The latest installment of the Taiwan Comprehensive University 108 Transfer Exam Calculus A series features Teacher Zhang Xu. This amateur video is perfect for those who enjoy watching college students explore their sexuality in a safe and consensual manner. The scene opens with Teacher Zhang Xu engaging in a steamy encounter with her male student, showing off her impressive oral skills and expertly performing various oral sex acts on him. Her boyfriend is also present, enjoying every moment of it as they engage in passionate and intense sex. The video ends with both of them reaching orgasm together, leaving viewers feeling satisfied and fulfilled.