Human Behavior Observation Experiment
Copyright© 2025 by danbaifen
Chapter 5
Incest Sex Story: Chapter 5 - 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
In front of the camera, Allison was crying as she struggled to recite the lines sent by the scary APP: “Mission ... accomplished ... I will always ... obey you ... please ... please don’t hurt my family...” Before she finished her words, she could no longer hold on and fainted.
That terrible app is like a leech that won’t go away.
It had only been one day since she had masturbated in front of her son, but this day had felt so long to her, as if it had been a century.
Just as she was still immersed in shame, the terrible reminder sound rang again.
Trying her best to suppress the grief and despair in her heart, Allison tremblingly picked up her phone and clicked on the evil APP interface. As expected, a new task notification had been waiting for a long time, like a sword of Damocles hanging over her head.
Allison bit her lip and clicked the message with tears in her eyes.
The APP’s reward mechanism and the next task come into view:
“Dear Allison, congratulations on completing another test! As a reward, we have deposited 50,000 yuan into your account. But this is just the beginning. If you want to get rid of us completely, you need more points. Let’s take a look at your next task: Tomorrow when your son gets home from get off work, you have to try to swallow his semen without leaving a drop! Remember, you can only use your mouth and hands. We will monitor the whole process, and you will lose points if you do not do well!”
Allison’s eyes went dark and she almost fainted. She covered her mouth with trembling hands, unable to believe that there was such a perverted and vicious request in the world. She was asked to swallow her own son’s semen. Was he asking her to perform a pornographic skit in public? This was a hundred times more humiliating than being raped by her son. It was simply naked humiliation!
Allison collapsed on the bed in despair, tears streaming down her face. For this family, she had already sacrificed all her dignity and sold her body. But this devilish app was not satisfied and wanted to ravage her personality and soul as well! She wished she could die right now, so that she wouldn’t have to face the questioning of her son and daughter, the endless demands of the evil app, and the shameful self deep in her heart.
She turned over weakly, and then she found a note under her pillow. She unfolded it tremblingly, and saw that it was written in a flamboyant style: “Dear mother, I know you don’t want to do all this, but no matter what, mother, I don’t want to hurt you, I love you!”
The note fell to the ground and Allison closed her eyes in despair.
She had no choice but to continue along this path of no return, falling step by step into the abyss of hell from which there was no escape.
In the endless darkness, Allison gradually fell into a coma, but nightmares followed one after another. She dreamed that she was kneeling under her son’s crotch like a bitch, licking his purple-black big cock uncontrollably with her tongue. Colin grabbed her hair hard, pressed her head to his crotch, and thrust deep into her throat.
“Eat it, Mom. Eat it all. Don’t leave a drop!” Colin roared, and his waist moved back and forth wildly, forcing the strong masculine scent into his mother’s body.
Allison coughed violently, tears and saliva all over her face, like a bitch being abused by her master. Finally, Colin growled, and thick and smelly semen gushed out, choking her and almost suffocating her.
“No ... stop...”
Allison shook her head desperately, trying to escape from her son’s grasp, but Colin laughed and held his mother’s head tightly, forcing her to swallow what was in her mouth.
Allison closed her eyes in pain and was forced to swallow, saliva flowing freely from the corners of her mouth.
“Good mother, you really know how to suck!”
Colin played with his mother’s powerless body wantonly, like a prostitute.
“Let your mother drink her son’s semen every day from now on. I guarantee that you will become more and more charming, and your pussy will be fucked into the shape of this cock by your son!”
Finally, Allison woke up from the nightmare, crying. Cold sweat soaked her vest, and her body was cold and sticky. She trembled and touched her lower body, and found that her underwear was soaked.
Unable to tell whether it was sweat or vaginal fluid, Allison bit her lip in shame. Even in her dream, her body instinctively felt a shameful pleasure from her son’s rough treatment.
Just then, there was a gentle knock on the bedroom door.
Allison shuddered and pulled the quilt over herself reflexively. She only heard Colin’s deep voice outside the door: “Mom, I heard you were having a nightmare. Are you okay? Can I come in and see you?”
Allison curled up stiffly in the bed, feeling like a lamb to be slaughtered. She knew her son was outside, waiting to see her and would rush in and eat her up at any time. But what else could she do except to accept it?
“Mom ... Mom is fine.”
Allison choked up and answered, trying not to let her voice reveal her fear. “Go to bed quickly, you still have to go to work tomorrow. Mommy ... Mommy will complete the task well...”
Colin whispered outside the door: “Okay, Mom, go to bed early. I love you...”
A sleepless night.
Allison got up from the bed at dawn. Her face was as pale as paper, with two big dark circles under her eyes. She washed herself mechanically, stared blankly at her haggard self in the mirror, and a bitter smile appeared at the corner of her mouth. Allison, who was once full of vigor and vitality, now had to seduce her own son and swallow his semen. What could she do about it?
Allison trembled as she opened the closet and pulled out a set of sexy lingerie. A translucent lace bra, a low-cut, backless suspender nightgown, and crotchless thong panties. She closed her eyes and put on this unsightly outfit, feeling like a call girl about to receive a customer. She suppressed her shame and examined herself in the dressing mirror.
The two breasts on her chest were full and straight, almost bursting the fragile lace. The snow-white breasts overflowed from the edge of the cup, and the deep cleavage was even more obvious. The slender legs stretched out from the hem of the nightgown, and the skin was shining seductively in the morning light. The hidden triangle area was looming, exuding the breath of a mature woman.
“Mom, is breakfast ready? I’m hungry.”