Chapter 23

“What on earth is going on here...” Mom had just finished an orgasm, and her whole body was immersed in a sea of pleasure. On her naked body, those two beautiful big breasts rose and fell on her chest with her breathing; especially those two bright red nipples were covered with a lot of saliva, which looked both charming and lustful.

My aunt and I collapsed on the bed, both too tired to move. I looked at my aunt and found that her eyes were much clearer and not as strange as before. My aunt also looked at my mother and me, and her expression became very unnatural.

“I ... I just ... seemed to have lost control...” My aunt looked like a little girl who had done something wrong, with a shy and embarrassed expression; her face, which was already flushed due to lust, was even redder.

My aunt was right, she really lost control just now.

At the beginning, my aunt asked my mother and me to have sex in front of her, saying that this would allow us to better observe the effects of the C3 antigen. My mother and I agreed and, barely holding back our shame, had sex as mother and son in front of her aunt.

But unexpectedly, my aunt suddenly joined in.

And he is not in a very clear mental state!

My aunt’s behavior was really beyond my mother’s and my expectations. What we didn’t expect was that after losing control, my aunt actually had a strong interest in my mother’s body.

When my mother was riding on my body in the woman-on-top position with her vagina moving up and down around my cock, my aunt pressed her body tightly against my mother, and her beautiful hands kept touching my mother’s beautiful body.

If it were just that, it would have been fine, but my aunt actually grabbed my mother’s soft big breasts, kneading them like dough, grabbing the two lumps of breast flesh, squeezing and kneading them non-stop. I could even see the elastic breast flesh squeezing out from between my aunt’s fingers.

While my mother was having sex with me in the woman-on-top position, her very sensitive breasts were being stimulated by my aunt. Her delicate little pussy was contracting and wriggling faster and more forcefully than before, making me so excited that I was speechless.

Under such stimulation, my mother soon gave a wonderful moan, and a stream of vaginal fluid spurted out from her lower body onto my glans.

But, I didn’t expect this wasn’t the end...

Just after my mother had her orgasm, my aunt actually hugged my mother’s body from behind. Then, as my mother exclaimed and I looked on in astonishment, she grabbed my mother’s two big breasts from behind and pinched the two pink nipples with her fingers.

Then, the aunt hugged my mother tightly in her arms and kissed her. Her cow-like breasts pressed against my mother’s back, squeezing her into a flat circle.

“This ... this...” I watched this scene while gasping for breath.

What a erotic scene. Mom was completely naked and riding on me, her pink hips pressed tightly against my thighs, her private parts tightly connected to my penis, her narrow, tight and warm vagina still squeezing my penis; my aunt hugged Mom’s body from behind, her two rosy and attractive lips were passionately pressed against mine, and her two soft and fragrant tongues were constantly entangled under my gaze, making a sizzling sound of saliva, stimulating my sexual desire.

“Ha ... Caitlin ... you ... you are so beautiful ... so attractive...” Aunt kissed my mother while caressing her body; she even took one hand away from her breast and reached towards my mother’s private parts.

When my aunt touched my mother’s clitoris, which had just experienced an orgasm, my mother’s whole body trembled slightly and she let out a delicate moan from her nose.

“Ah ... ah ... sister ... don’t ... don’t tease me anymore ... why ... why have you become so weird...” Although my mother said this, she did not resist at all. Instead, her body became even more excited under my aunt’s kiss.

Not only that, I could even feel my penis inserted in my mother’s body being squeezed by the tender flesh in her vagina at a faster frequency. Could it be that my mother was actually made more sensitive by my aunt?

Thinking of this, I don’t know why I have a very strange feeling in my heart. On the one hand, I have the possessiveness of a child, the kind of feeling that I don’t want my most precious mother to be taken away by others; but on the other hand, the one who makes me feel this way is my aunt, and my aunt is a woman ... a woman whose virginity I just took away...

Moreover, we are relatives by blood. This feeling is really strange.

Looking at my mother kissing my aunt, they seemed to ignore my existence. I deliberately stretched out my hands and gently pinched my mother’s fragrant and smooth white thighs, and said to her: “Mom, you just had an orgasm, why is your pussy still so tight...”

After saying that, I deliberately pushed my penis inside.

“Ah~” My mother’s pussy was extremely sensitive after her orgasm, and she couldn’t help but scream out when I hit her like that.

My aunt’s face was red, as if she was in heat. Seeing my mother screaming because of my thrusting, she became even more excited. With one hand, she stroked my mother’s pubic mound and fiddled with her pubic hair. With the other hand, she kept grabbing my mother’s breasts, pinching the erect nipples from time to time.

“Sister ... are you comfortable?” Aunt separated her lips from mother and looked at her good sister whose eyes were blurred by her kiss. A hint of excitement appeared in her irrational eyes.

“Ah ... comfortable ... comfortable...” Mom said in a daze.

“Since it feels good ... let’s continue...” Aunt licked her lips and said, hugging my mother’s body tightly from behind; her breasts, which were even more swollen and bigger than my mother’s, pressed against my mother’s back from behind; then, aunt hugged my mother’s body like this and started shaking.

“Um ... ah ... sister ... don’t ... um ... ah...” My mother was held by my aunt and her body was shaken, and her lower body also moved; pushed by external force, her delicate private parts twisted and rubbed and squeezed my penis.

“Ah ... Auntie ... you...” My penis, which had just begun to soften, instantly became excited again under such friction and stimulation. The entire penis was wrapped in the flesh wall of my mother’s vagina, trembling, and this pleasure was simply irresistible.

My aunt held my mother’s body and kept shaking it. When my mother’s and my genitals were closely connected, my aunt seemed to be excited as well.

Even more, my aunt took out one hand and reached for her private parts. Because it was blocked by my mother’s body, I couldn’t see what my aunt’s hand was doing, but judging from the way her arm kept twitching and the obvious blush on her face, my aunt must have been masturbating while shaking my mother’s body.

“Oh my God ... what is ... going on ... Mom is being hugged by my aunt ... shaking her body ... having sex with me ... My aunt is also taking advantage of my mom in front of me ... touching my mom’s breasts...” My mind was completely confused, it was a mess; but the pleasure coming from my body was so great that I had no time to think about what was going on with my aunt.

In this way, this very strange behavior continued for more than ten minutes.