Movie description: Zarena Summers gets called in to her geology professor's office coz on a quiz from final week that babe answered that the hardest known substance known to chap is a cock. Professor Bailey isn't likewise glad that she is not taking the course seriously, but when she shows him how hard a penis can acquire by kneeling down and sucking his and letting him fuck her warm pink bawdy cleft, it turns out the wicked schoolgirl was right.