Watch Sex-Ed Teachers in Heat 3 Full Movie Free Online 123Movies. These professors are going to teach sexual education first hand. The best way for their special students to learn is by doing. As a professor, nothing is as rewarding as seeing your students going out into the real world, aka frat parties and spring break, and using the vital skills they've learned in class. So click through and watch as these professors teach their students to fuck and suck the correct way.