Fantasy Biology Lesson with me my Sister and her class mates

In this steamy fantasy, I play the role of a charismatic biology teacher who decides to spice up the lesson for my sister and her classmates. As I explain the intricacies of human anatomy, I invite each student to the front of the class to participate in a hands-on demonstration. My sister, eager to impress her teacher, volunteers first and soon finds herself in a passionate embrace with me. As the class watches in awe, we explore every inch of each other's bodies, pushing the boundaries of education and desire. Will we be able to complete the lesson, or will our passion take over? Find out in this unforgettable fantasy biology lesson.