Man, back in the day, people really had no idea about sex.  Check out what has to be the creepiest sex education video ever, featuring a middle aged man and a teen who is all wet and sticky.

LiveLeak

First of all, are wet dreams even a real thing?  In my entire life, I have never had one.  Probably because by the time I was old enough to have one, I was already feverishly pounding away on myself.  Secondly, the old dude in this video is a predator, plain and simple.  When he's about to tell the kid how to clean up, you seem him moving the blanket and starting his head in the southbound direction.