Professor's calculus class: Cumulating integrals, climaxing equations

Math professor Zhang Xǔ, renowned for his engaging teaching style, takes a unique approach to explaining continuous functions. He uses real-life examples, like continuous orgasms, to illustrate the concept. In this lesson, he discusses the rules of operation for continuous functions, his voice echoing in the classroom as students diligently take notes. Meanwhile, hidden desires stir among some students, their bodies reacting to the professor's unexpected metaphors.

• 微積分
• 數學
• 方程式
• 教授
• 連續
• 潮吹
• 射精
• 後入
• 肛交
• diy

• Verified Amateurs
• SFW