Hello, boys. Welcome to my physical education class. You will excercise a lot today but not your whole body. We will focus on the most important muscle you have. Who can tell me what is the most important muscle for you in your young age? Brain? No. It's your penis! And I will teach how to excercise this muscle. I know you masturbate every day but I am a woman with experience and I will show you how to do it properly. Now, dont be shy, take off your pants, I will put some music on and we can start. Just follow the rhythm and my instructions. I will guide you up to the sweet end;)