I orgasm easily through masturbation, but not with my partner. Why is this?

Whether you’re a man or a woman, it’s always easier to reach orgasm through masturbation.  Everyone knows which movements, speed, pressure and position work best for them.  On average, we need less than three minutes to reach orgasm alone, which is a lot less than you need when making love!  It takes time to get to a point in the relationship where you feel comfortable enough with your partner to show him exactly what to do, but communication is the key.  Remember that he won’t know what to do automatically, you’ll have to give him a helping hand