Lesson 10 - Space Boy
Lie on your back and cup your balls. Use vaseline to stroke yourself almost to the point of no return. After that hold in your jizz then calm yourself down (think of baseball). Raise your waist as high as you can and hump the air like a spaceship. I don't know why, but for me and twenty of my friends this works. Just remember to thrust the air and you'll shoot cum so far up you'll have plenty of time to roll over and protect yourself from the re-entry.