I was told by Nurse Cindy that there were two boys in the exam room for extra credit...I HAD to see what this was all about. Apparently, my health ed colleague instructed Leo and Mason to pay me a visit for extra credits in his class. Since I had a few moments to spare I thought I'd humor these two. I showed them how their penises work when they get an erection using a picture diagram then, I insisted they try it out in practice. I told Leo to drop to his knees and suck on Mason's monstrous dick. My jaw dropped when I saw Leo totally deep throat Mason cock without so much as a gag! Leo sucked Mason's dick like there was oxygen in his balls! As the passion grew they started kissing while I worked on Leo's rod. We went back and forth until Mason busted his load all over Leo's face and mouth!!