Naughty America - 小柄なアサ・アキラが眼鏡で教室でクソ

Asa is such a good student that she wants to take her mid-term exam early during her professor's office hours. He gives her the test, but before she's even done, she helps him solve a math problem on the chalkboard. Feeling disrespected, her professor decides to teach her a real lesson -- involving his dick in her mouth.