Johnny didn't do too well on his essay for his criminal justice class, so his professor, Missy Martinez, calls him in to discuss it. She has to go over DNA collecting with him, and while she does, she reminds him of the numerous places DNA exists ... such as saliva ... and semen! But she gives him a hands-on demonstration of collecting sperm but kneeling down and sucking his big dick! he returns the favor to his teacher and collects her pussy juice when she sits on his face! Hot professor, bit tits, hard fucking on her desk ... sounds like an education to me!