Big-bottomed chick Evie Christian penetrated by massive cock

Evie is studying hard to become a nurse and spends hours reading anatomy books. When she reaches the part about the male reproductive system, she looks at it puzzled. She doesn’t even know what semen is and how it works, so she needs some visuals to understand it better. The only man around the house is Austin, her younger and lazy stepbrother, who doesn’t want to help her. But nothing will stop Evie from getting her degree in nursing, even if it means surprising Austin in his bed and checking out his “reproductive system” from up close. Plus, she really needs an insight on how it works so she might have to stimulate his stepbro’s anatomy for a little while to see it in action. The adamant boy soon becomes fully supportive of his stepsister’s career and experiment so she will also have to show him her gratitude for playing along.