Allison’s step sister, Lucas, was the same age as Allison. They became sisters when Allison’s mother remarried Lucas’s mother. In contrast to Allison’s effeminate nature, Lucas acted like a boy, true to her name. Perhaps lesbianism ran in the family because Lucas, like Allison, loved boobs and girls. Allison was bi, but Lucas was a girls only type of girl. The funny thing about Lucas was that the girl possessed a sinfully sensual body with larger than average breasts and big hips with a bubble butt in complete opposite of her boyish nature.
To Allison’s slutty mind, her sleeping step-sister was like water to a thirsty person, highly desirable. Possessed by her uncontrollable libido, Allison climbed onto her sister’s bed and lined her enormous cock to her sibling’s tiny slit, barely aware that her actions caused Lucas to stir awake.
“Allison? What are you doing on my bed?” Lucas questioned.
“Breeding…” Allison replied in a trance.
To the poor girl under Allison, she knew that her virginity was in danger. Lucaus knew of her sister’s massive dong, and there was no way she was going to her first time with her fat cocked sister.
“Allison you slut! Get off me! You have a boyfriend so go fuck him!”
Uncaringly Allison’s forced her large throbbing shaft to Lucas’s vagina and thrusted with mindless glee, taking her stepsister’s virginity unceremoniously. With Allison balls deep in her, Lucas was speechless as pain and pleasure rocketed her mind, she was spilt on her stepsister’s unbelievable cock.
Allison mashed her boobs against Lucas’s fat breasts and her thighs smacked Lucas’s jiggling ass as she pulled out and thrusted again and again like a breeding animal. Lucas’s breath was knocked out as every motion of Allison burning spear of conquest used Lucas’s body to get off, uncaringly of the recipient’s wellbeing.
In a cruel twist of fate, Allison didn’t unload her seed as easily as she did in her masturbations, so Allison spent the day fucking the life out of her busty assed stepsister. It was only when school was over and Luke and Allison’s mother came to find her that Allison knocked up her step sister with a massive load of white jizz that bloated her unconscious sister’s stomach and spilled out of the girl’s pussy. Lucas had orgasmed countless times being fucked by her slut of a stepsister, one could only hope she would regain consciousness in the following months.