One can a lot about how well a guy fucks by the way he tugs his dick.  This is why I'm going to give you a lesson in how to jerk like you should fuck.  You have some nasty stroke habits, and I'm on a mission to break them.  I want to see you take your time, pace that orgasm, be a gentleman and make your lady cum first before blowing a big wad.  

I begin by having you tease your cock for me - making it swell and twitch, then I challenge you to pump yourself as fast as you can without cumming.  Edge yourself for me.  I know you are used to stroking out a messy load as fast as you can, but not today!  Today I want you to take your time.  Enjoy stroking your cock.  You are in no rush to cum.  As I instruct you on how to jerk, I begin to play with my pussy, edging myself towards a climax.  I instruct you to work from a slow stroke to a mad, thrusting beat as you imagine pounding that cock into a high pussy before counting us both down to an orgasmic release.