Human Behavior Observation Experiment
Copyright© 2025 by danbaifen
Chapter 7
Incest Sex Story: Chapter 7 - 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
Colin’s muscular lower body was fully exposed, with his thick purple-black penis sticking straight up between his legs, exuding a strong masculine scent.
Allison looked at her son’s unusually large penis in disbelief, and thought to herself, “Is this ... is this really a human thing? How can it be ... so big...”
Although I saw my son masturbating in the bathroom last time and he ejaculated on my face, I didn’t really look at his penis because I was shy at that time. Now when I looked at it carefully, I felt my face flushed and my breathing quickened.
“His father’s penis ... is probably not even half as big as his...”
As if he could see through his mother’s thoughts, Colin asked proudly, “Mom, is it big?”
Allison blushed and lowered her head, her eyes evading, and whispered: “Don’t say that...”
“Mom, hold it...”
Allison breathed rapidly, and subconsciously grasped her son’s cock, jerking it up and down awkwardly.
“Ah ... Mom...”
Colin sighed with pleasure and thrust his hips into his mother’s hands.
“Yes ... that’s it ... use a little more force...”
Allison blushed and quickened her movements. Fortunately, she had a lot of sexual experience and her hands were becoming more and more skilled.
Her slender fingers flexibly stimulated her son’s sensitive glans and coronal sulcus, as gently and considerately as if she were treating a lover.
Colin soon couldn’t stand this kind of stimulation anymore, and his breathing became heavier and heavier.
“Mom ... I’m about to cum...”
Colin said through gritted teeth, his eyes blurry.
“I’m going to cum on your face, don’t hide...”
Allison froze when she heard that, her eyes widened in horror. She couldn’t accept her son’s semen staining her face, it was too humiliating! She subconsciously wanted to let go and run away, but when she remembered APP’s threat, she had to endure the humiliation and kneel motionlessly under her son’s crotch.
“Ahh ... cum!”
Colin roared and thrust his waist forward. A large stream of thick semen spurted out and all of it was shot onto his mother’s fair and delicate face. The milky white turbid liquid covered her eyelashes, nose tip and cherry lips, which was extremely obscene.
Allison was filled with shame and anger, and she resisted the urge to vomit. She trembled as she took out her handkerchief and wiped the dirt off her face. At this moment, she felt extremely humble and unbearable, as if her soul had been tainted by her son’s semen.
“Mom, you’re so great ... so comfortable...”
Colin hugged his mother contentedly and kissed her lips.
“Mom, from now on, whenever I want something, you have to help me...”
Once the floodgates of reason are relaxed, desires will gush out like a flood breaking through a dam.
Under Colin’s persistent request, Allison has gradually gotten used to helping her son relieve his desire every day. Although she is still extremely ashamed, at least Colin promised not to really violate her, which comforts her a little.
Allison is willing to sacrifice her own dignity as long as she can keep this broken home.
This morning, Allison just woke up from her sleep and felt a hot and hard object against her thigh. She opened her sleepy eyes and found that Colin had gotten into the bed and was holding her legs and rubbing them hard.
“Mom, I want it again...”
Colin was full of energy and was aroused as soon as he woke up. He pulled off his pajamas impatiently, revealing his long and thick cock sticking up high between his legs, and looked at his mother eagerly.
Allison looked at her son’s ferocious penis with bulging veins and swallowed subconsciously. Over the past week, she had already known this weapon like the back of her hand. She had served it tirelessly every day, which made her develop an inexplicable dependence on the male sexual organ.
“Got it ... Mom will help you get it out right away.”
Allison murmured, holding her son’s penis skillfully and stroking it up and down. Her soft hands seemed to have magic, flexibly stimulating the glans and coronal sulcus, bringing Colin endless pleasure.
“Mmm ... Mom, you are really good at handwork...”
Colin panted comfortably and thrust his hips into his mother’s hand.
“Yes, faster ... use more force ... baby mommy...”
Allison obediently speeded up her movements, kneading her son’s testicles skillfully. Her slender white fingers were set off by the purple and thick penis, making them look even more slender and tender, presenting a kind of sad and beautiful feeling. She blushed and stared at the weapon in her hand intently, as if studying a work of art.
“Mom, look at me...”
Colin was unhappy with his mother’s distraction, so he turned her chin and made her look directly at him.
“You must serve me wholeheartedly and not be distracted.”