Human Behavior Observation Experiment
Copyright© 2025 by danbaifen
Chapter 14
Incest Sex Story: Chapter 14 - That night, Allison had a nightmare. She dreamed that she had committed incest with her son and got pregnant and married, and people found out. Everyone called her a slut, a shameless bitch, and a beast... She screamed "No..." When she woke up, she was already in tears.
Caution: This Incest Sex Story contains strong sexual content, including Incest Mother Sister
Allison gradually realized that her son truly loved her.
This kind of love is not only physical, but also comes from the heart. In his eyes, she is not only his mother, but also his princess, his only one.
Allison’s love for her son also grows day by day.
She enjoys being close to her son and also enjoys the feeling of being held in his hands and loved by him.
Every time she sees her son’s happy smile, she feels that all the suffering she had endured before was worth it.
She made up her mind to love this man for her whole life and be his eternal woman. Even if this love was not tolerated by the world, she would protect it to the end.
I have no regrets in this life to have such an unforgettable love.
Even if tomorrow is the end of the world, she will hug her son until the last moment.
“Colin, Mommy loves you. These three words are filled with all my tenderness and love. No matter when and where, I will be by your side, and walk with you to the end of your life.”
The sweet and sweet days passed quickly, a few months went by in the blink of an eye, and it was Mother’s Day.
That morning, Allison was awakened by the sound of a cell phone ringing beside her pillow.
I reached for my phone in a daze and saw that it was that damn APP that sent me a new task!
Allison clicked on the message with shaking fingers, and instantly all sleepiness disappeared. She opened her eyes wide, unable to believe the words on it: asking her mother to have anal sex with her son on Mother’s Day as the most special “gift” for her mother.
Her head buzzed and she felt as if struck by lightning.
“Oh my god, how could they make such a perverted request!? Although my son and I have done many intimate things during this period, it is still the last step after all. Anal sex ... isn’t that equivalent to real sexual intercourse?!”
She slumped down on the bed, feeling confused and upset.
Reason told her that this was wrong, it was incest, and she would go to hell.
But deep down in her heart, the lustful mother who was awakened by her son was ready to make a move.
She longed to be completely possessed by her son, to be one with him physically and spiritually ... even from behind...
“Ding Dong.”
There was a knock on the door. Allison hurriedly put on her clothes and opened the door calmly.
It was Colin, holding a large bouquet of bright red carnations in his hand.
“Happy Mother’s Day, Mom!”
Colin smiled brightly and put the flowers into his mother’s hands.
“I send you carnations, thank you for giving me the light of life.”
Allison forced a smile and took the flowers guiltily.
Looking at her son’s innocent smile, her sense of guilt grew stronger.
“How could I have such thoughts about my son? I am such an unfit mother!”
But Colin’s next words made her heart skip a beat.
“Mom, today I want to give you a special gift that you will never forget...”
There was a hint of intimacy in his voice and his eyes became hot.
Allison’s heart tightened. Could it be that he had also received the task from the APP? And was planning to do it?!
Colin leaned over close to my ear and his breath sprayed on my neck, which made me feel itchy.
“Mom, are you willing to satisfy me? Today is Mother’s Day...”
Allison blushed and looked away, her body trembling slightly at her son’s proximity.
She knew she should refuse, but her inner desires kept clamoring for her to give in...
Allison was pulled into the room by her son with some reluctance.
He locked the door and looked at his mother with deep eyes.
“Mom, I love you. Today, I want to give myself completely to you, so that you can have me forever...”
Before I could react, Colin kissed my mother’s lips, pried open her teeth and went straight in.
Allison gasped and subconsciously hugged her son’s neck, accepting his passionate kiss.
Colin’s kiss was extremely aggressive, with the ferocity of wanting to tear his mother apart and eat her up.
He sucked on his mother’s small lilac tongue, plundering the saliva in her mouth, wishing he could become one with her.
Allison was kissed until she was dizzy and her body was as soft as a puddle of water.
