your mother treated, and I'll get your sister treated!
Rachel is mine, my wife, and she started sucking my son's cock in a way that surprised me.
I grabbed the back of my daughter's neck and pushed my cock all the way down her throat. As I looked down, I saw that while she was sucking me, she reached between her mother's thighs and started fingering her pussy.
But there wasn't much time to stare. My son knelt between his mother's spread thighs, put his head on her pussy, and unconsciously started licking it. My wife tensed her body, grabbed Thomas' head, and pressed it against her pussy:
- Yes, yes, lick it! Lick your mother out!
Suddenly my wife started screaming and her body started shaking. My daughter grabbed her brother's head and they started rubbing each other.
-Now fuck mommy Thomas, I want to see it! And you dad, my pussy is hungry, come fuck me so mommy can see it!
-Yes dear, do what your daughter asks, fuck the little whore!
I pushed Rachel down on the bed. I leaned over to her pussy to lick it, but she pulled me up to her:
- No, no! Don't lick it now! I want your cock now! - she shouted at me.
She grabbed my cock and put it at the entrance of her pussy. It was terribly wet, I didn't hesitate for a moment and pushed it in for her.
- Yes, yes! Yes! Fuck me! I want to cum on your cock! - she shouted.
She was just as willing to fuck as her mother. I could see on his face that he was already very into her.
By then I could feel from the undulations of the bed that Thomas and his mother were fucking wildly next to us. I looked over and saw my son fucking his mother with all his might. I stopped too, stuffing myself. I saw my wife kneeling on the edge of the bed, and my son standing behind her, grabbing her ass from behind and shoving it into her with terrible force. He was fully immersed in his cock, pulling it in and out wildly, and regularly fucking his mother, who was moaning loudly from this.
Rachel wrapped her arms around me, pulled me in all the way, and whispered:
- Yes! Fuck me! Fuck me! Fuck my pussy!
I just fucked, fucked, fucked with all my might.

Rachel reached back, grabbed my balls and pulled my cock in even further.
-This is how I'm going to cum.- I said.
-I want you to cum inside my pussy. Shoot your cum inside me!- my daughter shouted.
We fucked for maybe ten minutes.
I saw my wife's face contort, like when I'm fucking her in the face, and her eyes widened. She had an orgasm.
I can't describe the sight of two women, each filled with a cock, shaking and jerking on the bed next to each other, while the two cocks went in and out of them. My daughter also came the moment her mother came.
The sight and the sight of my daughter's tight pussy and her twitching body made me stop, I couldn't hold it back. I squirted all over Rachel's pussy. Thomas did the same to his mother, filling her with grunts.
We both got out of the fucked up pussy, our cum dripping out.

After that, we just lay there, the four of us, side by side, content.
Rachel didn't leave him speechless:
- Dad, Mom. That was amazing. Please, let's do it like this again, the four of us!

The next night we had another big fuck: I fucked my partner and my son fucked his sister.
I accepted that everything had changed permanently and, to be honest, it was okay.