Seeing this, Colin took advantage of the situation and picked up his mother, walking towards the bed that had been prepared...
Carnations are placed on the bedside, and the fiery red petals are like burning desire.
Colin pushed his mother down on the bed, pressed on her, and impatiently tore off her clothes.
“Mom, I can’t bear it anymore ... Let me love you well...”
Colin pulled his mother’s panties aside while breathing heavily.
Allison shyly closed her legs, but her son forcefully spread them apart.
“You can only go in the back...”
Allison said, her face red as an apple.
The next second, a hot, hard object pressed against the crack of her buttocks.
Allison gasped, feeling her son’s ferocious desire.
“Mom, I’ll be gentle...”
Allison closed her eyes and took a deep breath. She made up her mind and raised her buttocks in an inviting gesture.
Son, come on ... Mom is yours...
With his mother’s permission, Colin roared excitedly, spread his mother’s buttocks, and pushed his hot glans against her shy anus.
Allison gasped in pain and subconsciously tensed her body.
“Be gentle ... this is my first time...”
“Mom, relax ... trust me...”
Colin leaned over and gently kissed the back of his mother’s neck, his big hands stroking her back.
Allison gradually relaxed, feeling her anus being stretched a little bit.
“ah...”
Allison moaned in satisfaction as her son’s huge cock entered her completely.
At that moment, she had a wonderful feeling, as if her soul was also filled and she and her son became one from then on.
The thick and long flesh blade was throbbing inside her body, and Allison could even feel the protruding meridians on it.
Colin began to thrust slowly, each thrust hitting deep into his mother’s rectum, causing her to moan in pleasure.
“Wife, you’re so tight and hot inside...”
Colin sighed with satisfaction and increased the speed of his thrusts.
He skillfully changed the angle and hit the most sensitive spot of his mother.
The pleasure came like a tide, Allison was pushed to the point of tears and her eyes rolled back.
“It feels so good ... It turns out that being possessed by the man you love is such a soul-stirring feeling ... Even though it’s just anal sex, it makes me unable to stop...”
The sound of water “puffing” echoed at the junction, accompanied by Allison’s moans of pain and enjoyment, interweaving into a lewd symphony of mother-son incestuous anal sex...
The bright red carnations placed on the bedside are gorgeous and exude a rich fragrance.
These beautiful flowers symbolize great maternal love.
But at this moment, the mother and her own son were doing something shameful in front of these flowers, desecrating the sanctity of maternal love.
Colin lay on top of his mother, his thick cock tirelessly moving in and out of her body.
The thick and long flesh sword hit that vital spot accurately every time, forcing the mother to cry and wail.
“Mom, your back is so tight ... it feels so good when you bite it...”
Colin bit my mother’s earlobe and moaned incoherently next to my ear.
The warm breath sprayed on Allison’s neck, causing a tingling sensation.
Allison moaned “ooooh”, she was fucked so hard that she was unconscious and couldn’t speak complete sentences.
The pink anus was already muddy, and as the son moved in and out vigorously, a “gurgling” sound of water was made.
If she was reluctant before, this time she completely fell into her son’s wild demands.
Colin rode on his mother like a hungry wolf, as if he wanted to tear her apart and eat her.
Allison could only lie down under her son, shaking her ass like a bitch, completely submitting to him...
The sound of flesh colliding, the sticky sound of water, and obscene moans intertwined together, creating a symphony of debauchery in this secret boudoir.
It was unknown how long it was before Colin stopped moving, pinched his mother’s slender waist, and poured his hot semen into her intestines.
The scalding liquid washed over the tender inner walls. Allison could no longer bear it and reached a climax while crying.
At that moment, both her soul and body were possessed by her son, and she felt that she completely belonged to him.
Afterwards, the mother and son lay on the bed hugging each other, calming down from the afterglow of the passion.
Colin gently stroked his mother’s sweaty hair and whispered in my ear: “Happy Mother’s Day, Mom ... I love you forever...”
Allison closed her tearful eyes and hugged her son tightly.